JPS6018873Y2 - Heat dissipation device for sealed control equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a heat dissipation device for a sealed control device such as a sealed inverter device.

Traditionally, inverter devices suck outside air into the device to cool heat-generating elements such as resistance elements, reactors, and semiconductor elements installed inside the device. Otherwise, if outside air is sucked in, the inside of the device will be contaminated and cause a malfunction.
The device itself has a sealed structure, and the air inside the device is forced to circulate through the flow path of the radiator attached to the back of the device.
The outer surface of this radiator is brought into contact with external air for cooling.

Therefore, the purpose of this invention is to standardize heat radiating devices used in sealed control equipment and improve economic efficiency by applying panel cooler type radiators such as those used in transformers. The radiator, which is attached to the side of the sealed control equipment body, is composed of upper and lower pipes, and multiple heat radiating panels fixed through the upper and lower pipes in a skewer shape. Anti-corrosion treatment is applied to the air flow passage communicating with the above body,
The circulating medium of the heat radiator is air instead of oil as in a transformer, and there is no risk of rusting.

This invention will be explained below with reference to illustrated embodiments.

In the figure, reference numeral 1 denotes a control equipment body such as a sealed inverter device, in which a blower 2 is provided along with heat generating elements such as semiconductor elements, resistance elements, and reactors.

3 and 4 are mounting brackets 5 and 4 on the back side of the control device main body 1, respectively.
The upper and lower heat radiators are attached to the upper and lower heat radiators by 5, and each of these radiators is composed of a vibro, 7, and 5 heat radiator panels 8, which are fixed through the upper and lower pipes in a skewered manner. The upper and lower vibrators, 7 are 5 installed in parallel.
They communicate with each other via a pair of heat dissipation panels 8.

Reference numeral 9 indicates a lid that closes the upper and lower vibrators and the opening 10 on the non-installation side of 7, and this difference is removed during the rust prevention treatment described later, and when the rust prevention treatment is completed and the radiator 3.4 is assembled. , which can be attached with screws 11.

Note that the mounting side openings 12 of the upper and lower vibros 7 communicate with the inside of the control equipment main body 1, and the mounting side openings 12 of the upper vibros of the upper heat radiator 3 are connected to the blower 2, and furthermore, the upper heat radiator 3 is connected to the blower 2. The lower pipe 7 of the vessel 3 and the upper vibro of the lower radiator 4 are connected within the control device main body 1 by a connecting pipe 13.

Next, a procedure for assembling the heat dissipation device of this invention will be explained.

First, the radiator 3゜4 with M9 removed was subjected to a ribbon de-treatment using a dipstick to improve the paint coverage, and then an undercoat was applied using a dipstick.
Apply anti-rust treatment to the inner and outer surfaces of 4.

In each of these treatments, the rust preventive agent remaining inside the radiators 3 and 4 is removed from the upper and lower vibros, and the openings 10 at both ends of the radiators 7.
．． It will be removed from 12.

Usually, the outer surfaces of the heat sinks 3 and 4 are further coated with a top coat.

Next, after closing the openings 10 on the non-installation side of the upper and lower vibrators 7 of the radiators 3 and 4 with the lids 9, the radiators 3 and 4 are mounted on the back of the control equipment main body 1 using the mounting brackets 5.5. Fix it.

In the heat dissipation device assembled in this way, by operating the blower 2, the air inside the control device 1 is
2 and sent to the upper vibro of the upper radiator 3,
From here, it is distributed to each heat dissipation panel 8 and collected by the lower pipe 7.

Then, it is blown out from the lower pipe 7 into the control device 1 through the connecting pipe 13 and through the lower radiator 4 through a similar route.

On the other hand, external air comes into contact with the outer surfaces of the radiators 3 and 4 and is heated, forming an upward current and rising, and the air inside the radiators 3 and 4 is cooled by this natural convection. .

Normally, as the flow rate of air flowing inside the radiators 3 and 4 increases, rust tends to occur on the inner surfaces of the radiators 3 and 4, but rust prevention treatment is applied as in this invention. If you leave it there,
There is no need to worry about rust forming.

In addition, although the above-mentioned embodiment showed the anti-rust treatment by bonding and undercoating, the radiators 3 and 4 may be crushed in a hot-dip galvanizing solution to perform the anti-rust treatment.

As described above, this idea consists of a radiator attached to the side of a sealed control equipment body, consisting of upper and lower pipes, and a plurality of heat radiating panels fixed through the upper and lower pipes in a skewer shape. Since the air flow passage inside the radiator that communicates with the main body is treated with anti-corrosion treatment, the radiator can be standardized, significantly improving economic efficiency, and increasing the flow rate of air flowing inside the radiator. However, rust does not form on the inner surface of the radiator; it has the advantage of being free from scratches.

Further, since a standard panel cooler used in a transformer can be used as a radiator, it has the advantage of being inexpensive and easily available.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the heat dissipation device for a sealed control device according to this invention. figure,
FIG. 3 is a rear view of the radiator with the lid removed. In the figure, 1 is the closed type control equipment body, 2 is the blower 13, 4
is a radiator, 5 is a mounting bracket to the main body, 6 is an upper pipe, 7
8 is a lower pipe, 8 is a heat radiation panel, and 9 is a lid.

Claims (3)

[Scope of utility model registration request] (1) A closed type control equipment main body having a blower and a control device installed therein, a radiator attached to the side surface of this main body, and having an air flow passage inside the main body communicating with the main body; The radiator is composed of upper and lower pipes and a plurality of radiator panels fixed through the upper and lower pipes in a skewer shape, and the radiator is a closed type control characterized by being treated with anti-corrosion treatment. Equipment heat dissipation device. (2) A heat radiator for a closed type control device according to claim 1, which uses a radiator equipped with a lid that closes openings on the side opposite to the installation of the upper and lower pipes. (3) A heat dissipation device for a closed type control device according to claim 1, which is obtained by subjecting the heat dissipator to rust prevention treatment by soaking it in a rust preventive material.