CN207097669U

CN207097669U - Transformer core-lamination stack platform

Info

Publication number: CN207097669U
Application number: CN201720719249.7U
Authority: CN
Inventors: 田广荣
Original assignee: CHANGSHA CHANGYUAN TRANSFORMER Co Ltd
Current assignee: CHANGSHA CHANGYUAN TRANSFORMER Co Ltd
Priority date: 2017-06-20
Filing date: 2017-06-20
Publication date: 2018-03-13
Anticipated expiration: 2027-06-20

Abstract

A kind of transformer core-lamination stack platform, including closed assembly platform, fixed a plurality of parallel clamping channel-section steel is installed on closed assembly platform, the iron core center hole locating rod corresponding with iron core center hole is mounted with the clamping channel-section steel of two avris, the more iron core inner side edge locating rods corresponding with iron core inner side edge are mounted with closed assembly platform.The utility model reduce because fold an iron grip increased added losses and therefore caused by noise, have it is simple in construction, easy to operate, maintenance simply, energy-saving and environmental protection the characteristics of.

Description

Transformer core-lamination stack platform

Technical field

The utility model belongs to transformer technology field, and in particular to a kind of transformer core-lamination stack platform of improvement, it is special Assembling of the safety pin to small-sized electrical category transformer, loss is reduced, improve efficiency.

Background technology

Most of transformer core-lamination stack platforms in the market, are designed both for large-scale power transformer, right For small air-immersed transformer, because small product size is small, large-scale closed assembly platform does not apply to, particularly a lot of customizations it is nonstandard Product.Traditional stacking technique is after transformer core is all folded, then overturns setting, and iron is gripped in dismounting, suit coil, this Kind mode efficiency is low, and briefly dismounting twice, causes added losses to increase because of upper iron, and the magnetic hysteresis retractility that iron is gripped, which is deteriorated, also can Cause the increase of transformer noise, low production efficiency.

The content of the invention

For the deficiencies in the prior art and limitation, the utility model proposes a kind of transformer core of improvement to fold Assembling platform, iron is not gripped on closed assembly, reduce because fold an iron grip increased added losses with therefore caused by noise, there is structure Simply, it is easy to operate, safeguard simple, energy-conservation, it is environmentally friendly the characteristics of.

The technical solution adopted in the utility model is：A kind of transformer core-lamination stack platform, including closed assembly platform, in closed assembly Fixed a plurality of parallel clamping channel-section steel is installed on platform, is mounted with the clamping channel-section steel of two avris and iron core center hole Corresponding iron core center hole locating rod, is mounted with closed assembly platform in the more iron cores corresponding with iron core inner side edge Side locating rod.

In above-mentioned technical proposal, the iron core column of closed assembly is open-type iron core column on the closed assembly platform.

Operation principle：

Traditional core type transformer is needed first all to fold iron core, overturn before suit coil, then upper iron of dismantling is gripped, and is covered Install coil, because iron core is the magnetic excitation circuit of transformer, the performance quality of iron core will directly affect the no-load performance of transformer, institute So that the requirement of iron core work in-process is handled with care, it is impossible to destroys surface insulation layer, iron core overlapping is a very crucial step, how to be subtracted Stress concentration caused by during few lamination, reduce iron core added losses caused by mechanical damage, and major transformer manufacturers The theme of technical study.The utility model is directed to this starting point, devises the iron core overlapping platform gripped without iron on closed assembly, leads to Crossing locating rod makes iron core once fold, and iron core can be directly set with after upset, not only reduces added losses, and improves production Efficiency.

The beneficial effects of the utility model：

After the utility model improvement, transformer core-lamination stack efficiency is improved, reduces transformer core because outside by machinery Power acts on increased open circuit loss；The iron core field performance of transformer is improved, reduces noise；With same type transformer phase Than open circuit loss can reduce 10-20%, there is energy-conserving and environment-protective.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is Fig. 1 side view；

Fig. 3 is the iron core column structural representation using the utility model closed assembly；

Fig. 4 is Fig. 3 side view.

Reference：

1-closed assembly platform, 2-clamping channel-section steel, 3-iron core center hole locating rod, 4-iron core inner side edge locating rod, 5-wear Heart hole, 6-open-type iron core column.

Embodiment：

Referring to Fig. 1 ~ Fig. 4, transformer core-lamination stack platform of the present utility model, including closed assembly platform, on closed assembly platform The fixed a plurality of parallel clamping channel-section steel of installation, is mounted with corresponding with iron core center hole on the clamping channel-section steel of two avris Iron core center hole locating rod, the more iron core inner side edges corresponding with iron core inner side edge are mounted with closed assembly platform and are determined Position bar；The iron core column of closed assembly is open-type iron core column on the closed assembly platform.

The same model 160KVA transformers assembled using transformer core-lamination stack platform of the present utility model, carry out empty Experiment is carried, test data shows：Open circuit loss reduces about 10%, no-load current reduces 15%, lower noise 2dB (A), leads to Cross using improvement the utility model closed assembly platform, in the case where design parameter is constant, reduce human factor and it is mechanical because Element infringement to caused by silicon steel sheet, improves transformer performance, and playing a part of energy-conserving and environment-protective reduces energy consumption.

Referring to Fig. 1, Fig. 2, iron core center hole locating rod and iron core inner side edge locating rod and closed assembly platform are fitted close, and are passed through More locating rods positioning iron core center holes and iron core column, ensure that the perpendicularity of iron core, butt strip when avoiding lamination, change more than It is good, can grip a folded face iron less, reduce grip, correct because folding iron, dismount caused by mechanical damage, in the immovable feelings of design parameter Under condition, open circuit loss and no-load current are reduced, the effect with energy-saving and noise-reducing.

Foundation transformer in the process of running encourage by primary side energization, the principle of iron core excitation, secondary side generation voltage, iron core Excitation loss must be had during magnetic, is commonly called as open circuit loss, open circuit loss is on the one hand relevant with the material of iron core, is commonly called as unit Kilogram loss；On the other hand it is exactly relevant with iron core process, silicon steel sheet surface can apply one layer of dielectric film, it is therefore an objective to be During guarantee iron core excitation, mutual insulating between piece and piece, eddy-current loss caused by reducing excitation is a part for open circuit loss； In iron core process, the interface of silicon steel sheet section all can be by different degrees of destruction, therefore to reduce shearing as far as possible The number of processing, in folded iron core, also to handle with care, to reduce the damage to silicon steel sheet, traditional core type transformer lamination Need completely to fold iron core, correct and then erect and, upper iron of dismantling is gripped, suit coil, therefore grips upper iron generation more one Secondary closed assembly, school shape are destroyed, and cause supplementary transformer loss to increase, and no-load current increase, silicon steel sheet magnetic hysteresis retractility is deteriorated, made an uproar Sound is big.After the utility model lamination frock after improvement, once iron core can be folded, as shown in Figure 3, Figure 4, iron Core, which erects, to be come, and direct suit coil, by the improvement to iron core overlapping, is reached energy-saving and noise-reducing, is put forward efficient purpose.

Claims

A kind of 1. transformer core-lamination stack platform, it is characterised in that：Including closed assembly platform, it is a plurality of that fixation is installed on closed assembly platform Parallel clamping channel-section steel, the iron core center hole corresponding with iron core center hole is mounted with the clamping channel-section steel of two avris Locating rod, the more iron core inner side edge locating rods corresponding with iron core inner side edge are mounted with closed assembly platform.
2. transformer core-lamination stack platform according to claim 1, it is characterised in that：The iron of closed assembly on the closed assembly platform Stem is open-type iron core column.