CN209388832U - Iron core, phase-shifting rectifier transformer and frequency converter - Google Patents

Abstract

It includes two iron yokes and three stems arranged in parallel that the utility model, which provides a kind of iron core, a kind of phase-shifting rectifier transformer and a kind of frequency converter, the iron core, and described two iron yokes are parallel to each other, and is spaced setting.Three stems are sequentially arranged at intervals, and described two iron yokes are located at the both ends of the stem, and the cross section of the iron yoke is rectangular.The iron core, phase-shifting rectifier transformer and frequency converter of the utility model can control the height of iron core, meet the demand of the limitation iron core height of client, advantageously reduce the height of entire frequency converter.

Description

Iron core, phase-shifting rectifier transformer and frequency converter

Technical field

The utility model relates to converter technology field, especially a kind of iron core, a kind of phase-shifting rectifier transformer and a kind of change Frequency device.

Background technique

Medium-high voltage frequency converter has a wide range of applications in industrial circle, and phase-shifting rectifier transformer is one kind exclusively for mesohigh The device of frequency converter offer poly phase rectification power supply.Iron core is the critical elements of phase-shifting rectifier transformer.Fig. 1 is a kind of existing iron The structural schematic diagram of core, Fig. 2 are the cross section signal of the yoke in yoke, stem and second of the iron yoke of iron core shown in FIG. 1, first Figure, referring to Figure 1 and Fig. 2, existing iron core 100 include two iron yokes 101, first yoke in yoke 102, stem 103 and second 104, the cross section of the yoke 104 in yoke 102, stem 103 and second of iron yoke 101, first is generally circular.There is height limitation Phase-shifting rectifier transformer design in, the structure of existing iron core 100, be unfavorable for entire frequency converter height control.

Utility model content

In view of this, the purpose of this utility model is that proposing a kind of iron core, a kind of phase-shifting rectifier transformer and a kind of change Frequency device can control the height of iron core, meets the demand of the limitation iron core height of client, advantageously reduces the height of entire frequency converter Degree.

The utility model proposes a kind of iron cores comprising two iron yokes and three stems arranged in parallel, described two A iron yoke is parallel to each other, and is spaced setting.Three stems are sequentially arranged at intervals, and described two iron yokes are located at the heart The both ends of column, the cross section of the iron yoke are rectangular.

In a kind of illustrative examples of iron core, the cross section of the iron yoke is rectangle.

In a kind of illustrative examples of iron core, the cross section of the iron yoke is square.

In a kind of illustrative examples of iron core, the iron core is stacked by multiple lamination layers.

In a kind of illustrative examples of iron core, each lamination layer includes upper yoke piece, lower yoke piece and three stems Piece, the upper yoke piece and the lower yoke piece are parallel to each other and are spaced setting, and three stem pieces are parallel to each other and are spaced Setting, the upper yoke piece and the lower yoke piece are located at the both ends of the stem piece.

In a kind of illustrative examples of iron core, the upper yoke piece and the lower yoke piece in same lamination layer Length is different, and of same size, the size of the stem piece in same lamination layer is identical.

In a kind of illustrative examples of iron core, the length difference of the lower yoke piece and the upper yoke piece is equal to two The sum of the width of the stem piece.

The utility model also provides a kind of phase-shifting rectifier transformer comprising any one of the above iron core.

The utility model provides a kind of frequency converter again comprising above-mentioned phase-shifting rectifier transformer.

In the iron core, phase-shifting rectifier transformer and frequency converter of the utility model, three stems of iron core successively row of interval Column, two iron yokes are located at the both ends of stem, the cross section of iron yoke be it is rectangular, cross section is rectangular iron yoke relative to existing Cross section is circular iron yoke in technology, and in the case where guaranteeing the identical situation of iron yoke cross-sectional area, rectangular iron yoke can reduce iron The piece molded dimension of yoke, so that the whole height of iron core is reduced, to meet the demand of the limitation iron core height of client.

Detailed description of the invention

The preferred embodiment of the utility model will be described in detail by referring to accompanying drawing below, make the ordinary skill people of this field Member becomes apparent from the above and other feature and advantage of the utility model, in attached drawing:

Fig. 1 is a kind of structural schematic diagram of existing iron core.

Fig. 2 is the cross-sectional view of the yoke in yoke, stem and second of the iron yoke of iron core shown in FIG. 1, first.

Fig. 3 is the structural schematic diagram of the iron core of an embodiment of the present invention.

Fig. 4 is the cross-sectional view of the iron yoke of iron core shown in Fig. 3.

Fig. 5 is the cross-sectional view of the stem of iron core shown in Fig. 3.

Fig. 6 is the schematic diagram of the minimum lamination layer of iron core shown in Fig. 3.

Fig. 7 is the schematic diagram of the maximum lamination layer of iron core shown in Fig. 3.

In above-mentioned attached drawing, used appended drawing reference is as follows:

The prior art

100 iron cores

101 iron yokes

102 first side yokes

103 stems

104 second side yokes

The utility model

10 iron cores

12 lamination layers

20 iron yokes

22 upper yoke pieces

23 lower yoke pieces

30 stems

32 stem pieces

Specific embodiment

To keep the purpose of this utility model, technical solution and advantage clearer, by the following examples to the utility model It is further described.

Fig. 3 is the structural schematic diagram of the iron core of an embodiment of the present invention, and Fig. 4 is the iron yoke of iron core shown in Fig. 3 Cross-sectional view, refers to Fig. 3 and Fig. 4, and the iron core 10 of the present embodiment includes upper yoke and three hearts arranged in parallel Column 30, two iron yokes 20 are parallel to each other, and are spaced setting；Three stems 30 are sequentially arranged at intervals, and two iron yokes 20 are located at The both ends of stem 30, the cross section of iron yoke 20 are rectangular.

More specifically, in the present embodiment, the cross section of iron yoke 20 is rectangle, but the utility model is not limited, The cross section of iron yoke 20 can be also square, and be set according to actual conditions.Fig. 5 is that the cross section of the stem of iron core shown in Fig. 3 shows It is intended to, refers to Fig. 5, the cross section of stem 30 is generally circular.

Fig. 6 is the schematic diagram of the minimum lamination layer of iron core shown in Fig. 3, and Fig. 7 is the maximum lamination layer of iron core shown in Fig. 3 Schematic diagram, refer to Fig. 6, Fig. 7 and Fig. 1, iron core 10 is stacked by multiple lamination layers 12.Each lamination layer 12 includes upper iron Yoke piece 22, lower yoke piece 23 and three stem pieces 32, upper yoke piece 22 and lower yoke piece 23 are parallel to each other and are spaced setting, and three Stem 30 is parallel to each other and is spaced setting, and upper yoke piece 22 and lower yoke piece 23 are located at the both ends of stem 30.It is same folded Upper yoke piece 22 in lamella 12 is different with the length of lower yoke piece 23, of same size, the stem piece 32 in same lamination layer Size is identical.In figure 6 and figure 7, the length of lower yoke piece 23 is greater than the length of upper yoke piece 22, and lower yoke piece 23 and upper iron The length difference of yoke piece 22 is equal to the sum of the width of two stem pieces 32.

The structure of yoke piece 22 and size are complete in minimum lamination layer 12 shown in fig. 6 and maximum lamination layer 12 shown in Fig. 7 Exactly the same, the width of the stem piece 32 in minimum lamination layer 12 is less than the width of the stem piece 32 in maximum lamination layer 12.Iron core 10 further include multiple intermediate sizes lamination layers, and the width of the stem piece 32 in intermediate sizes lamination layer is greater than in minimum lamination layer 12 Stem piece 32 width, and the width for the stem piece 32 being less than in maximum lamination layer 12.Please also refer to Fig. 5, it is different in Between stem piece 32 in size lamination layer 12 it is of different size, the cross section that all stem pieces 32 are stacked up is i.e. substantially round Shape.Maximum lamination layer 12 is located at the center of iron core 10.

In Fig. 6 and Fig. 7 lamination layer 12,32 flush with each other of stem piece of two sides, intermediate stem in three stem pieces 32 Piece 32 and the stem piece 32 of two sides are staggered at a distance from 20 width of iron yoke.

When stacking multiple lamination layers 12 to form iron core 10, first one first lamination layer 12 is placed on mounting platform, is connect , a second lamination layer 12 is configured in the first lamination layer 12, and the setting direction of second lamination layer 12 and the first lamination layer 12 setting direction is different, and the setting direction of second lamination layer 12 is that the first lamination layer 12 is overturn 180 degree.Then, it then stacks One third lamination layer 12, so analogizes, and after the completion of stacking, all lamination layers 12 are fixed with fastener.

It should be noted that iron core 10 is using without silicon steel sheet and heart type structure form is taken, the piece type of iron yoke 20 includes two kinds, Respectively upper yoke piece 22 and lower yoke piece 23, each lamination of iron yoke 20 and stem 30 are docked, i.e. phase using direct seam Adjacent lamination layer 12 configures direction difference, and directly stitching docking mode can realize at good docking between different in width lamination layer 12 Reason, is conducive to improve the stability of 10 structure of iron core.

In the identical situation in 20 cross section of iron yoke, the use of the iron yoke 20 of square cross section can reduce the entirety of iron core Highly, the energy density of complete machine is improved.

The utility model also provides a kind of phase-shifting rectifier transformer, and the phase-shifting rectifier transformer includes above-mentioned iron core 10。

In addition, the utility model also provides a kind of frequency converter, the frequency converter includes above-mentioned phase-shifting rectifier transformer.

The iron core, phase-shifting rectifier transformer and frequency converter of the utility model at least have the advantage that

1. three stems of iron core are successively spaced in the iron core, phase-shifting rectifier transformer and frequency converter of the utility model Arrangement, two iron yokes are located at the both ends of stem, the cross section of iron yoke be it is rectangular, cross section is rectangular iron yoke relative to existing Having cross section in technology is circular iron yoke, and in the case where guaranteeing the identical situation of iron yoke cross-sectional area, rectangular iron yoke can reduce The piece molded dimension of iron yoke, so that the whole height of iron core is reduced, to meet the demand of the limitation iron core height of client.

2. in the embodiment in the iron core, phase-shifting rectifier transformer and frequency converter of the utility model, iron yoke and stem It is docked by the way of directly stitching, can realize good docking processing in different in width lamination interlayer, be conducive to improve The stability of core structure.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (9)

1. iron core (10) characterized by comprising

Two iron yokes (20), are parallel to each other, and are spaced setting；

Three stems (30) arranged in parallel, wherein three stems (30) are sequentially arranged at intervals, described two iron yokes (20) both ends of the stem (30) are located at, the cross section of the iron yoke (20) is rectangular.

2. iron core (10) as described in claim 1, which is characterized in that the cross section of the iron yoke (20) is rectangle.

3. iron core (10) as described in claim 1, which is characterized in that the cross section of the iron yoke (20) is square.

4. iron core (10) as described in claim 1, which is characterized in that the iron core (10) by multiple lamination layers (12) stack and At.

5. iron core (10) as claimed in claim 4, which is characterized in that each lamination layer (12) include upper yoke piece (22), under Yoke piece (23) and three stem pieces (32), the upper yoke piece (22) and the lower yoke piece (23) are parallel to each other and are spaced and set It sets, three stem pieces (32) are parallel to each other and are spaced setting, the upper yoke piece (22) and the lower yoke piece (23) point Not Wei Yu the stem piece (32) both ends.

6. iron core (10) as claimed in claim 5, which is characterized in that the upper yoke piece (22) in same lamination layer (12) It is different with the length of the lower yoke piece (23), of same size, the size of the stem piece (32) in same lamination layer (12) It is identical.

7. iron core (10) as claimed in claim 6, which is characterized in that the lower yoke piece (23) and the upper yoke piece (22) Length difference be equal to two stem pieces (32) the sum of width.

8. phase-shifting rectifier transformer, which is characterized in that including iron core as claimed in any of claims 1 to 7 in one of claims (10).

9. frequency converter, which is characterized in that including phase-shifting rectifier transformer as claimed in claim 8.