JPS608536Y2 - Cooling device for rotating electrical machines - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a cooling device for a rotating electric machine.

The first is what is generally known as this type of device.
As shown in the figure.

In Fig. 1, 1 is a cooler box, 2 is a cooler inserted into the cooler box 1, 3 is a drain receiver for the cooler 2, and 4 is a rotary ti
5 is a fan that circulates the air inside the rotating electric machine, 6 is a shaft, 7 is a coil, and 1 is a core.

Next, the operation will be explained.

When the shaft 6 rotates, the air sent to the coil 7 by the fan 5 and the heated air passing through the inside of the core 8 are transferred to the cooler box 1.
to go into.

This air is cooled by passing through a cooler 2 inserted into a cooler box 1.

At this time, the water condensed in the cooler 1 is discharged from the drain receiver 3 to the outside.

However, since such a conventional structure uses a radial flow type, two or more coolers are always required, ranging from small capacity to large capacity, due to the ventilation structure.

Therefore, there were drawbacks such as high costs for manufacturing the cooler, man-hours for the cooler box, and work costs.

This idea was made with the aim of solving the above-mentioned drawbacks of the conventional technology.In addition to installing one cooler in the cooler box, a partition member is used to divide the cooler into two in the ventilation direction. The purpose of the present invention is to provide a cooling device which fully satisfies the conventional functions by providing a cooling medium and arranging the ventilation direction of the cooling medium with respect to the cooler in the opposite direction.

An embodiment of this invention will be described below based on the drawings.

3 and 4, 2 is a cooler provided in the center of the cooler box 1; 11 is a partition plate that divides the cooler 2 and the cooling box chambers on both sides thereof into two in the axial direction; .10 is a partition plate that is bent in opposite directions from both ends of the partition plate and connected to the inner wall of the cooler box 1, respectively;
In each compartment divided into two by 0.10, the upper end is connected to the lower surface of the drain receiver 3, for example, the lower surface of the drain receiver 3, and the partition plate 11 is arranged on the opposite side of each partition plate 10, and the upper end is connected to the lower surface of the drain receiver 3.
and an inclined partition plate connected to the inner wall of the cooler box to guide air to the cooler 2.

Reference numeral 3 denotes a drain receiver, which is disposed close to the lower part of the cooler 2. Its edge on the partition plate 10 side is separated from the partition plate 10 to form a ventilation passage, and both ends are connected to the inner circumferential surface of the cooler box 1. is fixed to,
The center portion is divided into two by a partition plate 11.

Note that the other configurations are the same as those of the prior art, so explanations will be omitted.

In this device, the air heated by the coil 7 and core 8 is guided and cooled by the partition plates 9 and 10 provided in the cooler box 1 to the cooler 2, which is divided into two by the partition plate 11. .

Air cooled by the cooler 2 enters the frame 4 through windows on both sides, and the air inside is circulated.

In this embodiment, a cooler for internal cooling of a rotating electric machine is shown, but in a cooler equipped with a plurality of coolers, each with independent ventilation passages, the cooler can be cooled by inserting the partition plate as described above. Of course, the number can be halved.

As mentioned above, according to this invention, by inserting a partition plate into the cooler and cooler box, the number of coolers that conventionally required two was reduced to one, and the structure is also simplified and the work cost is greatly reduced. and become cheaper.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing a conventional cooling ventilation structure, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is a longitudinal sectional view showing an embodiment of this invention, and Fig. 4 is a longitudinal sectional view showing a conventional cooling ventilation structure. FIG. 3 is a sectional view taken along IV-IV in FIG. 3; In the figure, 1 is a cooler box, 2 is a cooler, 3 is a drain receiver, 4 is a frame, 5 is a fan, 6 is a shaft, 7 is a coil, 8 is a core, 9, 10, and 11 are partition plates. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] In a radial air type cooling system in which one cooler is provided above the main body of a rotating electric machine, a partition plate 11 is provided that divides the cooler 2 and the cooler box chambers on both sides thereof into two in the axial direction. Partition plates 10.10 are provided which are bent in opposite directions from both ends of the partition plate 11 which is divided into two parts in the axial direction and connected to the inner wall of the cooler box 1, respectively. It is arranged on the opposite side of each partition plate 10 in the compartment, and its upper end is installed close to the lower part of the cooler 2 to receive the drain from the cooler 2, and between the edge on the partition plate 10 side and the partition plate 10. are separated from each other to form a ventilation passage.Both ends are fixed to the inner peripheral surface of the cooler box 1, and the center part is the partition plate 1.
A cooling device for a rotating electric machine, which is connected to a drain receiver 3 which is divided into two parts at 1, and is provided with inclined partition plates 9, 9 which are connected to a partition plate 11 on both sides and an inner wall of a cooler box.