TWM505045U - Fast assembly type transformer and asymmetric dual cutting type iron core structure thereof - Google Patents

Description

Quick assembly transformer and its asymmetric double-cut type coil core structure

The present invention relates to a power transformer and its core, and more particularly to a quick assembly transformer and an asymmetric double-cut type coil core structure.

In the power system, the transformer is an indispensable important equipment for power transmission and conversion. It mainly transfers energy from one circuit to another through electromagnetic effect, and the components do not move relative to each other. The main uses of transformers are voltage conversion, impedance change, and separation circuits. In power transportation, transformers can convert electrical energy into high-voltage, low-current, and then convert back, thus greatly reducing the transmission of electrical energy. The loss in the process makes the distance of electric energy travel farther.

Referring to FIG. 1 , a conventional wound core type transformer is usually provided with a single-cut type coil core or a symmetric double-cut type coil core structure 1 ′, wherein the symmetric double-cut type coil core structure 1 ′ is structurally symmetrical to each other. The upper core group 10' and the lower core group 20' are composed, wherein the upper and lower core groups 10', 20' each comprise an outer core and at least two inner cores (not shown) juxtaposed in the outer core. And a coil 30' is wound on the symmetric double-cut type coil core structure 1', and the coil 30' has two or more windings, and when one of the windings is supplied with an alternating current power source, the magnetic flux can be transmitted through the core. The induced voltage is induced to the remaining windings.

However, in the assembly of the conventional transformer, the coil 30' is usually disassembled in a horizontal assembly method by a single-cut type coil core or a symmetric double-cut type coil core structure 1', and then inserted into the high and low voltage coils in batches. , resulting in long working hours, and the core can not be completely coated with anti-rust paint and affect the quality and service life of the transformer.

Therefore, how to improve the assembly efficiency of transformers is the key to the breakthrough of production, manufacturing, research and development and other units.

The main purpose of this creation is to provide a quick-assembled transformer and its asymmetric double-cut coil core structure, which is designed to simplify the assembly process of the core and the high and low voltage coils, and to improve the quality of the transformer.

For the above purposes, the present invention adopts the following technical means: an asymmetric double-cut type coil core structure comprising a first core group and a second core group. The first core group includes a first core base and a plurality of first core connecting portions extending and spaced apart from the first core base, and a first cutout portion is formed at an end of each of the core connecting portions; The second core group is coupled to the first core group, and the second core group includes a second core base and a plurality of second cores extending from the second core base and opposite to the first core joints. a connecting portion, and a second cutout portion matching the first cutout portion is formed at an end of each of the second core connecting portions; wherein a distance between each of the first cutout portions and the first core base portion is smaller than a distance from each of the second cutout portions to the base of the second core.

The present invention further provides a quick assembly transformer comprising the above-described asymmetric double-cut type coil core structure and at least one coil structure. The first core group includes a first core base and a plurality of first core connecting portions extending and spaced apart from the first core base, and a first cutout portion is formed at an end of each of the core connecting portions; The second core group is coupled to the first core group, and the second core group includes a second core base and a plurality of second core joints extending from the second core base and spaced apart, and each of the core sets a second cutout portion matching the first cutout portion is formed at an end of the second core connecting portion; wherein a distance of each of the first cutout portions to the first core base portion is smaller than each of the second cutout portions The distance to the base of the second core. The coil structure is disposed between the first core base and the second core base via any of the first cutout portions and the second cutout portion corresponding thereto, and Surrounding the corresponding first core connection portion and the second core connection portion.

The present invention has at least the following effects: the creation is formed by the first core group and the second core group, wherein the distance between each of the first cutout portions to the first core base is smaller than each of the second cutout portions to the second core The design of the distance of the base, that is, the first core group and the second core group are asymmetrical. When assembling the high and low voltage coils, it is not necessary to split the stacked core sheets one by one to insert the high and low voltage coils. Instead, the high and low voltage coils are directly set to the position based on the long core sheet bundle. According to this, the production efficiency of the transformer can be greatly improved.

In addition, the core can be completely coated with anti-rust paint to avoid rust, thereby improving the quality and service life of the transformer.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and description, and are not intended to limit the creation.

(previous technology)

1'‧‧‧Rolled iron core

10’‧‧‧Front frame

20’‧‧‧ inside box

30’‧‧‧ coil

X‧‧‧Cut/bonding

(this creation)

T‧‧‧Fast assembled transformer

1‧‧‧Asymmetric double-cut coil core structure

10‧‧‧First Iron Core Group

11‧‧‧First outer core

10a‧‧‧The base of the first core

111‧‧‧The first outer core joint

10b‧‧‧First core connection

112‧‧‧The first outer core docking section

10c‧‧‧ first incision

1121‧‧‧stepped section difference

12‧‧‧First inner core

121‧‧‧The first inner core joint

122‧‧‧The first inner core docking section

1221‧‧‧Stepped section difference

20‧‧‧Second core group

21‧‧‧Second outer core

20a‧‧‧Second core base

211‧‧‧Second outer core joint

20b‧‧‧Second core connection

212‧‧‧Second outer core docking section

20c‧‧‧second incision

2121‧‧‧Stepped section difference

22‧‧‧Second inner core

221‧‧‧Second inner core joint

222‧‧‧Second inner core docking section

2221‧‧‧Stepped section difference

30‧‧‧ pull board

40‧‧‧Clip pieces

50‧‧‧Working platform

C‧‧‧Coil structure

D1, d2‧‧‧ distance

Figure 1 is a schematic illustration of a conventional transformer.

FIG. 2 is a perspective exploded view showing an aspect of the asymmetric double-cut type winding core structure of the present invention.

FIG. 3 is a schematic perspective view of a three-dimensional combination of an asymmetric double-cut type coil core structure.

Figure 4 is a side elevational view of one aspect of the asymmetric double-cut coil core structure of the present invention.

FIG. 5 is a perspective exploded view of the quick assembled transformer of the present invention.

FIG. 6 is a schematic perspective view of the assembled assembly of the quick-assembled transformer.

Figure 7 is a side elevational view of another aspect of the asymmetric double-cut coil core structure of the present invention.

In view of the fact that the conventional transformer core still has room for improvement in structural design, this creation has developed a novel transformer core. In the following, a preferred embodiment will be described in detail, and the innovative parts and advantages of the present invention will be described in detail in conjunction with the accompanying drawings.

2 to FIG. 4 are schematic structural views of a preferred embodiment of the present invention. The present invention is an asymmetric double-cut type roll core structure 1 mainly for the first core group 10 and the second core group 20 being assembled with each other. to make.

The first core group 10 includes a first core base 10a and a plurality of first core connecting portions 10b. The first core connecting portions 10b are formed by one side of the first core base 10a with respect to one side of the second core group 20, Any two adjacent first core connecting portions 10b have a predetermined spacing (not shown), and the end of each of the first core connecting portions 10b is formed with a first cutout portion 10c by cutting. . It should be understood by those of ordinary skill in the art that the predetermined spacing referred to herein is not particularly limited and can be adjusted depending on the characteristics of the transformer (e.g., load characteristics).

The structure of the second core group 20 is similar to that of the first core group 10, and includes a second core base portion 20a and a plurality of second core joint portions 20b. The second core joint portions 20b are one of the second core base portions 20a. The side extension molding is performed, and corresponds to the first core connecting portions 10b, wherein the end of each of the second core connecting portions 20b is formed with a second notched portion 20c by being cut. It should be noted that the present invention adopts an asymmetric assembly design, that is, the lengths of the first core group 10 and the second core group 20 are different, and each of the second cutout portions 20c to the second core base portion 20a The distance is greater than the distance from each of the first cutout portions 10c to the first core base portion 10a (as shown in FIG. 4).

Referring to FIG. 3 and FIG. 4, in the embodiment, the first core group 10 is composed of a first outer core 11 and a plurality of first inner cores 12, and the first inner cores 12 are accommodated in the first The inner core 11 is adjacent to each other and juxtaposed to each other; and the second core group 20 is a second outer core 21 opposite to the first outer core 11 and a plurality of second inner cores 22 opposite to the first inner cores 12 The second inner cores 22 are disposed on the inner side of the second outer core 21 and are juxtaposed to each other.

Incidentally, the first outer core 11, the first inner core 12, the second outer core 21, and the second inner core 22 may have an appropriate thickness according to a magnetic circuit required for electromagnetic induction, in other words, An outer core 11, a first inner core 12, a second outer core 21, and a second inner core 22 are each a core sheet bundle in which a predetermined number of core sheets are laminated, wherein the core sheet material may be tantalum steel, but The creation is not limited to this, and materials that meet the characteristics of high magnetic permeability, low core loss, high mechanical strength, easy processing, and low cost economy can be applied to this creation.

Furthermore, the first outer core 11 has a slightly U-shaped appearance. Specifically, the first outer core 11 has a first outer core engaging section 111 in the form of a strip and two first outer core engaging sections 111. The first outer core abutting section 112 is bent at two ends, wherein the first outer core abutting section 112 is bent along the outer edge of the juxtaposed first inner core 12, and a stepped step difference 1121 is formed at the end. The first outer core engaging section 111 and the first outer core docking section 112 together define a receiving space (not shown) for providing the first inner core 12. The first inner core 12 is closely arranged in the above-mentioned receiving space, and each of the first inner cores 12 has a slightly U-shaped appearance. Specifically, each of the first inner cores 12 has a long inner first core engaging portion. 121 and the first inner core docking section 122 extending from the two ends of the first inner core engaging section 121, wherein a stepped step 1221 is formed at the end of each of the first inner core abutting sections 122.

Furthermore, in order to increase the mechanical strength and structural stability of the core, the first outer core 11 and the first inner core 12 may be bundled together by a fixed strap (not shown). In this manner, the first inner core engaging section 121 can be coupled to the first outer core engaging section 111 to form the first core base 10a, and the first outer core docking section 112 can be connected to a part of the first inner core docking section 122. To form a part of the first core joint portion 10b, and the other portion of the first inner core docking portion 122 may be in contact with each other to constitute another portion of the first core joint portion 10b. The optimal design is that the first cutout portion 10c includes the stepped step difference 1121 of the first outer core docking section 112 and/or the stepped section difference 1221 of the first inner core docking section 122.

On the other hand, the structure of the second outer core 21 is similar to that of the first outer core 11, and its appearance is also slightly U-shaped. Specifically, the second outer core 21 is a second outer core engaging section 211 in the form of a strip and The second outer core abutting section 212 is formed by bending the two ends of the second outer core engaging section 211, wherein the second outer core abutting section 212 is bent along the outer edge of the juxtaposed second inner core 22, And a stepped step difference 2121 is formed at the end, and the length of the second outer core docking section 212 is longer than the length of the first outer core docking section 112. The second outer core engaging section 211 and the second outer core docking section 212 together define a receiving space (not shown) for providing the second inner core 22.

The second inner core 22 is accommodated in the accommodating space, and each of the second inner cores 22 has a U shape. Specifically, the second inner core 22 is a long inner second core engaging portion 221 and two A second inner core abutting section 222 extending from the two ends of the second inner core engaging section 221 is formed, and a stepped step 2221 is formed at the end of each of the second inner core abutting sections 222.

Similarly, the second outer core 21 and the second inner core 22 can be bundled together by a fixed band (not shown). In this manner, the second inner core engaging portion 221 can be coupled to the second outer core engaging portion 211 to form the second core base portion 20a, and the second outer core docking portion 212 can be coupled to a portion of the second inner core docking portion 222. To form a part of the second core connecting portion 20b, and another portion of the second inner core abutting portion 222 may be in contact with each other to constitute another portion of the second core connecting portion 20b. The optimal design is that the second cutout portion 20c includes a stepped step difference 2121 of the second outer core abutting section 212 and/or a stepped step difference 2221 of the second inner core docking section 222.

The main features of the asymmetric double-cut type coil core structure 1 have been described above, and the fabrication of a quick-assembled transformer using the asymmetric double-cut type coil core structure 1 will be further described below.

Referring to FIG. 5 and FIG. 6, in the embodiment, the rapid assembly transformer T can be manufactured according to the following steps:

Step 1: Applying the anti-rust paint on the second core group 20, and after the coating is completed, the second core group 20 is fixed by the pull plate 30 and the lower clamp member 40, and placed in an upright manner. A working platform 50.

Step 2: directly set at least one coil structure C on the second core group 20, wherein the coil structure C comprises a low voltage coil and a high voltage coil (not shown), and the low voltage coil and the high voltage coil are sequentially surrounded by The second core connection portion 20b of the second core group 20. It should be noted that since the coil structure C can be directly inserted into the second core group 20 via the second cutout portion 20c, it is not necessary to disassemble the core and insert the batch into the high and low voltage coils in comparison with the conventional assembly method. Therefore, the assembly time can be greatly shortened.

Step 3: assembling the first core group 10 (short side core) and the second core group 20 (long side core) from above to form a complete frame body, and a closed core can be formed on the frame body. ring. Preferably, the plurality of first inner cores 12 in the first core group 10 are firstly moved away from the second core group 20 toward the second core group 20 and the plurality of the second core groups 20 The inner cores 22 are connected to each other. When the first inner core 12 and the second inner core 22 are assembled, the first outer core 11 of the first core group 10 is further away from the second core group 20 to approach the second core. The direction of the group 20 is combined with the second outer core 21 of the second core group 20.

Referring to FIG. 3 and FIG. 4, when the first core group 10 and the second core group 20 are assembled, the first cutout portion 10c and the second cutout portion 20c are tightly joined together, wherein the first outer core 11 is stepped. The step difference 1121 is overlapped on the stepped step 2121 of the second outer core 21 to form a single core segment, and the stepped step 1221 of the first inner core 12 is overlapped on the stepped step 2221 of the second inner core 22 to form another A core segment.

Step 4: Combine the upper clamps with the low-voltage copper bars and other related accessories (not shown), thus completing the finished transformer.

Incidentally, although the number of the first and second core connecting portions 10b, 20b is three in the asymmetric double-cut type winding core structure 1 shown in FIGS. 2 to 4, for the other of the embodiment In the embodiment, the number of the first and second core connecting portions 10b, 20b included in the asymmetric double-cut type core structure 1 may be three or more.

For example, referring to FIG. 7, in the asymmetric double-cut type coil core structure 1 shown by the present invention, the number of the first and second core connecting portions 10b, 20b is four, so, FIG. 2 to FIG. 4 The number of first and second core joints 10b, 20b shown is for illustrative purposes only and does not limit the present invention. The number of first and second core joints 10b, 20b is increased by the number of visible windings.

In summary, the present invention has at least the following advantages compared with the conventional transformer and its core: First, the creation is connected to each other through the "first core group and the second core group, wherein each of the first cutout portions to the first The design of the distance of the base of one core is smaller than the distance from each of the second cutout portions to the base of the second core" can greatly improve the production efficiency of the transformer.

According to the above, since the coil sleeve can be directly set based on the long-side iron core when assembling the high- and low-voltage coils, the anti-rust paint can be completely coated on the iron core to avoid rust, thereby improving the quality and use of the transformer. life.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of patent protection of the present invention. Anyone who is familiar with the art of the artist, within the spirit and scope of the creation, the equivalent of the changes and retouching, still fall within the scope of the patent protection of this creation.

1‧‧‧Asymmetric double-cut coil core structure

10‧‧‧First Iron Core Group

10c‧‧‧ first incision

11‧‧‧First outer core

12‧‧‧First inner core

20‧‧‧Second core group

20c‧‧‧second incision

21‧‧‧Second outer core

22‧‧‧Second inner core

Claims (13)

An asymmetric double-cut type roll core structure includes: a first core group including a first core base and a plurality of first core joints extending and spaced apart from the first core base, and each of the cores a first cutout portion is formed at an end of the connecting portion; and a second core group is coupled to the first core group, the second core group includes a second core base portion and a plurality of base portions extending from the second core portion Forming and opposing the second core connecting portion of the first core connecting portions, and each end of the second core connecting portion is formed with a second cutout portion matching the first cutout portion; wherein each The distance from the first cutout portion to the first core base is smaller than the distance from each of the second cutout portions to the second core base portion. The asymmetric double-cut type core structure according to claim 1, wherein the first core group is composed of a first outer core and a plurality of first inner cores, and the first inner cores are accommodated in the first core An inner core of the outer core and adjacent to each other, the second core group is composed of a second outer core opposite to the first outer core and a plurality of second inner cores opposite to the first inner cores, The second inner core is disposed on the inner side of the second outer core and is juxtaposed to each other. The asymmetric double-cut type core structure according to claim 2, wherein the first outer core has a first outer core engaging section and two first ends extending from the two ends of the first outer core engaging section Each of the first inner cores has a first inner core engaging section and two first inner core docking sections extending from the two ends of the first inner core engaging section, and the first outer core is connected The segments are connected to the first inner core engaging segments to form the first core base portion, and the two first outer core docking portions are respectively connected with a portion of the first inner core docking portions to form a part of the first core connections. And the other portions of the first inner core docking sections are connected to each other to form the other portion of the first core joints. The asymmetric double-cut type coil core structure according to claim 3, wherein the second outer The iron core has a second outer core engaging section and two second outer core docking sections extending from the two ends of the second outer core engaging section, each second inner core has a second inner core engaging section and two The second inner core engaging portion of the second inner core engaging portion is bent and extends, and the second outer core engaging portion is connected with the second inner core engaging portions to form the second core base. The two outer core docking sections are respectively connected with a part of the second inner core docking sections to form a part of the second core joints, and the other part of the second inner core docking sections are connected to each other to constitute another part Some second core connections. The asymmetric double-cut type winding core structure according to claim 4, wherein the first outer core docking sections, the first inner core docking sections, the second outer core docking sections, and the second A stepped step is formed at each end of the inner core abutting section, and the stepped sections of the first outer core abutting sections are respectively overlapped on the second outer core docking sections, and the steps of the first inner core docking sections are The segment differences are respectively overlapped on the second inner core docking segments. The asymmetric double-cut type core structure according to claim 2, wherein the first outer core, the second outer core, each of the first inner cores, and each of the second inner cores are a predetermined number The steel sheets are laminated. A quick-assembled transformer comprising: an asymmetric double-cut type coil core structure, comprising: a first core group comprising a first core base and a plurality of firstly formed and spaced apart by the first core base a core connecting portion, and a first cutout portion is formed at an end of each of the core connecting portions; and a second core group is coupled to the first core group, the second core group includes a second core base portion a plurality of second core connecting portions extending from the second core base and opposite to the first core connecting portions, and an end of each of the second core connecting portions is formed to match the first cutout portion a second cutout portion; wherein a distance of each of the first cutout portions to the first core base is less than each a distance from the second cutout portion to the second core base portion; and at least one coil structure is disposed on the first core base portion via the first cutout portion and the second cutout portion corresponding thereto Between the bases of the second cores and surrounding the corresponding first core connection portion and the second core connection portion. The quick-assembled transformer of claim 7, wherein the coil structure has an opening adjacent to the first core base, and the opening is also adjacent to the corresponding first and second cutout portions The joint. The quick-assembled transformer of claim 7, wherein the first core group is composed of a first outer core and a plurality of first inner cores, and the first inner cores are accommodated in the first outer core Inside and juxtaposed next to each other, the second core group is composed of a second outer core opposite to the first outer core and a plurality of second inner cores opposite to the first inner cores, the second inner cores The two sides are disposed on the inner side of the second outer core and are juxtaposed to each other. The quick-assembled transformer of claim 9, wherein the first outer core has a first outer core engaging section and two first outer core docking sections extending from the two ends of the first outer core engaging section Each of the first inner cores has a first inner core engaging section and two first inner core docking sections extending from the two ends of the first inner core engaging section, and the first outer core engaging sections and the first inner core engaging sections The first inner core engaging sections are connected to form the first core base, and the two first outer core docking sections are respectively connected with a part of the first inner core abutting sections to form a part of the first core connecting portions, and another A portion of the first inner core docking sections are connected to each other to form another portion of the first core joints. The quick-assembled transformer of claim 10, wherein the second outer core has a second outer core engaging section and two second outer core docking sections extending from the two ends of the second outer core engaging section Each of the second inner cores has a second inner core engaging section and two second inner core docking sections extending from the two ends of the second inner core engaging section, and the second outer core engaging sections and the second inner core engaging sections Second inner core connection section Connecting to form the second core base portion, the two second outer core docking portions are respectively connected with a part of the second inner core docking portions to form a part of the second core connecting portions, and the second portions of the other portions The inner core docking sections are connected to each other to form the other part of the second core joints. The quick-assembled transformer of claim 11, wherein the first outer core docking sections, the first inner core docking sections, the second outer core docking sections, and the second inner core docking sections are Each of the ends of the first outer cores is overlapped with the stepped segments of the first outer cores, and the stepped segments of the first inner cores are respectively connected to each other. Connected to the second inner core docking sections. The quick-assembled transformer of claim 9, wherein the first outer core, the second outer core, each of the first inner cores, and each of the second inner cores are a predetermined number of silicon steel sheets Made up.