CN105385048B - Ellipsoidal multi-purpose ferrite magnetic core and transformer - Google Patents
Ellipsoidal multi-purpose ferrite magnetic core and transformer Download PDFInfo
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- CN105385048B CN105385048B CN201510957524.4A CN201510957524A CN105385048B CN 105385048 B CN105385048 B CN 105385048B CN 201510957524 A CN201510957524 A CN 201510957524A CN 105385048 B CN105385048 B CN 105385048B
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- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 22
- 238000004804 winding Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 15
- 229920002943 EPDM rubber Polymers 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 10
- 230000004907 flux Effects 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000004513 sizing Methods 0.000 description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 description 5
- 235000017550 sodium carbonate Nutrition 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 4
- 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 description 4
- 238000004073 vulcanization Methods 0.000 description 4
- 239000005662 Paraffin oil Substances 0.000 description 3
- 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 description 3
- 230000003712 anti-aging effect Effects 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004200 microcrystalline wax Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000003679 aging effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 238000013461 design Methods 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
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 2
- 239000002699 waste material Substances 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
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 240000000528 Ricinus communis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram 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
- 230000006872 improvement Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 239000010773 plant oil Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
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- 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 an ellipsoidal multi-purpose ferrite magnetic core, which comprises two semi-elliptical spherical magnetic cores, wherein the two semi-elliptical spherical magnetic cores are subjected to pairing combination to form the ellipsoidal multi-purpose ferrite magnetic core. According to the present invention, according to the ellipsoidal multi-purpose ferrite magnetic core using the technical scheme, the same magnetic core is provided with two winding outputs so as to transmit high power, and the windings are uniformly distributed inside the spherical magnetic core so as to provide excellent magnetic shielding effect and improve the reliability of the device. The present invention further provides a transformer using the magnetic core.
Description
Technical field
The present invention relates to a kind of magnetic core of Mn-Zn soft magnetic ferrite and the transformer using this magnetic core, more particularly to a kind of ellipse
Spherical multipurpose FERRITE CORE.
Background technology
Soft magnetic ferrite is a kind of magnetic functional material, is that development China information technology, biotechnology, energy technology are contour
The important foundation material of technical field and national defense construction, is also basis and the guide of national economy, social development and national defense construction.
Soft magnetic materials is existing, and oneself becomes modern military electronic equipment, industry and the indispensable part of consumer electronic product.
It is mainly reflected in high frequency and two aspects of planarization before the development trend of magnetic technology, and with power electronics dress
The miniaturization put, the integrated of magnetic technology is also increasingly taken seriously that is to say, that needing on a secondary magnetic core to realize Multiple coil to go out
Line.
The magnetic core both-side opening of the shapes such as existing EE, EI, ER is all larger, has more winding " spilling ", and magnetic screen is imitated
Really undesirable it is easy to produce Radiative EMI.
Existing core shapes typically all have more multi-angular, and magnetic core quality itself is more crisp, easy unfilled corner when being collided
Fall block, the production efficiency of impact product, using the performance also influencing whether final products in device.
Additionally, FERRITE CORE can be made into multiwinding transformer and inductance.Because transformer generally works at high temperature, and
Used in current transformer, heatproof air aging performance is not good at high temperature for the material such as rubber blanket, rubber frid, and service life is short,
In order to improve the thermal-oxidative aging property of material, generally adopt ethylene propylene diene rubber as elastomeric material.However, existing ternary second
Although the third rubber synthetic material ageing-resistant performance increases, still reach to require less than preferable, and mechanical strength is not high.
Content of the invention
The technical problem to be solved in the present invention is to provide that a kind of structure is simple, low cost, a kind of elliposoidal easy and simple to handle
Multipurpose FERRITE CORE.
A kind of present invention elliposoidal multipurpose FERRITE CORE, including the spherical magnetic core of two semiellipses and by matching two-by-two
In conjunction with composition, described pairing two-by-two is combined into flexible connection, and the bottom surface of the spherical magnetic core of described semiellipse is ellipse, in semiellipse
Spherical magnetic core inner bottom surface is provided with two circular central posts.
Preferably, described circular central post is located in two focuses of bottom surface of ellipse.
Preferably, the two ends in the spherical magnetic core of semiellipse are provided with opening, and described opening is strip.
Preferably, the spherical bottom surface of the ellipse of the spherical magnetic core of described semiellipse and newel faying face are plane.
Preferably, described it is flexibly connected as clamping.
Beneficial effect：A kind of elliposoidal multipurpose FERRITE CORE using the present invention has two on same pair magnetic core
Winding exports, and uses simultaneously as 2 inductance, the miniaturization of achievable magnetic device and power supply；And magnetic core global shape is ellipse
Spheroidal, increases the shock-resistance features of product, and running into can be overall in magnetic core by pressure dissipation during collision, decreases the breakage of magnetic core
May；Simultaneously as magnetic flux is the same with electric current, there is Kelvin effect, so, spherical can utilize material to greatest extent
Material, will not produce the waste of material, also make an equal amount of magnetic core simultaneously, spherical can transmit bigger power, winding is equal
The even inside being distributed in spherical magnetic core, has very superior magnetic screening effect, can reduce Radiative EMI；The magnetic circuit of magnetic core
Net sectional area is more uniform everywhere, can keep the uniformity of magnetic flux density everywhere, will not draw because local flux density is too high
Playing too high core loss, thus producing the too high phenomenon of temperature rise, improve the reliability of device.
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 is filled a prescription, as the elastomeric material in elliposoidal multipurpose FERRITE CORE multiwinding transformer of the present invention.
To achieve these goals, the invention provides a kind of for the above-mentioned ethylene propylene diene rubber in transformer, it 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, double 251 parts of vulcanizing agent, 1 part of soda ash, 0.5 part of sulphur.
The present invention adopt 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 '.
Because IIR belongs to softening type in high temperature, and EPDM then belongs to constrictive type, and both and use can reduce sizing material in high temperature
When firmness change；With ethylene propylene diene rubber and use can improve the weatherable performance of rubber to ultra-high molecular weight polyethylene；Soda ash
Be conducive to accelerating curingprocess rate, improve the heat resistance of sizing material；Adding soda ash to make system is in alkalescence, the vulcanization of rubber is risen with promotion and makees
With the cure time of sizing material can be shortened, in addition, soda ash heat endurance material, be conducive to improving the heat endurance 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 castor-oil plant
Oil) resistance to elevated temperatures, mechanical strength and the resistance to water of sizing material can be improved.
Brief description
Fig. 1 is a kind of present invention elliposoidal multipurpose FERRITE CORE overall schematic
Fig. 2 is that a kind of present invention elliposoidal multipurpose FERRITE CORE coordinates coil schematic diagram
Wherein：1st, the spherical magnetic core of semiellipse, 2, bottom surface, 3, newel, 4, opening.
Specific embodiment
Embodiment 1
As shown in Figure 1 and Figure 2, it is an object of the invention to provide a kind of elliposoidal multipurpose FERRITE CORE, including two
The spherical magnetic core of semiellipse 1 simultaneously combines composition by pairing two-by-two, and described pairing two-by-two is combined into flexible connection, described semiellipse ball
The bottom surface of shape magnetic core is ellipse, is provided with two circular central posts 3, described circle in the spherical magnetic core of semiellipse 1 inner bottom surface 2
Shape newel 3 is located in two focuses of bottom surface 2 of ellipse；It is provided with opening 4 in the two ends of the spherical magnetic core of semiellipse 1, described
Opening 4 is strip, and the spherical bottom surface of the ellipse of the spherical magnetic core of described semiellipse 1 and newel 3 faying face are plane at this
In embodiment, this elliposoidal multipurpose FERRITE CORE, by the optimization design through appearance and size, maintains the equal of magnetic circuit substantially
Even uniformity, will lead to core loss to increase severely because local flux density is too high, form temperature rise " focus ", thus effectively
Control the temperature rise of device；And elliposoidal multipurpose FERRITE CORE can be made into multiwinding transformer and inductance, for minimizing,
Lightweight circuit power, dc-dc and DC-AC inverter, in communication, automotive electronics, mancarried electronic aid, LED illumination
In field.
In the present embodiment, this elliposoidal multipurpose FERRITE CORE has two winding outputs on same pair magnetic core,
Use simultaneously as two inductance, the miniaturization of achievable magnetic device and power supply；And magnetic core global shape is oval spherical, increase
The big shock-resistance features of product, running into can be overall in magnetic core by pressure dissipation during collision, and the breakage that decrease magnetic core may；With
When, because magnetic flux is the same with electric current, there is Kelvin effect, so, spherical can utilize material to greatest extent, will not produce
The waste of green material, also makes an equal amount of magnetic core simultaneously, spherical can transmit bigger power, winding is evenly distributed on ball
The inside of shape magnetic core, has very superior magnetic screening effect, can reduce Radiative EMI；The magnetic circuit of magnetic core effectively cuts everywhere
Area is more uniform, can keep the uniformity of magnetic flux density everywhere, will not cause too high magnetic core because local flux density is too high
Loss, thus producing the too high phenomenon of temperature rise, improves the reliability of device.
Described on base, described be flexibly connected as clamping, the spherical magnetic core of two such semiellipse just can as needed, at any time
Link together, and when need maintenance or out of order when it is possible to very easily open；Structure is simple, uses
Convenient.
Embodiment 2
For the above-mentioned ethylene propylene diene rubber in transformer, weight proportion is as follows：10 parts of 75 parts of EPDM, IIR, superelevation is divided
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, double 251 parts of vulcanizing agent, soda ash 1
Part, 0.5 part of sulphur.
Method using post-cure is vulcanized, and 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, sulphur
Double 251 parts of agent, 0.5 part of sulphur.
Method using post-cure is vulcanized, and 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 vulcanized rubber of embodiment 2 and comparative example, result such as table 1 below.
Table 1 performance test
Embodiment described above is only that the preferred embodiment of the present invention is described, the not model to the present invention
Enclose and be defined, on the premise of without departing from design spirit of the present invention, the technical side to the present invention for the those of ordinary skill in the art
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 elliposoidal multipurpose FERRITE CORE it is characterised in that：Including the spherical magnetic core of two semiellipses and by two-by-two
Pairing combines composition, and described pairing two-by-two is combined into flexible connection, and the bottom surface of the spherical magnetic core of described semiellipse is ellipse, in half
Oval spherical magnetic core inner bottom surface is provided with two circular central posts, and described circular central post is located at two of the bottom surface of ellipse
In focus, it is provided with opening in the two ends of the spherical magnetic core of semiellipse, the bottom surface of the spherical magnetic core of described semiellipse and newel faying face
For plane.
2. a kind of elliposoidal multipurpose FERRITE CORE according to claim 1 it is characterised in that：Described opening is strip
Shape.
3. according to claim 1 a kind of elliposoidal multipurpose FERRITE CORE it is characterised in that：Described it is flexibly connected as card
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957524.4A CN105385048B (en) | 2015-12-18 | 2015-12-18 | Ellipsoidal multi-purpose ferrite magnetic core and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510957524.4A CN105385048B (en) | 2015-12-18 | 2015-12-18 | Ellipsoidal multi-purpose ferrite magnetic core and transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105385048A CN105385048A (en) | 2016-03-09 |
| CN105385048B true CN105385048B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510957524.4A Active CN105385048B (en) | 2015-12-18 | 2015-12-18 | Ellipsoidal multi-purpose ferrite magnetic core and transformer |
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| Country | Link |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365738C (en) * | 2005-01-26 | 2008-01-30 | 上海磁浮交通工程技术研究中心 | Medium voltage winding cable for electric generator, motor and transformer |
| CN202564008U (en) * | 2012-05-11 | 2012-11-28 | 湖南谦益电子科技有限公司 | Elliptic combined ferrite magnetic core |
| CN203055608U (en) * | 2012-12-27 | 2013-07-10 | 娄底市利通磁电科技有限公司 | Ferrite magnetic core |
| CN204834284U (en) * | 2015-08-26 | 2015-12-02 | 乐清市精密电子电器有限公司 | Anti burst short circuit transformer |
| CN205230748U (en) * | 2015-12-18 | 2016-05-11 | 山东嘉诺电子有限公司 | Spheroidicity multipurpose ferrite core and transformer |
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2015
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