CN102842403A - Magnetic assembly - Google Patents
Magnetic assembly Download PDFInfo
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- CN102842403A CN102842403A CN2011101807531A CN201110180753A CN102842403A CN 102842403 A CN102842403 A CN 102842403A CN 2011101807531 A CN2011101807531 A CN 2011101807531A CN 201110180753 A CN201110180753 A CN 201110180753A CN 102842403 A CN102842403 A CN 102842403A
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- core assembly
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Abstract
The invention discloses a magnetic assembly, comprising a first iron core assembly, a second iron core assembly and a coil. A first hollow part is arranged at the center of the first iron core assembly; the second iron core assembly is arranged in the first hollow part; a second hollow part is arranged at the center of the second iron core assembly; and the magnetic saturation property of the second iron core assembly is better than that of the first iron core assembly. The coil winds the first iron core assembly and the second iron core assembly.
Description
Technical field
The invention relates to a kind of magnet assembly, and particularly relevant for a kind of magnet assembly with annular core.
Background technology
General alleged magnet assembly is general like common assemblies such as transformer, inductance, choking coils, and it all has when electric current and flows into and the characteristic in generation magnetic field.These magnet assemblies mainly are made up of iron core and coiling, can be applicable on big electric current or the high power circuit.
At present electronic technology is maked rapid progress, under the consideration of pursuing portability and practicality, electronic installation on the market generally all be trend towards making light, thin, short, little, to meet the life style of modern society.The assembling of electronic installations such as various for example computers, server, LCD TV is more and more accurate, though the design of its hardware, manufacturing or assembling, all must be towards innovation research constantly such as the target of optimizing structure, increase work efficiency and reduce cost.Along with present electric equipment products towards lightening design, also require its inner magnet assembly size to dwindle relatively as far as possible.
In addition, along with the characteristic of application scenario is different, various magnet assemblies often through special design to meet different electromagnetic property demand (like inductance characteristic etc.).When known old-fashioned magnet assembly is running into electromagnetic property and does not meet circuit application and require; Often the iron core with same size adds folded, as to change bigger iron core or increase winding turns mode; Reach needed electromagnetic property, can increase the space (PCB Layout Block) of circuit arrangement like this.When circuit arrangement space if (PCB Layout) surpasses permissible range, we can only arrange the part again or even change circuit arrangement comprehensively.Therefore possibly need cloth circuits again because of the change Inductive component, make the printed circuit board (PCB) (PCB) of redaction again, possibly cause to develop again new die at last, labor man-hour and material cost.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of magnet assembly, and it has comprised at least two annular core assemblies, and one of them annular core assembly is sheathed among another annular core assembly.The material of above-mentioned compound core assembly, thickness, internal diameter, external diameter can have diversified compound mode, and whereby, magnet assembly can be adjusted electromagnetic property down keeping the configuration of certain winding turns, for example, and raising electromagnetic conversion efficient.Thus, in part embodiment, compound core assembly can reduce coiling use, reduce cost and dwindle the area that magnet assembly is set.
The one side of content of the present invention is that a kind of magnet assembly is being provided, and it comprises first core assembly, second core assembly and coiling.The central authorities of first core assembly have first hollow-out parts.Second core assembly is arranged in this first hollow-out parts, and the central authorities of second core assembly have second hollow-out parts, and the magnetic saturation characteristic of this second core assembly is superior to the magnetic saturation characteristic with first core assembly.Coiling is to be wound on this first core assembly and this second core assembly.
One embodiment of content according to the present invention, wherein coiling be an inner ring surface, second core assembly of a side surface, second core assembly along a side surface of first core assembly, second core assembly opposite side surface, first core assembly opposite side surface to the first core assembly an outer ring surface and be wound on first core assembly and second core assembly.In this embodiment, second core assembly is fixedly set in first hollow-out parts of first core assembly through coiling.
One embodiment of content according to the present invention, first core assembly and second core assembly are annular haply.
One embodiment of content according to the present invention, wherein the magnetic saturation characteristic of second core assembly is superior to this first core assembly.In this embodiment, an inductance value fall of this second core assembly is less than this first core assembly when load current is cumulative.In addition, in this embodiment, the saturated flux density of second core assembly is greater than the saturated flux density of first core assembly.
One embodiment of content according to the present invention, wherein first core assembly comprises a material and is selected from the group that is made up of Fe-Si-Al magnetic core (Kool Mu) and ferrocart core (Iron).
One embodiment of content according to the present invention, wherein this two core assembly comprises a material and is selected from the group that is made up of iron nickel molybdenum magnetic core (MPP) and high magnetic flux magnetic core (HIGH-FLUX).
One embodiment of content according to the present invention, wherein first core assembly is provided with first air gap, and second core assembly has the corresponding zone of contiguous first air gap, and this first air gap is in order to improve the permeability in this corresponding zone.
One embodiment of content according to the present invention, wherein second core assembly is provided with interstice, and first core assembly has the corresponding zone of contiguous interstice, and this interstice is in order to improve a permeability in this corresponding zone.
Description of drawings
For letting above and other objects of the present invention, characteristic, advantage and the embodiment can be more obviously understandable, the explanation of appended accompanying drawing be following:
Fig. 1 illustrates the exploded perspective view according to a kind of magnet assembly of the first embodiment of the present invention;
Fig. 2 is the schematic appearance after the magnet assembly of Fig. 1 is assembled;
First core assembly that Fig. 3 illustrates a kind of magnet assembly is according to a second embodiment of the present invention offered the sketch map of air gap; And
Fig. 4 illustrates the sketch map of offering air gap on a kind of second core assembly of magnet assembly of a third embodiment in accordance with the invention.
[primary clustering symbol description]
Embodiment
See also Fig. 1 and Fig. 2, Fig. 1 illustrates the exploded perspective view according to a kind of magnet assembly 100 of the first embodiment of the present invention, and Fig. 2 is the schematic appearance after the magnet assembly 100 of Fig. 1 is assembled.
As shown in Figure 1, magnet assembly 100 comprises first core assembly 120 and second core assembly 140.In this embodiment, it is annular haply that first core assembly 120 can have the shape that first hollow-out parts, 122, the second core assemblies 140 can have second hollow-out parts, 142, the first core assemblies 120 and second core assembly 140.In the example shown in Fig. 1, first core assembly 120 and second core assembly 140 can be respectively the big and two groups of less concentric annular iron cores of radius of radius.Wherein, the external diameter of second core assembly 140 can be designed to be less than or equal to the internal diameter of first core assembly 120, whereby, can second core assembly 140 be sheathed among first core assembly 120.
See also Fig. 2, magnet assembly 100 can also comprise coiling 160 (not illustrating among Fig. 1), and in the time of among second core assembly 140 is sheathed on first core assembly 120, coiling 160 is wound on first core assembly 120 and second core assembly 140 in the lump.
As shown in Figure 2; Each circle coil of coiling 160 is simultaneously through first core assembly 120 in the outside and second core assembly 140 of inboard; Please be simultaneously with reference to figure 1 and Fig. 2; In this embodiment; Coiling 160 can be twined along the outer ring surface 124 in 128 to first core assemblies, 120 outsides, opposite side surface of 148, first core assembly, 120 belows, opposite side surface of the inboard inner ring surface 144 of the side surface of the side surface 126 of first core assembly, 120 tops, second core assembly, 140 tops 146, second core assembly 140, second core assembly, 140 belows, will wind the line whereby 160 to be wound on this first core assembly 120 and this second core assembly 140.Second core assembly 140 can pass through the support force that coiling 160 is twined in this embodiment, and is fixedly set in first hollow-out parts 122 of first core assembly 120.
What must specify is, on general traditional magnet assembly, only is provided with single core structure in the coiling, if desire adjustment or change the magnetic properties of magnet assembly often need design or make the material or the size of above-mentioned core structure again.In this embodiment; Magnet assembly 100 of the present invention has first core assembly 120 and second core assembly 140; And the material behavior of first core assembly 120 and second core assembly 140 can differ from one another; For example, first core assembly 120 can have different magnetic saturation (magnetic saturation) characteristic with second core assembly 140, sees through two core assemblies selecting different magnetic saturation property combination for use; Can adjust the equivalent magnetic force property of whole iron core easily, save the cost of design again.
In addition, material, thickness, internal diameter, the external diameter of the above-mentioned compound core assembly that is formed by two iron cores can have diversified compound mode, and whereby, magnet assembly 100 can be adjusted electromagnetic property keeping under certain winding turns configuration.
In present embodiment, the magnetic saturation characteristic of second core assembly 140 can be designed to be superior to the magnetic saturation characteristic of first core assembly 120.In the general core material characteristic, when load current continues (after especially closing current value above satisfying), the inductance value of iron core can reduce gradually.Above-mentioned what is called has preferable magnetic saturation characteristic; It is contained meaning and can be; When the load current on applying core assembly was cumulative, the inductance value of second core assembly 140 (inductance claims the L value again) fall was less than first core assembly 120; That is to say that second core assembly 140 has preferable high load currents tolerance.Perhaps, in other embodiment, above-mentioned preferable magnetic saturation characteristic, it is contained meaning and also can be, and (saturation flux density is Bs) greater than the saturated flux density of first core assembly 120 for the saturated flux density of second core assembly 140.
In present embodiment, the material that second core assembly 140 comprises can be selected from the group that is made up of iron nickel molybdenum magnetic core (MPP) and high magnetic flux magnetic core (HIGH-FLUX).The material that first core assembly 120 comprises can be selected from the group that is made up of Fe-Si-Al magnetic core (Kool Mu) and ferrocart core (Iron).See through the selection of above-mentioned material, can make the magnetic saturation characteristic of second core assembly 140 be superior to the magnetic saturation characteristic of first core assembly 120, but the present invention and not only more than state material for example and exceed.
See also Fig. 3, its first core assembly 320 that illustrates a kind of magnet assembly 300 is according to a second embodiment of the present invention offered the sketch map of air gap 322.
As shown in Figure 3, magnet assembly 300 comprises first core assembly 320, second core assembly 340 and winds the line 360.First core assembly 320 and second core assembly 340 are annular haply.Second core assembly 340 is sheathed among first core assembly 320, and wherein the magnetic saturation characteristic of second core assembly 340 can further be superior to this first core assembly 340.Coiling 360 is wound on first core assembly 320 and second core assembly 340.
In second embodiment, first core assembly 320 is provided with an air gap 322, the second core assemblies 340 and has corresponding regional 342 of contiguous this air gap 322.
See also Fig. 4, its second core assembly 540 that illustrates a kind of magnet assembly 500 of a third embodiment in accordance with the invention is offered the sketch map of air gap 542.
As shown in Figure 4, magnet assembly 500 comprises first core assembly 520, second core assembly 540 and winds the line 560.In the 3rd embodiment, second core assembly 540 is provided with an air gap 542, the first core assemblies 520 and has corresponding regional 522 of contiguous this air gap 542.
In addition, gap structure of the present invention does not exceed with one, does not also exceed to be arranged on the specific iron core, and in the practical application, visual demand is provided with one or more air gaps each position on first or second core assembly.
In sum, the present invention proposes a kind of magnet assembly, and it has comprised at least two annular core assemblies, and one of them annular core assembly is sheathed among another annular core assembly.The material of above-mentioned compound core assembly, thickness, internal diameter, external diameter can have diversified compound mode, and whereby, magnet assembly can be adjusted electromagnetic property down keeping the configuration of certain winding turns, for example, and raising electromagnetic conversion efficient.Thus, in part embodiment, compound core assembly can reduce coiling use, reduce cost and dwindle the area that magnet assembly is set.
Though the present invention discloses as above with execution mode; Right its is not in order to limit the present invention; Anyly be familiar with this art; Do not breaking away from the spirit and scope of the present invention, when can doing various changes and retouching, so protection scope of the present invention is as the criterion when looking the scope that appending claims defines.
Claims (10)
1. a magnet assembly is characterized in that, comprises:
One first core assembly, the central authorities of this first core assembly have one first hollow-out parts; And
One second core assembly is arranged in this first hollow-out parts, and the central authorities of this second core assembly have one second hollow-out parts, and the magnetic saturation characteristic of this second core assembly is superior to the magnetic saturation characteristic with this first core assembly; And
One coiling, this coiling is to be wound on this first core assembly and this second core assembly.
2. magnet assembly according to claim 1; It is characterized in that, this coiling be an inner ring surface, this second core assembly of a side surface, this second core assembly of a side surface, this second core assembly along this first core assembly opposite side surface, this first core assembly opposite side surface to this first core assembly an outer ring surface and be wound on this first core assembly and this second core assembly.
3. magnet assembly according to claim 2 is characterized in that, this second core assembly is fixedly set in this first hollow-out parts of this first core assembly through this coiling.
4. magnet assembly according to claim 1 is characterized in that, this first core assembly is an annular with this second core assembly.
5. magnet assembly according to claim 1 is characterized in that, an inductance value fall of this second core assembly is less than this first core assembly when a load current that applies is cumulative.
6. magnet assembly according to claim 1 is characterized in that, a saturated flux density of this second core assembly is greater than a saturated flux density of this first core assembly.
7. magnet assembly according to claim 1 is characterized in that, this first core assembly comprises a material and is selected from the group that is made up of a Fe-Si-Al magnetic core and a ferrocart core.
8. magnet assembly according to claim 1 is characterized in that, this second core assembly comprises a material and is selected from the group that is made up of an iron nickel molybdenum magnetic core and a high magnetic flux magnetic core.
9. magnet assembly according to claim 1 is characterized in that, this first core assembly is provided with one first air gap, and this second core assembly has a corresponding zone of contiguous this first air gap.
10. magnet assembly according to claim 1 is characterized in that, this second core assembly is provided with an interstice, and this first core assembly has a corresponding zone of contiguous this interstice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101807531A CN102842403A (en) | 2011-06-24 | 2011-06-24 | Magnetic assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101807531A CN102842403A (en) | 2011-06-24 | 2011-06-24 | Magnetic assembly |
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| Publication Number | Publication Date |
|---|---|
| CN102842403A true CN102842403A (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101807531A Pending CN102842403A (en) | 2011-06-24 | 2011-06-24 | Magnetic assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016192092A1 (en) * | 2015-06-04 | 2016-12-08 | 深圳市铂科磁材有限公司 | Novel high-power annular reactor and manufacturing method therefor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100520A (en) * | 1974-07-28 | 1978-07-11 | Ben-Gurion University Of The Negev Research And Development Authority | Devices for controlling A.C. motors |
| US4205288A (en) * | 1978-10-27 | 1980-05-27 | Westinghouse Electric Corp. | Transformer with parallel magnetic circuits of unequal mean lengths and loss characteristics |
| CN1996515A (en) * | 2006-01-06 | 2007-07-11 | 三星电子株式会社 | Magnetic core, and inductor and transformer comprising the same |
| US20100253456A1 (en) * | 2007-06-15 | 2010-10-07 | Yipeng Yan | Miniature shielded magnetic component and methods of manufacture |
-
2011
- 2011-06-24 CN CN2011101807531A patent/CN102842403A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100520A (en) * | 1974-07-28 | 1978-07-11 | Ben-Gurion University Of The Negev Research And Development Authority | Devices for controlling A.C. motors |
| US4205288A (en) * | 1978-10-27 | 1980-05-27 | Westinghouse Electric Corp. | Transformer with parallel magnetic circuits of unequal mean lengths and loss characteristics |
| CN1996515A (en) * | 2006-01-06 | 2007-07-11 | 三星电子株式会社 | Magnetic core, and inductor and transformer comprising the same |
| US20100253456A1 (en) * | 2007-06-15 | 2010-10-07 | Yipeng Yan | Miniature shielded magnetic component and methods of manufacture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016192092A1 (en) * | 2015-06-04 | 2016-12-08 | 深圳市铂科磁材有限公司 | Novel high-power annular reactor and manufacturing method therefor |
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Application publication date: 20121226 |