CN103363325B - A kind of anti-electromagnetic interference light fixture - Google Patents
A kind of anti-electromagnetic interference light fixture Download PDFInfo
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- CN103363325B CN103363325B CN201210089862.7A CN201210089862A CN103363325B CN 103363325 B CN103363325 B CN 103363325B CN 201210089862 A CN201210089862 A CN 201210089862A CN 103363325 B CN103363325 B CN 103363325B
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- light fixture
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Abstract
A kind of anti-electromagnetic interference light fixture, comprise: the lamp body shell of a metal material, be located at the light source in lamp body shell and be connected to the cable on lamp body shell, on lamp body shell, be provided with an opening, on lamp body shell, be also provided with the transparent member of a sealing opening, the inner side of transparent member is also provided with the screen cloth of a metal material, screen cloth covers the opening of lamp body shell completely, to be encircled into the electromagnetic metallic shield of a shielding with lamp body shell; Anti-electromagnetic interference light fixture also comprises a filtering unit, filtering unit comprises: a filtering unit shell and a wave filter of being located in filtering unit shell, filtering unit shell is fixed on lamp body shell, the output of wave filter is by an output cable access lamp body shell, the input of wave filter is connected with external power source by an input cable, this anti-electromagnetic interference light fixture has solved light fixture because being subject to the problem of electromagnetic interference and Conduction Interference cisco unity malfunction, and simple in structure, cost is low, easy for installation.
Description
Technical field
The present invention relates to a kind of lighting, relate in particular to a kind of light fixture of anti-electromagnetic interference.
Background technology
Conventionally, the form of electromagnetism interruption of light fixture has radiation interference and two kinds of forms of Conduction Interference. In existing light fixture, the metal shell of light fixture has good electromagnetic radiation shielding interference effect, but for the light direction of light fixture, but can not arrange cannot printing opacity metalwork resist radiation interference with metal shell formation closed metal cover; Meanwhile, in the power supply of input light fixture, also exist part to disturb harmonic wave, make the electromagnetism Interference of lamps constituting a pair. Ordinary lamp and lantern is once work in stronger electromagnetic interference environment, tends to occur, from faults such as putting out, cannot start, can not meeting field demand due to electromagnetic radiation and Conduction Interference, caused inconvenience to use.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiency that above-mentioned prior art exists, and proposes a kind of simple in structure, anti-electromagnetic interference light fixture that cost is low, easy to install.
For solving the problems of the technologies described above, the present invention proposes a kind of anti-electromagnetic interference light fixture, comprise: the lamp body shell of a metal material and be located at the light source in described lamp body shell, on described lamp body shell, be provided with an outwards opening for ejaculation of light that described light source is sent, on described lamp body shell, be also provided with the transparent member of the described opening of a sealing, the inner side of described transparent member is also provided with the screen cloth of a metal material, described screen cloth covers the opening of described lamp body shell completely, to be encircled into the electromagnetic metallic shield of a shielding with described lamp body shell; Described anti-electromagnetic interference light fixture also comprises a filtering unit, described filtering unit comprises: a filtering unit shell and is located at the wave filter in described filtering unit shell, described filtering unit shell is fixed on described lamp body shell, described wave filter has an input and an output, output accesses in described lamp body shell by an output cable, and input is connected with external power source by an input cable.
Preferably, described lamp body shell comprises: the protecgulum and that the lamp body housing main body, of establishing cavity in one is arranged on described lamp body housing main body front end is arranged on the bonnet of described lamp body housing main body rear end, described light source is arranged in the cavity of described lamp body housing main body, and described opening is opened on described protecgulum.
Preferably, the opening surrounding of described protecgulum is equipped with a circle draw-in groove, and described transparent member is installed in described draw-in groove, between described draw-in groove and described transparent member, is also provided with sealing ring.
Preferably, described transparent member is sheet, its by one end to other end bending.
Preferably, the shape of described screen cloth is identical with the shape of described transparent member, its parallel with described transparent member and stacked placement.
Preferably, the surrounding of described screen cloth is fixed by multiple securing members and described protecgulum, described securing member comprises: the compressing tablet of a metal material and a screw, described compressing tablet is L-type or Z-type, one end of described compressing tablet is pressed on described screen cloth, the other end described protecgulum of conflicting, described screw is locked on described protecgulum in the lump through described compressing tablet and described screen cloth.
Preferably, described filtering unit shell comprises: the box body of an end opening and lid are located at the lid at described box opening place, described wave filter is placed in described box body, the two sides of described box body have the cable-through hole that supplies described input cable and output cable to pass, and in each cable-through hole, are respectively arranged with wire bushing.
Preferably, described lid is fixed by screws on described box body, is provided with the through hole passing for screw on described lid, is provided with the double-screw bolt of the described screw of locking in described box body.
Preferably, described filtering unit shell is arranged on described lamp body shell by an installing rack.
Preferably, described transparent member is Pyrex material.
Compared with prior art, beneficial effect of the present invention comprises: 1, the application's light fixture covers the opening of lamp body shell completely by the screen cloth of a metal material is set on lamp body shell, and be encircled into the electromagnetic metallic shield of a shielding with described lamp body shell, the effectively electromagnetic interference of shielding; And at the power input of light fixture, filter assembly filtration harmonic wave is set, effectively shield electromagnetism Interference; The application's light fixture has solved the problem of light fixture radiation interference and Conduction Interference simultaneously, has ensured the normal work of light fixture. 2, the mesh structure that the application provides is simple, and cost is low, easy for installation. 3, the application carrys out protecting filter by filtering unit shell is set, and has strengthened reliability, and this wave filter is together installed on the installing rack outside light fixture together with filtering unit shell, the dismounting while having facilitated maintain and replace.
Brief description of the drawings
Fig. 1 is the structure exploded perspective view of the anti-electromagnetic interference light fixture of the present invention.
Fig. 2 is the texture edge cutaway view of the anti-electromagnetic interference light fixture of the present invention.
Detailed description of the invention
In order to further illustrate principle of the present invention and structure, existing by reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
Consult Fig. 1 and Fig. 2, anti-electromagnetic interference light fixture of the present invention, comprises light source 1, lamp body shell 2, transparent member 31, screen cloth 5 and filtering unit 4.
Consult Fig. 1 and Fig. 2, lamp body shell 2 is by lamp body housing main body 21, bonnet 22 and protecgulum 23 form, its material is metal material, this lamp body housing main body 21 is to be surrounded and formed by the sheet metal with certain thickness and width, lamp body housing main body 21 after surrounding forms a cavity, light source 1 is fixedly arranged in this cavity, lamp body housing main body 21 has front-end and back-end, in broad ways, there is certain inclination angle from this front end to rear end, form a trapezoidal centrum, lamp body housing main body 21 front end faces are a relatively large-sized square anchor ring, rear end face is a relatively undersized square anchor ring, side profile is projected as trapezoidal, lamp body housing main body 21 is respectively provided with 2 place's elastic cards 211 in outer top surface and bottom surface near front end, elastic card 211 can clamp being positioned at lamp body housing main body 21 object and lamp body housing main body 21 above. the bowl structure that bonnet 22 forms for having certain thickness sheet metal, the shape and size of its rim of a bowl and these lamp body housing main body 21 rear end faces are suitable, the rim of a bowl of bonnet 22 is fixedly connected with lamp body housing main body 21 rear end faces, this connection can be the connection of the forms such as welding, screwing or riveted joint, after connecting, form a housing, the surrounding of this housing and be metallic walls sealing below. protecgulum 23 is the metalwork of square box shape, have surrounding frame, centre is an opening 233, and the upper and lower frame of protecgulum 23 protrudes forward respectively and forms arc shelves cover 231, it is curved that protecgulum 23 outline top projections are covered 231 places at arc shelves, by one side frame to the bending of opposite side frame. this protecgulum 23 is also provided with a circle draw-in groove 232 of establishing along the surrounding ring of this opening at surrounding frame medial surface, the surrounding frame of this protecgulum 23 also offers screwed hole on light fixture inner side, screw hole arrangement, in the drift angle along each frame and each frame centre position, is preferably eight places. this protecgulum 23 is located at the front end of lamp body housing main body 21, and clamps with lamp body housing main body 21 by the elastic card 211 on lamp body housing main body 21. formation lamp body shell 2 after this lamp body housing main body 21, bonnet 22 and protecgulum 23 fix, the opening 233 of this protecgulum 23 is the opening 233 of lamp body shell 2, and the light that light source 1 sends outwards penetrates through the opening 233 on protecgulum 23.
Consult Fig. 1 and Fig. 2, light fixture of the present invention is also provided with a transparent member 31 and a sealing ring 32, and transparent member 31 is Pyrex material, has good light transmission, and it is shaped as arc-shaped flaky, its by a side to another side bending. Sealing ring 32 is frame shape, there is surrounding frame, its upper and lower frame is from a side frame to the bending of opposite side frame, the crooked radian of this crooked radian and transparent member 31 is suitable, both sides frame is vertical, the surrounding frame medial surface of sealing ring 32 is recessed to form a seal groove 321, and sealing groove 321 distributes along the surrounding frame medial surface complete cycle of sealing ring 32, and its width is slightly larger than the thickness of this transparent member 31. Transparent member 31 is installed in the seal groove 321 of sealing ring 32 and packs into together with sealing ring in the draw-in groove 232 on the protecgulum 23 of lamp body shell 2. Sealing ring 32 frames are forward against the arc shelves cover 231 of living protecgulum 23, and the free degree of its upper and lower, left and right direction is all limited by protecgulum 23, and now transparent member 31 is by the opening of lamp body shell, and the opening 233 on protecgulum 23 seals completely. Because transparent member 31 is nonmetallic materials, do not there is electromagnetic shielding action, the light source 1 in lamp body shell 2 cannot avoid being subject to the interference of electromagnetic radiation.
Consult Fig. 1 and Fig. 2, the net that screen cloth 5 of the present invention is made up of wire, it can be standard component, the type selecting of screen cloth should be considered shield effectiveness and the light transmittance of screen cloth, consider again intensity and the thickness of screen cloth, conventionally can determine according to environmental disturbances wave frequency scope the wire thickness of screen cloth, size and the quantity etc. of grid. After screen cloth 5 type selectings are complete, be cut into the shape suitable with transparent member 31 and size, and then its bending is gone out to the radian suitable with transparent member 31, screen cloth 5 sizes after bending should be slightly less than the size of transparent member 31; Screen cloth 5 is close to transparent member 31 is in parallel and stacked to be positioned in sealing ring 32, now screen cloth 5 is positioned at outside the seal groove 321 on sealing ring 32, and the upper and lower, left and right direction of screen cloth 5 is the surrounding frame restriction of sealed circle 32 all. For fixed grit 5, the present invention adopts multiple securing members that screen cloth 5 is fixing with protecgulum 23, this securing member comprises compressing tablet 33 and a screw 34 of a metal material, compressing tablet 33 is L-type or Z-type, on its one end, have through hole, compressing tablet 33 has the medial surface of one end conflict protecgulum 23 of through hole, and its other end contacts and compress screen cloth 5, and screw is through the through hole on this compressing tablet 33 and corresponding the tightening of screwed hole on protecgulum 23. Preferred securing member is eight, thereby screen cloth is locked to the inner side of protecgulum 23. Now, screen cloth 5 covers the opening of lamp body shell 2 completely, be encircled into a metallic shield with lamp body shell 2, space in lamp body shell 2 forms an enclosure space relatively being surrounded by metal material, simultaneously, screen cloth 5 contacts with metalized lamp body case 2 by metal sheeting 33, has ensured the reliable ground of screen cloth 5, thereby has effectively shielded electromagnetic interference.
Consult Fig. 1, filtering unit 4 of the present invention comprises: wave filter 42, filtering unit shell 43, double-screw bolt 45, wire bushing 44 and lock-screw 46.
Consult Fig. 1, filtering unit shell 43 is made up of box body 431 and lid 432, and box body 43 is metal cuboid, and its one end is provided with opening, and lid 432 is arranged on the opening part of box body and seals this opening. on the arranged on left and right sides plate of box body 431, all offer cable-through hole, wire bushing 44 is housed respectively in two cable-through holes, wire bushing 44 is the column type sleeve of silicon rubber, rubber or plastic material, cylindrical sleeves one end is provided with diameter and is greater than this column type diameter and the limited step coaxial with it, cable-through hole on the column part of left and right two wire bushings 44 and box body left and right side plate is interference fit, the limited step of left and right two wire bushings 44 is respectively against the left and right side of box body 431, thereby prevents that wire bushing 44 from dropping out in cable-through hole. on box body 431 base plates, have five through holes, wherein two through holes are located at the base plate centre position of box body 431, be located at one end for two, be located at the other end for one, between the through hole of two of one end, there is certain distance, be greater than the diameter of cable 41, corresponding, the lid 432 that lid is located at box body 431 opening parts is rectangle metallic plate, on it, also offer the lead to the hole site at two ends on corresponding box body 431 base plates of three through holes, corresponding double-screw bolt 45 and the through hole at two ends on box body 431 base plates and corresponding with this through hole on 432 of being also provided with, double-screw bolt 45 is cylinder or hexagonal headpin, this double-screw bolt quantity is three, the two ends of this double-screw bolt 45 offer respectively coaxial screwed hole, the height of double-screw bolt 45 is slightly less than the height of box body 43 internal cavities.
Consult Fig. 1, on wave filter 42, be provided with installing hole, wave filter 42 is arranged in box body 431 by this installing hole. Wave filter 42 two ends are respectively arranged with input 421 and output 422, input 421 is connected with external power source (not shown) by an input cable (not shown), output 422 accesses in lamp body shell 2 by an output cable 41, input cable and the output cable 41 respectively wire bushing 44 from the left and right side of box body 431 penetrate and are connected with input, the output of wave filter 42, thereby by wave filter filtering the clutter of lamp power signal, solved Conduction Interference problem.
Consult Fig. 1 and Fig. 2, lamp body shell 2 outsides are also provided with an installing rack 6 being arranged on lamp body shell 2, and installing rack 6 is provided with the through hole of installing for filtering unit 4, and filtering unit 4 is arranged on lamp body shell 2 by this installing rack 6.
Consult Fig. 1, when filtering unit 4 is installed, first 3 screws are connected with the screwed hole of double-screw bolt 45 one end through the through hole at two ends these box body 43 base plates from box body 431 plate outer sides, so 3 double-screw bolts 45 are just fixed in box body 431, again one end of output cable 41 is accessed in box body 431 through one end wire bushing 44 and the output 422 with three wires is connected with wave filter 42, one end of input cable (not shown) accesses in box body 431 through another place's wire bushing 44 and the input 421 with two wires is connected with wave filter 42, then pass successively the installing hole on wave filter 42 with a screw, through hole on box body 431 base plates in 2 through holes in centre position 1 and installing rack and nut coordinate wave filter 42 are fixed in box body 431, and be fixed on together with box body 431 on installing rack 6, another screw coordinates box body 431 is fixed on installing rack 6 through the through hole on another and installing rack 6 in 2 through holes in centre position on box body 431 base plates and nut, cover again lid 432, 3 double-screw bolts 45 that 3 through hole correspondences on lid 432 have fixedly mounted in box body 431, be connected with the screwed hole of double-screw bolt 45 other ends through 3 through holes on lid 432 with lock-screw 46, just lid 432 is fixed on box body 431, finally, by the other end access lamp body shell 2 of wave filter output cable 41, the input cable (not shown) other end is connected with external power source, has just completed the installation of filtering unit 4 of the present invention.
To sum up, the present invention by setting up metallic shield guard screen cloth 5 and being encircled into a metallic shield with lamp body shell 2 on lamp body shell 2, be fixed to ensure screen cloth 5 reliable grounds by metal sheeting 33, solve radiation interference problem with this, by set up the filtering unit 4 that includes filtering unit shell 43 and wave filter 42 at the power input of light source, solve Conduction Interference problem, improved greatly thus the anti-electromagnetic interference capability of light fixture, and simple and practical.
The foregoing is only better possible embodiments of the present invention; not limit the scope of the invention; filtering unit 4 of the present invention can not adopt the mode being arranged on installing rack 6; also can be arranged on the inside of lamp body shell 2; do not change the connected mode of input, output cable and wave filter; it is only the screw and nut dismounting that box body 431 is connected with installing rack 6; and the wave filter assembling 42, filtering unit shell 43, wire bushing 46, double-screw bolt 45 are installed in the lump to the inside of lamp body shell, play equally the effect of shielding Conduction Interference. The equivalent structure that all utilizations description of the present invention and accompanying drawing content have been done changes, and is all included in protection scope of the present invention.
Claims (10)
1. an anti-electromagnetic interference light fixture, comprising: the lamp body shell of a metal material and be located at described lampA light source in body case, is provided with the light that described light source is sent and outwards penetrates on described lamp body shellThe opening going out, is also provided with the transparent member of the described opening of a sealing on described lamp body shell, it is characterized in that,The inner side of described transparent member is also provided with the screen cloth of a metal material, and described screen cloth is fixed on by securing memberOn described lamp body shell, described screen cloth covers the opening of described lamp body shell completely, with described lamp body outsideShell is encircled into the electromagnetic metallic shield of a shielding; Described anti-electromagnetic interference light fixture also comprises a filter bankPart, described filtering unit comprises: a filtering unit shell and is located at the filter in described filtering unit shellRipple device, described filtering unit shell is metal shell and is fixed on described lamp body shell described wave filterHave an input and an output, output accesses in described lamp body shell by an output cable, defeatedEnter end and be connected with external power source by an input cable, described wave filter is for anti-electromagnetic interference described in filteringThe clutter of light fixture external power source signal.
2. anti-electromagnetic interference light fixture as claimed in claim 1, is characterized in that, described lamp body shell bagDraw together: the protecgulum that the lamp body housing main body, of establishing cavity in one is arranged on described lamp body housing main body front end withAnd a bonnet that is arranged on described lamp body housing main body rear end, described light source is arranged on described lamp body shell masterIn the cavity of body, described opening is opened on described protecgulum.
3. anti-electromagnetic interference light fixture as claimed in claim 2, is characterized in that the opening of described protecgulumSurrounding is equipped with a circle draw-in groove, and described transparent member is installed in described draw-in groove, described draw-in groove and described transparentBetween part, be also provided with sealing ring.
4. anti-electromagnetic interference light fixture as claimed in claim 3, is characterized in that, described transparent member is sheetShape, its by one end to other end bending.
5. anti-electromagnetic interference light fixture as claimed in claim 4, is characterized in that the shape of described screen clothIdentical with the shape of described transparent member, its parallel with described transparent member and stacked placement.
6. anti-electromagnetic interference light fixture as claimed in claim 5, is characterized in that the surrounding of described screen clothFix by multiple securing members and described protecgulum, described securing member comprises: the compressing tablet of a metal material andScrew, described compressing tablet is L-type or Z-type, and one end of described compressing tablet is pressed on described screen cloth, and the other end supportsTouch described protecgulum, described screw passes described compressing tablet and described screen cloth and is locked on described protecgulum.
7. anti-electromagnetic interference light fixture as claimed in claim 1, is characterized in that, outside described filtering unitShell comprises: the box body of an end opening and lid are located at the lid at described box opening place, described wave filterBe placed in described box body, the two sides of described box body have for described input cable and output cable and wearThe cable-through hole of crossing, is respectively arranged with wire bushing in each cable-through hole.
8. anti-electromagnetic interference light fixture as claimed in claim 7, is characterized in that, described lid passes through spiral shellNail is fixed on described box body, is provided with the through hole passing for screw on described lid, in described box body, establishesBe equipped with the double-screw bolt of the described screw of locking.
9. anti-electromagnetic interference light fixture as claimed in claim 8, is characterized in that, outside described filtering unitShell is arranged on described lamp body shell by an installing rack.
10. the anti-electromagnetic interference light fixture as described in claim 1 to 9 any one, is characterized in that instituteStating transparent member is Pyrex material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210089862.7A CN103363325B (en) | 2012-03-30 | 2012-03-30 | A kind of anti-electromagnetic interference light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210089862.7A CN103363325B (en) | 2012-03-30 | 2012-03-30 | A kind of anti-electromagnetic interference light fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103363325A CN103363325A (en) | 2013-10-23 |
| CN103363325B true CN103363325B (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210089862.7A Expired - Fee Related CN103363325B (en) | 2012-03-30 | 2012-03-30 | A kind of anti-electromagnetic interference light fixture |
Country Status (1)
| Country | Link |
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| CN (1) | CN103363325B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527958B (en) * | 2013-10-28 | 2015-07-15 | 上海源明照明科技有限公司 | Radiation-proof electrodeless lamp |
| CN111043556A (en) * | 2019-12-30 | 2020-04-21 | 江苏瑞迪照明科技有限公司 | Street lamp provided with filter |
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| CN200965174Y (en) * | 2007-04-04 | 2007-10-24 | 北京天吉星航天科技有限公司 | Radiation proof brain-protecting eye-protecting health desk lamp |
| CN201162968Y (en) * | 2008-02-18 | 2008-12-10 | 葛世潮 | Hot cathode fluorescent lamp desk lamp without electromagnetic radiation interference |
| CN201265807Y (en) * | 2008-09-05 | 2009-07-01 | 深圳市俄菲照明有限公司 | High-power LED lamp |
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| CN201396617Y (en) * | 2009-04-22 | 2010-02-03 | 深圳市老优节能技术有限公司 | Electrodeless lamp |
| CN202091941U (en) * | 2011-06-17 | 2011-12-28 | 深圳市科纳实业有限公司 | High-power LED HSR tunnel lamp |
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| CN102087952A (en) * | 2009-12-08 | 2011-06-08 | 上海明凯照明有限公司 | Microwave cavity and double-waveguide microwave plasma lamp |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200965174Y (en) * | 2007-04-04 | 2007-10-24 | 北京天吉星航天科技有限公司 | Radiation proof brain-protecting eye-protecting health desk lamp |
| CN201162968Y (en) * | 2008-02-18 | 2008-12-10 | 葛世潮 | Hot cathode fluorescent lamp desk lamp without electromagnetic radiation interference |
| CN201265807Y (en) * | 2008-09-05 | 2009-07-01 | 深圳市俄菲照明有限公司 | High-power LED lamp |
| CN201345352Y (en) * | 2008-11-09 | 2009-11-11 | 宋裕福 | Electromagnetic radiation-shielding electrodeless lamp capable of being started with wide voltage range |
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| CN103363325A (en) | 2013-10-23 |
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Granted publication date: 20160504 Termination date: 20190330 |