CN204732276U - Novel big current plane filtering inductance - Google Patents
Novel big current plane filtering inductance Download PDFInfo
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- CN204732276U CN204732276U CN201520504590.1U CN201520504590U CN204732276U CN 204732276 U CN204732276 U CN 204732276U CN 201520504590 U CN201520504590 U CN 201520504590U CN 204732276 U CN204732276 U CN 204732276U
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- magnetic core
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- plane filtering
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Abstract
The utility model relates to a kind of novel big current plane filtering inductance, its winding (3) adopts copper coin Linear cut to be shaped, magnetic core installation gap (3-1) is provided with in winding both sides, centre is provided with magnetic core and installs hollow (3-2), winding is provided with the connecting hole (3-3) for connecting binding post (4), the installing hole (3-4) for installing insulating cushion block I (5) and cross-over block II (6) is provided with at the periphery of winding, winding is positioned in the middle of magnetic core I (1) and magnetic core II (2), magnetic core I and magnetic core II is by magnetic core installation gap and the docking of magnetic core installing hole, air gap (7) is left between magnetic core I and magnetic core II, space (8) is provided with between the inwall of magnetic core I and magnetic core II and winding.The utility model improves the window utilance of magnetic core, thus improves the current capacity of winding.Inductance of the present utility model, its winding leaves installation gap and installing hole, is installed by winding, avoids magnetic core surface stressed.
Description
Technical field
The utility model relates to a kind of filter inductance, particularly relates to a kind of big current plane filtering inductance.
Background technology
" short, little, light, thin " is the Main Trends of The Development of current Switching Power Supply, realize this goal, and just needs the components and parts improving power density and adopt small in volume.For the filter inductance that electric current reaches hundreds of amperes, design, processing, installation are all difficult problems, and it relates to employing winding configuration, lead-out wire mode, fixed form etc.The winding of big current plane filtering inductance uses copper strips lap wound or multi cord coiling in parallel usually, although this way is simple, but magnetic core window utilance is low, winding current capacity is poor, electrical connection difficulty, during inductance assembling simultaneously, the mechanical stress that winding is subject to can be delivered on magnetic core, causes magnetic core cracked.In sum, big current plane filtering inductor design and manufacture difficulty, adopts conventional method cannot meet the requirement of miniaturization, slimming and high reliability.
Utility model content
A kind of structure is provided simple, big current plane filtering inductance easy for installation for above problem the utility model.This filter inductance Winding Design is novel, and the window utilance of magnetic core is high, and power density is large, reliability is high, and compact assembling structure is ingenious, is installed by winding, avoid magnetic core to be subject to stress and cracked, be specially adapted to environment for use severe, the occasion that Oscillation Amplitude is large.Winding welds binding post, is convenient to be electrically connected with outside, does not take additional space, thus realize miniaturized and slimming.
A kind of novel big current plane filtering inductance is provided in order to overcome the above problems the utility model, it is characterized in that: magnetic core I, magnetic core II, winding, binding post, cross-over block I, cross-over block II, winding adopts copper coin Linear cut to be shaped, magnetic core installation gap is provided with in winding both sides, centre is provided with magnetic core and installs hollow, winding is provided with the connecting hole for connecting binding post, the installing hole for installing insulating cushion block I and cross-over block II is provided with at the periphery of winding, cross-over block I and cross-over block II can avoid mechanical stress to be transmitted to magnetic core I and magnetic core II, winding is positioned in the middle of magnetic core I and magnetic core II, magnetic core I and magnetic core II is by magnetic core installation gap and the docking of magnetic core installing hole, air gap is left between magnetic core I and magnetic core II, space is provided with between the inwall of magnetic core I and magnetic core II and winding, thus guarantee electrical insulation capability.
Magnetic core I and magnetic core II adopts the plane MnZn FERRITE CORE of high-frequency low-consumption.Air gap between magnetic core I and magnetic core II is epoxy lath.In magnetic core I and the space between magnetic core II inwall and winding, point has colloid, and magnetic core I, magnetic core II are fixed on winding by colloid.Winding is helix shape.Binding post is provided with internal thread.
The utility model winding adopts the form of copper coin Linear cut to make, and selects the copper coin of corresponding thickness, improves the window utilance of magnetic core, thus improve the current capacity of winding according to the window height of magnetic core.Big current plane filtering inductance due to volume comparatively large, magnetic core surface area is also large, and common inductance adopts magnetic core surface as installed surface, and magnetic core belongs to fragile material, easily causes magnetic core cracked.Inductance of the present utility model, its winding leaves installation gap and installing hole, is installed by winding, avoids magnetic core surface stressed.Mounting structure is compact, and the volume and weight of Switching Power Supply can be made to have very large reduction.Binding post with threaded hole is welded on winding on the surface, is convenient to inductance and is electrically connected, and saves electrical connection space.Magnetic core adopts the plane MnZn ferrite of high-frequency low-consumption, is conducive to reducing core loss under high frequency condition.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of big current plane filtering inductance of the present utility model.
Fig. 2 is big current plane filtering inductance end view of the present utility model.
Fig. 3 is winding schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
For 6.5uH/120A plane filtering inductance, plane filtering inductor winding current-carrying is based on direct current, and superposition frequency is 200Khz, and amplitude is about the interchange of 10A.
As shown in Figures 1 to 3, the utility model provides a kind of novel big current plane filtering inductance, comprises magnetic core I1, magnetic core II2, winding 3, binding post 4, cross-over block I5, cross-over block II6,
Be provided with magnetic core installation gap 3-1 in winding 3 both sides, centre is provided with magnetic core and installs hollow 3-2, winding 3 being provided with the connecting hole 3-3 for connecting binding post 4, being provided with the installing hole 3-4 for installing insulating cushion block I5 and cross-over block II6 at the periphery of winding 3,
Winding 3 is positioned in the middle of magnetic core I1 and magnetic core II2, and magnetic core I1 and magnetic core II2 is docked by magnetic core installation gap 3-1 and magnetic core installing hole 3-2, leaves air gap 7, be provided with space 8 between the inwall of magnetic core I1 and magnetic core II2 and winding 3 between magnetic core I1 and magnetic core II2.Magnetic core I1 and magnetic core II2 adopts the plane MnZn FERRITE CORE of high-frequency low-consumption.Binding post 4 is provided with internal thread.
Inductance core adopts FERRITE CORE I1 and the magnetic core II2 of two panels PEE64, and winding 3 adopts copper coin Linear cut to become the helix shape of Fig. 3, realizes the umber of turn needed.Binding post 4 is welded in the connecting hole 3-3 of winding 3, magnetic core I1 and magnetic core II2 from winding 3 upper and lower surface insert, magnetic core middle pad epoxy plate bar as air gap 7, as shown in Figure 1.Upper and lower two kinds of cross-over blocks (cross-over block I5, cross-over block II6) insert corresponding installing hole 3-4 respectively, winding 3 is propped up, make to form space 8 between winding 3 and magnetic core (magnetic core I1, magnetic core II2), as shown in Figure 2, thus guarantee electrical insulation capability, simultaneously at gap point glue fixed magnetic core.
The foregoing is only preferred embodiment of the present utility model, be not restricted to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present utility model.
Claims (5)
1. novel big current plane filtering inductance, it is characterized in that: magnetic core I (1), magnetic core II (2), winding (3), binding post (4), cross-over block I (5), cross-over block II (6)
Winding (3) adopts copper coin Linear cut to be shaped, magnetic core installation gap (3-1) is provided with in winding (3) both sides, centre is provided with magnetic core and installs hollow (3-2), winding (3) is provided with the connecting hole (3-3) for connecting binding post (4), the installing hole (3-4) for installing insulating cushion block I (5) and cross-over block II (6) is provided with at the periphery of winding (3)
Winding (3) is positioned in the middle of magnetic core I (1) and magnetic core II (2), magnetic core I (1) and magnetic core II (2) is by magnetic core installation gap (3-1) and magnetic core installing hole (3-2) docking, leave air gap (7) between magnetic core I (1) and magnetic core II (2), between the inwall of magnetic core I (1) and magnetic core II (2) and winding (3), be provided with space (8).
2. novel big current plane filtering inductance according to claim 1, is characterized in that: magnetic core I (1) and magnetic core II (2) adopts the plane MnZn FERRITE CORE of high-frequency low-consumption.
3. novel big current plane filtering inductance according to claim 1 and 2, it is characterized in that: in magnetic core I (1) and the space (8) between magnetic core II (2) inwall and winding (3), point has colloid, and (20 are fixed on winding (3) by colloid for magnetic core I (1), magnetic core II.
4. novel big current plane filtering inductance according to claim 1 and 2, is characterized in that: winding (3) is helix shape.
5. novel big current plane filtering inductance according to claim 1, is characterized in that: binding post (4) is provided with internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520504590.1U CN204732276U (en) | 2015-07-13 | 2015-07-13 | Novel big current plane filtering inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520504590.1U CN204732276U (en) | 2015-07-13 | 2015-07-13 | Novel big current plane filtering inductance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204732276U true CN204732276U (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520504590.1U Active CN204732276U (en) | 2015-07-13 | 2015-07-13 | Novel big current plane filtering inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204732276U (en) |
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2015
- 2015-07-13 CN CN201520504590.1U patent/CN204732276U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191011 Address after: Room 1401, floor 14, block a, building 1, Guorui building, No. 359, Jiangdong Middle Road, Jianye District, Nanjing City, Jiangsu Province, 210019 Patentee after: Nanjing Guorui Defense System Co., Ltd. Address before: 210039 No. 8, Rui Rui Road, Yuhuatai District, Jiangsu, Nanjing Patentee before: No. 14 Inst., China Electronic Science & Technology Group Corp. |