Radiating module of dry type transformer

Abstract

The invention discloses a radiating module of a dry type transformer. Axial fans are used for replacing original cross-flow cooling fans. The radiating module is characterized by comprising a rectangular stand and three sets of axial fans which are arranged in the stand, wherein the motor axle center of each fan is parallel to the coil axle center of the transformer; the power wire connection endof each fan is connected to a bus interface in parallel, and the bus interface is arranged on a side face of the stand in the height and width direction; ventilation holes which correspond to air outlets of each axial fan is arranged on the top surface of the stand in a hollow mode; and the side of the stand in the height and width direction is provided with a first connecting part used for fixedly connecting the stand to a supporting table of the transformer. After the design scheme of the invention is put into use, the cooling effect of the radiating module to the dry type transformer can be improved, and meanwhile, the invention has the advantages of high fan operation balance, low noise, high operation reliability of the radiating module, convenient wire connection, easy position and height adjustment, firm and beautiful structure, easy maintenance and quick recovery and use.

Description

technical field [0001] The invention relates to a heat dissipation module, in particular to a heat dissipation module of a dry-type transformer, which is used for cooling the coil winding of the dry-type transformer. Background technique [0002] Dry-type transformers generate a lot of heat during normal operation, which needs to be dissipated as soon as possible. At present, the heat dissipation of this kind of transformer is air-cooled, that is, the fan is used to blow air to achieve the purpose of heat dissipation. Most of the existing dry-type transformer heat dissipation fans use ordinary induced draft fans and a volute-shaped fan casing, the side of which is an axial air inlet, and the tangential direction of the casing has an exhaust outlet, and a plate is installed inside the casing. Shaped blades are connected to the motor shaft, and the blade bearings are supported on the housing. This kind of heat dissipation fan is very noisy, vibrates violently during operation,...

AI Technical Summary

Problems solved by technology

[0008] Ⅳ. Wiring method: The cross-flow fan has a large volume, and is usually fixed with a frame before wiring. At the same time, its terminal row is exposed, and the wiring path is uneven, so it is difficult to tidy up the wiring from the appearance.

If the electrical control unit of the fan needs to be wired by the user, the possibility of wrong connection is often easy to occur

[0009] Ⅴ. Position adjustment: When installed on transformers of different specifications, the cross-flow fan needs special consideration to adjust the relative position between the fan body and the winding, so that the airflow can blow in at the best angle; but when encountering a transformer with a small capacity, the fan When the installation space is insufficient, it is necessary to increase the height of the transformer, resulting in an increase in material costs and a waste of space for the height of the transformer

[0010] VI. Structural firmness: The casing of the cross-flow fan generally has no special load-bearing design. During assembly and use, it is often easily deformed by stepping on it, and sometimes even the fan blade cannot rotate.

[0011] VII. Since the production of cross-flow fans is not common, and the versatility of different specifications is poor, once the fan fails, it is not easy to replace the product of the same specification immediately, and it is difficult to maintain

[0012] Based on the above description of the structural characteristics of the cross-flow fan and the defects in the seven aspects of its application, it can be seen that the cross-flow cooling fan is generally used as the heat dissipation device of the dry-type transformer in the prior art, and there are many inconveniences and hidden dangers to safe operation.

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