CS200345B3 - Transformer for resistance welding and heating - Google Patents

Description

CZECHOSLOVAKCASOCIALISTREPUBLIC (19)

DESCRIPTION OF THE INVENTION

TO CERTIFICATE 200 345 (11) (Bl)

(61) Author's certificate is dependent on author's No. 194 988 {23) Exhibition priority (22) Registered 1® 77 (2I) PV 6760-77 (Sl) Int. CI.3 Η Ol 31 31 / 06Η Ol P 27/24

OFFICE4? ROBLE AND DISCOVERY (· «)) Published 31 12 79 (45) Published 30 11 83 (75)

Author of the invention VASILEV LJUDMIL ing., MACKOVIČ J02EP ing., KOVJÍČIK VLADIMÍR,

SENEC

20H0R

BRATISLAVA

Transformer for resistance welding e heating

The invention relates to a further improvement of the transformer especially for resistance welding and heating according to the basic MS. Certificate No. 194 988

The subject of MS. certificate. No. 194 988 is a transformer for resistance welding and heating. Its coils have a rectangular shape, formed by two side sections and two end sections, and are assembled into an alternating winding having a circular cross section on the side sections. A magnetic circuit is located around the side sections of the winding, which consists of rings wound from a strip of transformer sheet. The essence of the transformer is that at least one layer of the insulating strip is placed on the outer layer of the side winding sections and the sidewalls of the winding are encircled by a ring! wound from a strip of transformer sheet. the winding ends are provided with a layer of curable resin with filler and / or fiberglass, the distance between the faces of the rings and the inner surfaces of the winding ends of the winding. equal to the thickness of the filler resin layer of the filler and / or the fiberglass surrounding the winding sections.

Oalěie zdokonalenle MS. No. 194988 discloses that the edge winding coils of the input winding are convexly shaped outwardly into the shape of the described circle around the winding aperture, and the winding threads of the output winding coiled with the edge thatched coils consist of an inner part and an outer part folded together. The exterior panels, along the thread, have an outwardly shaped 200 345 200 345 2 of the respective surface to the inner side of the threads convexly outwardly formed of the edge bead coils of the input winding. The inner ducts with the outer lengths and threads of the lead wave lead are welded together on the outer periphery and the inner circumference, while the inlet and outlet of the cooling water are incorporated into the resulting interleaved inner lip and the outer thread length of the lead wave lead.

By crimping according to the invention, it achieves a sticky filling of the circular cross-section, thereby saving on the transformer plate and the medium, thereby increasing the technical parameter of the transformer, thereby reducing its weight, size and dimensions. Dooiell is saving wedges and eliminating the costly reflow of tubes and the threads of the tubular output solder. Cooling efficiency of the windings of the tronsformers also increased, as the water is in the immediate contact with the material of the output waveform and the cooling channel is a flat oval.

In the accompanying drawings, an exemplary embodiment of a transformer according to the invention is shown. Figure 1 shows a partial cross-sectional view of a transformer according to the invention. FIG. 2 shows a partial sectional view of a transformer under support according to the invention. Figure 3 is a cross-sectional view of a transformer side winding according to the invention;

The transformer has a coil 1 and a coil outlet 2 of rectangular shape, which are assembled into the coiled winding 2. The coil 2 consists of two side sections 2 and two end sections 2, with the terminals 6 extending from one end section 2. At least one layer of insulating strip 8 is placed on the outer outer layer 7. At least one layer of the insulating strip 8 is placed on the outer outer layer 7. The side sections 6 of the sheet 2 and the sheets 2 of the sheet 2 are provided with a layer. 10, which is made of hardened yellow-yellow filler or fiberglass. The winding 2 of the transformer according to the invention consists of two edge rolls of the two coil coils 25 of the two inner bead plates 35 of the inlet bead 1 and the two threads 26 of the bead of the outlet bead 2. and the threads 26 of the exit waveguide 2, which abut with the edge thatch slices 25, comprise an inner shell 27 and an outer shell 28 mutually axially folded. The exterior panels 28 are threaded outwardly by the thread-shaped surface 29 to the inner side 30 of the threads 31 convexly outwardly of the outwardly shaped edge coils 25 of the input winding 1. The inner lengths 27a of the outer threads 26 of the output waveform 2 are mutually interconnected. on the outer circumference 32 and the inner circumference 33 connected by welding. Into the resulting space 34 between the inner part 27 and the outer length 28 of the threads 26 of the outlet winding 2 there is a supply of hot water outlet.

Claims (1)

OBJECT OF THE INVENTION Transformer especially for resistance welding and heating according to MS. No. 194988, in which the coils of the input winding are located at the edges and in the middle and are made in thatched manner, and the threads of the output winding coil are located between the bores of the input winding, characterized in that the edge thatched coils are shaped externally in the shape of a circumscribed circle (17) around the winding cross-section (3) and the windings (26) of the coil of the output winding (2) which contact the edge thatch sluts (25) consist of an inner part (27); the outer part (28) axially folded together, and the outer parts (28) being threaded (26) externally provided with a notch (29) in the shape of the respective surface to the inner side (30) of the threads (31) convexly outwardly shaped edge thatch lugs (25) (1) and the inner parts (27) and the outer parts (28) of the threads (26) of the coil of the output winding (2) are mutually on the outer and an internal circuit (33) connected by welding, the cooling water inlet and outlet being integrated into the space (34) formed between the inner part (27) and the outer part (28) of the winding coil (2).