CN102931049B - A kind of compact electrodeless fluorescent lamp - Google Patents

A kind of compact electrodeless fluorescent lamp Download PDF

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Publication number
CN102931049B
CN102931049B CN201210397719.4A CN201210397719A CN102931049B CN 102931049 B CN102931049 B CN 102931049B CN 201210397719 A CN201210397719 A CN 201210397719A CN 102931049 B CN102931049 B CN 102931049B
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lamp
shield device
metallic shield
metal shielding
antenna part
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CN102931049A (en
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叶关荣
毛滋春
叶炜
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Ye Wei
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XINYE PHOTOELECTRIC ENGINEERING Co Ltd HANGZHOU
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Abstract

The invention provides a kind of compact electrodeless fluorescent lamp, metal shielding box is provided with in its lamp shell, its MOS power tube parts and output choke are placed in metal shielding box, prevent high frequency radiation from externally leaking, and are also shielded by metallic walls between MOS power tube parts and output choke; Its antenna part is arranged on lamp shell, and is in the top of metal shielding box, and antenna part comprises metallic shield device; Magnetic core, coil are interposed between outside by metallic shield device, and the high-frequency signal of shielding electrodeless florescent lamp antenna part is to the electromagnetic radiation of the circuit of lamp shell inside; Metallic shield device is by connecting line and metal shielding box conducting, and metallic shield device is also provided with opening, produces to reduce eddy current and supplies the high-frequency feed line of electrodeless florescent lamp to pass through.Compact conformation of the present invention, close to incandescent lamp on build; The present invention devises suitable bulb screen shield structure and circuits mask is arranged, structure is simple, effective with manufacture, can reach the radio interference technical requirement that IEC is relevant.

Description

A kind of compact electrodeless fluorescent lamp
Technical field
The present invention relates to a kind of small-sized electrodeless florescent lamp, it can the novel energy-conserving light source of incandescent lamp as an alternative.
Background technology
In China, National Development and Reform Commission, Department of Commerce, General Administration of Customs, State Administration for Industry & Commerce, State General Administration for Quality Supervision combine and have printed and distributed " about progressively nonimportation and the bulletin selling ordinary lighting incandescent lamp "." bulletin " determine from 1 day October in 2012, according to watt level stage by stage progressively nonimportation and sell ordinary lighting incandescent lamp." bulletin " clear and definite China progressively eliminates incandescent lamp route map and is divided into double teacher: on September 30,1 day to 2012 November in 2011 is the transitional period; Play nonimportation on October 1st, 2012 and sell 100 watts and above ordinary lighting incandescent lamp.
The bulletin eliminating incandescent lamp brings the opportunity of development to novel energy-conserving light source, low-power LED integration light source, electricity-saving lamp and compact electrodeless fluorescent lamp are all the alternative source of light of incandescent lamp.
1, low-power LED integration light source:
Low-power LED integration light source, as the alternative source of light of below 60W incandescent lamp, exists hardly and fearfully strives opponent, still have some deficits at present be that the consistency of light beam space colour temperature is not good enough, color rendition index Ra also needs to improve, dazzle is bigger than normal.In luminous efficiency, commercial integrated 4 watts of low colour temperature, 7 watts, 10 watts etc. are about 60-80lm/W, and high color temperature, about 100-120lm/W, is enough to the incandescent lamp of alternative less than 60 watts.But substitute the incandescent lamp of more than 100 watts, then need tens watts of power LED light source, this brings difficulty to 15-20 watt of integrated LED lamp, because the heat of LED light source is completed by heat loss through conduction, need design larger radiator just can make LED light source normally work, and the LED light source of large volume can not be subject to the welcome of user.
2, electricity-saving lamp:
China introduces electricity-saving lamp technology in early eighties, and produce about 80-90 hundred million every year with the first in the world big producing country, wherein 80-90% outlet, raise the price due to environmental issue and fluorescent material in recent years and be subject to certain impact, the life-span of electricity-saving lamp is about 5000-7000 hour, and European Union is to the special concern of mercury pollution problem.
3, fluorescent lamp without electrode or title electromagnetic induction lamp (abbreviation electrodeless florescent lamp):
Fluorescent lamp without electrode or title electromagnetic induction lamp (abbreviation electrodeless florescent lamp) are studied successfully in the early 1990s, in recent years progressively understand by people, its operation principle adopts electromagnetic induction technology to produce electromagnetic circuit in bulb (or fluorescent tube), by in the mode of high-frequency induction electromagnetic field by Energy Coupling in bulb (or fluorescent tube), these energy make the mercury gas avalanche ionization in bulb (or fluorescent tube) form plasma, be excited mercury ion when returning reset condition, can by original obtained energy with 185nm, 253.7nm, 365nm, 404.6nm, 435.8nm, 546.1nm, 577nm, 579nm wavelength radiation out, wherein 253.7nm ultraviolet energy is the strongest, the fluorescent material of bulb (or fluorescent tube) inwall sends visible ray by 253.7nm ultraviolet excites.Owing to not using the filament in conventional light source, avoid the problem of the disintegration of filament of conventional light source, therefore, extend electrodeless florescent lamp useful life, its life-span can be greater than 60,000 hours, and light source is electrodeless, non-maintaining, lighting flicker free, photochromic soft, color rendering index reaches more than 80, good visual effect.
In recent years because world energy sources is nervous, various countries have put into effect superseded incandescent lamp route map.Electrodeless florescent lamp research also to miniaturization development, using can as the alternative source of light of incandescent lamp.Compared with other energy-conserving light source, compact electrodeless fluorescent lamp substitutes 100-200 watt of incandescent light fitting and has superiority in 18-23W power bracket, because the weight of 15-23WLED lamp and volume not easily substitute above-mentioned incandescent lamp.And compact electrodeless fluorescent lamp light efficiency is higher than electricity-saving lamp, energy-saving effect is obvious, and the life-span is electricity-saving lamp 6 times, and color rendering is better than LED, and the consistency of light beam space colour temperature is good, is face illuminating source, not dazzle, is the preferential light source of alternative 100-200 watt incandescent lamp.
In the world, the electrodeless florescent lamp of successful operation frequency 13.65MHz has been studied as far back as nineteen ninety by Japan, and luminous efficiency is still not ideal.In the nineties, GE company of the U.S. is proposed 23WGENURA, is more successful light source, is applicable to indoor application, and operating frequency is 2.65MHz, and luminous efficiency is 49lm/W, and the life-span is 15000 hours.
Because the operating frequency of electrodeless florescent lamp is higher, center operating frequency is about 250kHz and 2.65MHz, and will produce the harmful interference to electrical network, instrument and personnel, International Electrotechnical Commission establishes corresponding international standard, limits this kind of interference level.Existing a lot of research unit and company have dropped into human and material resources in the world, which includes German OSRAM company, MAT, GE company of the U.S. etc.Power due to compact (CIL) electrodeless florescent lamp and only have phase line and center line, the 3rd earth connection can not be had as high-power electrodeless fluorescent lamp, so it is very difficult to meet the corresponding international standard of International Electrotechnical Commission.So far, understand from known information and sample test, in compact integrated electrodeless florescent lamp, only have GE company of U.S. 23WGENURA can reach the technical requirement of IEC/CISPR15.
Very special design has been done to 23WGENURA by GE company of the U.S., eliminates cell-shell and disturbs the high frequency radio of rear portion circuit.Cell-shell surface is coated with upper conductive film, prevents high-frequency signal to external radiation, in the bottom of cell-shell, devises silver-plated glue hybrid metal film, and form lattice-shaped and prevent eddy current, this conductive metal film flat ground feeder line is connected with high-frequency circuit ground wire.GE company of the U.S. applies structural design complicated like this, reaches radio interference (EMC) technical requirement that International Electrotechnical Commission (IEC) is relevant.The output choking-winding of circuit have also been made shielding, and coordinate input EMC filter, the radio interference of whole circuit for lamp reaches the corresponding international standard of International Electrotechnical Commission.At present, relevant radio interference (EMC) technical requirement of IEC cannot all be reached with the electrodeless florescent lamp cell-shell of conventional development in the world.
But GE company 23WGENURA bubble shell structure cost is too high, is not easily accepted by market, do not reach the object of replacing incandescent lamp yet.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of compact electrodeless fluorescent lamp, and its cost is low, can pass through the requirement of relevant radio interference-limited, reaches the object of replacing incandescent lamp.For this reason, the present invention by the following technical solutions: it comprises bulb, the antenna part of electrodeless florescent lamp, the radio-frequency generator part of electrodeless florescent lamp; It is characterized in that described electrodeless florescent lamp is provided with lamp shell, metal shielding box is provided with in described lamp shell, MOS power tube parts and the output choke of described radio-frequency generator part are placed in metal shielding box, MOS power tube parts and output choke are sealed in inside, prevent high frequency radiation from externally leaking, also shielded by metallic walls between MOS power tube parts and output choke; Described antenna part is arranged on lamp shell, and is in the top of metal shielding box, and described antenna part comprises magnetic core, coil, bobbin and metallic shield device; Described metallic shield device comprises the dish portion be in bottom antenna part, and the position in described dish portion is in lamp shell, and described metallic shield device is also provided with cannula portion on dish portion; Magnetic core, coil are interposed between outside by metallic shield device, and the high-frequency signal of shielding electrodeless florescent lamp antenna part is to the electromagnetic radiation of the circuit of lamp shell inside below antenna part; Metallic shield device is by connecting line and metal shielding box conducting, and described dish portion is also provided with opening, and produce to reduce eddy current and supply the high-frequency feed line of electrodeless florescent lamp to pass through, antenna part is connected with the output of radio-frequency generator by high-frequency feed line.
On the basis adopting technique scheme, the present invention also can adopt following further technical scheme:
Described opening is out the slit in dish portion.
Described bulb sleeve is outside antenna part, and described bulb also has the central tube through metallic shield device cannula portion and dish portion, arranges amalgam at the end of central tube; The dish portion of metallic shield device has the centre bore passed for central tube.
Described bobbin is enclosed within outside metallic shield device, described bobbin inwall has step, in a tubular form and to be enclosed within the cannula portion of metallic shield device outer and be between cannula portion and bobbin, be close to the cannula portion of metallic shield device, the step surface of described step holds magnetic core to magnetic core.
Described metallic shield device is connected on bobbin.
Between the bottom and metal shielding box of antenna part, establish dividing plate, the lamp shell between dividing plate and the bottom of antenna part is provided with louvre, described dividing plate has the groove of protection central tube end.
Described metal shielding box is fan-shaped box and is separated out MOS power tube component room and the output choke room of left and right distribution by metallic walls, there is at the inside outer wall of MOS power tube component room the plane reclined for MOS power tube parts, MOS power tube parts fastener top on the plane
Metal shielding box comprises box body and upper cover, upper cover and metal shielding box box body is fixed, seal between upper cover and metal shielding box box body with screw, prevents the high frequency radiation of MOS power tube parts and output choke from externally leaking.
Owing to adopting technical scheme of the present invention, compact conformation of the present invention, antenna part and radio-frequency generator part are provided, and form the electrodeless florescent lamp of compact, integration, close to incandescent lamp on build; Further, the present invention devises suitable bulb screen shield structure and circuits mask is arranged, shielding construction is simple and effective, can reach radio interference (EMC) technical requirement that International Electrotechnical Commission (IEC) is relevant ,and do not need the bulb structure and the lamp manufacturing process that adopt GE company of U.S. complexity during fabrication, make the electrodeless fluorescent lamp bulb applying the production of conventional lamp manufacturing process just can reach the technical requirement of International Electrotechnical Commission (IEC), significantly can reduce the manufacturing cost of electrodeless florescent lamp of compact, integration, make compact, alternative source of light that the electrodeless florescent lamp of integration can become economic incandescent lamp.
Accompanying drawing explanation
Fig. 1 a is U.S. GE company 23WGENURA compact, the operating frequency conducted interference result resolution chart that to be 2.65MHz integrated electrodeless fluorescent lamp detect according to the limit value of the radio disturbance characteristic of relevant radio interference (EMC) technical requirement of International Electrotechnical Commission (IEC) CISPR15 and GB17743-2007. electric lighting and similar devices and method of measurement, topmost broken line is the limiting value that interference allows, foot curve is measured value, ordinate is interference strength (decibel value dB), and abscissa is frequency range (9kHz-30MHz).
Fig. 1 b is U.S. GE company 23WGENURA compact, the operating frequency radiated interference result resolution chart that to be 2.65MHz integrated electrodeless fluorescent lamp detect according to the limit value of the radio disturbance characteristic of relevant radio interference (EMC) technical requirement of International Electrotechnical Commission (IEC) CISPR15 and GB17743-2007. electric lighting and similar devices and method of measurement, topmost broken line is the limiting value that interference allows, foot curve is measured value, ordinate is interference strength (decibel value dB), and abscissa is frequency range (30MHz-300MHz).
The conducted interference result resolution chart that Fig. 2 a is electrodeless florescent lamp cell-shell with conventional development, the limit value of operating frequency to be 2.65MHz power be certain of 15 watts the does not meet radio disturbance characteristic of relevant radio interference (EMC) technical requirement of International Electrotechnical Commission (IEC) CISPR15 and GB17743-2007. electric lighting and similar devices and method of measurement detect;
The radiated interference result resolution chart that Fig. 2 b is electrodeless florescent lamp cell-shell with conventional development, the limit value of operating frequency to be 2.65MHz power be certain of 15 watts the does not meet radio disturbance characteristic of relevant radio interference (EMC) technical requirement of International Electrotechnical Commission (IEC) CISPR15 and GB17743-2007. electric lighting and similar devices and method of measurement detect;
Fig. 3 a is the operating frequency of application the present invention program be 2.65MHz power is the compact of 20 watts, the conducted interference resolution chart of integrated electrodeless fluorescent lamp;
Fig. 3 b is the operating frequency of application the present invention program be 2.65MHz power is the compact of 20 watts, the radiated interference resolution chart of integrated electrodeless fluorescent lamp;
Fig. 4 is the structure cutaway view of embodiment provided by the present invention.
Fig. 5 is the schematic diagram of middle antenna part embodiment illustrated in fig. 4.
Fig. 6 a is the front view of middle metallic shield device embodiment illustrated in fig. 4.
Fig. 6 b is the vertical view of middle metallic shield device embodiment illustrated in fig. 4.
Fig. 7 a is the vertical view of middle metal shielding box embodiment illustrated in fig. 4.
Fig. 7 b is the stereogram of the circuit part of lamp shell inside below middle antenna part embodiment illustrated in fig. 4.
Fig. 8 a is the operating frequency of application the present invention program be 2.65MHz power is the compact of 20 watts, a kind of outline drawing of integrated electrodeless fluorescent lamp.
Fig. 8 b is the operating frequency of application the present invention program be 2.65MHz power is the compact of 20 watts, the another kind of outline drawing of integrated electrodeless fluorescent lamp.
Embodiment
With reference to accompanying drawing.The present invention includes bulb 1, the antenna part of electrodeless florescent lamp, the radio-frequency generator part of electrodeless florescent lamp; It is characterized in that described electrodeless florescent lamp is provided with lamp shell 100, metal shielding box 9 is provided with in described lamp shell 100, the MOS power tube parts 81 of described radio-frequency generator part and output choke 82 are placed in metal shielding box 9, MOS power tube parts and output choke are sealed in inside, prevent high frequency radiation from externally leaking, also shielded by metallic walls 90 between MOS power tube parts and output choke;
Described antenna part is arranged on lamp shell 100, and is in the top of metal shielding box 9, and described antenna part comprises magnetic core 3, coil 2, bobbin 4 and metallic shield device 5; Described metallic shield device comprises the dish portion 51 be in bottom antenna part, and the position in described dish portion is in lamp shell, and described metallic shield device is also provided with cannula portion 52 on dish portion; Magnetic core 3, coil 2 are interposed between outside by metallic shield device, the high-frequency signal of shielding electrodeless florescent lamp antenna part is to the electromagnetic radiation of the circuit of lamp shell inside below antenna part, because metallic shield device and metal shielding box have level difference, metallic shield device is not earth level, can not radiation-screening, therefore by metallic shield device 5 by connecting line 10 and metal shielding box 9 conducting; Described dish portion 51 is also provided with opening 510, produce to reduce eddy current, reduce eddy current loss, improve source efficiency, circuit working is stablized, and passes through for the high-frequency feed line 7 of electrodeless florescent lamp, and antenna part is connected with the output of radio-frequency generator by high-frequency feed line, radio-frequency generator powers to coil 2 by high-frequency feed line 7, produce electromagnetic field of high frequency, be excited mercury ion and launch ultraviolet, and excite the fluorescent material in bulb to send visible ray.
Described opening 510 can for opening the slit in dish portion.
Described bulb 1 is enclosed within outside antenna part, and described bulb also has the central tube 12 through metallic shield device cannula portion 52 and dish portion 51, arranges amalgam 6 at the end of central tube, and drawing reference numeral 11 is auxiliary amalgam; The dish portion of metallic shield device has the centre bore 53 passed for central tube 12.
Described bobbin is enclosed within outside metallic shield device, described bobbin inwall has step 40, magnetic core 3 in a tubular form and to be enclosed within the cannula portion of metallic shield device outer and be between cannula portion 52 and bobbin 4, be close to the cannula portion 52 of metallic shield device, the step surface of described step 40 holds magnetic core 3, thus form stable antenna structure, and metallic shield device can be made to shield the high-frequency signal of electrodeless florescent lamp antenna part to the electromagnetic radiation of the circuit of lamp shell inside below antenna part.
In the present invention; on the basis of above shielding construction; additionally provide a favourable heat dissipation channel; dividing plate 101 is established between the bottom and metal shielding box of antenna part; lamp shell between dividing plate 101 and the bottom of antenna part is provided with louvre 102, described dividing plate has the groove 103 of protection central tube end.
Like this, cell-shell internal heat dispelled the heat by louvre between dish portion 51 and dividing plate 101, this structure is better than GE company of the U.S., outside the technical requirement reaching International Electrotechnical Commission (IEC) at electricity function index, radio-frequency generator working temperature is lower, improves the whole lamp life-span.
The material of metallic shield device 5 can adopt aluminium or iron.Metal shielding box 9 of the present invention makes the electromagnetic interference of radio-frequency generator can not externally radiation to power supply conduct radiation, its material also can select aluminium or iron.Further, particularly importantly MOS power tube parts and output choke are kept apart respectively.
In the present invention, adopt metallic walls 90 to shield between MOS power tube parts and output choke, the shielding mode of metallic walls 90 can be that metal shielding box 9 is divided into several capsule, or, as in this embodiment metal shielding box 9 is divided into several cell.
As Fig. 7 a, shown in 7b, metal shielding box 9 is in fan-shaped box, so that carry out rational space layout in narrow space in lamp shell 100, other lamp shell 100 space of metal shielding box 9 also can be utilized, metal shielding box 9 is separated out MOS power tube component room 91 and the output choke room 92 of left and right distribution by described metallic walls, there is at the inside outer wall of MOS power tube component room the plane 910 reclined for MOS power tube parts, MOS power tube parts fastener 93 pushes up on the plane, securing member 93 can adopt bolt nut, the heat of MOS power component can be dispersed together with whole metal shielding box by above-mentioned plane.
Drawing reference numeral 96 is the remaining circuit part except MOS power tube parts 81 and output choke 82 of lamp shell inside below antenna part, comprises circuit board and other circuit components.
Metal shielding box 9 comprises box body 95 and upper cover 94, with screw, upper cover and metal shielding box box body are fixed, seal between upper cover and metal shielding box box body, metal shielding box 9 is highly not more than 25mm, this structure makes the electromagnetic interference of radio-frequency generator can not externally radiation to power supply conduct radiation, the material of shielding case 9 is aluminium or iron; Fig. 3 a is the conducted interference result detected according to limit value and the method for measurement of the radio disturbance characteristic of relevant radio interference (EMC) technical requirement of International Electrotechnical Commission (IEC) CISPR15 and GB17743-2007. electric lighting and similar devices, topmost broken line is the limiting value that interference allows, foot curve is measured value, ordinate is interference strength (decibel value dB), and abscissa is frequency range (9kHz-30MHz).
Fig. 3 b is the radiated interference result detected according to limit value and the method for measurement of the radio disturbance characteristic of relevant radio interference (EMC) technical requirement of International Electrotechnical Commission (IEC) CISPR15 and GB17743-2007. electric lighting and similar devices, topmost broken line is the limiting value that interference allows, foot curve is measured value, ordinate is interference strength (decibel value dB), and abscissa is frequency range (30MHz-300MHz).
After adopting technical scheme of the present invention, electrodeless florescent lamp can be applied conventional method and produce electrodeless florescent lamp bulb, cell-shell does not take any special measure, the size of bulb can be: when eating type for mill (Fig. 8 a): cell-shell ellipse garden major axis is less than 85mm, minor axis is less than 50mm, and whole lamp height is less than 120mm, when for ball alveolitoid (Fig. 8 a): cell-shell diameter is less than 75mm, whole lamp height is less than 135mm, and whole lamp lower diameter is less than 48mm.

Claims (6)

1. a compact electrodeless fluorescent lamp, comprises bulb, the antenna part of electrodeless florescent lamp, the radio-frequency generator part of electrodeless florescent lamp; It is characterized in that described electrodeless florescent lamp is provided with lamp shell, metal shielding box is provided with in described lamp shell, MOS power tube parts and the output choke of described radio-frequency generator part are placed in metal shielding box, MOS power tube parts and output choke are sealed in inside, prevent high frequency radiation from externally leaking, also shielded by metallic walls between MOS power tube parts and output choke;
Described antenna part is arranged on lamp shell, and is in the top of metal shielding box, and described antenna part comprises magnetic core, coil, bobbin and metallic shield device; Described metallic shield device comprises the dish portion be in bottom antenna part, and the position in described dish portion is in lamp shell, and described metallic shield device is also provided with cannula portion on dish portion; Magnetic core, coil are interposed between outside by metallic shield device, and the high-frequency signal of shielding electrodeless florescent lamp antenna part is to the electromagnetic radiation of the circuit of lamp shell inside below antenna part; Metallic shield device is by connecting line and metal shielding box conducting, and described dish portion is also provided with opening, and produce to reduce eddy current and supply the high-frequency feed line of electrodeless florescent lamp to pass through, antenna part is connected with the output of radio-frequency generator by high-frequency feed line;
Described metal shielding box is fan-shaped box and is separated out MOS power tube component room and the output choke room of left and right distribution by metallic walls, have the plane reclined for MOS power tube parts at the inside outer wall of MOS power tube component room, MOS power tube parts fastener top on the plane;
Described opening is out the slit in dish portion;
Described bobbin is enclosed within outside metallic shield device, and described magnetic core in a tubular form and to be enclosed within the cannula portion of described metallic shield device outer and be between cannula portion and bobbin, be close to the cannula portion of metallic shield device.
2. a kind of compact electrodeless fluorescent lamp as claimed in claim 1, is characterized in that described bulb sleeve is outside antenna part, and described bulb also has the central tube through metallic shield device cannula portion and dish portion, arranges amalgam at the end of central tube; The dish portion of metallic shield device has the centre bore passed for central tube.
3. a kind of compact electrodeless fluorescent lamp as claimed in claim 1, it is characterized in that described bobbin inwall has step, the step surface of described step holds magnetic core.
4. a kind of compact electrodeless fluorescent lamp as described in claim 1 or 3, is characterized in that described metallic shield device is connected on bobbin.
5. a kind of compact electrodeless fluorescent lamp as claimed in claim 2 or claim 3; it is characterized in that establishing dividing plate between the bottom and metal shielding box of antenna part; lamp shell between dividing plate and the bottom of antenna part is provided with louvre, described dividing plate has the groove of protection central tube end.
6. a kind of compact electrodeless fluorescent lamp as claimed in claim 1, is characterized in that metal shielding box comprises box body and upper cover, upper cover and metal shielding box box body is fixed, seal between upper cover and metal shielding box box body with screw.
CN201210397719.4A 2012-10-18 2012-10-18 A kind of compact electrodeless fluorescent lamp Active CN102931049B (en)

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