CN105374498B - A kind of transformator of use EPOI shapes multipurpose FERRITE CORE - Google Patents
A kind of transformator of use EPOI shapes multipurpose FERRITE CORE Download PDFInfo
- Publication number
- CN105374498B CN105374498B CN201510957364.3A CN201510957364A CN105374498B CN 105374498 B CN105374498 B CN 105374498B CN 201510957364 A CN201510957364 A CN 201510957364A CN 105374498 B CN105374498 B CN 105374498B
- Authority
- CN
- China
- Prior art keywords
- parts
- core
- shapes
- magnetic
- transformator
- Prior art date
- 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.)
- Active
Links
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 22
- 229920002943 EPDM rubber Polymers 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 210000003141 lower extremity Anatomy 0.000 claims description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 5
- 239000005662 Paraffin oil Substances 0.000 claims description 4
- RGCKGOZRHPZPFP-UHFFFAOYSA-N alizarin Chemical compound C1=CC=C2C(=O)C3=C(O)C(O)=CC=C3C(=O)C2=C1 RGCKGOZRHPZPFP-UHFFFAOYSA-N 0.000 claims description 4
- 230000003712 anti-aging effect Effects 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 4
- 239000000347 magnesium hydroxide Substances 0.000 claims description 4
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 4
- 239000004200 microcrystalline wax Substances 0.000 claims description 4
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 230000004907 flux Effects 0.000 abstract description 7
- 238000004804 winding Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 238000004513 sizing Methods 0.000 description 5
- 238000004073 vulcanization Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000003679 aging effect Effects 0.000 description 2
- BNPSSFBOAGDEEL-UHFFFAOYSA-N albuterol sulfate Chemical compound OS(O)(=O)=O.CC(C)(C)NCC(O)C1=CC=C(O)C(CO)=C1.CC(C)(C)NCC(O)C1=CC=C(O)C(CO)=C1 BNPSSFBOAGDEEL-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000003143 atherosclerotic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The present invention provides a kind of EPOI shapes multipurpose FERRITE CORE, including two EPO shapes magnetic cores and an I piece shape core combination are formed.Exported with two windings on same secondary magnetic core using the FERRITE CORE of the present invention, while using as two inductance, be capable of achieving the miniaturization of magnetic device and power supply；And the magnetic circuit of magnetic core net sectional area is more uniform everywhere, the concordance of magnetic flux density everywhere can be kept, too high core loss will not be caused as local flux density is too high, so as to produce temperature rise " focus ", be improve the reliability of device and power supply.Present invention also offers a kind of transformator using above-mentioned magnetic core.
Description
Technical field
The present invention relates to a kind of magnetic core of Mn-Zn soft magnetic ferrite and the transformator using the magnetic core, more particularly to a kind of
EPOI shape multipurpose FERRITE CORE.
Background technology
The common ferrite magnetic core volume for being currently used for miniaturization Switching Power Supply or dc-dc transformator is larger, peace
Dress height is higher, at the aspect such as Multiple coil outlet convenience and magnetic shield, there is the contradiction for being difficult to take into account, it is impossible to be well adapted for
The good development trend of Current electronic product miniaturization, slimming, high power density and Electro Magnetic Compatibility；
Including discrete devices such as transformator, inductance and wave filter inside one switching power source device, and these devices
Main composition part is all FERRITE CORE, and existing EE, EI, ER shape magnetic core is the most frequently used shape, and these magnetic cores are occupied
Most of volume of device, simultaneously because there is opening these magnetic core both sides, Magnetic Shielding Effectiveness is poor；Existing EE, EI, ER shape
Magnetic core is all in the coiling of center pillar position, it is impossible to realize Multiple coil outlet.
Additionally, FERRITE CORE can be made into multiwinding transformer and inductance.As transformator is generally worked at high temperature, and
Heatproof air aging performance is not good at high temperature for the materials such as rubber blanket, rubber frid used in current transformator, and service life is short,
In order to improve the thermal-oxidative aging property of material, generally using ethylene propylene diene rubber as elastomeric material.However, existing ternary second
Although the third rubber synthetic material ageing-resistant performance increases, still reach to less than preferably requirement, and mechanical strength is not high.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of simple structure, easily to operate low cost, a kind of EPOI shapes
Multipurpose FERRITE CORE.
A kind of EPOI shapes multipurpose FERRITE CORE of the present invention, including two EPO shapes magnetic cores and an I piece shape core combination
Form, the EPO shapes magnetic core includes bottom surface, newel and side lower limb；The bottom surface is square, and the center column section is ellipse
Shape, the side lower limb camber simultaneously surround newel, leave lead wire outlet in newel both sides, leave between the newel and I pieces
Gap.
Preferably, the newel both sides and arc-shaped side distance are consistent.
Preferably, the total height of the EPOI shapes multipurpose FERRITE CORE is in 3-5mm.
Preferably, the bottom surface of the magnetic core is 7-9mm for the square length of side.
Preferably, the newel of the magnetic core is ellipse, and the oval short axle is 2.6-2.8mm, and major axis is
5.1-5.3mm。
Beneficial effect：There are two on same secondary magnetic core using a kind of EPOI shapes multipurpose FERRITE CORE of the present invention
Winding is exported, while using as two inductance, is capable of achieving the miniaturization of magnetic device and power supply；Core center post is ellipse
Shape, is easy to coil winding, and bigger than circular center pillar sectional area, it is possible to increase through-put power；Center pillar opening is in same direction, just
In Multiple coil outlet, the multiple-channel output of power supply is conveniently realized；With good magnetic screening effect, Radiative EMI can be reduced；
Net sectional area is more uniform everywhere for the magnetic circuit of magnetic core, can keep the concordance of magnetic flux density everywhere, will not be close due to local flux
Spend height and cause too high core loss, so as to produce temperature rise " focus ", improve the reliability of device and power supply.
It is a further object to provide a kind of ethylene-propylene-diene monomer that disclosure satisfy that ageing properties, requirement of mechanical strength
Glue formula, as the elastomeric material in EOPI shapes multipurpose FERRITE CORE multiwinding transformer of the present invention.
To achieve these goals, the invention provides it is a kind of for transformator in above-mentioned ethylene propylene diene rubber, which is heavy
Amount proportioning is as follows：10 parts of 75 parts of EPDM, IIR, 15 parts of ultra-high molecular weight polyethylene, 1 part of anti-aging agent RD, antioxidant BLE-W 1
Part, 3 parts of Zinc Oxide, 25 parts of white carbon, 40 parts of magnesium hydroxide, 5 parts of Firebrake ZB, 4 parts of paraffin oil, 1 part of turkey red oil, microwax
2 parts, 3 parts of DCP, vulcanizing agent are double 251 parts, 1 part of soda, 0.5 part of sulfur.
The present invention using post-cure method, improve product crosslinking degree, wherein the temperature of one step cure be 170 DEG C～
180 DEG C, cure time 5 '～10 '；The temperature of post vulcanization is 170 DEG C, cure time 90 '.
As IIR belongs to softening type in high temperature, and EPDM then belongs to atherosclerotic type, and both and use can reduce sizing material in high temperature
When firmness change；Ultra-high molecular weight polyethylene is with ethylene propylene diene rubber and use can improve the weatherable performance of rubber；Soda
Be conducive to accelerating curingprocess rate, improve the heat resistance of sizing material；Add soda to make system in alkalescence, the vulcanization of rubber is risen and promotes to make
With can shorten the cure time of sizing material, in addition, soda heat stability material, be conducive to improving the heat stability of sizing material；Hydroxide
Magnesium and Firebrake ZB composition halogen-free flame-retardant system, meet environmental requirement；White carbon is reinforcing agent, with turkey red oil (sulfonation Semen Ricini
Oil) resistance to elevated temperatures, mechanical strength and the resistance to water of sizing material can be improved.
Description of the drawings
Fig. 1 is a kind of EPOI shapes multipurpose ferrite overall schematic of the invention；
Wherein：1st, EPO shapes magnetic core, 2, I piece shape magnetic cores, 11, bottom surface, 12, newel, 13, side lower limb, 3, lead wire outlet.
Specific embodiment
Embodiment 1
As shown in Figure 1, there is shown, a kind of EPOI shapes multipurpose FERRITE CORE, including two EPO shapes magnetic cores and an I piece shape magnetic
Core is combined, and the EPO shapes magnetic core includes bottom surface 11, newel 12 and side lower limb 13；The bottom surface 11 for square, it is described in
12 section of stem is ellipse, and 13 camber of side lower limb simultaneously surrounds newel 12, leaves lead wire outlet in 12 both sides of newel,
Gap is left between the newel 12 and I pieces, the newel both sides and arc-shaped side distance are consistent.
In the present embodiment, and the total height of EPOI shape multipurpose FERRITE CORE in 4mm, the bottom surface of magnetic core is square
The length of side is 8mm, and the newel of the magnetic core is ellipse, and the oval short axle is 2.7mm, and major axis is 5.2mm.
Present embodiments provide a kind of EOPI shapes multipurpose FERRITE CORE, especially Switching Power Supply Multiple coil outlet
High integration magnetic core, due to the core structure and shape of the present embodiment, made by Switching Power Supply not only reduce volume, be easy to many
Line and lead-out wire between winding, and magnetic shield property has preferably been taken into account, it is capable of achieving high power density, multiple-channel output, multipurpose
Function.
Additionally, through the optimization design of overall dimensions, the uniformity consistency of magnetic circuit is maintained substantially, will not be due to local magnetic
Flux density is too high and cause core loss to increase severely, formed temperature rise " focus ", so as to efficiently control the temperature rise of device, EOPI shapes
Multi-functional ferrite core can be made into multiwinding transformer and inductance, for miniaturization, lightweight Switching Power Supply, DC-DC conversions
Device and DC-AC inverter, are widely used in fields such as communication, automotive electronics, mancarried electronic aid, LED illuminations.
Described on base, the present invention is exported with two windings on same secondary magnetic core, while use as two inductance, can
Realize the miniaturization of magnetic device and power supply；Core center post is ellipse, is easy to coil winding, and than circular center pillar sectional area
It is bigger, it is possible to increase through-put power；Center pillar opening is in same direction, is easy to Multiple coil outlet, conveniently realizes that the multichannel of power supply is defeated
Go out；With good magnetic screening effect, Radiative EMI can be reduced；Net sectional area is more uniform everywhere for the magnetic circuit of magnetic core, can
The concordance of magnetic flux density everywhere is kept, too high core loss will not be caused as local flux density is too high, so as to produce
Temperature rise " focus ", improves the reliability of device and power supply.
Embodiment 2
Above-mentioned ethylene propylene diene rubber in for transformator, weight proportion are as follows：10 parts of 75 parts of EPDM, IIR, superelevation point
15 parts of sub- weight northylen, 1 part of anti-aging agent RD, 1 part of antioxidant BLE-W, 3 parts of Zinc Oxide, 25 parts of white carbon, magnesium hydroxide 40
Part, 5 parts of Firebrake ZB, 4 parts of paraffin oil, 1 part of turkey red oil, 2 parts of microwax, 3 parts of DCP, vulcanizing agent are double 251 parts, soda 1
Part, 0.5 part of sulfur.
Vulcanized using the method for post-cure, wherein the temperature of one step cure is 170 DEG C～180 DEG C, cure time
5 '～10 '；The temperature of post vulcanization is 170 DEG C, cure time 90 '.
Comparative example
A kind of weight proportion of ethylene propylene diene rubber is as follows：100 parts of EPDM, 1 part of anti-aging agent RD, antioxidant BLE-W 1
Part, 3 parts of Zinc Oxide, 25 parts of white carbon, 40 parts of magnesium hydroxide, 5 parts of Firebrake ZB, 5 parts of paraffin oil, 2 parts of microwax, 3 parts of DCP, sulfur
Agent is double 251 parts, 0.5 part of sulfur.
Vulcanized using the method for post-cure, wherein the temperature of one step cure is 170 DEG C～180 DEG C, cure time
5 '～10 '；The temperature of post vulcanization is 170 DEG C, cure time 90 '.
Performance test is carried out to the vulcanite of embodiment 2 and comparative example, as a result such as table 1 below.
1 performance test of table
Embodiment described above is only that the preferred embodiment of the present invention is described, not the model to the present invention
Enclose and be defined, on the premise of without departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention
Various modifications and improvement that case is made, all should fall in the protection domain of claims of the present invention determination.
Claims (3)
1. a kind of transformator of use EPOI shapes multipurpose FERRITE CORE, it is characterised in that：The FERRITE CORE includes two
Individual EPO shapes magnetic core and an I piece shape core combination are formed, and the EPO shapes magnetic core includes bottom surface, newel and side lower limb；The bottom
Face is square, and the center column section is ellipse, and the side lower limb camber simultaneously surrounds newel, leaves in newel both sides
Lead wire outlet, leaves gap between the newel and I pieces；The transformator also uses a kind of ethylene propylene diene rubber, its weight to match somebody with somebody
Than as follows：EPDM75 parts, IIR10 parts, 15 parts of ultra-high molecular weight polyethylene, 1 part of anti-aging agent RD, antioxidant BLE-W1 parts, oxidation
3 parts of zinc, 25 parts of white carbon, 40 parts of magnesium hydroxide, 5 parts of Firebrake ZB, 4 parts of paraffin oil, 1 part of turkey red oil, 2 parts of microwax,
DCP3 parts, vulcanizing agent are double 251 parts, 1 part of soda, 0.5 part of sulfur.
2. transformator according to claim 1, it is characterised in that：The total height of the EPOI shapes multipurpose FERRITE CORE
In 3-5mm.
3. transformator according to claim 1, it is characterised in that：The short axle of the elliptic cross-section of the core center post is
2.6-2.8mm, major axis are 5.1-5.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957364.3A CN105374498B (en) | 2015-12-18 | 2015-12-18 | A kind of transformator of use EPOI shapes multipurpose FERRITE CORE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957364.3A CN105374498B (en) | 2015-12-18 | 2015-12-18 | A kind of transformator of use EPOI shapes multipurpose FERRITE CORE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105374498A CN105374498A (en) | 2016-03-02 |
| CN105374498B true CN105374498B (en) | 2017-04-05 |
Family
ID=55376604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510957364.3A Active CN105374498B (en) | 2015-12-18 | 2015-12-18 | A kind of transformator of use EPOI shapes multipurpose FERRITE CORE |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105374498B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986841Y (en) * | 2006-12-22 | 2007-12-05 | 联振电子(深圳)有限公司 | Choke coil |
| CN102709029A (en) * | 2012-01-31 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Ferrite magnetic core |
| CN202749179U (en) * | 2012-07-30 | 2013-02-20 | 湖北华磁电子科技有限公司 | Novel soft magnetic ferrite core |
| CN104788829A (en) * | 2015-04-19 | 2015-07-22 | 青岛康泰鑫环保科技有限公司 | Environment-friendly anti-aging plastic |
-
2015
- 2015-12-18 CN CN201510957364.3A patent/CN105374498B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105374498A (en) | 2016-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9672973B2 (en) | Wireless power transmission device | |
| CN105374498B (en) | A kind of transformator of use EPOI shapes multipurpose FERRITE CORE | |
| CN105385048B (en) | Ellipsoidal multi-purpose ferrite magnetic core and transformer | |
| CN207895953U (en) | The EMC inductance and LED illumination driving circuit of integrated differential mode common mode | |
| CN206149135U (en) | EMC filter circuit and electromagnetism stove | |
| CN215007883U (en) | High-power hybrid magnetic circuit medium-high frequency transformer | |
| CN210325449U (en) | Magnetic integration type high-power-density series-parallel planar transformer of LLC half-bridge circuit | |
| KR20190092025A (en) | Magnetic core and coil component including the same | |
| CN204068658U (en) | The integration structure of transformer and inductance | |
| CN205789464U (en) | A kind of resonance transformer | |
| CN104078219B (en) | A kind of network transformer | |
| CN205230748U (en) | Spheroidicity multipurpose ferrite core and transformer | |
| CN209516901U (en) | A kind of magnetic element transformer and power semiconductor assembly | |
| CN207883462U (en) | Wideband combined co-mode inductance | |
| WO2020119589A1 (en) | Electronic apparatus, and filter inductor for same | |
| CN207367757U (en) | A kind of transformer suitable for stage lighting power supply | |
| JP2017147288A (en) | Toroidal coil | |
| CN203850138U (en) | Emergency decree type patch type LED transformer | |
| US20200135389A1 (en) | Shield for Wireless Charging, Method of Manufacturing Same, and Wireless Charging Device Using Same | |
| CN212810012U (en) | Insulation structure of electric furnace transformer body | |
| CN211125236U (en) | Novel high-frequency transformer | |
| CN106158225B (en) | High low pass Combined Filter magnetic core, electric elements and electrical equipment | |
| CN205230690U (en) | EPOI shape multipurpose ferrite core and transformer | |
| CN208806129U (en) | A kind of new-energy automobile planar transformer | |
| CN203871154U (en) | High frequency transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Transformer using epoi shaped multipurpose ferrite core Effective date of registration: 20210813 Granted publication date: 20170405 Pledgee: Shandong Tengzhou rural commercial bank Limited by Share Ltd. SME branch Pledgor: SHANDONG JIANUO ELECTRONICS Co.,Ltd. Registration number: Y2021980007724 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220816 Granted publication date: 20170405 Pledgee: Shandong Tengzhou rural commercial bank Limited by Share Ltd. SME branch Pledgor: SHANDONG JIANUO ELECTRONICS Co.,Ltd. Registration number: Y2021980007724 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Transformer Using EPOI Shape Multipurpose Ferrite Core Effective date of registration: 20220831 Granted publication date: 20170405 Pledgee: Shandong Tengzhou Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG JIANUO ELECTRONICS Co.,Ltd. Registration number: Y2022980014184 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230103 Granted publication date: 20170405 Pledgee: Shandong Tengzhou Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG JIANUO ELECTRONICS Co.,Ltd. Registration number: Y2022980014184 |