JPS5856536Y2 - Overheat prevention device due to direct sunlight - Google Patents

Description

[Detailed description of the invention] This invention is an apparatus for storing a heating element inside a casing installed outdoors, cooling the heating element with a fluid, and cooling the fluid with a secondary heat exchanger. This invention relates to a device for preventing overheating of a housing due to direct sunlight.

FIG. 1 shows a conventional casing installed outdoors and its attached equipment.

In FIG. 1, reference numeral 1 denotes a housing, and a heating element 2 cooled by a fluid, generally a liquid, is housed inside the housing 1.

Reference numeral 5 denotes an air-cooled secondary heat exchanger, in which the heat transferred from the heating element 2 to the liquid is guided to the secondary heat exchanger 5 by a pump 4 through a pipe 3, and is then released to the atmosphere, where it is cooled. The heated fluid is returned to the heating element 2, cooled and circulated.

In the device shown in FIG. 1, the housing 1 is installed outdoors, so the roof of the housing 1 is exposed to direct sunlight, and during summer, etc.
In particular, when the housing 1 is made of steel plate, the housing 2
The inside of the unit may overheat abnormally.

To prevent this overheating, as shown in Figure 2,
A heat insulating material 6 is placed on the back side of the roof of the housing 1 to prevent heat from being transferred to the inside of the housing 1, and an opening is provided in the housing 1, and a ventilation fan 7 is installed here to draw air from the roof into the inside of the housing 1. The heat transferred to the casing 1 is released to the outside, and a heat exchanger 8 such as a cooler is provided inside the casing 1 to cool the inside of the casing 1, or a combination of these methods is used. There is.

However, no matter which of the cooling means shown in FIG. 2 is used, there is a drawback that other materials or equipment that are not originally related to cooling the heating element 2 are required.

The purpose of this invention is to eliminate the above-mentioned drawbacks and to prevent the casing from overheating due to direct sunlight using only the basic components shown in Figure 1, thereby saving materials and reducing costs. There is something to do.

Examples of this invention will be described below with reference to the drawings.

FIG. 3 shows an embodiment of this invention, in which numeral 1 denotes a housing, and within this housing 1 a heating element 2 and a pump 4, which are devices that generate heat, are housed.

5 is a secondary heat exchanger, and this heat exchanger 5 is attached to the roof 1 of the housing 1.
The heating element 2 is installed on top of the heating element 2, covering most of it, and is connected to the heating element 2 through a pipe 3 via a pump 4, and cools the heating element 2 by circulating fluid between the heating element 2 and the heating element 2.

The secondary heat exchanger 5 receives most of the direct sunlight directed toward the housing 1 and releases the heat caused by this irradiation.

If an air-cooled type is used as the secondary heat exchanger 5 and the cooling air 9 is taken in between the roof 1a of the housing 1 and the secondary heat exchanger 5, the secondary heat exchanger The casing 1 is cooled by the cooling air 9 of 5, and even when direct sunlight leaks through the secondary heat exchanger 5 and is irradiated, the casing 1 can be cooled more reliably.

FIG. 4 shows another embodiment of this invention, in which fins 10 are provided on the roof 1a of the casing 1, so that the casing 1 can be cooled more effectively.

As explained above, according to this invention, the secondary heat exchanger 5
By providing this on the roof 1a of the casing 1, the secondary heat exchanger 5 blocks most of the direct sunlight on the roof 1a of the casing 1. The heat exchanger 5 itself can emit heat from direct sunlight, and since the secondary heat exchanger 5 is an air-cooled type and has means for sucking cooling air from between the roofs, the housing 1 is cooled by this cooling air. Therefore, overheating caused by direct sunlight inside the casing 1 can be prevented, and materials can be saved, even though the components that are originally necessary for this type of device are not required. This has the effect of reducing costs.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of a conventional device in which a heating element is housed inside the casing, and Fig. 2 is a vertical cross-sectional view of the device in Fig. 1, illustrating a conventional means for preventing overheating of the casing due to direct sunlight. , 3rd
The figure is a perspective view showing one embodiment of this invention, and FIG. 4 is a perspective view of essential parts showing another embodiment of this invention. 1... Housing, 1a... Roof, 2...
...Heating element, 3...Pipe, 4...
Pump, 5... Secondary heat exchanger. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In a device that includes an outdoor-installed casing that houses a heating element inside and a secondary heat exchanger that cools a cooling fluid for the heating element, most of the direct sunlight is on the roof of the casing. The secondary heat exchanger is installed such that the secondary heat exchanger is irradiated with air, and the secondary heat exchanger is an air-cooled type, and cooling air is supplied from between the secondary heat exchanger and the roof of the housing to the secondary heat exchanger. 1. A device for preventing overheating caused by direct sunlight, characterized in that the device is equipped with a means for inhaling air.