JP4239260B2 - Cooling system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooling device using a heat exchanger that exchanges heat by flowing a high-temperature air flow and a low-temperature air flow adjacent to each other.
[0002]
BACKGROUND OF THE INVENTION
The present inventors have devised a cooling device for exchanging heat between a high-temperature air flow in a sealed space and a low-temperature air flow such as outside air as a technique for preventing a temperature rise in the sealed space in which a heating element such as an electric device is arranged. (Not a known technique).
As shown in FIG. 3 , the cooling device includes a heat exchanger J1 that allows a high-temperature air stream and a low-temperature air stream to flow adjacent to each other, and a high-temperature blower J2 that supplies the high-temperature air stream to a high-temperature air flow passage of the heat exchanger. And a low-temperature blower J3 for supplying a low-temperature air flow to a low-temperature air flow passage of the heat exchanger, and a casing J4 containing these.
[0003]
[Problems to be solved by the invention]
Heat exchanger J1 used in the above cooling device, as compared with the conventional heat exchanger (Fig. 5 and cross-flow heat exchanger shown in -a, countercurrent heat exchanger shown in FIG. 5 -b) Thus, low pressure loss and high heat exchange efficiency are realized.
However, as shown in FIGS. 3 and 4 , since the fluid inlet / outlet in the heat exchanger J1 is provided perpendicular to the wall surface of the housing, the opening of the fluid inlet / outlet of the heat exchanger J1 is consequently reduced. Therefore, there is a problem that the pressure loss of the fluid becomes high at the entrance / exit (lower pressure loss than the conventional one).
[0004]
OBJECT OF THE INVENTION
The present invention has been made based on the above circumstances, and an object, the opening of the fluid inlet and outlet of the heat exchanger is increased, to provide a cooling device capable of enhancing the cooling却効rate.
[0005]
[Means for Solving the Problems]
[Means of Claim 1]
By providing the fluid inlet / outlet in the heat exchanger with an inclination, the opening area of the fluid inlet / outlet can be increased as compared with the case where the fluid inlet / outlet is provided vertically. Thereby, the pressure loss at the fluid inlet / outlet can be suppressed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment modes of the present invention will be described using a plurality of examples.
(First embodiment)
FIG. 1 shows a first embodiment adopting the means of claim 1, FIG. 1 is a schematic side view of a cooling device, and FIG. 2 is a perspective view showing a fluid inlet / outlet of a heat exchanger.
[0008]
The cooling device 1 includes a heat exchanger 2 that performs heat exchange between a high-temperature air flow (for example, high-temperature air in an enclosed space) and a low-temperature air flow (for example, outdoor air), and a high temperature that supplies the high-temperature air flow to the heat exchanger 2. It comprises a centrifugal fan 3 for cooling, a low-temperature centrifugal fan 4 for supplying a low-temperature air flow to the heat exchanger 2, and a housing 5 covering these.
The heat exchanger 2 is formed of a metal material having excellent thermal conductivity such as aluminum or brass, and as shown in FIG. 2, a high-temperature air flow passage A through which a high-temperature air flow flows and a low-temperature through which a low-temperature air flow flows. The air flow passages B are alternately arranged so that the high-temperature air flow flowing through the high-temperature air flow passage A and the low-temperature air flow flowing through the low-temperature air flow passage B are separated from each other (dividing the high-temperature air flow passage A and the low-temperature air flow passage B). Heat exchange via a wall).
[0009]
When the high-temperature centrifugal fan 3 and the low-temperature centrifugal fan 4 operate, high-temperature air in the sealed space flows through the high-temperature air flow passage A, and low-temperature air that is low-temperature outside air flows through the low-temperature air flow passage B. Heat exchange with the air stream is performed, and as a result, the hot air stream is cooled and returned to the enclosed space.
[0010]
As shown in FIG. 1, the fluid inlet / outlet ports of the heat exchanger 2 of the first embodiment are both inclined. Specifically, the entrance / exit of the high-temperature air flow passage A and the entrance / exit of the low-temperature air flow passage B are inclined as shown in FIGS. 1 and 2.
Thus, by providing the fluid inlet / outlet at an inclination, the opening area of the fluid inlet / outlet can be increased, and the pressure loss at the fluid inlet / outlet can be suppressed. And the cooling efficiency of the cooling device 1 increases by suppressing a pressure loss.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a cooling device (first embodiment).
FIG. 2 is a perspective view showing a fluid inlet / outlet of a heat exchanger (first embodiment).
FIG. 3 is a schematic side view of a cooling device .
FIG. 4 is a perspective view showing a fluid inlet / outlet port of the heat exchanger.
FIG. 5 is a perspective view of a main part of a heat exchanger.
[Explanation of symbols]
A High-temperature air flow passage B Low-temperature air flow passage 1 Cooling device 2 Heat exchanger 3 High-temperature centrifugal fan 4 Low-temperature centrifugal fan 5 Housing

Claims (1)

A heat exchanger for performing heat exchange between the Atsushi Ko air flow and low temperature air flow,
High temperature fans that generate a Atsushi Ko air flow in the heat exchanger,
And cold fan cause low temperature air flow into the heat exchanger,
A housing containing the heat exchanger, the high temperature fan and the low temperature fan;
A cooling device comprising:
The heat exchanger, it both the fluid inlet and outlet are provided inclined,
The heat exchanger alternately arranges a plurality of high-temperature air flow passages (A) through which a high-temperature air flow flows and low-temperature air flow passages (B) through which a low-temperature air flow flows, and generates a high-temperature air flow and a low-temperature air flow. , Heat exchange is performed through a partition wall that divides the high temperature air flow passage (A) and the low temperature air flow passage (B),
Each partition wall has a hexagonal shape, and the high temperature air flow passage (A) and the low temperature air flow passage (B) are formed between the partition walls,
The high-temperature air flow passage (A) and the low-temperature air flow passage (B) have a hexagonal shape as viewed from the stacking direction,
Each of the high-temperature air flow passage (A) and the low-temperature air flow passage (B) is composed of two hexagonal partition walls and three sides of the outer periphery between the two partition walls having six sides because of the hexagonal shape. And a three-side closing member that closes
The three-side closing member closes the side along the inner wall surface of the casing (5) and the two sides adjacent to both sides of the outer periphery between the two partition walls having six sides, and the remaining three sides. The heat exchanger includes the three-side blocking member provided in the high-temperature air flow passage (A) and the three-side blocking member provided in the low-temperature air flow passage (B). The cooling device is provided alternately in the stacking direction .

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