CN220232905U - Magnetic shielding air-core reactor - Google Patents
Magnetic shielding air-core reactor Download PDFInfo
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- CN220232905U CN220232905U CN202321438270.1U CN202321438270U CN220232905U CN 220232905 U CN220232905 U CN 220232905U CN 202321438270 U CN202321438270 U CN 202321438270U CN 220232905 U CN220232905 U CN 220232905U
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- air
- magnetic shielding
- core
- core reactor
- magnetic
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- 238000001816 cooling Methods 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 238000010125 resin casting Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a magnetic shielding air-core reactor, which comprises a magnetic shielding and an air-core coil; the magnetic shield has an inner cavity; the hollow coil is fixedly connected in the magnetic shielding inner cavity; the hollow coil is fixedly connected in the inner cavity of the magnetic shielding, so that the magnetic leakage and the interference of the magnetic leakage on the periphery are reduced; the magnetic shielding air-core reactor has wide application places, can be used in high-frequency topology, alternating current circuits and direct current circuits, and can avoid generating noise of the iron core reactor and a large amount of heat generated by the iron core of the reactor, especially in places with heavy high-frequency resonance quantity; meanwhile, the magnetic leakage influence caused by the air core reactor is avoided.
Description
Technical Field
The utility model relates to the technical field of air-core reactors, in particular to a magnetic shielding air-core reactor.
Background
With the development of power electronic technology, new technology and new topology are continuously developed, the working frequency of power supply equipment is higher and higher, the requirements on the power quality are also higher and higher, and the reactors in application places such as harmonic wave treatment, power factor compensation, LC\LCL filtering and the like are also widely used. In certain specific places, the requirements on the noise of the reactor are extremely high, and even the requirements on the mute reactor are put forward, at the moment, the air-core reactor is reasonably selected, the air-core reactor does not generate electromagnetic noise, and at the same time, in the places with heavy high-frequency resonance parts, the heat trouble caused by the reactor iron core is avoided; however, the air-core reactor has a large volume, and meanwhile, the air-core reactor also has large leakage magnetic flux, so that serious problems of interference to surrounding devices, heating of structural members and the like can occur.
Disclosure of Invention
In view of the above, the present utility model provides a magnetic shielding air-core reactor, which aims to solve the above technical problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a magnetic shielding air-core reactor comprises a magnetic shielding and an air-core coil;
the magnetic shield has an inner cavity;
the hollow coil is fixedly connected in the magnetic shielding inner cavity.
According to the technical scheme, the hollow coil is fixedly connected in the inner cavity of the magnetic shielding, so that the magnetic leakage and the interference of the magnetic leakage on the periphery are reduced; the magnetic shielding air-core reactor has wide application places, can be used in high-frequency topology, alternating current circuits and direct current circuits, and can avoid generating noise of the iron core reactor and a large amount of heat generated by the iron core of the reactor, especially in places with heavy high-frequency resonance quantity; meanwhile, the magnetic leakage influence caused by the air core reactor is avoided.
Preferably, the magnetic shield has a rectangular parallelepiped structure having two open faces. Therefore, the structure design is simple, convenient and reasonable, and the hollow coil is conveniently connected in the magnetic shielding inner cavity.
Preferably, the magnetic shielding is formed by splicing 30QG120 strips of oriented silicon steel sheets, and the spliced part is welded by argon arc welding. Therefore, mechanical vibration and noise are effectively reduced.
Preferably, the hollow coil is formed by winding a hollow copper tube, and the hollow copper tube is subjected to inter-turn insulation treatment by adopting a polyimide film.
Preferably, the hollow coil is connected with a circulating cooling device. Therefore, the hollow coil is wound by adopting a hollow copper pipe, and the hollow copper pipe is naturally cooled without adopting an additional cooling mode when the hollow copper pipe is under small load or rated load; when overload operation occurs or long-term operation is performed under heavy load, the hollow coil is connected with a circulating cooling device, a liquid cooling mode can be selected, a large amount of heat is taken away in the hollow copper pipe through circulating cooling liquid, the purpose of cooling is achieved, and the overload capacity of the product is super strong.
Preferably, the hollow coil is encapsulated into a whole by adopting an epoxy resin casting process. Thereby, mechanical strength is improved, and the dielectric breakdown voltage level is improved.
Compared with the prior art, the magnetic shielding air-core reactor has the following beneficial effects:
the magnetic shielding air-core reactor has wide application places, can be used in high-frequency topology, alternating current circuits and direct current circuits, and particularly can avoid generating noise of an iron core reactor and a large amount of heat generated by an iron core of the reactor in places with heavy high-frequency resonance parts; meanwhile, the magnetic leakage influence caused by the air core reactor is avoided.
The magnetic shielding air-core reactor provided by the utility model has the advantages that the air-core coil is wound by adopting the hollow copper pipe, and a cooling mode is not required to be additionally adopted when the air-core coil is under small load or rated load, and the air-core coil can be naturally cooled; when overload operation occurs or long-term operation is performed under heavy load, the hollow coil is connected with a circulating cooling device, a liquid cooling mode can be selected, a large amount of heat is taken away in the hollow copper pipe through circulating cooling liquid, the purpose of cooling is achieved, and the overload capacity of the product is super strong.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the whole structure of a magnetic shielding air-core reactor according to the present utility model;
fig. 2 is a schematic diagram of a magnetic shielding structure of a magnetic shielding air-core reactor according to the present utility model;
wherein:
1. magnetic shielding; 2. an air core coil.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, an embodiment of the utility model discloses a magnetic shielding air-core reactor, which comprises a magnetic shielding 1 and an air-core coil 2;
the magnetic shield 1 has an inner cavity;
the air core coil 2 is fixedly connected in the inner cavity of the magnetic shielding 1. In the embodiment, the air core coil 2 is designed to be fixedly connected in the inner cavity of the magnetic shielding 1, so that magnetic leakage and interference of the magnetic leakage on the periphery are reduced; the magnetic shield 1 has a rectangular parallelepiped structure having two opposite opening faces; the steel is formed by splicing 30QG120 pieces of oriented silicon steel sheets, and the spliced part is welded by argon arc welding; the magnetic shielding device is characterized in that connecting plates are fixed on two opposite opening surfaces of the magnetic shielding 1, connecting holes are formed in the air core coils 2, the connecting holes are located right below the connecting plates, bolts penetrate through the connecting plates and the connecting holes to connect the magnetic shielding 1 and the air core coils 2 through bolts, and the conventional technical means are omitted.
In order to further optimize the technical scheme, the hollow coil 2 is formed by winding a hollow copper tube, and the hollow copper tube is subjected to turn-to-turn insulation treatment by adopting a polyimide film. In this embodiment, the hollow coil 2 is wound with a hollow copper tube, and the hollow copper tube is subjected to inter-turn insulation treatment by a polyimide film before winding.
In order to further optimize the above technical solution, the hollow coil 2 is connected with a circulation cooling device. In the embodiment, the hollow coil 2 is wound by adopting a hollow copper pipe, natural cooling can be selected according to working conditions, and a liquid cooling mode can be selected when overload operation occurs; when the load is small or rated, the natural cooling is realized without adopting an additional cooling mode; when overload operation occurs or long-term operation is performed under heavy load, the hollow coil is connected with a circulating cooling device, a liquid cooling mode can be selected, a large amount of heat is taken away in the hollow copper pipe through circulating cooling liquid, the purpose of cooling is achieved, and the overload capacity of the product is super strong.
In order to further optimize the technical scheme, the hollow coil 2 is packaged into a whole by adopting an epoxy resin casting process. In this embodiment, the hollow coil 2 is encapsulated into a whole by an epoxy resin casting process, so that the mechanical strength is improved, and the insulation and voltage-resistant level is improved.
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. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A magnetic shielding air-core reactor, which is characterized by comprising a magnetic shielding (1) and an air-core coil (2);
the magnetic shield (1) has an inner cavity;
the hollow coil (2) is fixedly connected in the inner cavity of the magnetic shielding (1).
2. A magnetically shielded air-core reactor according to claim 1, wherein the magnetic shield (1) has a rectangular parallelepiped structure having two open faces.
3. The magnetic shielding air-core reactor according to claim 2, wherein the magnetic shielding (1) is formed by splicing 30QG120 strips of oriented silicon steel sheets, and the spliced part is welded by argon arc welding.
4. The magnetic shielding air-core reactor according to claim 1, wherein the air-core coil (2) is formed by winding a hollow copper tube, and the hollow copper tube is subjected to inter-turn insulation treatment by adopting a polyimide film.
5. A magnetically shielded air-core reactor according to claim 4, characterized in that the air-core coil (2) is connected with a circulation cooling device.
6. A magnetically shielded air-core reactor according to claim 4, characterized in that the air-core coil (2) is encapsulated as one piece by an epoxy resin casting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321438270.1U CN220232905U (en) | 2023-06-07 | 2023-06-07 | Magnetic shielding air-core reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321438270.1U CN220232905U (en) | 2023-06-07 | 2023-06-07 | Magnetic shielding air-core reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220232905U true CN220232905U (en) | 2023-12-22 |
Family
ID=89179928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321438270.1U Active CN220232905U (en) | 2023-06-07 | 2023-06-07 | Magnetic shielding air-core reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220232905U (en) |
-
2023
- 2023-06-07 CN CN202321438270.1U patent/CN220232905U/en active Active
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