CN202102843U

CN202102843U - Three-phase five-column rectifier transformer

Info

Publication number: CN202102843U
Application number: CN2011200974759U
Authority: CN
Inventors: 王晓兵; 周奇; 包正科
Original assignee: ZHANGJIAGANG XIN TEBIAN S&T CO Ltd
Current assignee: ZHANGJIAGANG XIN TEBIAN S&T CO Ltd
Priority date: 2011-04-06
Filing date: 2011-04-06
Publication date: 2012-01-04
Anticipated expiration: 2021-04-06

Abstract

The utility model discloses a three-phase five-column rectifier transformer with low noises, which comprises a transformer body. The transformer body further comprises an iron core, three coils wrapped on the iron core and iron core side yokes located on two sides of the coils respectively. The iron core side yokes are formed by overlaying a plurality of silicon-steel sheets, the iron core side yokes and the coils are located on a line, the iron core and the iron core side yokes are fixed together through four clamping plates and at least four screws, and the four screws penetrate through the ends of the iron core side yokes respectively. Pressing plates are tightly attached to the outer sides of two silicon-steel sheets located at the outermost layers of the iron core side yokes respectively, the four screws penetrating through the ends of the iron core side yokes also penetrate through the ends of the pressing plates, and the clamping plates are tightly attached to the pressing plates opposite to the clamping plates. The three-phase five-column rectifier transformer has the advantages that the pressing plates are arranged outside the iron core side yokes, the pressing plates are tightly compressed with the silicon-steel sheets by utilizing the clamping plates, and the rigidity of the pressing plates is utilized to prevent the silicon-steel sheets from being bent, thereby preventing gaps from being generated among the silicon-steel sheets, reducing noises and improving performance of the transformer.

Description

The three-phase and five-pole rectifier transformer

Technical field

The utility model relates to transformer, refers more particularly to a kind of three-phase and five-pole rectifier transformer.

Background technology

As depicted in figs. 1 and 2; The three-phase and five-pole rectifier transformer comprises the device body; The device body comprises iron core 1 again, is wrapped in three coils 8 on the iron core 1 and lays respectively at coil 8 both sides makes two groups of three-plase half wave rectifier circuits realize the iron core return yoke 2 of parallel operation in proper order; Iron core return yoke 2 is formed by stacking some silicon steel sheets 3, and is enclosed with strap 4 around the iron core return yoke 2, and iron core return yoke 2 is positioned at a straight line with coil 8; Coil 8 is fixed together through four clamping plate 5 and some screw rods 6 with iron core return yoke 2, and has four screw rods 6 to pass the end of iron core return yoke 2 respectively.Because manufacturing technique requirent only offers one on each silicon steel sheet 3 and is used for the hole that screw rod 6 passes.The shortcoming of the three-phase and five-pole rectifier transformer of said structure is: because strap 4 is through the mode that manual work is twined multi-disc silicon steel sheet 3 to be held together by certain technological requirement to form iron core return yoke 2; The old friend is that factor is very big, and is little like staff's strength, makes between strap 4 and the silicon steel sheet 3 twine not tight; In transportation; Strap 4 is easy to become flexible, and will produce the space between the silicon steel sheet 3 of composition iron core return yoke 2, and silicon steel sheet 3 will produce bending, distortion; Influence aesthetic appearance greatly; And make the performance level of three-phase and five-pole rectifier transformer reduce, and the gap that produces between the silicon steel sheet in the iron core return yoke 23 makes the three-phase and five-pole rectifier transformer in running, be easy to generate a large amount of noises, destroys environment.

The utility model content

The utility model technical problem to be solved is: provide a kind of noise very little three-phase and five-pole rectifier transformer.

For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of three-phase and five-pole rectifier transformer; Comprise the device body, the device body comprises iron core again, be wrapped in three coils on the iron core and lay respectively at the iron core return yoke of coil both sides, and the iron core return yoke is formed by stacking some silicon steel sheets; Iron core return yoke and coil are positioned at a straight line; Iron core and iron core return yoke are fixed together through four clamping plate and four screw rods at least, and have four screw rods to pass the end of iron core return yoke respectively, and the outside that is positioned at outermost layer two silicon steel sheets in the said iron core return yoke is glued with pressing plate respectively; Four screw rods that pass iron core return yoke end also pass the end of pressing plate, and clamping plate respectively with it with respect to pressing plate be close to.

Said iron core return yoke and pressing plate are bundled together through strap.

The beneficial effect of the utility model is owing to iron core return yoke arranged outside pressing plate and utilizes clamping plate that pressing plate and silicon steel sheet are compressed; Utilize the pressing plate self rigidity to hinder the bending of silicon steel sheet; Thereby prevent to produce the gap between the silicon steel sheet, reduced noise, improved the performance of transformer.

Description of drawings

Fig. 1 is the structural representation of three-phase and five-pole rectifier transformer in the background technology;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is the structural representation of the utility model three-phase and five-pole rectifier transformer;

Fig. 4 is that the B of Fig. 3 is to view.

Among Fig. 1, Fig. 2: 1, iron core, 2, the iron core return yoke, 3, silicon steel sheet, 4, strap, 5, clamping plate, 6, screw rod, 8, coil.

Among Fig. 3, Fig. 4: 1, iron core, 2, the iron core return yoke, 3, silicon steel sheet, 4, strap, 5, clamping plate, 6, screw rod, 7, pressing plate, 8, coil.

Embodiment

Below in conjunction with accompanying drawing, describe the specific embodiments of the utility model in detail.

Like Fig. 3; Shown in Figure 4, the three-phase and five-pole rectifier transformer of the utility model comprises the device body; The device body comprises iron core 1 again, be wrapped in three coils 8 on the iron core 1 and lay respectively at the iron core return yoke 2 of coil 8 both sides; Iron core return yoke 2 is formed by stacking some silicon steel sheets 3, and iron core return yoke 2 is positioned at a straight line with coil 8, and the outside that is positioned at outermost layer two silicon steel sheets 3 in the iron core return yoke 2 is glued with respectively has the pressing plate 7 that certain rigidity and insulation processing are crossed; Coil 8 is fixed together through four clamping plate 5 and four screw rods 6 with iron core return yoke 2 at least, and concrete screw rod quantity requires to set up on their own according to reality.Wherein four screw rods 6 pass the end of iron core return yoke 2 and pressing plate 7 respectively, and the corresponding with it respectively pressing plate 7 of clamping plate 5 is close to.In order to prevent that producing dislocation in the iron core return yoke 2 between the silicon steel sheet 3 influences transformer performance, iron core return yoke 2 is bundled together through strap 4 with pressing plate 7.

The utility model has the advantages that: at iron core return yoke 2 arranged outside pressing plates 7 and utilize clamping plate 5 that pressing plate 7 and silicon steel sheet 3 are compressed; Utilize pressing plate 7 self rigidity to hinder the bending of silicon steel sheet 3; Thereby prevent to produce the gap between the silicon steel sheet 3; Reduced because of the noise that the gap produced between the silicon steel sheet 3, and improved the performance of transformer.

Claims

1. three-phase and five-pole rectifier transformer; Comprise the device body, the device body comprises iron core again, be wrapped in three coils on the iron core and lay respectively at the iron core return yoke of coil both sides, and the iron core return yoke is formed by stacking some silicon steel sheets; Iron core return yoke and coil are positioned at a straight line; Iron core and iron core return yoke are fixed together through four clamping plate and four screw rods at least, and have four screw rods to pass the end of iron core return yoke respectively, and it is characterized in that: the outside that is positioned at outermost layer two silicon steel sheets in the said iron core return yoke is glued with pressing plate respectively; Four screw rods that pass iron core return yoke end also pass the end of pressing plate, and clamping plate respectively with it with respect to pressing plate be close to.

2. three-phase and five-pole rectifier transformer according to claim 1 is characterized in that: said iron core return yoke and pressing plate are bundled together through strap.