CN2150617Y

CN2150617Y - Muiltiple-air-duct air self-cooling transformer

Info

Publication number: CN2150617Y
Application number: CN 93238184
Authority: CN
Inventors: 吴加林
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-16
Filing date: 1993-02-16
Publication date: 1993-12-22
Anticipated expiration: 2003-02-16

Abstract

The utility model relates to an air self-cooling type transformer. The air self-cooling type transformer is mainly composed of a plurality of iron cores which are arranged at intervals, and coil windings which are wound on the iron cores. The iron cores which are arranged in a separating mode are used to enlarge the contact area of the iron cores, coils, and air; meanwhile, an air current channel is formed, which is favorable to the flow of the air, and heat is timely carried away. The heat dissipating capacity of the air self-cooling type transformer is enhanced, and thereby, the working frequency of the air self-cooling type transformer is expanded. The utility model has the advantages of simple structure, and simple and available structure. The air self-cooling type transformer is especially and suitably used for manufacturing a medium frequency transformer which accepts ferrite as an iron core material.

Description

Muiltiple-air-duct air self-cooling transformer

The utility model relates to a kind of naturally air-cooled transformer.

Existing naturally air-cooled transformer constitutes by an integral type iron core and winding coil windings thereon.This integral type iron core increases magnetoelectricity in operating frequency and changes when violent because its area of dissipation is limited, and the heat that its iron core and coil produce is difficult for distributing, thereby can influence the operate as normal of transformer, even burns.Especially those make the intermediate frequency transformer of core material with ferrite, several secondary ferrites of normal employing increase its permeability near the version of combination, the deficiency that this mode is brought is that the work temperature rise of its iron core is big and be difficult for distributing, very easily cause gathering and breaking through ferritic temperature extremes (being Curie point) of heat, cause ferritic collapse and whole transformer is scrapped.

The purpose of this utility model is to have added the above-mentioned deficiency that overcomes prior art and provide a kind of radiating efficiency high multiple duct naturally air-cooled transformer.

The multiple duct naturally air-cooled transformer of realizing the purpose of this utility model is made of iron core and the coil windings that is wrapped on the iron core, and described iron core is at least two pairs, arrangement separated by a distance between pair and the pair.Both the secondary integral type iron core of original list had been divided into the secondary iron core of number, and arrangement all separated by a distance between every secondary iron core, coil windings is still twined through each iron core by original mode order, do not influence the trend of the magnetic line of force, under same and permeability condition, this many core structures have increased the contact area of iron core and air, both increased the area of dissipation of iron core, the air channel that forms between the iron core also helps flowing of air simultaneously, is easy to heat is taken away, and its radiating efficiency is improved greatly.Especially can connect at some and help blower fan and blow cold wind and help cold occasion, with the air channel between the cold wind guiding iron core of blower fan, radiating efficiency still can further improve.

The utility model is simple in structure, making is easy, only original single integral type iron core need be replaced with several pairs iron core arranged apart by it, reduced the thickness of single secondary iron core, and the contact area of its iron core and coil and air is all strengthened, air duct also is improved, its radiating effect is greatly taken on a new look, and under identical permeability (equal capacity) prerequisite, its operating frequency still can further be expanded.Be particularly suitable for making with the ferrite is the intermediate frequency transformer of core material.

Below in conjunction with embodiment and accompanying drawing the utility model is described further.

Fig. 1 has provided structural representation of the present utility model

As shown in Figure 1, in the present embodiment, the iron core 1 and 2 that iron core is arranged at a certain distance by two parafacies constitutes jointly, can select for use Ferrite Material to make; Coil windings 3 is continued to use the prior art mode and is wrapped on the iron core, then forms air channel 4 between two iron cores and coil windings.The temperature rise of iron core and coil windings then can be distributed in air through its each surface that contacts with air during work.Air channel 4 has not only enlarged the contact area of iron core and coil windings and air, also is beneficial to the circulation of air simultaneously, is convenient to the heat of iron core and coil windings is taken away.

Claims

1, multiple duct naturally air-cooled transformer is made of iron core and the coil windings that is wrapped on the iron core, it is characterized in that described iron core is at least two pairs, arrangement separated by a distance between pair and the pair.