CN2607648Y

CN2607648Y - Columnar transformer

Info

Publication number: CN2607648Y
Application number: CN 03233116
Authority: CN
Inventors: 赵明富; 李太福; 李山; 罗松; 唐天明
Original assignee: Chongqing Institute of Technology
Current assignee: Chongqing Institute of Technology
Priority date: 2003-01-29
Filing date: 2003-01-29
Publication date: 2004-03-24
Anticipated expiration: 2013-01-29

Abstract

The utility model relates to a columniform transformer, consists of a columniform iron core disposed inside a cylindrical housing, a primary coil, a secondary coil, an upper supporting plate and a lower supporting plate disposed on two sides of the columniform iron core, and is characterized in that the columniform iron core is a rolling structure composed of a bolt-wound yoke iron of the columniform iron core, end yoke irons winding at two sides of the yoke iron of the columniform iron core and outer yoke irons winding on the end yoke irons. The primary coil and the secondary coil are wrapped between the core yoke iron and the outer yoke irons. The utility model not only has a compact and small volume, but also distributes the magnetic field loops inside the columniform iron core, thereby reducing the magnetic leakage, lowering the temperature and heat loss and increasing the efficiency and also having the advantages of a simple manufacturing technique, a lower cost and a convenient installment because the silicon steel sheet is wound and made into the columniform iron core,and the primary coil and the secondary coil are wound on the yoke iron of the columniform iron core in an alternating or a stratifying way.

Description

The column type transformer

Technical field

The utility model relates to small-sized single phase industrial frequence transformer, is specifically related to a kind of column type transformer.

Technical background

At present, use more small-sized single phase industrial frequence transformer to mainly contain E type and C type.But all there is a common shortcoming, air gap and leakage field are promptly all arranged, cause transformer temperature rise, power consumption big.In order to overcome the air gap shortcoming that E type and C type transformer exist, R type transformer the nineties appearred in twentieth century.R type volume of transformer is little, no-load current is little, temperature rise is low, power consumption is also low.But its iron core processing is difficulty comparatively, needs special-purpose cutting machine, and coil winding technology is complicated, thereby cost is than the cost height of E type and C type transformer.And the bigger leakage field of same existence, limited the raising of efficient.

Summary of the invention

The purpose of this utility model provides a kind of column type transformer, and its compact conformation, volume are little, and no-load current is little, temperature rise is low, energy consumption is low, efficient is high, and manufacturing process is simple, cost is low, easy for installation.

Column type transformer described in the utility model, comprise column type iron core, primary coil, the secondary coil that is contained in the barrel shrond, bottom plate and the top board that is located at column type iron core two ends, it is characterized in that the column type iron core is the takeup type structure, by the stem stem yoke on bolt, around the end yoke at stem stem yoke two ends, around the end yoke and on outer yoke form, primary coil and secondary coil are enclosed between stem stem yoke and outer yoke.Make the column type iron core owing to adopt silicon steel sheet to reel, primary coil and secondary coil layering or alternate on the stem stem yoke of column type iron core, compact conformation not only, volume is little, and the field circuit overwhelming majority all is distributed within the column type iron core, thereby having reduced leakage field, temperature rise is low, thermal losses is low, efficient is high.In addition, manufacturing process is simple, cost is low, and is easy for installation.

Described column type transformer is provided with two pairs of posts on top board, primary coil coiling two ends are connected with a pairs of posts, and secondary coil coiling two ends are connected with another pairs of posts.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a Distribution of Magnetic Field schematic diagram of the present utility model.

Fig. 3 is a coiling technical process schematic diagram of the present utility model.

Embodiment

Referring to Fig. 3 (a), bolt 6 is passed top board 5, use silicon steel sheet at bolt 6 coiling stem stem yokes 7; Referring to Fig. 3 (b), alternate coiling primary coil 2 and secondary coil 3 at the middle part of stem stem yoke 7, the two ends of primary coil 2 and secondary coil 3 put after the high strength insulating sleeve draws from the end, and mass-impregnated insulation is handled; Referring to Fig. 3 (c), use silicon steel sheet at the two ends of stem stem yoke 7 difference coiling end yoke 8 and 9; Referring to Fig. 3 (d), the silicon steel sheet of using width and stem stem yoke 7 equal in length carries out varnished insulation and handles behind the outer yoke 10 of coiling on the end yoke 8 and 9, promptly forms column type iron core 1, and barrel shrond 15 is enclosed within the outside of column type iron core 1; At last, bottom plate 4 is enclosed within on the bolt 6, uses fixed by nut, and the coiling two ends of grade coil 2 are connected with 12 with binding post 11 on the top board 5, the coiling two ends of secondary coil 3 are connected with 14 with binding post 13 on the top board 5, promptly obtain column type transformer shown in Figure 1.

Claims

1, column type transformer, comprise the column type iron core (1), primary coil (2), secondary coil (3), the bottom plate (4) that is located at column type iron core (1) two ends and the top board (5) that are contained in the barrel shrond (15), it is characterized in that column type iron core (1) is the takeup type structure, be made up of the stem stem yoke (7) on bolt (6), outer yoke (10) around the end yoke (8) at stem stem yoke two ends and (9), on end yoke (8) and (9), primary coil (2) and secondary coil (3) are enclosed between stem stem yoke (7) and outer yoke (10).

2, column type transformer according to claim 1, its feature also are to be provided with the binding post (11) and (12) and the binding post (13) and (14) that are connected with secondary coil (3) coiling two ends that is connected with primary coil (2) coiling two ends on top board (5).