CN105575622A

CN105575622A - Iron core assembly of dry-type transformer

Info

Publication number: CN105575622A
Application number: CN201510989989.8A
Authority: CN
Inventors: 郭飞; 郭荣来; 王才杰; 江黎; 龚小明
Original assignee: Chongqing Shentong Transformer Co Ltd
Current assignee: Chongqing Shentong Transformer Co Ltd
Priority date: 2015-12-24
Filing date: 2015-12-24
Publication date: 2016-05-11

Abstract

The invention discloses an iron core assembly of a dry-type transformer. The iron core assembly comprises iron cores, an upper clamping plate and a lower clamping plate, wherein the iron cores are fixed between the upper clamping plate and the lower clamping plate by an upper iron yoke and a lower iron yoke, the two sides of the upper clamping plate are connected by screw rods, a grounding sheet is arranged on the upper clamping plate, foot pads are arranged at the bottom of the lower clamping plate, pull plates are arranged in gaps between the upper/lower iron yokes and the upper/lower clamping plates, the upper parts of the pull plates are detachably connected with the upper clamping plate by pull plate shafts, the lower parts of the pull plates are welded with the lower clamping plate, pull plate inner insulators are arranged on surfaces, opposite to the upper iron yoke and the lower iron yoke, of the pull plates, and foot pad insulators are arranged between the lower clamping plate and the foot pads. The upper/lower iron yokes and the upper/lower clamping plates are insulated by the pull plates, and the iron core assembly has the advantages of simplicity in structure, relatively low material consumption and favorable insulation performance; and moreover, since the cooling areas of the pull plates are large, the temperature of a transformer is difficult to rise, and the iron core assembly has relatively good safety performance.

Description

A kind of dry-type transformer iron core assembling

Technical field

The present invention relates to dry-type transformer, particularly a kind of dry-type transformer iron core assembles.

Background technology

Dry-type transformer is widely used in the industries such as smelting, glassware, and usual and other elements are same is placed in an Electric Appliance Cabinet, and wherein contain many electronic devices and components, electronic devices and components are very high to the requirement of ambient temperature.Present dry-type transformer iron core mainly contains the U-iron core arranging a pair leg at connecting portion two ends, or by structure that the outer leg that middle foot and bilateral symmetry thereof are arranged is connected by connecting portion, but the assembly structure insulation property of iron core are bad, and consumptive material is larger, temperature is higher, put together with electronic devices and components, easily security incident occurs.

Summary of the invention

Technical problem to be solved by this invention is to provide the assembling of a kind of dry-type transformer iron core, and this iron core assembly can reduce danger coefficient, avoids security incident.

For achieving the above object, the invention provides following technical scheme: a kind of dry-type transformer iron core assembling, comprise iron core, train wheel bridge and lower plate, iron core is by upper, lower yoke is fixed between train wheel bridge and lower plate, described train wheel bridge is connected by screw rod in its both sides, train wheel bridge is provided with ground strip, the bottom of lower plate is provided with feet, on described, lower yoke and upper, gap between lower plate is provided with arm-tie, the top of arm-tie is removably connected by arm-tie axle and train wheel bridge, the bottom of arm-tie is welded with lower plate, arm-tie and upper, the face that lower yoke is relative is provided with insulation in arm-tie, be provided with feet between described lower plate and feet to insulate.

Preferably, tied up by bandage and DMD preimpregnation strap between iron core and arm-tie.

Preferably, beam is provided with between feet insulation and feet.

Adopt technique scheme, make to insulate between upper and lower iron yoke and upper and lower clamping plate by arm-tie, structure is simple, and consumptive material is less, and insulation property are good, and due to arm-tie area of dissipation large, transformer is not easily heated up, there is good security performance.

Accompanying drawing explanation

Fig. 1 is front view of the present invention;

Fig. 2 is vertical view of the present invention;

Fig. 3 is the A-A cutaway view of Fig. 1;

Fig. 4 is the B-B cutaway view of Fig. 1;

Fig. 5 is the C-C cutaway view of Fig. 1;

Wherein, 1. insulation 9. feets insulate 10. beam 11. upper yoke 12. lower yokes in iron core 2. train wheel bridge 3. lower plate 4. screw rod 5. feet 6. arm-tie 7. arm-tie axle 8. arm-tie

Embodiment

Below in conjunction with accompanying drawing, by the description to embodiment, the present invention will be further described:

As shown in Fig. 1 ~ 5, a kind of dry-type transformer iron core assembling of the present invention, comprise iron core 1, train wheel bridge 2 and lower plate 3, iron core 1 is by upper, lower yoke 11, 12 are fixed between train wheel bridge 2 and lower plate 3, train wheel bridge 2 is connected by screw rod 4 in its both sides, train wheel bridge 2 is provided with ground strip, the bottom of lower plate 3 is provided with feet 5, on, lower yoke 11, 12 with upper, lower plate 2, gap between 3 is provided with arm-tie 6, the top of arm-tie 6 is removably connected by arm-tie axle 7 and train wheel bridge 2, the bottom of arm-tie 6 is welded with lower plate 3, arm-tie 6 is with upper, lower yoke 11, 12 relative faces are provided with insulation 8 in arm-tie, be provided with feet between lower plate 3 and feet 5 and insulate 9, beam 10 is provided with between feet insulation 9 and feet 5, tied up by bandage and DMD preimpregnation strap between iron core 1 and arm-tie 6.

The present invention makes to insulate between upper and lower iron yoke 11,12 and upper and lower clamping plate 3,4 by arm-tie 6, and structure is simple, and consumptive material is less, and insulation property are good, and due to arm-tie 6 area of dissipation large, transformer is not easily heated up, there is good security performance.

Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.

Claims

1. a dry-type transformer iron core assembling, comprise iron core (1), train wheel bridge (2) and lower plate (3), iron core (1) is by upper, lower yoke (11, 12) be fixed between train wheel bridge (2) and lower plate (3), described train wheel bridge (2) is connected by screw rod (4) in its both sides, train wheel bridge (2) is provided with ground strip, the bottom of lower plate (3) is provided with feet (5), it is characterized in that: on described, lower yoke (11, 12) with upper, lower plate (2, 3) gap between is provided with arm-tie (6), the top of arm-tie (6) is removably connected by arm-tie axle (7) and train wheel bridge (2), the bottom of arm-tie (6) is welded with lower plate (3), arm-tie (6) is with upper, lower yoke (11, 12) relative face is provided with insulation (8) in arm-tie, be provided with feet between described lower plate (3) and feet (5) and insulate (9).

2. dry-type transformer iron core assembling according to claim 1, be is characterized in that: tied up by bandage and DMD preimpregnation strap between described iron core (1) and arm-tie (6).

3. dry-type transformer iron core assembling according to claim 2, is characterized in that: be provided with beam (10) between described feet insulation (9) and feet (5).