CN211125247U

CN211125247U - 12-pulse self-coupling rectifier transformer

Info

Publication number: CN211125247U
Application number: CN201922379465.3U
Authority: CN
Inventors: 肖任泉; 范康; 周作斌
Original assignee: DONGGUAN LEADER ELECTRONICS Inc
Current assignee: DONGGUAN LEADER ELECTRONICS Inc
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-07-28
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a 12 arteries and veins auto rectifier transformer, including shell and frame, just the frame is located the inside of shell, the frame includes the yoke that the symmetry set up, evenly install three iron core post between the yoke, just it is equipped with winding one, winding two, winding three respectively on the iron core post, winding one includes primary winding A and secondary winding one, secondary winding one includes secondary subwinding a 'and secondary subwinding a constitutes, just secondary subwinding a' with secondary subwinding a installs respectively in the first half and the latter half of primary winding A, winding two includes primary winding B and secondary subwinding, secondary subwinding B includes secondary subwinding B 'and secondary subwinding B constitutes, just secondary subwinding B' with secondary subwinding B install respectively the first half and the latter half of primary winding B, the third winding comprises a primary winding C and a secondary winding III.

Description

12-pulse self-coupling rectifier transformer

Technical Field

The utility model relates to a transformer technical field particularly, relates to a 12 arteries and veins auto rectifier transformer.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and the main components of the transformer are a primary coil, a secondary coil and an iron core (magnetic core), and the main functions of the transformer are voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer) and the like; an isolated rectification phase-shifting transformer belongs to one type of transformer, but the traditional isolated rectification phase-shifting transformer has larger structural capacity, volume and weight, and higher cost under the condition of the same capacity, so that the use requirements of people cannot be better met.

In summary, how to reduce the cost of the rectifying phase-shifting transformer under the condition of the same capacity is a technical problem which needs to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The technical task of the utility model is to above not enough, provide a 12 arteries and veins auto-coupling rectifier transformer, solve how can make the rectification phase shift transformer's problem of cost reduction under the condition with capacity.

The technical scheme of the utility model is realized like this:

the utility model provides a 12 arteries and veins auto-rectifier transformer, includes shell and frame, just the frame is located the inside of shell, the frame is including the yoke that the symmetry set up, evenly install three iron core post between the yoke, just around being equipped with winding one, winding two, winding three on the iron core post respectively, winding one is including primary winding A and secondary winding one, secondary winding one includes secondary subwinding a ' and secondary subwinding a constitutes, just secondary subwinding a ' with secondary subwinding a installs respectively the first half and the latter half of primary winding A, winding two is including primary winding B and secondary subwinding B, secondary subwinding B ' includes secondary subwinding B ' and secondary subwinding B constitutes, just secondary subwinding B ' with secondary subwinding B installs the first half and the latter half of primary winding B respectively, the third winding comprises a primary winding C and a secondary winding III, the secondary winding III comprises a secondary sub-winding C 'and a secondary sub-winding C, the secondary sub-winding C' and the secondary sub-winding C are respectively installed on the upper half part and the lower half part of the primary winding C, the outer shell comprises an outer layer and an inner layer, a heat insulation layer is arranged on one side, close to the inner layer, of the outer layer, and an anti-static layer is arranged on one side, close to the inner layer, of the heat insulation layer.

Preferably, L-shaped blocks are mounted on each corner edge of the outer side of the frame, and fixing blocks are mounted on one side edge of the L-shaped block close to the inner wall of the shell.

Preferably, the number of the yokes is two, and the number of the core legs is three, the two yokes being symmetrically arranged, and the core legs being perpendicular to the yokes and being parallel to each other.

Preferably, the first winding, the second winding and the third winding are in a triangular structure, and the phase shift angles output between two adjacent windings are both 30 °.

Preferably, the secondary sub-winding a ' and the secondary sub-winding a are respectively mounted on the upper half portion and the lower half portion of the primary winding a in a double-split structure, the secondary sub-winding B ' and the secondary sub-winding B are respectively mounted on the upper half portion and the lower half portion of the primary winding B in a double-split structure, and the secondary sub-winding C ' and the secondary sub-winding C are respectively mounted on the upper half portion and the lower half portion of the primary winding C in a double-split structure.

Preferably, a hollow structure is arranged between the inner layer and the anti-static layer, a plurality of connecting blocks are arranged inside the hollow structure, and the inner layer and the anti-static layer are fixedly connected through the connecting blocks.

Preferably, the bracing piece is installed to the both sides limit equal symmetry of shell, just the bracing piece is kept away from the equal fixedly connected with mounting panel of one end of shell, equal symmetry is run through and is installed fixing bolt on the mounting panel.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

1. through the interaction of the first winding, the second winding and the third winding, the structure capacity is reduced by utilizing the principle of the autotransformer under the condition of unchanged power, the volume and the weight of the transformer are reduced, and the use of people can be better satisfied.

2. Through the interaction of the outer layer, the inner layer and the heat insulation layer with the anti-static layer, the shell can achieve good heat insulation and anti-static effects, so that each part inside the shell can be protected better, and the use requirements of people can be met better.

3. Through the utility model discloses fine solution can make the problem of the cost reduction of rectification phase-shifting transformer under the condition with capacity, adopt the self coupling connection simultaneously, calculate reducing of capacity for the product empty load loss can reduce, has improved the efficiency of complete machine, and has practiced thrift the material, has reduced product volume and weight and has reduced product cost, the user demand who satisfies people that is convenient for can be better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram according to an embodiment of the present invention;

fig. 2 is a schematic view of the internal structure of the frame according to an embodiment of the present invention;

fig. 3 is a schematic circuit diagram according to an embodiment of the invention;

fig. 4 is a schematic diagram of a winding connection set according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a cross section of a housing according to an embodiment of the present invention.

In the figure:

1. the transformer comprises a shell, a frame, a yoke, a core column, a.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

The invention will be further explained with reference to the drawings and the specific embodiments.

Embodiment one, as shown in fig. 1 to 5, a 12-pulse self-coupled rectifier transformer according to an embodiment of the present invention includes a housing 1 and a frame 2, and the frame 2 is located inside the housing 1, the frame 2 includes yokes 3 symmetrically arranged, three core legs 4 are uniformly installed between the yokes 3, and a winding one 5, a winding two 6, and a winding three 7 are respectively wound on the core legs 4, the winding one 5 includes a primary winding A8 and a secondary winding one 9, the secondary winding one 9 includes a secondary sub-winding a ' 10 and a secondary sub-winding a11, and the secondary sub-winding a ' 10 and the secondary sub-winding a11 are respectively installed on an upper half portion and a lower half portion of the primary winding A8, the winding two 6 includes a primary winding B12 and a secondary winding two 13, the secondary winding two 13 includes a secondary sub-winding B ' 14 and a secondary sub-winding B15, the secondary sub-winding B ' 14 and the secondary sub-winding B15 are respectively installed on the upper half part and the lower half part of the primary winding B12, the winding three 7 comprises a primary winding C16 and a secondary winding three 17, the secondary winding three 17 comprises a secondary sub-winding C ' 18 and a secondary sub-winding C19, the secondary sub-winding C ' 18 and the secondary sub-winding C19 are respectively installed on the upper half part and the lower half part of the primary winding C16, and through the interaction of the winding one 5, the winding two 6 and the winding three 7, the structure capacity is reduced and the volume and the weight of the transformer are reduced under the condition that the power is not changed by utilizing the principle of the auto-transformer, so that the use of people can be better satisfied, the outer shell 1 comprises an outer layer 20 and an inner layer 21, and a heat insulation layer 22 is arranged on one side of the outer layer 20 close to the inner layer 21, one side of the heat insulation layer 22 close to the inner layer 21 is provided with an antistatic layer 23, and through the interaction between the outer layer 20 and the inner layer 21 and between the heat insulation layer 22 and the antistatic layer 23, the shell 1 can achieve good heat insulation and antistatic effects, so that each part inside the shell 1 can be protected better, and further the use requirements of people can be met better.

In the second embodiment, as shown in fig. 1, L-shaped blocks 24 are mounted on each corner edge of the outer side of the frame 2, and fixing blocks 25 are mounted on one side edge of the L-shaped block 24 close to the inner wall of the housing 1, so that the frame 2 can achieve good stability in the housing 1 through interaction between the L-shaped blocks 24 and the fixing blocks 25, thereby ensuring normal operation of the transformer and further facilitating better meeting the use requirements of people.

In a third embodiment, as shown in fig. 1 and 2, the number of the yokes 3 is two, and the number of the core legs 4 is three, the two core legs being perpendicular to the yokes 3 and being parallel to each other; the structure capacity is reduced, the volume and the weight of the transformer are reduced, and the use requirements of people can be better met.

In a fourth embodiment, as shown in fig. 4, the first winding 5, the second winding 6, and the third winding 7 are in a triangular structure, and phase-shifting angles output between two adjacent windings are both 30 °; the phase shift angle of the triangular winding structure and the output is 30 degrees, 3 times of harmonic suppression can be better performed, so that a better harmonic suppression effect can be achieved, and the use requirements of people can be better met.

In a fifth embodiment, as shown in fig. 2, 3 and 4, the secondary sub-winding a ' 10 and the secondary sub-winding a11 are respectively mounted on the upper half portion and the lower half portion of the primary winding a8 in a double-split structure, the secondary sub-winding B ' 14 and the secondary sub-winding B15 are respectively mounted on the upper half portion and the lower half portion of the primary winding B12 in a double-split structure, and the secondary sub-winding C ' 18 and the secondary sub-winding C19 are respectively mounted on the upper half portion and the lower half portion of the primary winding C16 in a double-split structure; the double-split winding structure is adopted, so that the high-voltage balanced type transformer has high through impedance, and can have a current equalizing effect under the condition that a balance reactor is not used, and the use requirements of people can be better met.

In a sixth embodiment, as shown in fig. 5, a hollow structure 26 is disposed between the inner layer 21 and the anti-static layer 23, a plurality of connection blocks 27 are mounted inside the hollow structure 26, and the inner layer 21 and the anti-static layer 23 are fixedly connected through the plurality of connection blocks 27; through the hollow structure 26, the casing 1 can achieve better heat insulation and antistatic effects, and through the connecting block 27, good stability can be achieved between the inner layer 21 and the antistatic layer 23, so that the use requirements of people can be better met.

Seventhly, as shown in fig. 1, support rods 28 are symmetrically installed on both sides of the housing 1, and mounting plates 29 are fixedly connected to ends of the support rods 28 far away from the housing 1, and fixing bolts 30 are symmetrically installed on the mounting plates 29 in a penetrating manner; through the interaction of the fixing bolt 30, the mounting plate 29 and the supporting rod 28, people can conveniently carry out fixed mounting when using, and therefore the use requirements of people can be better met.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, through the interaction of the first winding 5, the second winding 6 and the third winding 7, the principle of an autotransformer is utilized, the pulse number is increased to 12 pulses for rectification and phase shift, the total distortion rate and the voltage pulse coefficient of input current can be effectively reduced, a cross-phase autotransformer connection mode is adopted, the requirements of output voltage and phase angle difference are met through vector synthesis, the purpose of 3-phase change of 6 phases is achieved, the calculation capacity is reduced, the empty load loss of a product is reduced, the efficiency of the whole machine is improved, materials are saved, the volume and the weight of the product are reduced, and the product cost is reduced; meanwhile, the outer layer 20 and the inner layer 21, and the heat insulation layer 22 and the antistatic layer 23 interact with each other, so that the shell 1 can achieve good heat insulation and antistatic effects, and therefore, each part inside the shell 1 can be protected better, and the use requirements of people can be met better.

Through the above detailed description, the person skilled in the art can easily realize the present invention. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.

Claims

1. The 12-pulse self-coupling rectifier transformer is characterized by comprising a shell (1) and a frame (2), wherein the frame (2) is located inside the shell (1), the frame (2) comprises iron yokes (3) symmetrically arranged, three iron core columns (4) are uniformly installed between the iron yokes (3), and winding I (5), winding II (6) and winding III (7) are respectively wound on the iron core columns (4), the winding I (5) comprises a primary winding A (8) and a secondary winding I (9), the secondary winding I (9) comprises a secondary sub-winding a '(10) and a secondary sub-winding a (11), the secondary sub-winding a' (10) and the secondary sub-winding a (11) are respectively installed on the upper half part and the lower half part of the primary winding A (8), and the winding II (6) comprises a primary winding B (12) and a secondary winding II (13), the secondary winding II (13) comprises a secondary sub-winding b' (14) and a secondary sub-winding b (15), and the secondary sub-winding B' (14) and the secondary sub-winding B (15) are respectively installed at the upper half portion and the lower half portion of the primary winding B (12), the winding three (7) comprises a primary winding C (16) and a secondary winding three (17), the secondary winding three (17) comprises a secondary sub-winding c' (18) and a secondary sub-winding c (19), and the secondary sub-winding C' (18) and the secondary sub-winding C (19) are respectively installed at the upper half portion and the lower half portion of the primary winding C (16), the shell (1) comprises an outer layer (20) and an inner layer (21), a heat insulation layer (22) is arranged on one side of the outer layer (20) close to the inner layer (21), and an anti-static layer (23) is arranged on one side, close to the inner layer (21), of the heat insulation layer (22).

2. A 12-pulse autotransformer as claimed in claim 1 wherein said frame (2) is fitted at each of its outer corners with L-type blocks (24), and said L-type blocks (24) are fitted at each of their inner walls with a fixing block (25).

3. A 12-pulse autotransformer as claimed in claim 1 wherein said yokes (3) are symmetrically arranged in two, and said core legs (4) are perpendicular to said yokes (3) and are arranged in parallel with each other in three.

4. A 12-pulse self-coupled rectifier transformer according to claim 1, wherein the windings one (5) and two (6) and three (7) are in a triangular structure, and the phase shift angle of the output between two adjacent windings is 30 °.

5. A 12-pulse self-coupled rectifier transformer according to claim 1, wherein the secondary sub-winding a ' (10) and the secondary sub-winding a (11) are respectively mounted on the upper half portion and the lower half portion of the primary winding a (8) in a double-split structure, the secondary sub-winding B ' (14) and the secondary sub-winding B (15) are respectively mounted on the upper half portion and the lower half portion of the primary winding B (12) in a double-split structure, and the secondary sub-winding C ' (18) and the secondary sub-winding C (19) are respectively mounted on the upper half portion and the lower half portion of the primary winding C (16) in a double-split structure.

6. The 12-pulse self-coupling rectifier transformer according to claim 1, wherein a hollow structure (26) is arranged between the inner layer (21) and the antistatic layer (23), a plurality of connecting blocks (27) are installed inside the hollow structure (26), and the inner layer (21) and the antistatic layer (23) are fixedly connected through the plurality of connecting blocks (27).

7. The 12-pulse autotransformer according to claim 1, wherein support rods (28) are symmetrically installed on both sides of the outer shell (1), and a mounting plate (29) is fixedly connected to one end of each support rod (28) far away from the outer shell (1), and fixing bolts (30) are symmetrically installed on the mounting plate (29) in a penetrating manner.