CN117854891A - Magnetic voltage-regulating transformer with conjugated oblique seam new iron core structure - Google Patents
Magnetic voltage-regulating transformer with conjugated oblique seam new iron core structure Download PDFInfo
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- CN117854891A CN117854891A CN202410265035.1A CN202410265035A CN117854891A CN 117854891 A CN117854891 A CN 117854891A CN 202410265035 A CN202410265035 A CN 202410265035A CN 117854891 A CN117854891 A CN 117854891A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 4
- 230000004907 flux Effects 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The invention provides a magnetic voltage-regulating transformer with a novel conjugated oblique joint iron core structure, which comprises: an iron core limb and a transverse conjugated iron core limb; the iron core column is of a rectangular structure; each iron core column of the rectangular structure is overlapped with the adjacent iron core column in a 45-degree inclined seam overlapping mode; the transverse conjugated iron core columns are arranged on two opposite sides of the rectangular structure; the transverse conjugated iron core column divides the iron core column into an upper magnetic circuit, a lower magnetic circuit and a common magnetic circuit of the upper magnetic circuit and the lower magnetic circuit; the upper magnetic circuit is provided with a control coil, and coil groups are distributed in the vertical direction of the core column of the iron core. The invention adopts 45-degree oblique joint lap joint, the magnetic performance is obviously improved compared with a direct joint, the leakage magnetic flux is greatly reduced, the magnetic flux density is greatly increased under the condition of the same iron core sectional area, and the iron core weight is reduced. This novel simple structure, economize the material, be applicable to the transformer that needs the voltage regulation in a large scale.
Description
Technical Field
The invention relates to the field of transformers, in particular to a magnetic voltage-regulating transformer with a novel iron core structure and a conjugated oblique joint.
Background
The magnetic voltage regulator is a novel voltage regulating transformer without mechanical transmission and contact, has no voltage level difference from small to large or from large to small, and can carry out smooth stepless voltage regulation with load. The voltage regulation function is controlled by direct current excitation, can be controlled by open loop and closed loop according to different signals, and is a new executive component in a control system. The high-efficiency energy-saving high-automation degree furnace is widely applied to industrial electric furnaces such as salt bath furnaces, vacuum furnaces, electroslag remelting furnaces, sintering furnaces, single crystal furnaces, polycrystal furnaces, resistance furnaces, electric melting furnaces and the like, electroplating, speed regulation and the like, can also be used as a voltage stabilizing and current stabilizing device, and is an ideal voltage regulating power supply of the industrial electric furnaces.
The conventional magnetic voltage regulator iron core is composed of an upper direct seam saturation reactor iron core and a lower direct seam transformer iron core, the lap joint adopts a direct seam mode, the reactor iron core stands on the transformer iron core, and a magnetic voltage regulator is formed by fixing and connecting leads, as shown in fig. 1.
The reactor and the transformer are two independent iron cores, more iron core silicon steel sheets, insulating parts, transformer oil and steel materials are consumed, the whole volume is larger, the production and manufacturing cost is high, and more importantly, on one hand, the iron core lap joint adopts 90-degree direct joint lap joint, for the currently adopted cold-rolled oriented silicon steel sheets, the direct joint lap joint is adopted, magnetic flux deviates from the rolling direction, the bigger the lap joint area is, the worse the magnetic property is, the higher the leakage magnetic flux is, the iron core needs to be increased in cross section area for keeping the corresponding magnetic flux density, and the iron core weight is increased; in addition, the upper iron core and the lower iron core are separated, the voltage regulating range is small, and the efficiency is low.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a magnetic voltage-regulating transformer with a novel iron core structure of a conjugate oblique joint.
In order to achieve the above object, the present invention provides the following solutions:
a magnetic voltage regulating transformer with a conjugated oblique joint new iron core structure, comprising: an iron core limb and a transverse conjugated iron core limb;
the iron core column is of a rectangular structure; each iron core column of the rectangular structure is overlapped with the adjacent iron core column in a 45-degree inclined seam overlapping mode; the transverse conjugated iron core columns are arranged on two opposite sides of the rectangular structure; the transverse conjugated iron core column divides the iron core column into an upper magnetic circuit, a lower magnetic circuit and a common magnetic circuit of the upper magnetic circuit and the lower magnetic circuit; the upper magnetic circuit is provided with a control coil, and coil groups are distributed in the vertical direction of the core column of the iron core.
Preferably, the coil group includes a high-voltage coil and a low-voltage coil; the high-voltage coils are distributed on two sides of the upper magnetic circuit, and the low-voltage coils are distributed on two sides of the lower magnetic circuit.
Preferably, the high voltage coil and the low voltage coil have equal electrical turns.
Preferably, the control coil is located inside the high voltage coil.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides a magnetic voltage-regulating transformer with a novel conjugated oblique joint iron core structure, which comprises: an iron core limb and a transverse conjugated iron core limb; the iron core column is of a rectangular structure; each iron core column of the rectangular structure is overlapped with the adjacent iron core column in a 45-degree inclined seam overlapping mode; the transverse conjugated iron core columns are arranged on two opposite sides of the rectangular structure; the transverse conjugated iron core column divides the iron core column into an upper magnetic circuit, a lower magnetic circuit and a common magnetic circuit of the upper magnetic circuit and the lower magnetic circuit; the upper magnetic circuit is provided with a control coil, and coil groups are distributed in the vertical direction of the core column of the iron core. The invention adopts 45-degree oblique joint lap joint, the magnetic performance is obviously improved compared with a direct joint, the leakage magnetic flux is greatly reduced, the magnetic flux density is greatly increased under the condition of the same iron core sectional area, and the iron core weight is reduced. This novel simple structure, economize the material, be applicable to the transformer that needs the voltage regulation in a large scale.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a conventional magnetic voltage regulator core structure in the prior art;
fig. 2 is a schematic diagram of a conjugated oblique seam new iron core structure according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a coil and a magnetic circuit arrangement according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a magnetic voltage-regulating transformer with a novel conjugated oblique joint iron core structure, which adopts 45-degree oblique joint lap joint, has obviously improved magnetic performance compared with a direct joint, greatly reduces leakage magnetic flux, greatly increases magnetic flux density under the condition of the same iron core sectional area, and reduces iron core weight.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1 and 2, the present invention provides a new magnetic transformer with a core structure, which comprises a core limb 1, and is characterized in that: the core limb 1 adopted by the invention is of an integral structure, wherein a transverse conjugated core limb 2 is arranged as a common magnetic circuit, thereby dividing the core limb 1 into an upper magnetic circuit and a lower magnetic circuit. Specifically, the two magnetic circuits include a window (upper window 8) of the upper magnetic circuit and a window (lower window 9) of the lower magnetic circuit. And, the upper window 8 and the lower window 9 are provided with coils on the vertical core columns at both sides. Meanwhile, in order to improve the voltage regulating effect, coils are distributed on the core limb 1.
In terms of the embodiments of the present invention, the coils used include the high-voltage coil 4 and the low-voltage coil 5 in view of effectively improving the working efficiency of the transformer. In particular, the high voltage coils 4 are distributed on both sides of the upper window 8 and the low voltage coils 5 are distributed on both sides of the lower window 9.
Further, in order to achieve stable operation, the low-voltage coil 4 and the high-voltage coil 5 used in the present invention have the same number of electrical turns. Correspondingly, the number of windings of the direct current control winding arranged in the upper window 8 and the lower window 9 is the same.
In combination with the actual use situation of the invention, the conjugate magnetic shunt principle is adopted to change the path of the alternating magnetic flux so as to change the output voltage of the low-voltage coil. Specifically, a high-voltage coil 4 and a low-voltage coil 5 are placed on the upper and lower portions of the core leg vertical column, respectively. A DC control coil 3 is wound on the inner diameter side of the upper high-voltage coil.
Thus, when a voltage is applied to the high-voltage coil 4 and the control coil 3 is not connected to the dc control current, the ac magnetic flux generated in the core leg is shunted by the transverse conjugated core leg 2, and the magnetic flux passes through the path of the magnetic circuit 6 as shown in the figure, and the low-voltage coil 5 is substantially free from magnetic flux coupling, and the output voltage of the low-voltage coil 5 is close to zero. When the direct current control coil 3 is connected with direct current control current, and the current gradually increases to the maximum value, the magnetic flux in the magnetic circuit of the transverse conjugated iron core column 2 gradually tends to be saturated, the path of the magnetic flux changes and flows in the magnetic circuit 7, the coupling between the high-voltage coil 4 and the low-voltage coil 5 is gradually enhanced, the output voltage of the low-voltage coil 5 is gradually increased until the output voltage reaches the maximum value, and the purpose of voltage regulation is achieved.
The beneficial effects of the invention are as follows:
the conjugated iron core column structure can realize a large voltage regulation range, and the output voltage can reach 5-95% of the rated input voltage. Meanwhile, the efficiency is high, and the reaction speed is high. The output voltage and current waveforms are basically sine waves, so that the stability rate is improved. The direct-current control coil is placed on the inner diameter side of the high-voltage coil, and is not placed on the side of the conjugated transverse core column, so that the distance between an upper magnetic circuit and a lower magnetic circuit is saved, and the height of the whole core column of the iron core is reduced; meanwhile, the 45-degree oblique joint is adopted for lap joint, so that the magnetic performance is obviously improved compared with that of a direct joint, the leakage magnetic flux is greatly reduced, the magnetic flux density is greatly increased under the condition of the same iron core sectional area, and the weight of the iron core is reduced. This novel simple structure, economize the material, be applicable to the transformer that needs the voltage regulation in a large scale.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (2)
1. A magnetic voltage regulating transformer with a conjugated oblique joint new iron core structure, which is characterized by comprising: an iron core limb and a transverse conjugated iron core limb;
the iron core column is of a rectangular structure; each iron core column of the rectangular structure is overlapped with the adjacent iron core column in a 45-degree inclined seam overlapping mode; the transverse conjugated iron core columns are arranged on two opposite sides of the rectangular structure; the transverse conjugated iron core column divides the iron core column into an upper magnetic circuit, a lower magnetic circuit and a common magnetic circuit of the upper magnetic circuit and the lower magnetic circuit; the upper magnetic circuit is provided with a control coil, and coil groups are distributed in the vertical direction of the core column of the iron core;
the coil group comprises a high-voltage coil and a low-voltage coil; the high-voltage coils are distributed on two sides of the upper magnetic circuit, and the low-voltage coils are distributed on two sides of the lower magnetic circuit; the control coil is located inside the high-voltage coil.
2. The magnetic transformer of claim 1, wherein the high voltage winding and the low voltage winding have equal numbers of electrical turns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410265035.1A CN117854891A (en) | 2024-03-08 | 2024-03-08 | Magnetic voltage-regulating transformer with conjugated oblique seam new iron core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410265035.1A CN117854891A (en) | 2024-03-08 | 2024-03-08 | Magnetic voltage-regulating transformer with conjugated oblique seam new iron core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117854891A true CN117854891A (en) | 2024-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410265035.1A Pending CN117854891A (en) | 2024-03-08 | 2024-03-08 | Magnetic voltage-regulating transformer with conjugated oblique seam new iron core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117854891A (en) |
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2024
- 2024-03-08 CN CN202410265035.1A patent/CN117854891A/en active Pending
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