CN203895249U - Simple cushion block of dry-type transformer - Google Patents

Simple cushion block of dry-type transformer Download PDF

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Publication number
CN203895249U
CN203895249U CN201420351656.3U CN201420351656U CN203895249U CN 203895249 U CN203895249 U CN 203895249U CN 201420351656 U CN201420351656 U CN 201420351656U CN 203895249 U CN203895249 U CN 203895249U
Authority
CN
China
Prior art keywords
cushion block
groove
dry
type transformer
draw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420351656.3U
Other languages
Chinese (zh)
Inventor
张志立
沈剑
黄志芳
沈山林
于春雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Zhixin Electric Amorphous Co Ltd
Shanghai Zhixin Electric Co Ltd
Jiangsu Hongyuan Electric Co Ltd
Chongqing Yadongya Group Transformer Co Ltd
Original Assignee
Shanghai Zhixin Electric Amorphous Co Ltd
Jiangsu Hongyuan Electric Co Ltd
Chongqing Yadongya Group Transformer Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Zhixin Electric Amorphous Co Ltd, Jiangsu Hongyuan Electric Co Ltd, Chongqing Yadongya Group Transformer Co Ltd filed Critical Shanghai Zhixin Electric Amorphous Co Ltd
Priority to CN201420351656.3U priority Critical patent/CN203895249U/en
Application granted granted Critical
Publication of CN203895249U publication Critical patent/CN203895249U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a simple cushion block of a dry-type transformer. The cushion block comprises a cushion block body and a locating portion installed on the top surface of the cushion block body and used for locating a high-voltage coil and a low-voltage coil of the transformer. A clamping groove is formed in the top surface of the cushion block body, a clamping block matched with the clamping groove is arranged on the bottom surface of the locating portion, and the locating portion is embedded into the clamping groove through the clamping block so as to achieve locating in the vertical direction. The simple cushion block of the dry-type transformer is installed between the upper ends of the coils and an upper clamping part and between the lower ends of the coils and a lower clamping part, can be used for locating the high-voltage coil and the low-voltage coil, guarantees concentricity and pretightening stability of the two coils and is divided into the cushion block body and the locating portion, the structure of the cushion block body and the structure of the locating portion are both simplified, the cushion block is easy to machine and manufacture, production cost is lowered, the locating portion is connected with the cushion block body through the clamping groove and the clamping block, matching can be carried out according to structures of transformers, and universality is good.

Description

The simple and easy cushion block of dry-type transformer
Technical field
The utility model relates to power transformer and manufactures field, relates in particular to the simple and easy cushion block of a kind of dry-type transformer.
Background technology
The device body cushion block of dry-type transformer, be arranged between the upper end of coil and upper clamping piece and between coil bottom and lower clamping piece, play coil support, location, pretension and fixing effect, sometimes also play the positioning action of insulating cylinder between high and low pressure, guarantee transformer overall mechanical strength, avoid coil displacement, particularly guarantee electric insulation requirement and the electrodynamic requirement of Short Circuit withstand electric current.For guaranteeing mechanical strength and the electric property of device body cushion block, in prior art, the device body cushion block of dry-type transformer generally uses DMC (SMC) material integrated die-casting to form, and need to use particular manufacturing craft, and fabrication cycle is long, and cost is higher, and structure is single, and versatility is poor.
Utility model content
In view of this, the purpose of this utility model is to provide the simple and easy cushion block of a kind of dry-type transformer, can position high and low pressure coil, guarantees the concentricity of two coils and the stability of pretension, and easily processing and fabricating, is beneficial to and reduces production costs, and versatility is good.
The simple and easy cushion block of dry-type transformer of the present utility model, the location division for transformer high and low pressure coil is positioned that comprises cushion block and be installed on cushion block end face; Described cushion block end face is provided with draw-in groove, and bottom surface, location division is provided with the fixture block matching with draw-in groove and by fixture block, embeds the location of realizing its vertical direction in draw-in groove;
Further, the cross section of described draw-in groove and fixture block is circular arc;
Further, described cushion block bottom surface is provided with counterbore;
Further, also comprise steel cap and nail pressing, steel cap is buckled in counterbore, and nail pressing is located in steel cap;
Further, described location division comprises along draw-in groove groove to the first silicagel pad, positioning boss and the second silicagel pad that are arranged in order setting; On described positioning boss, edge is provided with opening location notch outwardly perpendicular to draw-in groove direction;
Further, described positioning boss comprises along draw-in groove groove to a plurality of protruding parts that are arranged in order setting;
Further, described protruding part is even number and is symmetrical arranged; Described location notch is located between middle two protruding parts; Upper edge, the outer end lead angle of two protruding parts in outside;
Further, described cushion block is made by DMC or SMC material; Described protruding part is silica gel material; The hardness of described the first silicagel pad, the second silicagel pad and protruding part is greater than Shao Shi 60 degree.
The beneficial effects of the utility model are: the simple and easy cushion block of dry-type transformer of the present utility model, be arranged between the upper end of coil and upper clamping piece and between coil bottom and lower clamping piece, can position high and low pressure coil, guarantee the concentricity of two coils and the stability of pretension, be divided into cushion block and location division two parts, every part-structure is simplified, easy processing and fabricating, be beneficial to and reduce production costs, location division is connected with cushion block with fixture block by draw-in groove, can mate according to transformer device structure, versatility is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is three-dimensional view of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model, Fig. 2 is three-dimensional view of the present utility model, as shown in the figure: the simple and easy cushion block of dry-type transformer of the present embodiment, the location division 2 for transformer high and low pressure coil is positioned that comprises cushion block 1 and be installed on cushion block 1 end face, described cushion block 1 end face is provided with draw-in groove 3, 2 bottom surfaces, location division are provided with the fixture block 4 matching with draw-in groove 3 and embed the interior location of realizing its vertical direction of draw-in groove 3 by fixture block 4, cushion block 1 is rectangular block, its end face is plane, the corresponding cushion block 1 major axis center line of draw-in groove 3 connects and arranges, draw-in groove 3 inner widths are greater than its width of rebate, it can be oat tail groove structure, the fixture block 4 that makes location division 2 slips into and realizes being connected between cushion block 1 and location division 2 along one end of draw-in groove 3, can the supporting location division 2 that a plurality of different structures are set of corresponding cushion block 1, to adapt to different transformer device structures, versatility is good, cushion block 1 can adopt DMC (SMC) material die cast, because cushion block 1 structure is simplified, and therefore easily processing and fabricating, and location division 2 can adopt the material that silica gel etc. can cutting to make, difficulty of processing is low, is beneficial to reduce production costs, cushion block 1 end face is all the time towards location division 2, so the simple and easy cushion block of the dry-type transformer of the present embodiment is while being installed between the upper end of coil and upper clamping piece, and cushion block 1 end face is a vertical side down.
In the present embodiment, the cross section of described draw-in groove 3 and fixture block 4 is circular arc, determine behind the center of circle of draw-in groove 3 and fixture block 4, can to draw-in groove 3 and fixture block 4, process by the existing process technology of milling endoporus, milling arc surface, easy to process, efficiency is high, and easily controlled working precision, reduces the fit clearance between draw-in groove 3 and fixture block 4.
In the present embodiment, described cushion block 1 bottom surface is provided with counterbore 5, when being installed between coil bottom and lower clamping piece, can carry out horizontal location by 5 pairs of cushion blocks of counterbore 1.
In the present embodiment, also comprise steel cap 6 and nail pressing 7, steel cap 6 is buckled in counterbore 5, and nail pressing 7 is located in steel cap 6, and when being installed between the upper end of coil and upper clamping piece, electric field that can homogenizing nail pressing 7 places, solves the problem of partial discharge.
In the present embodiment, described location division 2 comprises along draw-in groove 3 grooves to the first silicagel pad 8, positioning boss and the second silicagel pad 9 that are arranged in order setting; On described positioning boss, edge is provided with opening location notch 10 outwardly perpendicular to draw-in groove 3 directions, independently the first silicagel pad 8, positioning boss and the second silicagel pad 9 three parts form location divisions 2 each other in employing, the first silicagel pad 8, positioning boss and second silicagel pad 9 of many group different structures can be supportingly set, therefore can carry out rational composition matching according to different transformer device structures, further improve versatility, each several part structure is simplified simultaneously, easily processing and fabricating; The first silicagel pad 8 and the second silicagel pad 9 are all laid in cushion block 1 top, and the first silicagel pad 8, the second silicagel pad 9 and positioning boss bottom surface arrange respectively fixture block 4; Cushion block 1 top is all the time towards location division 2, therefore when the simple and easy cushion block of dry-type transformer of the present embodiment is installed between the upper end of coil and upper clamping piece, cushion block 1 top is a vertical side down, and location notch 10 openings refer to that location notch 10 opening directions are a positioning boss side of cushion block 1 dorsad outwardly.
In the present embodiment, described positioning boss comprises along draw-in groove 3 grooves to a plurality of protruding parts 11 that are arranged in order setting, can, according to the quantity of the positioning requirements choose reasonable protruding part 11 of different main empty path coils, make the thickness of positioning boss suitable; Each protruding part 11 bottom surfaces arrange respectively fixture block 4, and the fixture block 4 making it by is separately connected with cushion block 1.
In the present embodiment, described protruding part 11 is even number and is symmetrical arranged; Described location notch 10 is located between middle two protruding parts 11; Upper edge, the outer end lead angle of two protruding parts 11 in outside; The fixture block 4 of middle two protruding parts 11 stretches out respectively in the middle of this two protruding part 11, therefore by the supporting role between fixture block 4, makes the described location notch 10 of this two protruding parts, 11 separated formation.
In the present embodiment, described cushion block 1 is made by DMC or SMC material; Described protruding part 11 is silica gel material; The hardness of described the first silicagel pad 8, the second silicagel pad 9 and protruding part 11 is greater than Shao Shi 60 degree.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (8)

1. the simple and easy cushion block of dry-type transformer, is characterized in that: the location division for transformer high and low pressure coil is positioned that comprises cushion block and be installed on cushion block end face; Described cushion block end face is provided with draw-in groove, and bottom surface, location division is provided with the fixture block matching with draw-in groove and by fixture block, embeds the location of realizing its vertical direction in draw-in groove.
2. the simple and easy cushion block of dry-type transformer according to claim 1, is characterized in that: the cross section of described draw-in groove and fixture block is circular arc.
3. the simple and easy cushion block of dry-type transformer according to claim 2, is characterized in that: described cushion block bottom surface is provided with counterbore.
4. the simple and easy cushion block of dry-type transformer according to claim 3, is characterized in that: also comprise steel cap and nail pressing, steel cap is buckled in counterbore, and nail pressing is located in steel cap.
5. the simple and easy cushion block of dry-type transformer according to claim 4, is characterized in that: described location division comprises along draw-in groove groove to the first silicagel pad, positioning boss and the second silicagel pad that are arranged in order setting; On described positioning boss, edge is provided with opening location notch outwardly perpendicular to draw-in groove direction.
6. the simple and easy cushion block of dry-type transformer according to claim 5, is characterized in that: described positioning boss comprises along draw-in groove groove to a plurality of protruding parts that are arranged in order setting.
7. the simple and easy cushion block of dry-type transformer according to claim 6, is characterized in that: described protruding part is even number and is symmetrical arranged; Described location notch is located between middle two protruding parts; Upper edge, the outer end lead angle of two protruding parts in outside.
8. the simple and easy cushion block of dry-type transformer according to claim 7, is characterized in that: described cushion block is made by DMC or SMC material; Described protruding part is silica gel material; The hardness of described the first silicagel pad, the second silicagel pad and protruding part is greater than Shao Shi 60 degree.
CN201420351656.3U 2014-06-26 2014-06-26 Simple cushion block of dry-type transformer Expired - Fee Related CN203895249U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420351656.3U CN203895249U (en) 2014-06-26 2014-06-26 Simple cushion block of dry-type transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420351656.3U CN203895249U (en) 2014-06-26 2014-06-26 Simple cushion block of dry-type transformer

Publications (1)

Publication Number Publication Date
CN203895249U true CN203895249U (en) 2014-10-22

Family

ID=51721620

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420351656.3U Expired - Fee Related CN203895249U (en) 2014-06-26 2014-06-26 Simple cushion block of dry-type transformer

Country Status (1)

Country Link
CN (1) CN203895249U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105788831A (en) * 2016-05-23 2016-07-20 江苏中容科技有限公司 Dry-type transformer with combined type cushion blocks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105788831A (en) * 2016-05-23 2016-07-20 江苏中容科技有限公司 Dry-type transformer with combined type cushion blocks

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141022

Termination date: 20190626

CF01 Termination of patent right due to non-payment of annual fee