CN201222485Y - Electrodeless discharge lamp - Google Patents
Electrodeless discharge lamp Download PDFInfo
- Publication number
- CN201222485Y CN201222485Y CNU2008201126030U CN200820112603U CN201222485Y CN 201222485 Y CN201222485 Y CN 201222485Y CN U2008201126030 U CNU2008201126030 U CN U2008201126030U CN 200820112603 U CN200820112603 U CN 200820112603U CN 201222485 Y CN201222485 Y CN 201222485Y
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- China
- Prior art keywords
- glass bulb
- discharge lamp
- cavity
- electrodeless discharge
- blister
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Discharge Lamps And Accessories Thereof (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
An electrodeless discharge lamp relates to an electromagnetic induction electric discharge lamp, which comprises a blister glass envelope (1) with a hollow cavity (2) and a magnetic core (4) which is provided with a coil (5), wherein at least a part of the magnet core is located in the hollow cavity (2). The electromagnetic induction electric discharge lamp is characterized in that a tubular glass envelope (3) is also arranged in the hollow cavity (2) of the blister glass envelope (1), two ends of the tuber glass envelope are respectively communicated with two positions of the blister glass envelope (1), which enables the blister glass envelope (1) with the hollow cavity and the tubular glass envelope (3) to form a sealed system with a closed discharge return circuit, and the magnetic core (4) is arranged on the tubular glass envelope (3). The electromagnetic induction electric discharge lamp is characterized in that the electromagnetic interference is little, the coupling efficiency is high, and the like.
Description
Technical field
The utility model relates to discharge lamp, particularly a kind of electromagnetic induction electrodeless discharge lamp.
Background technology
The patent No. of Granted publication on the 26th is the known this discharge lamp of Chinese patent (notification number CN1036555C) of 90107053.X from November, 1997.This kind discharge lamp comprises: a blister glass bulb with a cavity, and a magnetic core that is provided with coil, this magnetic core is arranged in described cavity, and this blister glass bulb with a cavity is closed in airtight mode.When this kind discharge lamp was transferred electricity work in the radio-frequency power supply excitation, the high frequency magnetic field that is produced by the power coupling device that coil and magnetic core constituted was open, can produce serious electromagnetic interference in the space around, was difficult to the safety certification by EMC.In fact, reduce its electromagnetic interference, become the technical barrier that presses for solution to reach the relevant criterion of electromagnetic compatibility.
Summary of the invention
The purpose of this utility model is the electrodeless discharge lamp that will provide a kind of electromagnetic interference few; Another purpose of the present utility model is to improve the coupling efficiency of electrodeless discharge lamp.
In order to achieve the above object, the utility model adopts following technical scheme: according to the utility model, electrodeless discharge lamp, comprise: a blister glass bulb with a cavity, a magnetic core that is provided with coil, this magnetic core to small part is arranged in described cavity, it is characterized in that, in the cavity of described blister glass bulb, also be provided with a tubulose glass bulb, the two ends of this tubulose glass bulb are communicated with respectively with two places of blister glass bulb, make blister glass bulb with cavity and tubulose glass bulb constitute a closed system with closed discharge loop, and described magnetic core is arranged on the described tubulose glass bulb.
Described tubulose glass bulb can adopt multiple shape, and its cross section can be shapes such as circle, ellipse, rectangle.
Described cavity can be cylindrical cavity, four prism type cavity, can also be the cavity of other shape.
Described its profile of blister glass bulb with a cavity can be multiple shape, as being shapes such as spheroidal, elliposoidal.
In order to make electrodeless discharge lamp when discharging, send fluorescence, on the inwall of its blister glass bulb, fluorescence coating can be set, or on the inwall of its blister glass bulb and on the inwall of its tubulose glass bulb fluorescence coating be set all; In order to obtain ultraviolet light, fluorescence coating is not set on the inwall of its glass bulb.
In order to make the electrodeless discharge lamp issued light, a reflector layer can be set on the outer wall of described cavity effectively to external radiation.
In order to improve the startability of electrodeless discharge lamp, on described tubulose glass bulb, can set up coil.
Described magnetic core is the magnetic core that has the position, hole in it, and the coil that is arranged on the magnetic core is reeled by the position, hole of magnetic core.Its magnetic core can adopt multiple shape, can be the shapes such as rectangle of annular, interior porose position.Magnetic core preferably is cut into two, and the position, hole of cutting the back magnetic core is opened wide, so that described tubulose glass bulb can conveniently be put into the Kong Weizhong of magnetic core, each end of the iron core that is cut open is ground smoothly.Be arranged on the described tubulose glass bulb for the ease of magnetic core, the fixture of a fixed magnetic core can be set in the outside of magnetic core.
The utlity model has following good effect: when existing electrodeless discharge lamp was worked, the high frequency magnetic field that is produced by the power coupling device that coil and magnetic core constituted was open, and surrounding environment has been caused serious electromagnetic interference.And the high frequency magnetic field that is produced by the power coupling device that coil and magnetic core constituted of the present utility model is non-opening, and its high frequency magnetic field concentrates in the magnetic core, and the electromagnetic interference of surrounding environment is significantly reduced, and reaches relevant electromagnetic compatibility standard easily.In addition, the high frequency magnetic field energy of its leakage significantly reduces, and has improved the coupling efficiency of lamp.
Description of drawings
Fig. 1 is the schematic diagram of the electrodeless discharge lamp of prior art;
Fig. 2 is the schematic diagram of first embodiment of electrodeless discharge lamp of the present utility model;
Fig. 3 is the schematic diagram of another embodiment of electrodeless discharge lamp of the present utility model.
Embodiment
Fig. 1 shows the schematic diagram of the electrodeless discharge lamp of prior art.As seen from the figure, this kind discharge lamp comprises: 1, one of a blister glass bulb with a cavity 2 is provided with the magnetic core 4 of coil 5, and this magnetic core is arranged in cavity 2, and this blister glass bulb 1 with cavity 2 is closed in airtight mode.Utility alternating current enters from lamp holder, the radio-frequency power supply 6 that is connected with lamp holder produces high-frequency current, this high-frequency current produces high frequency magnetic field by the power coupling device that is made of coil 5 and magnetic core 4, mercury and noble gas discharge in this high frequency magnetic field excitation blister glass bulb 1, the ultraviolet ray that is produced can be converted into visible light by the fluorescence coating that is arranged on blister glass bulb 1 inwall.This kind lamp is when work, and the high frequency magnetic field that the power coupling device that is made of coil 5 and magnetic core 4 is produced is open, and surrounding environment has been caused serious electromagnetic interference.
Fig. 2 shows first embodiment of electrodeless discharge lamp of the present utility model.As seen from the figure, discharge lamp of the present utility model, comprise: a blister glass bulb 1 with cavity 2, a magnetic core 4 that is provided with coil 5, this magnetic core is arranged in cavity 2, this magnetic core has the position, hole in it, coil 5 is reeled by the position, hole of magnetic core, in the cavity 2 of blister glass bulb 1, also be provided with a tubulose glass bulb 3, the two ends of this tubulose glass bulb are communicated with respectively with two places of blister glass bulb 1, make blister glass bulb 1 with cavity 2 and tubulose glass bulb 3 constitute a closed system with closed discharge loop, contain mercury and rare gas (not drawing among the figure) in this closed system, magnetic core 4 is set on the tubulose glass bulb 3.When discharge lamp work of the present utility model, the high frequency magnetic field that the power coupling device that is made of coil 5 and magnetic core 4 is produced is non-opening, and its high frequency magnetic field concentrates in the magnetic core 4, and the electromagnetic interference of surrounding environment is significantly reduced.In addition because the high frequency magnetic field energy that leaks seldom, has improved the coupling efficiency of lamp.
Fig. 3 shows second embodiment of electrodeless discharge lamp of the present utility model.As seen from the figure, discharge lamp of the present utility model, comprise: a blister glass bulb 1 with cavity 2, in the cavity 2 of blister glass bulb 1, be provided with a tubulose glass bulb 3, the two ends of this tubulose glass bulb are communicated with respectively with two places of blister glass bulb 1, make blister glass bulb 1 with cavity 2 and tubulose glass bulb 3 constitute a closed system with closed discharge loop, in this closed system, contain mercury and rare gas (not drawing among the figure), on the inwall of blister glass bulb 1 and on the inwall of tubulose glass bulb 3, all be provided with fluorescence coating (not drawing among the figure) with cavity 2, also be provided with a reflector layer 7 on the outer wall of cavity 2, this reflector layer 7 can make the light of lamp radiation in cavity 2 reflex to the outside.
Although showed and described and thought preferred embodiment of the present utility model at present, apparent, those skilled in the art can carry out various changes and improvements, and does not deviate from the scope of the present utility model that is limited by appended claims.
Claims (10)
1, electrodeless discharge lamp, comprise: a blister glass bulb (1) with cavity (2), a magnetic core (4) that is provided with coil (5), this magnetic core to small part is arranged in described cavity (2), it is characterized in that, in the cavity (2) of described blister glass bulb (1), also be provided with a tubulose glass bulb (3), the two ends of this tubulose glass bulb are communicated with respectively with two places of blister glass bulb (1), make have cavity blister glass bulb (1) and the tubulose glass bulb (3) of (2) constitute a closed system with closed discharge loop, and described magnetic core (4) is arranged on the described tubulose glass bulb (3).
2, electrodeless discharge lamp as claimed in claim 1 is characterized in that, also is provided with coil on described tubulose glass bulb (3).
3, electrodeless discharge lamp as claimed in claim 1 is characterized in that, described cavity (2) is a cylindrical cavity.
4, electrodeless discharge lamp as claimed in claim 1 is characterized in that, described cavity (2) is the four prism type cavity.
5, electrodeless discharge lamp as claimed in claim 1 is characterized in that, the inwall of described blister glass bulb (1) is provided with fluorescence coating.
6, electrodeless discharge lamp as claimed in claim 1 is characterized in that, all is being provided with fluorescence coating on the inwall of described blister glass bulb (1) and on the inwall of described tubulose glass bulb (3).
7, electrodeless discharge lamp as claimed in claim 1 is characterized in that, the outer wall of described cavity (2) is provided with a reflector layer (7).
As the described electrodeless discharge lamp of one of claim 1 to 7, it is characterized in that 8, the cross section of described tubulose glass bulb (3) is circular.
As the described electrodeless discharge lamp of one of claim 1 to 7, it is characterized in that 9, the cross section of described tubulose glass bulb (3) is oval.
As the described electrodeless discharge lamp of one of claim 1 to 7, it is characterized in that 10, the cross section of described tubulose glass bulb (3) is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201126030U CN201222485Y (en) | 2008-04-14 | 2008-04-14 | Electrodeless discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201126030U CN201222485Y (en) | 2008-04-14 | 2008-04-14 | Electrodeless discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201222485Y true CN201222485Y (en) | 2009-04-15 |
Family
ID=40575988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201126030U Expired - Fee Related CN201222485Y (en) | 2008-04-14 | 2008-04-14 | Electrodeless discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201222485Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306612A (en) * | 2011-04-28 | 2012-01-04 | 上海宏源照明电器有限公司 | Electromagnetic induction lamp capable of controlling temperature of cold end |
-
2008
- 2008-04-14 CN CNU2008201126030U patent/CN201222485Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306612A (en) * | 2011-04-28 | 2012-01-04 | 上海宏源照明电器有限公司 | Electromagnetic induction lamp capable of controlling temperature of cold end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20100414 |