CN204229994U - The powder core core of reactor of air-gap-free - Google Patents
The powder core core of reactor of air-gap-free Download PDFInfo
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- CN204229994U CN204229994U CN201420662707.4U CN201420662707U CN204229994U CN 204229994 U CN204229994 U CN 204229994U CN 201420662707 U CN201420662707 U CN 201420662707U CN 204229994 U CN204229994 U CN 204229994U
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Abstract
The utility model discloses a kind of powder core core of reactor of air-gap-free, it comprises: upper yoke; Lower yoke; Multiple iron core column, the upper end of described iron core column is connected with upper yoke, and the lower end of described iron core column is connected with lower yoke, and described upper yoke, lower yoke and iron core column form by multiple magnetic pellet adhesive curing.The utility model not only can realize the basic demand of inductance value, significantly reduces core loss and the noise of reactor, and owing to eliminating stem stem air gap, simplifies production technology, greatly reduce workload.
Description
Technical field
The utility model relates to a kind of powder core core of reactor of air-gap-free, belongs to transformer technology field.
Background technology
At present, the core structure of traditional reactor with T-shaped core, its stem stem is handed over every forming by some discuses and air gap plate, and this structure is cut off by air gap due to iron core column, will produce corresponding stray field, thus produce extra loss at air gap place.Simultaneously, because there is air gap to exist, under the effect of alternation fundamental current and higher harmonic current, between the discus of iron core column, there is alternation attraction, add the magnetostriction that iron core silicon-steel sheet is intrinsic in alternating magnetic field, core of reactor noise will be caused much larger than same specification transformer.
Summary of the invention
Technical problem to be solved in the utility model is the defect overcoming prior art, a kind of powder core core of reactor of air-gap-free is provided, it not only can realize the basic demand of inductance value, the core loss of remarkable reduction reactor and noise, and owing to eliminating stem stem air gap, simplify production technology, greatly reduce workload.
The utility model solves the problems of the technologies described above the technical scheme taked: a kind of powder core core of reactor of air-gap-free, and it comprises:
Upper yoke;
Lower yoke;
Multiple iron core column, the upper end of described iron core column is connected with upper yoke, and the lower end of described iron core column is connected with lower yoke, and described upper yoke, lower yoke and iron core column form by multiple magnetic pellet adhesive curing.
Further, upper yoke and lower yoke parallel.
Further provide a kind of concrete structure of single-phase core structure, iron core column is two, and becomes and column-shaped arrangement architecture, and have interval between two iron core column, described upper yoke, lower yoke and two iron core column form single-phase core structure.
Further provide a kind of concrete structure of tri-phase iron core structure, described iron core column is three, and becomes and column-shaped arrangement architecture, has interval between adjacent iron core column, described upper yoke, lower yoke and three iron core column composition tri-phase iron core structures.
After have employed technique scheme, powder core core of reactor of the present utility model can realize the basic demand of inductance value, and significantly reduces core loss and the noise of reactor; Structurally, owing to eliminating stem stem air gap, simplify production technology, greatly reduce workload.
Accompanying drawing explanation
Fig. 1 is the structural representation of the three-phase structure of the powder core core of reactor of air-gap-free of the present utility model;
Fig. 2 is the structural representation of the phase structure of the powder core core of reactor of air-gap-free of the present utility model;
Fig. 3 is the structural representation of multiple magnetic pellet adhesive curing of the present utility model.
Embodiment
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail.
As shown in Figures 1 to 3, a kind of powder core core of reactor of air-gap-free, it comprises:
Upper yoke 1;
Lower yoke 2;
Multiple iron core column 3, the upper end of iron core column 3 is connected with upper yoke 1, and the lower end of described iron core column 3 is connected with lower yoke 2, and upper yoke 1, lower yoke 2 and iron core column 3 form by multiple magnetic pellet 4 adhesive curing.
As shown in Figure 1, upper yoke 1 and lower yoke 2 parallel.
As shown in Figure 1, iron core column 3 is three, and is and column-shaped arrangement architecture, and have interval between adjacent iron core column 3, described upper yoke 1, lower yoke 2 and three iron core column 3 form tri-phase iron core structure.
As shown in Figure 2, iron core column 3 is two, and is and column-shaped arrangement architecture, and have interval between two iron core column 3, upper yoke 1, lower yoke 2 and two iron core column 3 form single-phase core structure.But the quantity of iron core column 3 is not limited to two or three.
Operation principle of the present utility model is as follows:
Single inductance computing formula in reactor is as follows:
A
L＝4π×10
-9×Ae×μr/le
Wherein: A
lfor single turn inductors amount, Ae is magnetic core effective cross-section, and μ r is magnetic core relative permeability, and le is equivalent magnetic circuit length.
As can be seen from above formula, the single turn inductors value of magnetic circuit shown in the utility model depends on magnetic core effective cross-section, magnetic core relative permeability, equivalent magnetic circuit length, the utility model regulates the single turn inductors amount of reactor by the adjustment net sectional area of powder core and the relative permeability of core material as can be seen here, but not change inductance value by adjustment air gap, thus the basic demand of inductance value can be realized, and significantly reduce core loss and the noise of reactor; Structurally, owing to eliminating stem stem air gap, simplify production technology, greatly reduce workload.
Powder core in magnetic pellet 4 of the present utility model is the powder be made up of ferrous alloy material, mixes a kind of soft magnetic material of suppressing and then carrying out high-temperature process through surface insulation is coated with inorganic bond.There is uniform air gap distribution characteristics in powder core, have excellent magnetic characteristic, low magnetic hysteresis and low eddy current loss.
Above-described specific embodiment; technical problem, technical scheme and beneficial effect that the utility model solves are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. a powder core core of reactor for air-gap-free, it is characterized in that, it comprises:
Upper yoke (1);
Lower yoke (2);
Multiple iron core column (3), the upper end of described iron core column (3) is connected with upper yoke (1), the lower end of described iron core column (3) is connected with lower yoke (2), and described upper yoke (1), lower yoke (2) and iron core column (3) form by multiple magnetic pellet (4) adhesive curing.
2. the powder core core of reactor of air-gap-free according to claim 1, is characterized in that: described upper yoke (1) and lower yoke (2) parallel.
3. the powder core core of reactor of air-gap-free according to claim 1 and 2, it is characterized in that: described iron core column (3) is two, and be and column-shaped arrangement architecture, have interval between two iron core column (3), described upper yoke (1), lower yoke (2) and two iron core column (3) form single-phase core structure.
4. the powder core core of reactor of air-gap-free according to claim 1 and 2, it is characterized in that: described iron core column (3) is three, and be and column-shaped arrangement architecture, between adjacent iron core column (3), there is interval, described upper yoke (1), lower yoke (2) and three iron core column (3) composition tri-phase iron core structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420662707.4U CN204229994U (en) | 2014-11-05 | 2014-11-05 | The powder core core of reactor of air-gap-free |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420662707.4U CN204229994U (en) | 2014-11-05 | 2014-11-05 | The powder core core of reactor of air-gap-free |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204229994U true CN204229994U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420662707.4U Expired - Fee Related CN204229994U (en) | 2014-11-05 | 2014-11-05 | The powder core core of reactor of air-gap-free |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140004A (en) * | 2015-09-14 | 2015-12-09 | 广东新昇电业科技股份有限公司 | Three-phase metal magnetic powder core reactor for improving magnetic permeability of phase A and phase C |
| CN105140005A (en) * | 2015-09-14 | 2015-12-09 | 广东新昇电业科技股份有限公司 | Three-phase metal magnetic powder core electric reactor with air gap formed in phase B |
| CN106229129A (en) * | 2016-08-29 | 2016-12-14 | 苏州腾冉电气设备股份有限公司 | A kind of novel soft magnetism high power three-phase mutual reactor |
| CN108028120A (en) * | 2015-07-10 | 2018-05-11 | 詹姆斯·米尔萨普 | Magnetic core and choke coil or transformer with the magnetic core |
| CN109716459A (en) * | 2016-09-21 | 2019-05-03 | 株式会社自动网络技术研究所 | Reactor and reactor magnetic core |
| CN110024059A (en) * | 2016-09-30 | 2019-07-16 | 艾普伦 | For cutting the semiconductor substrate of stacked transformer and including the transformer of the semiconductor substrate |
-
2014
- 2014-11-05 CN CN201420662707.4U patent/CN204229994U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108028120A (en) * | 2015-07-10 | 2018-05-11 | 詹姆斯·米尔萨普 | Magnetic core and choke coil or transformer with the magnetic core |
| CN105140004A (en) * | 2015-09-14 | 2015-12-09 | 广东新昇电业科技股份有限公司 | Three-phase metal magnetic powder core reactor for improving magnetic permeability of phase A and phase C |
| CN105140005A (en) * | 2015-09-14 | 2015-12-09 | 广东新昇电业科技股份有限公司 | Three-phase metal magnetic powder core electric reactor with air gap formed in phase B |
| CN105140004B (en) * | 2015-09-14 | 2017-12-26 | 广东新昇电业科技股份有限公司 | Improve the three-phase metal magnetic powder core reactor of AC phase permeabilities |
| CN106229129A (en) * | 2016-08-29 | 2016-12-14 | 苏州腾冉电气设备股份有限公司 | A kind of novel soft magnetism high power three-phase mutual reactor |
| CN109716459A (en) * | 2016-09-21 | 2019-05-03 | 株式会社自动网络技术研究所 | Reactor and reactor magnetic core |
| CN110024059A (en) * | 2016-09-30 | 2019-07-16 | 艾普伦 | For cutting the semiconductor substrate of stacked transformer and including the transformer of the semiconductor substrate |
| CN110024059B (en) * | 2016-09-30 | 2021-07-06 | 艾普伦 | Transformer core for cutting stacked transformer and transformer including the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20171105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |