CN205264460U - Compact is dry -type rectifier transformer structure for variable frequency speed governing(VFSG) - Google Patents

Abstract

The utility model provides a compact is dry -type rectifier transformer structure for variable frequency speed governing(VFSG), includes: footing, iron core and coil, last folder that the left and right sides at the upper and lower both ends of iron core set up respectively and folder down, the folder includes base plate and curb plate, lower folder is fixed on the footing, going up L shape bent plate and reaching L shape bent plate down, every L shape bent plate includes the main board and the second board of orthogonal connection, and the main board is parallel to each other with a curb plate and is fixed mutually, be located the terminal mounting panel of the iron core left and right sides respectively, wherein, install the wiring bolt on the terminal mounting panel, the wiring bolt includes integrated into one piece's double -screw bolt and nut, and the double -screw bolt passes the terminal mounting panel, and the nut setting is in the terminal mounting panel is close to the sunken countersunk head groove that forms in iron core one side, and " [ " the shape the insulator. Under same insulating properties, corresponding straight -line distance and the transformer overall dimension who reduces to draw line space is even get transformer compact structure ization like this.

Description

A kind of compact frequency control dry-type rectifier transformer structure

Technical field

The utility model relates to field transformer, relates in particular to a kind of compact frequency control dry type wholeConvertor transformer structure.

Background technology

Frequency control is with its excellent speed governing and open braking ability, high efficiency, High Power Factor and energy-conservationEffect, the scope of application and other many advantages, become high-performance AC speed governing field widelyMiddle countries in the world receive much concern and one of the technology given priority to. And frequency control dry rectifierTransformer, as the insulating power supply in RHVC, is indispensable critical elements.

Because power transformer is positioned over open air conventionally, client to transformer appearance and size without strictlyRequirement. And frequency control is positioned in frequency conversion adjustment System integrated cabinet with dry-type rectifier transformer more,Monnolithic case size to transformer has strict requirement, therefore needs at present one to meet and wantsAsk, can be placed on again the frequency control dry-type rectifier transformer in cabinet.

Utility model content

The utility model for existing frequency control with dry-type rectifier transformer terminal connections plateLimitation, adopts the method for adding a cover covered insulating after terminal installing plate is installed connection bolt, realThe technical scheme of existing above-mentioned purpose is as follows:

A kind of compact frequency control dry-type rectifier transformer structure is provided, comprises:

Footing, lower end are fixed on iron core and the coil of winding on iron core on described footing;

The left and right sides of described iron core upper/lower terminal arrange respectively for clamping described iron coreThese two left and right of upper clamping piece and lower clamping piece are just to the folder arranging, and described folder comprises along vertically squareTo the substrate extending and the side being vertically extended laterally respectively by the two ends up and down of described substratePlate, described lower clamping piece is fixed on described footing;

Be fixed on the upper L shaped bent plate on described upper clamping piece and be fixed on the lower L on described lower clamping pieceShape bent plate, each described L shaped bent plate comprises the first plate and second plate of orthogonal connection, instituteState the first plate and a described side plate is parallel to each other and fixes;

Lay respectively at the terminal installing plate of the iron core left and right sides, each described terminal installing plate upperEnd is fixed on described second plate of described L shaped bent plate of a corresponding side, and described terminal is installedThe lower end of plate is fixed on described second plate of described lower L shaped bent plate of a corresponding side; Wherein,On described terminal installing plate, connection bolt is installed, described connection bolt comprises integrated spiral shellPost and nut, described double-screw bolt is through described terminal installing plate, and described nut is arranged on described terminalIn the countersunk head groove that installing plate is recessed to form near described iron core one side;

And it is lip-deep to be coated on described terminal installing plate " insulator of [" shape, described insulationBody extends on comprising vertically and is positioned at described terminal installing plate near described iron core one sideBase portion, and by extended both sides on along continuous straight runs respectively, the two ends of described matrix.

Further, the axial two ends of described coil are respectively arranged with and are fixed on described iron coreYoke cushion block, to prevent that described coil from sliding axially.

The utility model under same insulating properties, the straight line in the space that can correspondingly reduce to go betweenDistance and transformer appearance and size, make transformer device structure densification.

Brief description of the drawings

Fig. 1 is the structural representation of transformer device structure of the present utility model;

Fig. 2, Fig. 3 are respectively top view and the side view of the utility model transformer portion structure.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in detail.

Refer to Fig. 1, transformer device structure of the present utility model, comprises footing 1, iron core (figureIn do not indicate) and coil 2. There is shown the two ends up and down of iron core, i.e. iron core upper end 31With iron core lower end 32. Wherein, coil 2 windings are on iron core, and by being arranged on coil 2Axially the yoke cushion block (not shown in FIG.) at two ends is fixed at axial direction, in case principal vertical line circle 2 edgesSlide axially, wherein yoke cushion block is fixed on iron core.

The right side of iron core upper end 31 and iron core lower end 32 is provided with upper clamping piece 41, lower clamping piece 42,The left side of iron core upper end 31 and iron core lower end 32 is provided with upper clamping piece 43, lower clamping piece 44. OnFolder 41 and upper clamping piece 43 left and right are just to arranging, for clamping iron core to prevent loose sheet; SimilarGround, lower clamping piece 42, also falls apart preventing for clamping iron core just to arranging with lower clamping piece 44 left and rightSheet. Wherein, each folder comprises the substrate 4b vertically extending, and by substrate 4bTwo ends up and down the side plate 4a, the 4b that vertically extend laterally respectively. Wherein, lower clamping piece 42Also be fixed on footing 1 with lower clamping piece 44.

In the left and right sides of iron core upper end 31 and iron core lower end 32, also comprise every side setting in additionUpper L shaped bent plate 51, lower L shaped bent plate 52, terminal installing plate 6 and insulator 7 (left sidesNot shown). Wherein, upper L shaped bent plate 51 is fixed on upper clamping piece 41, lower L shaped bent plate52 are fixed on lower clamping piece 42. These two L shaped bent plates include first of orthogonal connectionPlate 5a and 5b. Wherein, the first plate 5a and side plate 4a are parallel to each other, and are boltedConnect. Terminal installing plate 6 vertically extends, and its upper end is fixed on the upper L of a corresponding sideThe second plate 5b of shape bent plate 51 is upper, the upper end of terminal installing plate 6 be fixed on a corresponding side underOn the second plate 5b of L shaped bent plate 53.

Wherein, connection bolt 8 is installed on terminal installing plate 5, connection bolt 8 comprises oneThe double-screw bolt 8a of moulding and nut 8b, double-screw bolt 8a is through terminal installing plate 6, and nut 8b arrangesThe countersunk head being recessed to form near iron core upper end 31 and iron core lower end 32 1 sides at terminal installing plate 6In groove (not indicating in figure).

In addition, transformer device structure of the present utility model also comprises and being coated on terminal installing plate surface" insulator 7 of [" shape. Refer to Fig. 2, Fig. 3. Insulator 7 comprises verticallyUpper extension and be positioned at the base of terminal installing plate 6 near iron core upper end 31 and iron core lower end 32 1 sidesThe 7a of portion, and by extended both sides 7b on the two ends difference along continuous straight runs of matrix. ItsIn, insulator 7 can be fitted its terminal connections plate 6 by modes such as a glue, integrated injection moldings.

The utility model is due to the nut of connection bolt is arranged in countersunk head groove, and simultaneously by "The insulator of [" shape carries out three bread to terminal installing plate and covers, and therefore insulating properties are splendid; ThisSample just can be under same insulating properties, air line distance and the transformation in the corresponding space that reduces to go betweenDevice appearance and size, reaches the object that makes transformer device structure compactness.

These are only the preferred embodiment of the utility model embodiment, in order to restriction not originallyUtility model embodiment, all within the spirit and principle of the utility model embodiment, doAny amendment, be equal to replacement, improvement etc., all should be included in the protection of the utility model embodimentIn scope.

Claims (2)

1. a compact frequency control dry-type rectifier transformer structure, comprising:

Footing, lower end are fixed on iron core and the coil of winding on iron core on described footing;

The left and right sides of described iron core upper/lower terminal arrange respectively for clamping described iron coreThese two left and right of upper clamping piece and lower clamping piece are just to the folder arranging, and described folder comprises along vertically squareTo the substrate extending and the side being vertically extended laterally respectively by the two ends up and down of described substratePlate, described lower clamping piece is fixed on described footing;

Be fixed on the upper L shaped bent plate on described upper clamping piece and be fixed on the lower L on described lower clamping pieceShape bent plate, each described L shaped bent plate comprises the first plate and second plate of orthogonal connection, instituteState the first plate and a described side plate is parallel to each other and fixes;

Lay respectively at the terminal installing plate of the iron core left and right sides, each described terminal installing plate upperEnd is fixed on described second plate of described L shaped bent plate of a corresponding side, and described terminal is installedThe lower end of plate is fixed on described second plate of described lower L shaped bent plate of a corresponding side; Wherein,On described terminal installing plate, connection bolt is installed, described connection bolt comprises integrated spiral shellPost and nut, described double-screw bolt is through described terminal installing plate, and described nut is arranged on described terminalIn the countersunk head groove that installing plate is recessed to form near described iron core one side;

And it is lip-deep to be coated on described terminal installing plate " insulator of [" shape, described insulationBody extends on comprising vertically and is positioned at described terminal installing plate near described iron core one sideBase portion, and by extended both sides on along continuous straight runs respectively, the two ends of described matrix.

2. compact frequency control dry-type rectifier transformer structure as claimed in claim 1, itsBe characterised in that, the axial two ends of described coil are respectively arranged with the yoke pad being fixed on described iron corePiece, to prevent that described coil from sliding axially.