CN204167082U

CN204167082U - A kind of transformer casing

Info

Publication number: CN204167082U
Application number: CN201420629360.3U
Authority: CN
Inventors: 朱佳瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-10-29
Filing date: 2014-10-29
Publication date: 2015-02-18
Anticipated expiration: 2024-10-29

Abstract

The utility model devises a kind of inner equally smooth with common enclosure, stays the transformer casing of some grooves in housing exterior.Instrument transformer inner core is placed in this shell and pours into epoxy, after epoxy packages completes, shell can be divided into several parts of removals, is formed actually to encapsulate without shell.There is cost low, the feature of easily producing.

Description

A kind of transformer casing

Technical field

The utility model relates to a kind of voltage current transformer, particularly a kind of voltage current transformer shell.

Background technology

The voltage current transformer adopted in the market, generally adopting has shell to encapsulate, but shell all will occupy certain volume, the instrument transformer little to volume requirement, can only adopt reduction enclosure volume, and the problem brought is inner core dress shell difficulty, dress shell process may be damaged inner core and increase the man-hour of dress shell, epoxy sealing difficulty bubble many impacts withstand voltage properties, sheathing material requires environmental protection flame retardant, and material cost is high.

Also useful without shell encapsulation, shortcoming is must mold, and die cost is high, also there is release agent and epoxy material price is high during epoxy sealing, the shortcoming that complicated operation man-hour is high.

Summary of the invention

Technical problem to be solved in the utility model is: provide a kind of cheap transformer casing, after transducer epoxy has encapsulated, conveniently can remove shell, makes instrument transformer volume little.

The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of transformer casing, and enclosure is equally smooth with common enclosure, and there are some grooves the outside of shell, and under the prerequisite not affecting encapsulating quality, groove depth is close to inner face.

The beneficial effects of the utility model are: adopt instrument transformer of the present utility model, and epoxy sealing rear casing is removed, and shell is not a part for finished product instrument transformer, and shell does not account for volume, and instrument transformer finished product can be miniaturized.Just require that enclosure is smooth just passable, sheathing material is without requirements such as fire-retardant environment friendly heat resistants, and sheathing material cost is low.Housing exterior removes solution groove, after curable epoxide, conveniently remove solution along groove, removes solution cost low.Curable epoxide rear casing is removed, and can meet under the small-sized prerequisite of instrument transformer finished product, and it is as far as possible large that shell can design, and bring dress shell side just, rate of finished products is high, and epoxy sealing is easy, and the good bubble-free of quality, product is resistance to be pressed.With compared with shell packaging technology, do not need the epoxy with requiring without shell encapsulation, just passable with common epoxy, epoxy cost is low; Do not need complicated die, reduce die cost; Do not need release agent, filling epoxy technique is simple, and filling cost of labor is low.That is, instrument transformer volume can be reduced, reduce cost simultaneously.

accompanying drawing explanation

Fig. 1 is the groove schematic diagram of the utility model square shell;

Fig. 2 is the degree of depth schematic diagram of the groove of the utility model square shell;

Fig. 3 is the groove schematic diagram of the utility model cylinder blanket;

Fig. 4 is the degree of depth schematic diagram of the groove of the utility model cylinder blanket.

embodiment

Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.

embodiment 1

Inner core is loaded in the square instrument transformer described in Fig. 1 and 2, after epoxy sealing has solidified, by suitable dynamics, the instruments such as blade is scratched along groove, tear the logical small pieces passing through shell along groove, shell is divided into 2 half.Small pieces bottom other 2 faces can being connected to equally are torn, and shell is divided into 4 parts.Now can be easy to 4 especially shell tear respectively, leave the uncanned instrument transformer encapsulated by epoxy, complete this enforcement.

embodiment 2

In the cylindrical instrument transformer described in inner core load map 3 and 4, after epoxy sealing has solidified, by suitable dynamics, the instruments such as blade are scratched along groove, tear the logical small pieces passing through shell along groove, shell is divided into 2 half.Now can be easy to 2 especially shell tear respectively, leave the uncanned instrument transformer encapsulated by epoxy, complete this enforcement.

Claims

1. a transformer casing, enclosure is equally smooth with common enclosure, it is characterized in that: there are some grooves the outside of shell, and under the prerequisite not affecting encapsulating quality, groove depth is close to inner face.

2. transformer casing according to claim 1, is characterized in that: shell is square shell, and housing exterior has parallel 2 grooves running through shell.

3. transformer casing according to claim 1, is characterized in that: shell is cylinder blanket, and housing exterior has parallel 2 grooves running through shell.