CN205542373U - Novel anti shielding mutual -inductor shell of three -phase - Google Patents

Abstract

The utility model provides a novel anti shielding mutual -inductor shell of three -phase, includes confined aluminium system shell, aluminium system shell is including the last face and lower face that correspond each other, it is equipped with three core hole upward all to correspond on face and the lower face, all be connected with the plastics stem stem between the core hole of per two upper and lower correspondences, amount to three plastics stem stems. The utility model provides a mutual -inductor shell adopts the aluminum product preparation, forms a confined box body, and the plastics stem stem is used for cup jointing built -in coil, with the coil protection in the box body, anti -electromagnetic interference ability that not only can effectual improvement mutual -inductor can also increase the casing intensity of mutual -inductor, the stem stem part still adopts plastics to make, can guarantee that normal operating current can not the conductively -closed.

Description

A kind of Three phase anti-shielding transformer casing

Technical field

This utility model relates to transformer field, particularly relates to a kind of Three phase anti-shielding transformer casing.

Background technology

Existing current transformer mostly is the hardware shell that mould of plastics makes, and internal coil is fixed in plastic core column, realizes the detection to external cable three-phase current by the coil being wound around.Owing to current transformer internal coil is not owing to having the protection of metal screen layer, it is highly prone to the interference of external electromagnetic and higher hamonic wave, causes current transformer superposition extracurrent, and cannot normally work or abnormal measurement error occurs.

Summary of the invention

The purpose of this utility model is to provide one can protect internal coil, not by external electromagnetic and the transformer casing of the interference of higher hamonic wave, solves the problem in background technology.

For achieving the above object, this utility model adopts the following technical scheme that

A kind of Three phase anti-shielding transformer casing, including the aluminium shell closed, described aluminium shell includes the most corresponding upper face and lower face, three core bore all it are correspondingly provided with on described upper face and lower face, it is respectively connected with plastic core column, three plastic core columns altogether between the core bore that described each two is corresponding up and down.

As preferably, described upper face and lower face are parallel, and the lower section of described upper face is the most parallel with the top of described lower face is provided with one piece of plastics lining board.

As preferably, described three plastic core columns are triangle arrangement.

Transformer casing in this utility model; employing aluminium makes; form a box body closed; plastic core column is for being socketed built-in coil; coil is protected in box body, is possible not only to effectively improve the anti-electromagnetic interference capability of transformer, additionally it is possible to increase the casing rigidity of transformer; stem portion still uses plastic production, it is ensured that normal operating current will not be shielded.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model embodiment.

Fig. 2 is the A-A face sectional view of Fig. 1.

Fig. 3 is the B-B face sectional view of Fig. 1.

Detailed description of the invention

Below in conjunction with Fig. 1 to Fig. 3, the technical solution of the utility model is described further, but is not limited to this explanation.

A kind of Three phase anti-shielding transformer casing, including the aluminium shell 1 closed, aluminium shell 1 includes mutual correspondence, be arranged in parallel upper face 2 and lower face 3, three core bore 4 in triangle arrangement all it are correspondingly provided with on upper face 2 and lower face 3, it is respectively connected with plastic core column 5 between the core bore 4 that each two is corresponding up and down, amounting to three plastic core columns 5, plastic core column 5 is outer is all socketed with coil 7.

Upper face 2 and lower face 3 are parallel, and the lower section of upper face 2 is the most parallel with the top of described lower face 3 is provided with one piece of plastics lining board 6.The fastness of plastics lining board 6 energy stiffened shell 1, protection coil 7, is allowed to not contact with aluminium shell 1, it is to avoid wear and tear and insulate simultaneously.

Transformer casing 1 in this utility model, can be effectively improved the intensity of transformer housing, increases aesthetic property, and can effectively improve the anti-electromagnetic interference capability of equipment, has good market prospect.

Claims (3)

1. a Three phase anti-shielding transformer casing, it is characterized in that, including the aluminium shell (1) closed, described aluminium shell (1) includes the most corresponding upper face (2) and lower face (3), three core bore (4) all it are correspondingly provided with on described upper face (2) and lower face (3), it is respectively connected with plastic core column (5), altogether three plastic core columns (5) between the core bore (4) that described each two is corresponding up and down.

2. a kind of Three phase anti-shielding transformer casing as claimed in claim 1, it is characterized in that, described upper face (2) and lower face (3) are parallel, and the lower section of described upper face (2) is the most parallel with the top of described lower face (3) is provided with one piece of plastics lining board (6).

3. a kind of Three phase anti-shielding transformer casing as claimed in claim 1 or 2, it is characterised in that described three plastic core columns (5) are in triangle arrangement.