CN202258755U

CN202258755U - Electromagnetic-type voltage-transformer body and transformer thereof

Info

Publication number: CN202258755U
Application number: CN2011204174095U
Authority: CN
Inventors: 韩啸啸
Original assignee: TRENCH CHINA MWB (SHANGHAI) CO Ltd
Current assignee: TRENCH CHINA MWB (SHANGHAI) CO Ltd
Priority date: 2011-10-27
Filing date: 2011-10-27
Publication date: 2012-05-30
Anticipated expiration: 2021-10-27

Abstract

The utility model relates to an electromagnetic-type voltage-transformer body, which comprises two iron cores (10a and 10b) and a winding (20). The two iron cores (10a and 10b) are arranged on the same plane and are mutually adjacent. The winding (20) is simultaneously wound on mutually-adjacent iron-core columns (12a and 12b) of the two iron cores (10a and 10b). The utility model also relates to an electromagnetic-type voltage transformer using the transformer body. Through the utility model, under the condition that the effective cross-sectional areas of the iron cores are identical, the weight of the iron cores can be lightened, and the cost is saved.

Description

The device body and the instrument transformer thereof of electromagnetic potential transformer

Technical field

The utility model relates to a kind of device body of instrument transformer, relates in particular to a kind of device body that is used for electromagnetic potential transformer.The utility model also relates to a kind of electromagnetic potential transformer that uses this device body.

Background technology

The device body of existing electromagnetic potential transformer is general to adopt a ring-type laminated core 50 as shown in Figure 1, and has the winding 60 on the core limb that is wrapped in iron core 50.Core limb is long-pending perpendicular to the effective cross section that the cross-sectional area of the magnetic line of force (chain-dotted line among the figure) is this laminated core 50.Adopt the untanking mass of this iron core big, cost is high.

The utility model content

The purpose of the utility model provides a kind of device body of electromagnetic potential transformer, under the long-pending identical condition in effective cross section unshakable in one's determination, can alleviate weight unshakable in one's determination, and saves cost.

Another purpose of the utility model provides a kind of electromagnetic potential transformer, and it has above-mentioned device body, can alleviate weight unshakable in one's determination equally, and saves cost.

The device body of this electromagnetic potential transformer that the utility model provides, it comprises two iron cores and a winding.Two unshakable in one's determination is provided with at grade and adjacent one another are.Winding is wound on two iron cores, two core limbs adjacent one another are simultaneously.This structure can alleviate weight unshakable in one's determination, and saves cost.

In a kind of exemplary embodiment of the device body of electromagnetic potential transformer, iron core is a wound core.Adopt said structure can further reduce iron core weight.

In a kind of exemplary embodiment of the device body of electromagnetic potential transformer, offer air gap on the iron core, to adjust magnetic resistance unshakable in one's determination perpendicular to its magnetic circuit direction.

In a kind of exemplary embodiment of the device body of electromagnetic potential transformer, the relative position of two iron cores can be by a fixed band banding, with convenient unshakable in one's determination fixing.

In a kind of exemplary embodiment of the device body of electromagnetic potential transformer, the abutting end of two core limbs is two planes that are parallel to each other.

This electromagnetic potential transformer that the utility model provides, it comprises an above-mentioned device body.

Hereinafter will be with clear and definite understandable mode, and the accompanying drawings preferred embodiment further specifies the device body of electromagnetic potential transformer and above-mentioned characteristic, technical characterictic, advantage and the implementation thereof of instrument transformer thereof.

Description of drawings

Following accompanying drawing is only done schematic illustration and explanation to the utility model, does not limit the scope of the utility model.

Fig. 1 is the sketch map of a kind of machine body structure of existing electromagnetic potential transformer.

Fig. 2 is in order to the core construction of explanation the utility model device body.

Fig. 3 is in order to explain the structure of the device body that is made up of iron core shown in Figure 2.

Fig. 4 is in order to the advantage of the device body of explanation the utility model.

Label declaration

10a, 10b, 10c iron core

12a, 12b core limb

14a, 14b air gap

20 windings

30 fixed bands

50 iron cores

60 windings

Embodiment

Understand for technical characterictic, purpose and effect to utility model have more clearly, contrast the embodiment of description of drawings the utility model at present, identical label is represented the identical or structural similarity of structure but the identical parts of function in each figure.

For making drawing succinct, only schematically shown out the part relevant among each figure with the utility model, they do not represent its practical structures as product.

Fig. 2 is in order to the core construction of explanation the utility model device body.As shown in Figure 2, the device body comprises two 10a unshakable in one's determination, 10b, and 10a unshakable in one's determination, 10b are positioned at grade and are adjacent one another are.Two 10a unshakable in one's determination, 10b parts adjacent one another are are

core limb

12a, 12b, and are used for the winding of wrapping head body.Fig. 3 is in order to explain the structure of the device body that is made up of iron core shown in Figure 2.Referring to Fig. 3, the device body comprises two 10a unshakable in one's determination, 10b shown in Figure 2, and winding 20 to be wrapped in these two 10a unshakable in one's determination,

10b core limb

12a, 12b located adjacent one another simultaneously last.

Under the long-pending identical condition in effective cross section unshakable in one's determination, the iron core weight of said structure is lighter, cost is lower.See also Fig. 4, Fig. 4 is used to explain the advantage of the device body of the utility model, and wherein chain-dotted line is represented the magnetic line of force of 10a unshakable in one's determination and 10b unshakable in one's determination respectively.As shown in Figure 4, winding 20 is wrapped on two 10a unshakable in one's determination, the 10b core limb (referring to Fig. 2) located adjacent one another simultaneously, the long-pending cross-sectional area sum that is two core limbs in its effective cross section.If adopt 10c unshakable in one's determination of the prior art, the position of the inward flange of left side 10a unshakable in one's determination is identical among the inward flange that then is equivalent to 10c unshakable in one's determination and Fig. 4, and the outward flange of 10c unshakable in one's determination is arranged in the position of figure dotted line.When the thickness of 10a unshakable in one's determination and 10b unshakable in one's determination and 10c unshakable in one's determination was identical, then long-pending the amassing with the effective cross section of 10a unshakable in one's determination and 10b unshakable in one's determination in the effective cross section of the 10c unshakable in one's determination of prior art equated.Can know that through contrast the inevitable volume less than 10c unshakable in one's determination of the volume sum of 10a unshakable in one's determination and 10b unshakable in one's determination promptly is provided with two iron cores and can reduces material usage, reduces weight unshakable in one's determination, and saves cost.

Wherein, iron core also can be selected wound core for use, and wound core can further reduce iron core weight with respect to laminated core.

Can offer

air gap

14a, 14b on 10a unshakable in one's determination shown in Figure 2 and the 10b unshakable in one's determination, in order to regulate the magnetic resistance of 10a unshakable in one's determination and 10b unshakable in one's determination perpendicular to its magnetic circuit direction.Certainly according to the difference of design demand, the position of offering of air gap also can be different.

Core limb 12a shown in Figure 2 and the abutting end of core limb 12b are two planes that are parallel to each other, and more convenient 10a unshakable in one's determination of this structure and 10b's unshakable in one's determination is fixing.Certainly according to the difference of design demand, core limb 12a and core limb 12b also can adopt other structures.

As shown in Figure 3,10a unshakable in one's determination and 10b unshakable in one's determination can be by fixed band 30 bandings.Utilize fixed band 30 fixed

iron core

10a and 10b unshakable in one's determination can not influence the structure of iron core self, can avoid damage unshakable in one's determination simultaneously.Certainly according to the difference of design demand, also can adopt other mode fixed iron cores.

Above-mentioned device body can be placed in the electromagnetic potential transformer, making full use of the space in the voltage transformer, and reduces weight unshakable in one's determination, reduces cost.

Utilize winding to be wound in two core limbs that iron core is adjacent one another are simultaneously, the machine body structure of the utility model can reduce weight unshakable in one's determination, reduce cost.

In this article, " schematically " expression " is served as instance, example or explanation ", should any diagram, the execution mode that be described to " schematically " in this article be interpreted as a kind of preferred or have more the technical scheme of advantage.

Be to be understood that; Though this specification is described according to each embodiment; But be not that each embodiment only comprises an independently technical scheme, this narrating mode of specification only is for clarity sake, and those skilled in the art should make specification as a whole; Technical scheme among each embodiment also can form other execution modes that it will be appreciated by those skilled in the art that through appropriate combination.

The listed a series of detailed description of preceding text only is specifying to the feasibility embodiment of the utility model; They are not the protection range in order to restriction the utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection range of the utility model.

Claims

1. the device body of electromagnetic potential transformer is characterized in that it comprises:

Two iron cores (10a, 10b), said two iron cores (10a, 10b) are provided with at grade and are adjacent one another are; With

A winding (20), said winding (20) are wound on said two iron cores (10a, 10b) two core limbs (12a, 12b) adjacent one another are simultaneously.

2. the device body of electromagnetic potential transformer according to claim 1 is characterized in that, said two iron cores (10a, 10b) are wound core.

3. the device body of electromagnetic potential transformer according to claim 1 is characterized in that, offers the air gap (14a, 14b) perpendicular to its magnetic circuit direction on said two iron cores (10a, 10b).

4. the device body of electromagnetic potential transformer according to claim 1 is characterized in that, the relative position of said two iron cores (10a, 10b) can be by a fixed band (30) banding.

5. the device body of electromagnetic potential transformer according to claim 1 is characterized in that, the abutting end of said two core limbs (12a, 12b) is two planes that are parallel to each other.

6. electromagnetic potential transformer is characterized in that, it comprises one like each described device body in the above-mentioned claim 1 to 5.