CN209374239U - SMX separation type coil inductance - Google Patents
SMX separation type coil inductance Download PDFInfo
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- CN209374239U CN209374239U CN201920155352.2U CN201920155352U CN209374239U CN 209374239 U CN209374239 U CN 209374239U CN 201920155352 U CN201920155352 U CN 201920155352U CN 209374239 U CN209374239 U CN 209374239U
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Abstract
SMX separation type coil inductance includes: the first winding, the second winding, magnetic core and skeleton, first winding is identical as the second winding construction, first winding and the second winding are connect with magnetic core two sides, and around being mounted in skeleton, skeleton is fixedly connected the first winding and second with magnetic core.Wherein, magnetic core includes: upper magnetic core, lower magnetic core, air gap interlayer and lead-out wire.The utility model increases air gap interlayer compared with traditional technology, among magnetic core, and side leg air-gap-free comes into full contact with, AL value needed for not only ensure that product, while can greatly improve saturation current；Skeleton takes multi-groove structure to design, and each around component slot coiling, reduces the MX33W distribution capacity of wide temperature characteristics, to meet wide electromagnetism interference frequency range.
Description
Technical field
The utility model relates to coil inductances, and in particular to a kind of SMX separation type coil inductance.
Background technique
Hyundai electronics information, power electronic technique and equipment all be unable to do without reliable power supply, open the eighties from twentieth century
Beginning computer power supply realizes Switching Power Supply comprehensively, takes the lead in completing to regenerate；Into after 2010, to advocate energy conservation, environmentally protective, height
Frequency power enters LED illumination industry again, and LED semiconductor lighting is now commonly used as a kind of emerging energy-conserving product
With the fields such as family, industry, automobile, public place；Either Switching Power Supply or LED drive power, its working frequency
Be continuously improved, general work frequency all in 60KHz or more, high reachable 1MHz or more, but therewith due to the higher-order of oscillation generate
Electromagnetic interference with regard to even more serious, external disturbance and internal interference can be divided into from interference source.Therefore, for inhibit external disturbance into
Enter equipment and internal interference to radiate to power grid, the anti-EMI filter magnetic device between power grid and equipment just seems increasingly important.It is conventional
Electromagnetism interference inductance there are two types of: one is two windings rotating around on magnet ring both sides；Another is exactly two around component
It is not wound on two slots of skeleton, is realized in assembling magnetic core, and both scheme differential mode inductance all very littles, therefore be easy to satisfy
With, and jamproof frequency range and resonance impedance all very littles.Therefore wide anti-interference there is an urgent need to design and develop a kind of high saturation
The electromagnetism interference common mode inductance of frequency range and high resonance impedance.
To solve the above-mentioned problems, we are made that a series of improvement.
Utility model content
The purpose of the utility model is to provide SMX separation type coil inductance, above-mentioned present in the prior art to overcome
Shortcoming and defect.
SMX separation type coil inductance characterized by comprising the first winding, the second winding, magnetic core and skeleton, described
One winding is identical as the second winding construction, and first winding and the second winding are connect with magnetic core two sides, first winding and
Second around being mounted in skeleton, and the skeleton is fixedly connected with magnetic core；
Wherein, the magnetic core includes: upper magnetic core, lower magnetic core, air gap interlayer and lead-out wire, and the upper magnetic core and lower magnetic core are logical
Cross the connection of two sides leg, the air gap interlayer is composed by the center pillar of upper magnetic core and lower magnetic core, described lead-out wire one end with
Upper magnetic core connection, the lead-out wire other end are connect with the first winding and the second winding.
Further, first winding includes: primary coil and secondary coil, and the primary coil and secondary coil are distinguished
Set on skeleton two sides.
Further, the skeleton includes: fixed frame and winding slot, and the winding slot is set on the inside of fixed frame.
The utility model has the beneficial effects that
The utility model increases air gap interlayer compared with traditional technology, among magnetic core, and side leg air-gap-free comes into full contact with, no
But AL value needed for ensure that product, while saturation current can be greatly improved；Skeleton takes multi-groove structure to design, each winding
Divide slot coiling, reduces the MX33W distribution capacity of wide temperature characteristics, to meet wide electromagnetism interference frequency range.
Detailed description of the invention:
Fig. 1 is the structure chart of the utility model.
Appended drawing reference:
First winding 100, primary coil 110, secondary coil 120 and the second winding 200.
Magnetic core 300, upper magnetic core 310, lower magnetic core 320, air gap interlayer 330 and lead-out wire 340, side leg 350 and center pillar 360.
Skeleton 400, fixed frame 410 and winding slot 420.
Specific embodiment
Below in conjunction with specific embodiment, progress explanation is made to the utility model.It should be understood that following embodiment is merely to illustrate
The utility model is not for restriction the scope of the utility model.
Embodiment 1
Fig. 1 is the structure chart of the utility model.
As shown in Figure 1, SMX separation type coil inductance includes: the first winding 100, the second winding 200, magnetic core 300 and skeleton
400, the first winding 100 is identical as 200 structure of the second winding, and the first winding 100 and the second winding 200 connect with 300 two sides of magnetic core
It connects, the first winding 100 and the second winding 200 are set in skeleton 400, and skeleton 400 is fixedly connected with magnetic core 300；
Wherein, magnetic core 300 includes: upper magnetic core 310, lower magnetic core 320, air gap interlayer 330 and lead-out wire 340, upper magnetic core 310
It is connect with lower magnetic core 320 by two sides leg 350, pass through upper magnetic core 310 and lower magnetic core 320 360 groups of center pillar of air gap interlayer 330
It closes, 340 one end of lead-out wire is connect with upper magnetic core 310,340 other end of lead-out wire and the first winding 100 and the second winding 200
Connection.
First winding 100 includes: primary coil 110 and secondary coil 120, and primary coil 110 and secondary coil 120 are distinguished
Set on 400 two sides of skeleton.
Skeleton 400 includes: fixed frame 410 and winding slot 420, and winding slot 420 is set to 410 inside of fixed frame.
The innovative point of the utility model: in terms of Magnetic Core Design, using conventional E shape structure, gas is formed between magnetic core center pillar
Gap interlayer 330,350 air-gap-free of side leg come into full contact with, and have broken conventional mentality of designing, AL needed for not only ensure that product
Value, while saturation current can be greatly improved；The MX33W of wide temperature characteristics is chosen in magnetic core material, it is ensured that spend inductance -40
Fall less than 10%.
Skeleton 400 takes multi-groove structure to design, and each around component slot coiling, reduces the MX33W distribution capacity of wide temperature characteristics,
To meet wide electromagnetism interference frequency range.It is embodied in, we increase winding slot 420 on the basis of tradition.
In terms of design of transformer, the first winding 100 is identical with 200 structure of the second winding, and independent solid rotating around two
Determine on frame 410, and be assemblied on the side leg 350 of 300 two sides of magnetic core, is then connected by lead-out wire 340；300 material of magnetic core is adopted
With the MX33W of wide temperature characteristics, air gap interlayer 330 is 2mm, meets high saturation, wide anti-jam frequency range and high resonance impedance
Characteristic.
Specific embodiment of the present utility model is illustrated above, but the utility model is not limited thereto, only
The objective of the utility model is not departed from, the utility model there can also be various change.
Claims (3)
1.SMX separation type coil inductance characterized by comprising the first winding (100), the second winding (200), magnetic core (300)
With skeleton (400), first winding (100) is identical as the second winding (200) structure, first winding (100) and second
Winding (200) is connect with magnetic core (300) two sides, and first winding (100) and the second winding (200) are set in skeleton (400),
The skeleton (400) is fixedly connected with magnetic core (300)；
Wherein, the magnetic core (300) includes: upper magnetic core (310), lower magnetic core (320), air gap interlayer (330) and lead-out wire
(340), the upper magnetic core (310) is connect with lower magnetic core (320) by two sides leg (350), and the air gap interlayer (330) passes through
The center pillar (360) of upper magnetic core (310) and lower magnetic core (320) is composed, described lead-out wire (340) one end and upper magnetic core (310)
Connection, lead-out wire (340) other end are connect with the first winding (100) and the second winding (200).
2. SMX separation type coil inductance according to claim 1, it is characterised in that: first winding (100) includes:
Primary coil (110) and secondary coil (120), the primary coil (110) and secondary coil (120) are respectively arranged on skeleton
(400) two sides.
3. SMX separation type coil inductance according to claim 1, it is characterised in that: described and skeleton (400) include: solid
Determine frame (410) and winding slot (420), the winding slot (420) is set on the inside of fixed frame (410).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920155352.2U CN209374239U (en) | 2019-01-29 | 2019-01-29 | SMX separation type coil inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920155352.2U CN209374239U (en) | 2019-01-29 | 2019-01-29 | SMX separation type coil inductance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209374239U true CN209374239U (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920155352.2U Active CN209374239U (en) | 2019-01-29 | 2019-01-29 | SMX separation type coil inductance |
Country Status (1)
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| CN (1) | CN209374239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690031A (en) * | 2019-10-16 | 2020-01-14 | 广东美的厨房电器制造有限公司 | Transformer framework, transformer and electric equipment |
| CN113628850A (en) * | 2020-05-09 | 2021-11-09 | 北京机械设备研究所 | Magnetic integration method and device for inductor and transformer |
-
2019
- 2019-01-29 CN CN201920155352.2U patent/CN209374239U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690031A (en) * | 2019-10-16 | 2020-01-14 | 广东美的厨房电器制造有限公司 | Transformer framework, transformer and electric equipment |
| CN113628850A (en) * | 2020-05-09 | 2021-11-09 | 北京机械设备研究所 | Magnetic integration method and device for inductor and transformer |
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