CN205039042U - B drives three -phase magnetic metal powder core reactor of air gap mutually - Google Patents
B drives three -phase magnetic metal powder core reactor of air gap mutually Download PDFInfo
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- CN205039042U CN205039042U CN201520707640.6U CN201520707640U CN205039042U CN 205039042 U CN205039042 U CN 205039042U CN 201520707640 U CN201520707640 U CN 201520707640U CN 205039042 U CN205039042 U CN 205039042U
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Abstract
The utility model provides a B drives three -phase magnetic metal powder core reactor of air gap mutually, including A looks iron core post, B looks iron core post, C looks iron core post, two horizontal yoke cores and respectively the cover as for the coil on each looks iron core post, each looks iron core post connect to the interval in proper order in between two horizontal yoke cores, these two the parallel intervals of horizontal yoke core set up, the cross -sectional area of each looks iron core post equals and adopts the material of the same magnetic inductivity to make, a looks iron core post and the C looks iron core post intrinsic air gap size in equivalent magnetic circuit length is lc1, the intrinsic air gap size of B in equivalent magnetic circuit length is lc2, still set up total equivalent length lc3's extra air gap, lc1=Lc2+Lc3 on the B looks iron core post. The utility model discloses a B looks iron core post to three -phase iron core post sets up pertinent extra air gap, lets the effective air gap of each looks equal, makes the magnetic metal powder core can be applied to the three -phase reactor system, satisfies three -phase reactor's inductance value unbalance rate's <= 4% requirement.
Description
Technical field
The utility model relates to and metal magnetic powder core reactor field, and in particular a kind of B phase drives the three-phase metal magnetic powder core reactor of air gap.
Background technology
Corresponding magnetic material powder mixes with binding agent by metal magnetic powder core usually, by mold pressing, solidification, is made generally in the shape such as annular, bar shaped, be applicable to various inductance, be particularly useful for the inductor etc. of some EMI/RFI filter inductance, some high-frequency low-loss requirement.Owing to mixing namagnetic substance in a large number, be equivalent to air gap to be distributed in magnetic core, magnetic field energy in whole magnetic core, avoids the strong electromagnetic radiation because concentrated air gap produces and high-frequency loss with regard to mapped storage.The remarkable advantages such as metal magnetic powder core also has that temperature is high, property at high and low temperature is stable, permeability is stable, have excellent anti-saturation characteristic and high frequency characteristics, and permeability has good permanent character in very wide frequency ranges.
Single-phase inductance adopts metal magnetic powder core, in the field of businessly uses in enormous quantities already.But for three pole reactor, the normal core structure form used is three-phase three stem stem, gone because metal magnetic powder core is distributed to air gap in magnetic core substantially uniformly, its effective permeability is more much lower than silicon steel.Such as, the normal iron silicon effective permeability used is between 10 μ ~ 100 μ.If use metal magnetic powder core, from the structure of three-phase three stem stem, the length of magnetic path of A, C phase is greater than B phase, and from inductance formula L=(4* π * μ * N*N*A), L is less for/Lc, length of magnetic path Lc longer then inductance value, inversely proportional change.This just means, when its iron core of three-phase three stem stem reactor is according to metal magnetic powder core, so, three-phase electricity sensibility reciprocal will be unequal, corresponding overproof depending on the length of magnetic path deviation ratio of three-phase.Its three-phase electricity sensibility reciprocal balanced ratio even can exceed more than 30% sometimes.So, do not adopt metal magnetic powder core to make the reason of three pole reactor in current industry that Here it is.
The effective common practice in current this area is, if desired uses the metal magnetic powder core inductance of three-phase, is just broken down into three single-phase inductance, uses annular or hollow metal magnetic powder core to make, then uses with three single-phase three pole reactors that connect into.Three-phase is resolved into three single-phase inductance when making, product cost, volume, loss, production hour etc. all can corresponding increase more, be unfavorable for the energy-saving and cost-reducing theory that the miniaturization of product, low cost, low-loss and country advocate.
Therefore, prior art existing defects, needs improvement badly.
Utility model content
The technical problems to be solved in the utility model is the defect for prior art, provides the three-phase metal magnetic powder core reactor that a kind of B phase opens air gap.
The technological means that the utility model technical solution problem adopts is: provide the three-phase metal magnetic powder core reactor that a kind of B phase opens air gap, comprise A phase iron core column, B phase iron core column, C phase iron core column, two horizontal yoke cores and overlap as the coil in described A phase iron core column, B phase iron core column, C phase iron core column respectively, described A phase iron core column, B phase iron core column, C phase iron core column successively compartment of terrain are connected between described two horizontal yoke cores, and these two horizontal yoke core parallel interval are arranged;
The cross-sectional area of described A phase iron core column, described B phase iron core column and described C phase iron core column is equal and adopt the material of identical permeability to make, described A phase and C phase in equivalent magnetic circuit length intrinsic size of gaps be Lc1, the intrinsic size of gaps of described B phase in equivalent magnetic circuit length is Lc2, described B phase iron core column also offers the extra air-gap of total equivalent length Lc3, Lc1=Lc2+Lc3.
The B phase provided at the utility model is opened in the three-phase metal magnetic powder core reactor of air gap, and described A phase iron core column, B phase iron core column, C phase iron core column comprise a powder core respectively or many core combination become stem stem.
The B phase provided at the utility model is opened in the three-phase metal magnetic powder core reactor of air gap, and described A phase iron core column, B phase iron core column, C phase iron core column comprise many powder cores coaxially arranged respectively, and these many powder cores adopt epoxy glue to fix.
The B phase provided at the utility model is opened in the three-phase metal magnetic powder core reactor of air gap, and described powder core is the one in Fe-Si-Al magnetic core, ferrosilicon powder core, iron tantnickel powder core, high magnetic flux iron nickel powder core and iron nickel molybdenum powder core.
The B phase provided at the utility model is opened in the three-phase metal magnetic powder core reactor of air gap, and described horizontal yoke core is rectangular-shaped.
The B phase provided at the utility model is opened in the three-phase metal magnetic powder core reactor of air gap, and described extra air-gap comprises one or more air gap.
The three-phase metal magnetic powder core reactor that the B phase implemented in the utility model opens air gap has following beneficial effect:
The utility model adopts and arranges appropriate extra air-gap to the B phase iron core column of tri-phase iron core post, makes the effective air gap of each phase equal, makes metal magnetic powder core can be applied to three-phase reactor system, meet the requirement of inductance value unbalance factor≤4% of three-phase reactor.The utility model has also filled up the blank that industry powder core can not be used for three-phase system, by using in the industry at present three to be single-phasely replaced by a three-phase product, saving product cost, reduce small product size and weight, improve product work efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation that B phase in the utility model one preferred embodiment drives the three-phase metal magnetic powder core reactor of air gap.
Fig. 2 is the partial structurtes schematic diagram that B phase in the utility model drives the three-phase metal magnetic powder core reactor of air gap.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, also can make a lot of form, these all belong within protection of the present utility model.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in specification of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Fig. 1 a kind of B phase shown in the utility model one preferred embodiment drives the three-phase metal magnetic powder core reactor of air gap, comprise with reference to Fig. 2 the three-phase metal magnetic powder core reactor A phase iron core column 200a that this B phase opens air gap simultaneously, B phase iron core column 200b, C phase iron core column 200c, two horizontal yoke cores 100 and overlap as described A phase iron core column 200a respectively, B phase iron core column 200b, coil 300 on C phase iron core column 200c, described A phase iron core column 200a, B phase iron core column 200b, C phase iron core column 200c successively compartment of terrain is connected between described two horizontal yoke cores 100, these two horizontal yoke core 100 parallel interval are arranged.
The cross-sectional area of described A phase iron core column 200a, described B phase iron core column 200b and described C phase iron core column 200c is equal and adopt the material of identical permeability to make, described A phase iron core column and C phase iron core column in equivalent magnetic circuit length intrinsic size of gaps be Lc1, the intrinsic size of gaps of described B phase iron core column in equivalent magnetic circuit length is Lc2, because of Lc1 > Lc2, Gu also offer the extra air-gap of total equivalent length Lc3 in described B phase iron core column, make Lc1=Lc2+Lc3.This intrinsic air gap refer to make each phase owing to adopting metal magnetic powder core equivalent magnetic circuit length in equally distributed air gap.
It adopts the extra air-gap 400 B phase iron core column 200b of tri-phase iron core post being arranged to appropriate length, makes the effective air gap of each phase equal, makes metal magnetic powder core can be applied to three-phase reactor system, meets the requirement of inductance value unbalance factor≤4% of three-phase reactor.
Particularly, described A phase iron core column 200a, B phase iron core column 200b, C phase iron core column 200c only include a powder core respectively and form or adopt many powder cores to combine.Certainly, it is not limited to this, and described A phase iron core column 200a, B phase iron core column 200b, C phase iron core column 200c comprise many powder cores coaxially arranged respectively, and these many powder cores adopt epoxy glue to fix.In the present embodiment, described powder core is the one in Fe-Si-Al magnetic core, ferrosilicon powder core, iron tantnickel powder core, high magnetic flux iron nickel powder core and iron nickel molybdenum powder core, can certainly be the material of other function admirables.Described horizontal yoke core 100 is in rectangular-shaped.
In the present embodiment, it is the air gap of Lc3 that this extra air-gap 400 only comprises a length, and certainly, it can also comprise many equivalent total lengths is the air gap of Lc3.
The utility model adopts the extra air-gap 400 B phase iron core column 200b of tri-phase iron core post being arranged to appropriate length, make the effective air gap of each phase equal, make metal magnetic powder core can be applied to three-phase reactor system, meet the requirement of inductance value unbalance factor≤4% of three-phase reactor.The utility model has filled up the blank that industry powder core can not be used for three-phase system, by using in the industry at present three to be single-phasely replaced by a three-phase product, saving product cost, reduce small product size and weight, improve product work efficiency.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. a B phase drives the three-phase metal magnetic powder core reactor of air gap, comprise A phase iron core column, B phase iron core column, C phase iron core column, two horizontal yoke cores and overlap as the coil in described A phase iron core column, B phase iron core column, C phase iron core column respectively, described A phase iron core column, B phase iron core column, C phase iron core column successively compartment of terrain are connected between described two horizontal yoke cores, and these two horizontal yoke core parallel interval are arranged; The cross-sectional area of described A phase iron core column, described B phase iron core column and described C phase iron core column is equal and adopt the material of identical permeability to make, it is characterized in that, described A phase and C phase in equivalent magnetic circuit length intrinsic size of gaps be Lc1, the intrinsic size of gaps of described B phase in equivalent magnetic circuit length is Lc2, described B phase iron core column also offers the extra air-gap of total equivalent length Lc3, make Lc1=Lc2+Lc3.
2. B phase according to claim 1 drives the three-phase metal magnetic powder core reactor of air gap, it is characterized in that, described A phase iron core column, B phase iron core column, C phase iron core column become stem stem by a powder core or many core combination respectively.
3. B phase according to claim 1 drives the three-phase metal magnetic powder core reactor of air gap, it is characterized in that, described A phase iron core column, B phase iron core column, C phase iron core column comprise many powder cores coaxially arranged respectively, and these many powder cores adopt epoxy glue to fix.
4. the B phase according to Claims 2 or 3 drives the three-phase metal magnetic powder core reactor of air gap, it is characterized in that, described powder core is the one in Fe-Si-Al magnetic core, ferrosilicon powder core, iron tantnickel powder core, high magnetic flux iron nickel powder core and iron nickel molybdenum powder core.
5. the B phase according to Claims 2 or 3 drives the three-phase metal magnetic powder core reactor of air gap, it is characterized in that, described horizontal yoke core is rectangular-shaped.
6. B phase according to claim 1 drives the three-phase metal magnetic powder core reactor of air gap, and it is characterized in that, described extra air-gap comprises one or more air gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520707640.6U CN205039042U (en) | 2015-09-14 | 2015-09-14 | B drives three -phase magnetic metal powder core reactor of air gap mutually |
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| CN201520707640.6U CN205039042U (en) | 2015-09-14 | 2015-09-14 | B drives three -phase magnetic metal powder core reactor of air gap mutually |
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| CN205039042U true CN205039042U (en) | 2016-02-17 |
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| CN201520707640.6U Expired - Fee Related CN205039042U (en) | 2015-09-14 | 2015-09-14 | B drives three -phase magnetic metal powder core reactor of air gap mutually |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-09-14 CN CN201520707640.6U patent/CN205039042U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20170914 |