CN203617089U - Transformer with arc protection retainer - Google Patents

Abstract

The utility model discloses a transformer with an arc protection retainer. The transformer with an arc protection retainer comprises an iron core and a coil wound on the iron core, wherein the pedestal of a winding rack is positioned under the iron core, an insulating rubber tape is wrapped on the coil, the coil forms multiple coil leads from the winding rack, and an insulating retainer is arranged on one side, close to the leads of the coil, of the outer wall of the iron core. The insulating retainer with the U-shaped cross section is wrapped on the outer wall of the iron core and is positioned between the iron core and the pedestal of the winding rack. According to the transformer with the arc protection retainer, the insulating retainer can prevent arc from being generated between the iron core and the leads of the coil in the case of high voltage.

Description

With the transformer of arc protection catch

Technical field

The utility model relates to Telecommunication Transformers and power transformer is manufactured field, particularly a kind of transformer with arc protection catch.

Background technology

As shown in Fig. 1 ~ 2, the structure of transformer is made up of members such as drum stand, coil, iron core, insulating tape and coil pin conventionally, conventionally iron core and coil pin are for exposing conductor and close together, under normal circumstances, because coil is coated with insulating tape, iron core is normally uncharged, but inventor finds, in high-tension situation, iron core and coil pin very easily produce electric arc, as shown in Figure 2.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of transformer with arc protection catch, can completely cut off the electric arc producing between iron core and coil pin.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of transformer with arc protection catch, comprise iron core, be wound on the coil of iron core, the base of drum stand is positioned at the below of iron core, coil is coated with insulating tape, and coil is drawn many coil pin from drum stand, is provided with insulation catch at iron core outer wall near a side of coil pin.

Described insulation catch cross section becomes " U " font to be coated on iron core outer wall, and between iron core and the base of drum stand.

A kind of transformer with arc protection catch that the utility model provides, by the insulation catch arranging, can be blocked in high-tension situation the electric arc producing between iron core and coil pin, the fail safe that has further improved the electric equipment that adopts this transformer.Further improve and be, insulation catch adopts the design of " U " font, just in time be coated on end face and the upper and lower surface of iron core and be stuck, insulation effect is better, and be convenient to fix, form an insulating coating at iron core near the side of coil pin, make it between coil pin and iron core, reach the object of isolated electric arc.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail:

Fig. 1 is the perspective view of common transformer.

Fig. 2 is the schematic side view of common transformer, has shown the easy electric arc that produces between iron core and coil pin in figure.

Fig. 3 is stereochemical structure explosive view of the present utility model.

Fig. 4 is side-looking structure explosive view of the present utility model.

Fig. 5 is three-dimensional view of the present utility model.

In figure: coil 1, insulating tape 2, iron core 3, drum stand 4, coil pin 5, insulation catch 6.

Embodiment

In Fig. 3 ~ 5, a kind of transformer with arc protection catch, comprise iron core 3, be wound on the coil 1 of iron core 3, the base of drum stand 4 is positioned at the below of iron core 3, and the base of drum stand 4 is positioned at the below of iron core 3, and coil 1 is coated with insulating tape 2, coil 1 is drawn many coil pin 5 from drum stand 4, is provided with insulation catch 6 at iron core 3 outer walls near a side of coil pin 5.The power conversion mode of transformer is electricity-magnetic-electricity.Under normal circumstances, iron core 3 is uncharged, but be subject to the impact of dust and humidity, or in high-tension situation, inventor finds can produce electric arc between iron core 3 and coil pin 5, this may cause other element: burning of for example ic chip, also can reduce the useful life of transformer self.Adopt insulation catch 6 effectively to overcome this defect, avoid producing electric arc between iron core 3 and coil pin 5, protected the safety of electric component.

The scheme of optimizing is as in Fig. 3 ~ 5, and described insulation catch 6 cross sections become " U " font to be coated on iron core 3 outer walls, and between iron core 3 and the base of drum stand 4.Insulation catch adopts the design of " U " font, is just in time coated on end face and the upper and lower surface of iron core and is stuck, and insulation effect is better, and is convenient to fix.

Claims (2)

1. the transformer with arc protection catch, comprise iron core (3), be wound on the coil (1) of iron core (3), the base of drum stand (4) is positioned at the below of iron core (3), coil (1) is coated with insulating tape (2), coil (1) is drawn many coil pin (5) from drum stand (4), it is characterized in that: be provided with insulation catch (6) at iron core (3) outer wall near a side of coil pin (5).

2. a kind of transformer with arc protection catch according to claim 1, is characterized in that: described insulation catch (6) cross section becomes " U " font to be coated on iron core (3) outer wall, and is positioned between iron core (3) and the base of drum stand (4).

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