CN202352465U - Low-frequency electrodeless lamp outer coupler magnetic core with shielding support - Google Patents
Low-frequency electrodeless lamp outer coupler magnetic core with shielding support Download PDFInfo
- Publication number
- CN202352465U CN202352465U CN2011204884200U CN201120488420U CN202352465U CN 202352465 U CN202352465 U CN 202352465U CN 2011204884200 U CN2011204884200 U CN 2011204884200U CN 201120488420 U CN201120488420 U CN 201120488420U CN 202352465 U CN202352465 U CN 202352465U
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- China
- Prior art keywords
- magnetic core
- ring body
- electrodeless lamp
- frequency electrodeless
- magnetic ring
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- Expired - Fee Related
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Abstract
The utility model discloses a low-frequency electrodeless lamp outer coupler magnetic core with a shielding support. The low-frequency electrodeless lamp outer coupler magnetic core with the shielding support comprises a magnetic ring body (1). An electromagnetic induction coil (2) is wound on the magnetic ring body (1). The low-frequency electrodeless lamp outer coupler magnetic core with the shielding support additionally comprises the shielding support (3). The magnetic ring body (1) and the electromagnetic induction coil (2) are embedded in the shielding support (3). The low-frequency electrodeless lamp outer coupler magnetic core with the shielding support has the advantages that the leakage of an electromagnetic field can be effectively prevented, the magnetic core is convenient to install and disassemble, a lamp tube can be effectively protected and the service life of the lamp tube is prolonged; and moreover, the Curie temperature is high, the strength is high, the hardness is high, the toughness is good, the magnetic permeability is high, the saturation flux density is high, and the resistivity is high.
Description
Technical field
The utility model relates to a kind of low frequency electrodeless lamp external coupler magnetic core with shield bracket.
Background technology
Low frequency power about the 250KHz of low frequency electromagnetic induction non-polar electronic ballast for fluoresent lamp output; Be coupled to driving lamp luminescence in the fluorescent tube through outer electromagnetic coupler with way of electromagnetic induction, the magnetic core performance of external coupler is the critical component that is related to whole conversion efficiency and reliability.
The fluorescent lamp of low frequency electromagnetic induction both at home and abroad is Ferrite Material with the magnetic core of external coupler at present; There is following defective in its material characteristic: the one, and permeability is low, saturation induction density is low; Core size is big and heavy, and the fluorescent tube load is high, and fluorescent tube is prone to produce broken fault when meeting strong vibration; Block the effective radiation of part light simultaneously, had influence on the whole light efficiency of fluorescent tube; The 2nd, Curie temperature is low, is generally about 230 degree, has limited power of lamp tube and working temperature, and many light fixtures are closed type, and the temperature rise accumulation in case reach the material Curie temperature, just can produce magnetic saturation and burn the transistorized fault of ballast output power in the light fixture; The 3rd, the ferrite own loss is big, and efficient is low, produces harmful heat, has influence on whole conversion efficiency and fluorescent material life-span; The 4th, ferrite matter is hard, crisp, in assembling, maintenance process, does not note slightly, just might be broken, and damaged probability is high.
In addition, the prior art middle magnetic ring is fixed with aluminium type material double team external diameter, and exposed magnet ring both sides cause electromagnetic field to reveal, and are prone to produce electromagnetic interference.
Because the low frequency electrodeless lamp major applications is in public illumination, so operational environment is complicated, especially is installed in the low frequency electrodeless lamp of both sides of highway, usually because the vibration that vehicle produces causes fluorescent tube to break.
The utility model content
The purpose of the utility model is, a kind of low frequency electrodeless lamp external coupler magnetic core with shield bracket is provided, and it can prevent effectively that electromagnetic field from leaking, and is convenient to installation and removal, can also effectively protect fluorescent tube, the useful life of prolonging lamp tube.Have also in addition that Curie temperature height, intensity are high, hardness is high, good toughness, permeability is high, saturation induction density is high, resistivity is high advantage.
The technical scheme of the utility model: a kind of low frequency electrodeless lamp external coupler magnetic core with shield bracket, comprise magnetic ring body, be wound with electromagnetic induction coil on the magnetic ring body, also comprise shield bracket, magnetic ring body and electromagnetic induction coil all are embedded in the shield bracket.
In the low frequency electrodeless lamp external coupler magnetic core of aforesaid band shield bracket, magnetic ring body is combined by 2 the 180 semicircle magnetic cores of degree.Adopt this design to be convenient to the dismounting and the installation of magnetic ring body.
In the low frequency electrodeless lamp external coupler magnetic core of aforesaid band shield bracket; Said shield bracket comprises semicircle upper bracket and semicircle lower carriage; One end of semicircle upper bracket and semicircle lower carriage is hinged through hinge; The other end connects through bolt, and the bottom of semicircle lower carriage is provided with mount pad; The both sides of semicircle upper bracket and semicircle lower carriage are equipped with side shielding baffle plate.
In the low frequency electrodeless lamp external coupler magnetic core of aforesaid band shield bracket, said magnetic ring body and shield bracket all adopt the amorphous nano-crystalline material to process.
In the low frequency electrodeless lamp external coupler magnetic core of aforesaid band shield bracket, the inwall of magnetic ring body is provided with damping pad.Damping pad is set prevents fluorescent tube owing to vibrate fragmentation, the effectively useful life of prolonging lamp tube.
In the low frequency electrodeless lamp external coupler magnetic core of aforesaid band shield bracket, said damping pad adopts silica gel or rubber to process.
In the low frequency electrodeless lamp external coupler magnetic core of aforesaid band shield bracket, fillet is all adopted in the inside and outside corner of magnetic ring body.Adopt this design can overcome the defective that traditional an angle of 90 degrees is prone to produce electromagnetic radiation.
Aforesaid amorphous nano-crystalline material is a well known materials, can on market, buy acquisition.
Compared with prior art, the utility model is because the magnetic ring body that has adopted the amorphous nano-crystalline material to process makes magnetic ring body possess excellent mechanical characteristic, and yield strength is high, hardness is high, toughness is better than Ferrite Material; Possess the electromagnetism characteristic that low frequency electrodeless fluorescent lamp coupler needs, permeability is high, saturation induction density is high, resistivity is high; Possess decay resistance and high Curie temperature that outside work needs, have good temperature stability.
In addition compared with prior art, the permeability of the utility model improves more than 5 times, and core size can reduce 50%, has reduced the shading area; Weight has reduced by 50%, has alleviated the fluorescent tube load capacity; Curie temperature is brought up to more than 320 degree by 230 degree, and permeability does not change with variations in temperature, and electrodeless lamp stability is improved greatly; Tensile strength improves more than 20 times, and corrosion resisting property is superior to stainless steel, the reasonable problem that has solved the Ferrite Material existence.
Owing to be provided with the total incapsulation shield bracket that the amorphous nano-crystalline material is processed, magnetic ring body is fixing with electromagnetic induction coil shielding back, change at present with the fixing aluminium section bar support of magnetic core.Because the Curie temperature of amorphous nano-crystalline material also has good permeability more than 300 degree, can shield electromagnetic field that coupler leaks out effectively to space radiation, reduce the electromagnetic interference that electric ballast produces.
Because fillet is all adopted in the inside and outside corner of magnetic ring body, overcome the defective that traditional an angle of 90 degrees is prone to produce electromagnetic radiation.
Owing on the inwall of magnetic ring body, be provided with damping pad, effectively protect fluorescent tube, prevent that it from owing to vibration is broken, effectively prolonging its useful life.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the structural representation of shield bracket;
Fig. 3 is that the magnetic ring body corner is the structural representation of fillet.
Being labeled as in the accompanying drawing: 1-magnetic ring body, 2-electromagnetic induction coil, 3-shield bracket, the semicircle upper bracket of 4-, the semicircle lower carriage of 5-, 6-hinge, 7-bolt, 8-mount pad, 9-side shielding baffle plate, 10-damping pad.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to specify, but not as the foundation of the utility model being done any restriction.
The embodiment 1 of the utility model: as shown in Figure 1; A kind of low frequency electrodeless lamp external coupler magnetic core with shield bracket comprises magnetic ring body 1, is wound with electromagnetic induction coil 2 on the magnetic ring body 1; Also comprise shield bracket 3, magnetic ring body 1 all is embedded in the shield bracket 3 with electromagnetic induction coil 2.Magnetic ring body 1 is combined by 2 the 180 semicircle magnetic cores of degree.The inwall of magnetic ring body 1 is provided with damping pad 10.Said damping pad 10 adopts rubber to process.
As shown in Figure 2, shield bracket 3 comprises semicircle upper bracket 4 and semicircle lower carriage 5, and an end of semicircle upper bracket 4 and semicircle lower carriage 5 is hinged through hinge 6, and the other end connects through bolt 7, and the bottom of semicircle lower carriage 5 is provided with mount pad 8; The both sides of semicircle upper bracket 4 and semicircle lower carriage 5 are equipped with side shielding baffle plate 9.
Said magnetic ring body 1 all adopts the amorphous nano-crystalline material to process with shield bracket 3.
As shown in Figure 3, fillet is all adopted in magnetic ring body 1 inside and outside corner.
The embodiment 2 of the utility model: as shown in Figure 1; A kind of low frequency electrodeless lamp external coupler magnetic core with shield bracket comprises magnetic ring body 1, is wound with electromagnetic induction coil 2 on the magnetic ring body 1; Also comprise shield bracket 3, magnetic ring body 1 all is embedded in the shield bracket 3 with electromagnetic induction coil 2.Magnetic ring body 1 is combined by 2 the 180 semicircle magnetic cores of degree.The inwall of magnetic ring body 1 is provided with damping pad 10.Said damping pad 10 adopts silica gel to process.
As shown in Figure 2, shield bracket 3 comprises semicircle upper bracket 4 and semicircle lower carriage 5, and an end of semicircle upper bracket 4 and semicircle lower carriage 5 is hinged through hinge 6, and the other end connects through bolt 7, and the bottom of semicircle lower carriage 5 is provided with mount pad 8; The both sides of semicircle upper bracket 4 and semicircle lower carriage 5 are equipped with side shielding baffle plate 9.
Said magnetic ring body 1 all adopts the amorphous nano-crystalline material to process with shield bracket 3.
As shown in Figure 3, fillet is all adopted in magnetic ring body 1 inside and outside corner.
Employed amorphous nano-crystalline material can be bought acquisition in the foregoing description on market.
The method for using of the utility model: at first unclamp the bolt 7 on the shield bracket 3; The semicircular magnetic core that will be wound with electromagnetic induction coil then is installed in the semicircle lower carriage 5; Another semicircular magnetic core is installed in the semicircle upper bracket 4, fluorescent tube is put into spent for 2 180 between the semicircle magnetic core then, then semicircle upper bracket 4 is closed up with semicircle lower carriage 5; And be fixed through bolt 7, then with the mount pad 8 on the semicircle lower carriage 5 through being bolted in the lampshade.
Claims (7)
1. low frequency electrodeless lamp external coupler magnetic core with shield bracket; Comprise magnetic ring body (1); Be wound with electromagnetic induction coil (2) on the magnetic ring body (1), it is characterized in that: also comprise shield bracket (3), magnetic ring body (1) and electromagnetic induction coil (2) all are embedded in the shield bracket (3).
2. the low frequency electrodeless lamp external coupler magnetic core of band shield bracket according to claim 1 is characterized in that: magnetic ring body (1) is combined by 2 the 180 semicircle magnetic cores of degree.
3. the low frequency electrodeless lamp external coupler magnetic core of band shield bracket according to claim 1; It is characterized in that: said shield bracket (3) comprises semicircle upper bracket (4) and semicircle lower carriage (5); One end of semicircle upper bracket (4) and semicircle lower carriage (5) is hinged through hinge (6); The other end connects through bolt (7), and the bottom of semicircle lower carriage (5) is provided with mount pad (8); The both sides of semicircle upper bracket (4) and semicircle lower carriage (5) are equipped with side shielding baffle plate (9).
4. the low frequency electrodeless lamp external coupler magnetic core of band shield bracket according to claim 3 is characterized in that: said magnetic ring body (1) and shield bracket (3) all adopt the amorphous nano-crystalline material to process.
5. the low frequency electrodeless lamp external coupler magnetic core of band shield bracket according to claim 4 is characterized in that: the inwall of magnetic ring body (1) is provided with damping pad (10).
6. the low frequency electrodeless lamp external coupler magnetic core of band shield bracket according to claim 5 is characterized in that: said damping pad (10) adopts silica gel or rubber to process.
7. the low frequency electrodeless lamp external coupler magnetic core of band shield bracket according to claim 1 is characterized in that: fillet is all adopted in the inside and outside corner of magnetic ring body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204884200U CN202352465U (en) | 2011-11-30 | 2011-11-30 | Low-frequency electrodeless lamp outer coupler magnetic core with shielding support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204884200U CN202352465U (en) | 2011-11-30 | 2011-11-30 | Low-frequency electrodeless lamp outer coupler magnetic core with shielding support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352465U true CN202352465U (en) | 2012-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204884200U Expired - Fee Related CN202352465U (en) | 2011-11-30 | 2011-11-30 | Low-frequency electrodeless lamp outer coupler magnetic core with shielding support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202352465U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474197A (en) * | 2013-09-26 | 2013-12-25 | 昆山佑翔电子科技有限公司 | Magnet ring |
| CN104377024A (en) * | 2014-12-11 | 2015-02-25 | 厦门振泰成科技有限公司 | Rapidly-saturable current transformer |
| CN104577599A (en) * | 2015-01-20 | 2015-04-29 | 浙江晨辉光宝科技有限公司 | Straight type modulator tube socket |
| CN105738675A (en) * | 2014-12-26 | 2016-07-06 | 甲神电机株式会社 | Holder for saturable magnetic core, holding method and magnetic flux gate current transducer |
| CN110690022A (en) * | 2019-11-11 | 2020-01-14 | 安徽昭田电子科技有限公司 | Assembled magnetic core and production process thereof |
-
2011
- 2011-11-30 CN CN2011204884200U patent/CN202352465U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474197A (en) * | 2013-09-26 | 2013-12-25 | 昆山佑翔电子科技有限公司 | Magnet ring |
| CN104377024A (en) * | 2014-12-11 | 2015-02-25 | 厦门振泰成科技有限公司 | Rapidly-saturable current transformer |
| CN105738675A (en) * | 2014-12-26 | 2016-07-06 | 甲神电机株式会社 | Holder for saturable magnetic core, holding method and magnetic flux gate current transducer |
| CN105738675B (en) * | 2014-12-26 | 2020-04-10 | 甲神电机株式会社 | Saturable core holder, saturable core fixing method and fluxgate current sensor |
| CN104577599A (en) * | 2015-01-20 | 2015-04-29 | 浙江晨辉光宝科技有限公司 | Straight type modulator tube socket |
| CN104577599B (en) * | 2015-01-20 | 2016-09-07 | 浙江晨辉光宝科技有限公司 | A kind of straight light tube socket |
| CN110690022A (en) * | 2019-11-11 | 2020-01-14 | 安徽昭田电子科技有限公司 | Assembled magnetic core and production process thereof |
| CN110690022B (en) * | 2019-11-11 | 2021-06-08 | 安徽昭田电子科技有限公司 | Assembled magnetic core and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |