CN203588812U - Magnetic core structure of electric reactor - Google Patents
Magnetic core structure of electric reactor Download PDFInfo
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- CN203588812U CN203588812U CN201320726348.XU CN201320726348U CN203588812U CN 203588812 U CN203588812 U CN 203588812U CN 201320726348 U CN201320726348 U CN 201320726348U CN 203588812 U CN203588812 U CN 203588812U
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- iron
- core
- iron core
- core structure
- cores
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 181
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims abstract description 15
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 12
- 229910000702 sendust Inorganic materials 0.000 claims abstract description 8
- 239000013078 crystal Substances 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000035699 permeability Effects 0.000 claims description 5
- 239000012811 non-conductive material Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 8
- 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
- 150000001879 copper Chemical class 0.000 description 2
- 238000000354 decomposition reaction Methods 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
- 239000000843 powder Substances 0.000 description 2
- 241001061264 Astragalus Species 0.000 description 1
- 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
- 241000278713 Theora Species 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
- 238000010438 heat treatment 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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Abstract
The utility model discloses a magnetic core structure of an electric reactor. The magnetic core structure of the electric reactor comprises two first iron cores and two second iron cores. The two first iron cores are made of sendust. The two second iron cores are made of iron-based nanocrystalline alloy. When the two first iron cores and the two second iron cores are combined to form the magnetic core structure, the two second iron cores are located between the two first iron cores, the two second iron cores are perpendicular to the two first iron cores, the two ends of each second iron core are respectively provided with a magnetic core structure body with an air gap, and the side faces of each first iron core are respectively provided with a magnetic core structure body with an air gap. The magnetic core structure of the electric reactor is formed by different materials, the number of times of winding of a coil can be reduced, and as a result, the value of internal resistance of the electric reactor can be reduced, and copper loss can be 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, the reactor of this kind 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, when electric current flowing through coil (enamel covered wire), coil (enamel covered wire) has resistance (internal resistance), can make reactor heating, and this thermal source is exactly that copper loss is lost.So above-mentioned two kinds of core structures need around astragal number many, relatively internal resistance value is high, the copper loss that therefore produced is higher, and in use easily produces high temperature at reactor.
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 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 sendust, on this 2 first iron core, respectively has biend, is connected with multiple orthogonal sides between this biend; 2 second iron cores, the material of these 2 second iron cores is iron-base nanometer crystal alloy, on this 2 second iron core, respectively has two ends, is connected with multiple orthogonal side surfaces between this two end; Wherein, this 2 second iron core, between this 2 first iron core, makes this 2 second iron core become plumbness configuration with this 2 first iron core, is respectively formed with the core structure of an air gap on two ends of this second iron core and the side of the first iron core.
As preferred version, this 2 first iron core is rectangular cylinder.
As preferred version, the magnetic permeability mu of these 2 first iron cores is 60.
As preferred version, this 2 second iron core is reeled and is formed by the iron-base nanometer crystal alloy of plates.
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 14.6W.
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.
The another kind of technical scheme that the utility model provides: a kind of core structure of reactor, this core structure comprises: 2 first iron cores, the material of these 2 first iron cores is sendust, on this 2 first iron core, respectively has biend, is connected with multiple orthogonal sides between this biend; 2 second iron cores, the material of these 2 second iron cores is iron-base nanometer crystal alloy, on this 2 second iron core, respectively has two ends, is connected with multiple orthogonal side surfaces between this two end; Two drum stands, are sheathed on the outer surface of these 2 second iron cores, and this drum stand length this 2 second core length is long, have the body of a hollow on it, and these body two ends respectively have an ora terminalis; Wherein, when two ora terminalis of the body of this two drum stand and the contacts side surfaces of this first iron core, make to be formed with an air gap between the end of the second iron core of this body interior and this first iron core one side.
As preferred version, this 2 first iron core is rectangular cylinder.
As preferred version, the magnetic permeability mu of these 2 first iron cores is 60.
As preferred version, this 2 second iron core is reeled and is formed by the iron-base nanometer crystal alloy of plates.
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 14.6W.
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.
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 to 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 iron core schematic diagram of the present utility model;
Fig. 2 is the second coiling iron core schematic diagram of the present utility model;
Fig. 3 is the decomposing schematic representation of two the first iron cores of the present utility model and two the second iron cores;
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 partial schematic sectional view of Fig. 4;
Fig. 6 is another embodiment schematic diagram of the present utility model;
Fig. 7 is the combination schematic diagram of Fig. 6;
Fig. 8 is the combination cross-sectional schematic of Fig. 7 and the first iron core;
Fig. 9 is the local enlarged diagram of Fig. 8;
Figure 10 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
The second iron core 2
Ora terminalis 52
Chamfering 53
Air gap 6
Coil 7.
Embodiment
Relevant the technical content and a detailed description of the present utility model, coordinate graphic being described as follows now:
Referring to Fig. 1 and Fig. 2, is the first iron core of the present utility model and the second coiling iron core schematic diagram.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, with sendust powder (sendust), utilizes thermosetting or compact technique that sendust powder compaction is made into after a rectangular cylinder, then with sintering technology sintering, forms the structure of this first iron core 1.On this first iron core 1, there is biend 11, between this biend 11, be connected with multiple orthogonal sides 12.In this is graphic, this first iron core 1 utilizes sintering technology, makes magnetic permeability mu=60.
This second iron core 2, 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 second iron core 2.After this second iron core 2 is reeled, on this second iron core 2, there are two ends 21, between this two end 21, be connected with multiple orthogonal side surfaces 22.
Referring to Fig. 3 ~ Fig. 5, is the partial schematic sectional view of decomposition, combination and Fig. 4 of two the first iron cores of the present utility model and two the second iron cores.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, by this 2 second iron core 2 between this 2 first iron core 1, make 1 one-tenth plumbness configuration of this 2 second iron core 2 and this 2 first iron core, allow two ends 21 of this second iron core 2 and the side 12 of the first iron core 1 be formed with an air gap (gap) 3, in this air gap 3, can put the pad 4 of non-conductive material, 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 made iron core 2 of above-mentioned the first iron core 1 made from this iron sial and this iron-base nanometer crystal alloy is combined into the core structure of reactor, can reduce the coil winding number of turns, the iron loss that makes reactor is 14.6W, this 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 ~ Fig. 9, is the decomposition of another embodiment of the present utility model, the combination of Fig. 6, and the combination of Fig. 7 and the first iron core is analysed and observe and the local enlarged diagram of Fig. 8.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, the length of these 2 second iron cores 2 of body 51 Length Ratios of this drum stand 5 is long, when cover has the second iron core 2 of this drum stand 5 to be combined into a core structure with this 2 first iron core 1, the ora terminalis 52 of the body 51 of this drum stand 5 contacts the side 12 in this first iron core 1, make to be formed with an air gap (gap) 6 between the end 21 of the second iron core 2 of this inside and this first iron core 1 one sides 12, in this air gap 6, need not put any pad, and control air gap 6 sizes, can control the magnetic saturation state (as shown in Figure 8) of reactor.
For example, the length of this second iron core 2 is 70mm, the length of this drum stand 5 is 71mm, when the second iron core 2 is disposed at that this drum stand 5 is inner to be engaged with the side 12 of this first iron core 1, two ora terminalis 52 of this drum stand 5 can make to be respectively formed with between two ends 21 of this second iron core 2 and the side 12 of these 2 first iron cores 1 air gap 6 of 0.5mm.
When the second made iron core 2 of above-mentioned the first iron core 1 made from this iron sial and this iron-base nanometer crystal alloy is combined into the core structure of reactor, can reduce coil 7 and be wound around the number of turns, the iron loss that makes reactor is 14.6W, this 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 Figure 10, 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 7.While being 1mm due to the thickness of this drum stand 5, therefore the length of the chamfering 53 on this drum stand 3 is 1mm, and after winding around 7, 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 (16)
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 sendust, on this 2 first iron core, respectively has biend, is connected with multiple orthogonal sides between this biend;
2 second iron cores, the material of these 2 second iron cores is iron-base nanometer crystal alloy, on this 2 second iron core, respectively has two ends, is connected with multiple orthogonal side surfaces between this two end;
Wherein, this 2 second iron core, between this 2 first iron core, makes this 2 second iron core become plumbness configuration with this 2 first iron core, is respectively formed with the core structure of an air gap on two ends of this second iron core and the side of the first iron core.
2. the core structure of reactor according to claim 1, is characterized in that, this 2 first iron core is rectangular cylinder.
3. the core structure of reactor according to claim 2, is characterized in that, the magnetic permeability mu of these 2 first iron cores is 60.
4. the core structure of reactor according to claim 3, is characterized in that, this 2 second iron core is reeled and formed by the iron-base nanometer crystal alloy of plates.
5. the core structure of reactor according to claim 4, is characterized in that, more includes a pad, and this pad is seated in this air gap.
6. the core structure of reactor according to claim 5, is characterized in that, this pad is non-conductive material.
7. the core structure of reactor according to claim 6, is characterized in that, on the surface of this 2 first iron core and these 2 second iron cores, respectively has an insulating barrier.
8. the core structure of reactor according to claim 7, 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 14.6W.
9. the core structure of reactor according to claim 8, 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.
10. 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 sendust, on this 2 first iron core, respectively has biend, is connected with multiple orthogonal sides between this biend;
2 second iron cores, the material of these 2 second iron cores is iron-base nanometer crystal alloy, on this 2 second iron core, respectively has two ends, is connected with multiple orthogonal side surfaces between this two end;
Two drum stands, are sheathed on the outer surface of these 2 second iron cores, and this drum stand length this 2 second core length is long, have the body of a hollow on it, and these body two ends respectively have an ora terminalis;
Wherein, when two ora terminalis of the body of this two drum stand and the contacts side surfaces of this first iron core, make to be formed with an air gap between the end of the second iron core of this body interior and this first iron core one side.
The core structure of 11. reactors according to claim 10, is characterized in that, this 2 first iron core is rectangular cylinder.
The core structure of 12. reactors according to claim 11, is characterized in that, the magnetic permeability mu of these 2 first iron cores is 60.
The core structure of 13. reactors according to claim 12, is characterized in that, this 2 second iron core is reeled and formed by the iron-base nanometer crystal alloy of plates.
The core structure of 14. reactors according to claim 13, is characterized in that, on the surface of this 2 first iron core and these 2 second iron cores, respectively has an insulating barrier.
The core structure of 15. reactors according to claim 14, 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 14.6W.
The core structure of 16. reactors according to claim 15, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726348.XU CN203588812U (en) | 2013-11-18 | 2013-11-18 | Magnetic core structure of electric reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726348.XU CN203588812U (en) | 2013-11-18 | 2013-11-18 | Magnetic core structure of electric reactor |
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| Publication Number | Publication Date |
|---|---|
| CN203588812U true CN203588812U (en) | 2014-05-07 |
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| CN201320726348.XU Expired - Lifetime CN203588812U (en) | 2013-11-18 | 2013-11-18 | Magnetic core structure of electric reactor |
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| CN (1) | CN203588812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895329A (en) * | 2016-07-04 | 2016-08-24 | 苏州吴变电气科技有限公司 | Magnetic core heat dissipation structure of reactor |
-
2013
- 2013-11-18 CN CN201320726348.XU patent/CN203588812U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895329A (en) * | 2016-07-04 | 2016-08-24 | 苏州吴变电气科技有限公司 | Magnetic core heat dissipation structure of 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 |
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| 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 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |