CN203552880U - Magnetic core structure of electric reactor - Google Patents
Magnetic core structure of electric reactor Download PDFInfo
- Publication number
- CN203552880U CN203552880U CN201320726722.6U CN201320726722U CN203552880U CN 203552880 U CN203552880 U CN 203552880U CN 201320726722 U CN201320726722 U CN 201320726722U CN 203552880 U CN203552880 U CN 203552880U
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- Prior art keywords
- iron
- core structure
- core
- iron cores
- reactor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 131
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000013078 crystal Substances 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 7
- 229910000702 sendust Inorganic materials 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000012811 non-conductive material Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 3
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- -1 iron silicon aluminum Chemical compound 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 3
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 2
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002505 iron Chemical class 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
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- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses a magnetic core structure of an electric reactor. The magnetic core structure comprises two first iron cores and two second iron cores. The two first iron cores are made of iron-based nanocrystalline alloy and are in a U shape, a rectangular body is arranged on each first iron core, the two ends of each body are bent to form two symmetric bent sections, and the bent sections are respectively provided with an end face. The second iron cores are made of iron silicon aluminum alloy powder, a column is arranged on each second iron core, and the two ends of each column are respectively provided with an end portion. The two second iron cores and the two first iron cores are assembled with the end portions of the two second iron cores corresponding to the end faces of the two first iron cores, the magnetic core structure, the magnetic core structure is formed by combining different materials, and iron losses and the number of turns of winding coils can be reduced, so that the internal resistance value of the electric reactor is reduced, and copper losses are reduced.
Description
Technical field
The utility model relates to a kind of reactor, espespecially a kind of magnetic core structure-improved for the reactor in AC power.
Background technology
Reactor is also inductor, reactance is divided into induction reactance and capacitive reactance, relatively the classification of science is that impedor (inductor) and capacitive reactance device (capacitor) are referred to as reactor, but because first there has been inductor in the past, and by appellation reactor, so the said capacitor of people is exactly capacitive reactance device now, and reactor specially refers to inductor.
When electric power system is short-circuited, can produce the short circuit current that numerical value is very large.If do not limited, keep electric equipment dynamic stability and thermally-stabilised be very difficult.Therefore,, in order to meet the requirement of some circuit breaker interrupting capacity, the wire-outgoing breaker place series reactor of being everlasting, increases short-circuit impedance, limiting short-circuit current.
Owing to having adopted reactor, when being short-circuited, the voltage on reactor is larger by force, so also played the effect that maintains busbar voltage level, makes the voltage fluctuation on bus less, has guaranteed the stability of the user's electric equipment operation on non-fault line.
Traditional reactor combination, it is mainly the iron core with a manganese-zinc ferrite or the made U-shaped of iron sial, again the iron core of two U-shapeds is formed to a core structure, this core structure and the drum stand that is wound with coil are combined into a reactor, this kind of reactor in use, iron loss is 46W, and copper loss is 41.25W.
Alternative reactor is to make a ring-like core structure with a manganese-zinc ferrite or iron sial equally, be to make a layer insulating on this ring-like core structure, on this ring-like core structure, be wound around a coil again, to form a ring-like reactor, this reactor in use iron loss is 13.89W, and copper loss is 41.25W.
Because reactor is in use during power transmission, can produce the magnetic line of force, and these magnetic lines of force can run in iron core the inside, iron core has magnetic resistance, can generate heat, and heat is exactly to lose.Although iron core is very thin, always go back some thickness, so how many magnetic lines of force, in the race of iron core the inside, can turn, the circle of looping, be just eddy current, be also loss.The magnetic line of force runs in iron core the inside, and iron core has magnetic resistance, can allow the magnetic line of force slow down, and is exactly magnetic hysteresis, is also loss.Square being directly proportional of iron loss and eddy current loss, magnetic hysteresis loss, during non-transformer, without iron loss.Copper loss, when electric current is flowed through enamel covered wire, enamel covered wire has resistance, can generate heat, and heat is exactly loss.Copper loss is directly proportional to current squaring, during no-load current, without copper loss.Therefore, iron loss and copper loss are too high will reduce reactor self character and useful life.
Utility model content
In view of this, the technical problems to be solved in the utility model is to provide a kind of core structure of reactor, can reduce iron loss and copper loss.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that
A core structure for reactor, this core structure comprises: 2 first iron cores, the material of these 2 first iron cores is iron-base nanometer crystal alloy, and be U font, on it, have a main body, two ends of this main body are respectively bent with two symmetrical bending segments, respectively have an end face on this bending segment; 2 second iron cores, the material of these 2 second iron cores is sendust, has a cylinder on it, on two ends of this cylinder, respectively has an end; Wherein, two ends of this 2 second iron core connect biend group that should 2 first iron cores, and are formed with an air gap between two ends and biend.
As preferred version, this 2 first iron core is reeled and is formed by the iron-base nanometer crystal alloy of plates.
As preferred version, the main body of these 2 first iron cores is rectangle.
As preferred version, the cylinder of these 2 second iron cores is rectangle.
As preferred version, the magnetic permeability mu of these 2 second iron cores is 60.
As preferred version, more include a pad, this pad is seated in this air gap.
As preferred version, this pad is non-conductive material.
As preferred version, on the surface of this 2 first iron core and these 2 second iron cores, respectively there is an insulating barrier.
As preferred version, the iron loss of the core structure that this 2 first iron core and this 2 second iron core form is 10.7W.
As preferred version, the copper loss of the core structure that this 2 first iron core and this 2 second iron core form is 19.27W.
As preferred version, the internal resistance value of this reactor is 25.7mhom.
As preferred version, more include two drum stands, this drum stand is placed on this 2 second iron core.
The technique effect that the utility model reaches is as follows: the core structure of the utility model reactor, with different combinations of materials, become, and can reduce iron loss and reduce the coil winding number of turns, can make the internal resistance value of reactor reduce, can reduce copper loss.
Accompanying drawing explanation
Fig. 1 is the first coiling iron core schematic diagram of the present utility model;
Fig. 2 is that the first iron core of the present utility model cuts schematic diagram;
Fig. 3 is the second iron core schematic appearance of the present utility model;
Fig. 4 is the combination schematic diagram of two the first iron cores of the present utility model and two the second iron cores;
Fig. 5 is the schematic side view of Fig. 4;
Fig. 6 is the combination schematic diagram of another embodiment of the present utility model;
Fig. 7 is the schematic side view of Fig. 6;
Fig. 8 is the section cross-sectional schematic that the second iron core sleeve of the present utility model is provided with drum stand.
[symbol description]
The first iron core 1
Bending segment 12
The second iron core 2
Ora terminalis 52
Chamfering 53
Embodiment
Relevant the technical content and a detailed description of the present utility model, coordinate graphic being described as follows now:
Refer to Fig. 1 ~ Fig. 3, for the first coiling iron core of the present utility model, cut and the second iron core schematic appearance.As shown in the figure: the core structure of reactor of the present utility model, this core structure comprises: the first iron core 1 and the second iron core 2.
This first iron core 1, for iron-base nanometer crystal alloy (Nanocrystal), this iron-base nanometer crystal alloy is comprised of iron, silicon, boron and a small amount of copper, molybdenum, niobium etc., and process technique is made into plates by this iron-base nanometer crystal alloy, the iron-base nanometer crystal alloy of these plates is being wound into this first iron core 1.After this first iron core 1 has been reeled, this first iron core 1 is cut into the first iron core 1 of two U fonts, on this first iron core 1, have a rectangular main body 11, two ends of this main body 11 are respectively bent with two symmetrical bending segments 12, respectively have an end face 13 on this bending segment 12.
This second iron core 2, with sendust powder (sendust), utilizes thermosetting or compact technique that sendust powder compaction is made into after a rectangular cylinder 21, then with sintering technology sintering, forms the structure of this second iron core 2.On two ends of the cylinder 21 of this second iron core 2, respectively there is an end 22.In this is graphic, this second iron core 2 utilizes sintering technology, makes magnetic permeability mu=60.
Referring to Fig. 4 and Fig. 5, is two the first iron cores of the present utility model and the combination of two the second iron cores and the schematic side view of Fig. 4.As shown in the figure: after the first iron core 1 of the present utility model and the second iron core 2 complete, with transparent or nontransparent insulating varnish, coat on the surface of this first iron core 1 and this second iron core 2, make the surface of this first iron core 1 and this second iron core 2 be formed with an insulating barrier (not shown), this insulating barrier can be for being wound around the coil (not shown) being coiled into by copper cash on this second iron core 2.
While again two the first iron cores 1 and two the second iron cores 2 being combined into core structure, biend 13 by two ends 22 of the cylinder of these 2 second iron cores 2 21 to body that should 2 first iron cores 1, and between two ends 22 and biend 13, be formed with an air gap 3, in this air gap 3, can put the pad 4 of non-conductive material, to control air gap 3 sizes, can control the magnetic saturation state of reactor, in this is graphic, this air gap 3 is 0.5mm.
When the second iron core 2 of making at above-mentioned the first iron core 1 made from this iron-base nanometer crystal alloy and this iron sial is combined into the core structure of reactor, can reduce the coil winding number of turns, making internal resistance value is 25.7mohm, and iron loss is 10.7W, and copper loss is 19.27W.The core structure that hence one can see that is combined into two kinds of different materials can significantly reduce copper loss.
Referring to Fig. 6 and Fig. 7, is the combination of another embodiment of the present utility model and the schematic side view of Fig. 6.As shown in the figure: at the first iron core 1 of the present utility model and this second iron core 2, be combined into before core structure, each cover on this 2 second iron core 2 can be had to a drum stand (bobbin) 5, this drum stand 5 has the rectangular body 51 of a hollow, respectively has an ora terminalis 52 on two ends of this body 51.
When the body 51 of this drum stand 5 is being placed on this 2 second iron core 2, can winding around 6 on the body 51 of this drum stand 5.When the second iron core 2 of making due to the first iron core 1 made from this iron-base nanometer crystal alloy and this iron sial is combined into the core structure of reactor, can reduce coil 6 number of turns that are wound on this drum stand 5, making internal resistance value is 25.7mohm, and iron loss is 10.7W, and copper loss is 19.27W.The core structure that hence one can see that is combined into two kinds of different materials can significantly reduce copper loss.
Further, refer to Fig. 8, for the second iron core sleeve of the present utility model is provided with the section cross-sectional schematic of drum stand.As shown in the figure: when this drum stand 5 is placed on this second iron core 2 outer surface, can on the body of this drum stand 5 51, be wound around copper cash and forms coil 6.Because the thickness of this drum stand 5 is 1mm, therefore the length of the chamfering 53 on this drum stand 3 is 1mm, and after winding around 6, the desirable 1mm of this chamfering 53 controls winding turns.
The above, be only preferred embodiment of the present utility model, is not intended to limit protection range of the present utility model.
Claims (12)
1. a core structure for reactor, is characterized in that, this core structure comprises:
2 first iron cores, the material of these 2 first iron cores is iron-base nanometer crystal alloy, and is U font, has a main body on it, two ends of this main body are respectively bent with two symmetrical bending segments, respectively have an end face on this bending segment;
2 second iron cores, the material of these 2 second iron cores is sendust, has a cylinder on it, on two ends of this cylinder, respectively has an end;
Wherein, two ends of this 2 second iron core connect biend group that should 2 first iron cores, and are formed with an air gap between two ends and biend.
2. the core structure of reactor according to claim 1, is characterized in that, this 2 first iron core is reeled and formed by the iron-base nanometer crystal alloy of plates.
3. the core structure of reactor according to claim 2, is characterized in that, the main body of these 2 first iron cores is rectangle.
4. the core structure of reactor according to claim 3, is characterized in that, the cylinder of these 2 second iron cores is rectangle.
5. the core structure of reactor according to claim 4, is characterized in that, the magnetic permeability mu of these 2 second iron cores is 60.
6. the core structure of reactor according to claim 5, is characterized in that, more includes a pad, and this pad is seated in this air gap.
7. the core structure of reactor according to claim 6, is characterized in that, this pad is non-conductive material.
8. the core structure of reactor according to claim 7, is characterized in that, on the surface of this 2 first iron core and these 2 second iron cores, respectively has an insulating barrier.
9. the core structure of reactor according to claim 8, is characterized in that, the iron loss of the core structure that this 2 first iron core and this 2 second iron core form is 10.7W.
10. the core structure of reactor according to claim 9, is characterized in that, the copper loss of the core structure that this 2 first iron core and this 2 second iron core form is 19.27W.
The core structure of 11. reactors according to claim 10, is characterized in that, the internal resistance value of this reactor is 25.7mhom.
The core structure of 12. reactors according to claim 11, is characterized in that, more includes two drum stands, and this drum stand is placed on this 2 second iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726722.6U CN203552880U (en) | 2013-11-18 | 2013-11-18 | Magnetic core structure of electric reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726722.6U CN203552880U (en) | 2013-11-18 | 2013-11-18 | Magnetic core structure of electric reactor |
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| Publication Number | Publication Date |
|---|---|
| CN203552880U true CN203552880U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320726722.6U Expired - Lifetime CN203552880U (en) | 2013-11-18 | 2013-11-18 | Magnetic core structure of electric reactor |
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| CN (1) | CN203552880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107430928A (en) * | 2015-04-07 | 2017-12-01 | 松下知识产权经营株式会社 | Reactor |
-
2013
- 2013-11-18 CN CN201320726722.6U patent/CN203552880U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107430928A (en) * | 2015-04-07 | 2017-12-01 | 松下知识产权经营株式会社 | Reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: KUNSHAN MAJI ELECTRONICS CO., LTD. Free format text: FORMER OWNER: ZHAO YITAI Effective date: 20140711 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: TAIWAN, CHINA TO: 215300 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140711 Address after: Suzhou City, Jiangsu province 215300 town Kunshan city flower road 1618 Patentee after: KUNSHAN MAJI ELECTRONICS CO.,LTD. Address before: Lane 1, Lane 103, Lane three, Sha Tin Road, Taichung District, Taichung City, Taiwan, China 8 Patentee before: Zhao Yitai |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |