DE8526034U1 - Toroidal transformer - Google Patents

Description

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Hubertusstrasse 2

3OOO Hanover 1

Telephone (0511) 66 30 71 / ^ 2

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Kabel Bipat Hanover
Fax / Telecopier: (0511) 663072

Qy Authorized Representative at the European Patent Office

Professional Representative before the European Patent Office Mandataire agree pres! 'Office Europeen des Brevets

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Date September 11, 1985

Date

Toroidal transformer

The innovation relates to a toroidal core transformer, consisting of a toroidal core and primary and secondary windings wound on it.

According to the innovation, the toroidal core transformer is provided with an assembly and protective shell that covers one end of the transformer covered and extends on the periphery of the transformer at least up to the height that corresponds to the creepage distance and wherein the protective shell has a hollow mandrel in the center, which protrudes into the middle of the toroidal core and is encapsulated with it here is.

The innovation is now based on an implementation example, which is shown in the drawing, explained in more detail.

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j postal check; Hannover 285656 * 306 (BLZ 250 100 30) ■ Öbjijme ^ jljanlt ^ aprioveT 334 & OB3 (BLZ 2604ÖÖ66) Deutsche Bank Hannover: 22/42030 (BLZ 25070070)

Show it:

Fig. I shows a cross section through the neüerigsgemäße

Toroidal transformer and
FIG. 2 shows a plan view of the ring transformer according to FIG. 1.

The toroidal core 1 is surrounded by primary and secondary windings 2. The entire transformer is located in an assembly and protective shell 3 made of injection molded plastic. The protective shell 3 covers an end face of the transformer, and its edge 4 has on the The periphery of the transformer must be at least as high as the creepage distance specified in the various safety regulations. The protective shell has a centrally arranged hollow mandrel 5 which protrudes into the center hole of the transformer. The J

Protective shell 3 is attached to the transformer by an adhesive 6, |

f about polyurethane resin. The fastening of the transformer |

is carried out on a base by means of a through the central mandrel

I led screw. Housing 3 and mandrel 5 isolate the transformer

of pad and screw.

The protective shell 3 can also be made of aluminum by anodizing the surface for the necessary insulation is taken care of. This has the advantage of good heat conduction. Since the protective shell 3 only covers a small part of the windings good cooling guaranteed by convection.

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Claims (3)

t · η · It roe * I 1 · · · ·. . ■ I IB · t «f ' ■ * 3 * ■ · * Claim to protection Toroidal transformer, consisting of a toroidal core and wound on it Primary and secondary windings, characterized by a mounting and protective shell (3) that covers one end of the transformer covered and at the periphery of the transformer at least up to the height that corresponds to the creepage distance and the one has a hollow mandrel located in the center, which protrudes into the center of the toroidal core and is potted with it here. »· · 4« * dd ti * · * · * «*><WITH t t it