CN101359572A - Electromagnetic induction low pressure electrodeless light source - Google Patents
Electromagnetic induction low pressure electrodeless light source Download PDFInfo
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- CN101359572A CN101359572A CNA2007101415280A CN200710141528A CN101359572A CN 101359572 A CN101359572 A CN 101359572A CN A2007101415280 A CNA2007101415280 A CN A2007101415280A CN 200710141528 A CN200710141528 A CN 200710141528A CN 101359572 A CN101359572 A CN 101359572A
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- electromagnetic induction
- electrodeless light
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Abstract
Disclosed is an electromagnetic low-voltage nonpolar light source, comprising a nonpolar discharge cavity, a two-hole magnet core, an input winding and a radio-frequency power source. The nonpolar discharge cavity comprises a closed loop and a tubular lamp housing which is filled with ionizable fillings, and a fluorescent coating is arranged on the inner surface of the lamp housing. The lamp housing is composed of two segments of straight tubes which are arranged in parallel at interval. The two-hole magnet core surrounds the two segments of straight tubes, with the two segments of straight tubes respectively disposed into the two holes on the two-hole magnet core. The input winding is composed of an inductive winding wound on the two-hole magnet core and two startup windings wound on the lamp housing; and the inductive winding and the two startup windings are connected in series, with the inductive winding being arranged between the startup windings. The radio-frequency power source is connected with the input winding to provide RF energy. The electromagnetic low-voltage nonpolar light source is simple in structure, simple in technique and high in starting performance.
Description
Technical field
The present invention relates to glow discharge spot lamp, particularly the low pressure electrodeless light source of electromagnetic induction.
Background technology
From the known this charging source of Chinese patent (patent No. is 96191079.8) that on June 23rd, 2004, disclosed notification number was CN1155049C.This kind glow discharge spot lamp, comprise: an electrodeless discharge chamber, it comprises and is filled with the tubular lamp shell that the filling material is mercury and inert gas, described lamp housing comprises the pipe of two configured in parallel, near parallel pipe one end or its, link to each other with the first side pipe, near the parallel pipe other end or its, link to each other with the second side pipe, thus the formation closed hoop; The first side pipe that is looped around described lamp housing is gone up first magnetic core of placing; The second side pipe that is looped around described lamp housing is gone up second magnetic core of placing; An input winding is constituted by being arranged on the induction winding of first on described first magnetic core and being arranged on the induction of second on described second magnetic core winding; A radio-frequency power supply that is connected with described input winding is used for enough high-frequency energies are supplied with described mercuryvapour and described inert gas, so that produce the discharge that discharging current is equal to or greater than 2A in described lamp housing; And the frequency of wherein said radio-frequency power supply is in the scope of 50KHz to 3MHz.The structure of this kind charging source is comparatively complicated, is further improved.
Summary of the invention
The objective of the invention is to provide a kind of structure and technology simple and have a low pressure electrodeless light source than high starting performance.
In order to achieve the above object, the present invention adopts following technical scheme: electromagnetic induction low pressure electrodeless light source comprises:
An electrodeless discharge chamber, it comprises the tubular lamp shell that constitutes closed circuit, and lamp housing contains ionogenic filling material, and the inner surface of lamp housing is provided with fluoresent coating, and described lamp housing comprises be separated by a spacing and two sections straight tubes of configured in parallel;
A diplopore magnetic core that is provided with around described two sections straight tubes, its two sections straight tubes place two Kong Weizhong of diplopore magnetic core respectively;
An input winding, constituted by two startup windings that are wound in the induction winding on the described diplopore magnetic core and be wound on the described lamp housing, described induction winding is connected with described two startup winding serial connections, and described induction winding is serially connected with described two and starts between the windings;
A radio-frequency power supply that is connected with described input winding is used to provide radio-frequency (RF) energy.
The described induction winding that is wound on the diplopore magnetic core has the multiple coiling plan of establishment.Its induction winding can all be wound on the magnet between the position, two holes of described diplopore magnetic core; The part winding of its induction in winding is wound on the magnet between the position, two holes of described diplopore magnetic core; Its induction winding is not wound on the magnet between the position, two holes of described diplopore magnetic core.The number of turns of described induction winding is usually located at 1 circle between 40 circles.
The tubular lamp shell of described formation closed circuit can be interconnected at U type opening part by two U type tubular lamp shells and form, and two U type tubular lamp shells are in the same plane; The tubular lamp shell of described formation closed circuit also can be made of two sections straight tubes of two U type tubular lamp shells and two U type tubular lamp shells of connection, and two U type tubular lamp shells are not in the same plane, the electrodeless discharge chamber just has closed three-dimensional contouring like this.
Two that are arranged on the described lamp housing start winding, can all be wound on the same section straight tube of one of described two sections straight tubes, also can be wound in respectively on described two sections straight tubes, can also be wound on the tubular lamp shell outside described two sections straight tubes.The number of turns of described startup winding is usually located at 1 circle between 20 circles, preferably between 2 circles enclose to 6.
The spacing that described two sections straight tubes are separated by can be selected between the 5mm to 80mm, preferably between 10mm to 60mm.
The frequency of described radio-frequency power supply is usually between 50KHz to 3MHz, preferably between 100KHz to 400KHz.
Described ionogenic filling material is mercury and inert gas.Its mercury can be liquid mercury, also can be solid-state mercury, and as amalgam, its amalgam can be arranged in the blast pipe; Its inert gas can be inert gas and their mixtures such as argon, krypton.
On the tubular lamp shell of described formation closed circuit, can be provided with and expose the less insede exhaust pipe of size, the better simply external blast pipe of manufacture craft also can be set.
Described diplopore magnetic core constitutes with Ferrite Material usually, preferably selects MnZn ferrite material for use, also can select nickel-zinc-ferrite material for use; The diplopore magnetic core preferably is cut into two, and the position, two holes of cutting the back magnetic core is all opened wide, so that described two sections straight tubes can conveniently be put into two Kong Weizhong of magnetic core, each end of the magnetic core that is cut open is ground smoothly.
The present invention has following good effect:
In apparatus of the present invention, the input winding is made of two startup windings that are wound in the induction winding on the described diplopore magnetic core and be wound on the described lamp housing, and its input winding and described diplopore magnetic core have constituted the power coupling device of light source.Compared with prior art, at first be that the structure and the manufacturing process of power coupling device of the present invention greatly simplified, make efficient and greatly improve; Next is that making two the startup windings simple and that cost is very low that comprised in the input winding make light source have very high startup ability, is used for the comparatively complicated auxiliary actuating apparatus that light source starts and need not special configuration; Power coupling device of the present invention in addition is easy to a single-ended fixing or place and fixes, and has widened its scope of application.
Description of drawings
Fig. 1 is the structure chart of existing electromagnetic induction low pressure electrodeless light source;
Fig. 2 is the schematic diagram of electromagnetic induction low pressure electrodeless light source of the present invention;
Fig. 3 is the schematic diagram of second embodiment of electromagnetic induction low pressure electrodeless light source of the present invention;
Fig. 4 is the schematic diagram of another embodiment of electromagnetic induction low pressure electrodeless light source of the present invention.
Embodiment
Fig. 1 shows the structural representation of the electromagnetic induction low pressure electrodeless light source of prior art.Electrodeless discharge chamber 1 comprises 2,3 and two side pipes 4,5 of two straight tubes that be arranged in parallel.Two side pipes 4,5 are connected the gas between straight tube 2 and the straight tube 3, constitute the structure of closed loop whereby.Two single hole magnetic core 6,7 and circles that are arranged on side pipe 4 and the side pipe 5 are very far away around two induction winding 8,9 its distances apart on the single hole magnetic core 6,7, and two induction winding 8,9 has four lead-out wires at least, links to each other with radio-frequency power supply 10 by lead-out wire.Obviously, two induction windings 8,9 need coiling respectively, and two single hole magnetic core 6,7 need fixedly mount respectively.As seen from the figure, the lead-out wires of two induction windings 8,9 are more, and they are comparatively complicated with being connected of radio-frequency power supply 10, and have outside the connecting line of growing is exposed to, and this will influence the attractive in appearance of its product and may produce serious electromagnetic interference.
Fig. 2 shows first embodiment of electromagnetic induction low pressure electrodeless light source of the present invention.Electrodeless discharge chamber 1 comprises that the tubular lamp shell of 17,18, two U types of tubular lamp shell of two U types interconnects at U type opening part and constitutes the structure of closed loop, and these two U type tubular lamp shells are in the same plane.Lamp housing contains ionogenic filling material mercury and inert gas argon, and the inner surface of lamp housing is provided with fluoresent coating.As seen from the figure, comprise two sections straight tubes 13,14 in the tubular lamp shell that constitutes closed circuit, they are separated by a spacing and be arranged in parallel; Diplopore magnetic core 11 is arranged on described two sections straight tubes 13,14, and two position, hole has been placed described two sections straight tubes 13,14 respectively; Be provided with an induction winding 12 on diplopore magnetic core 11, this induction winding all is wound on the magnet between the position, 11 two holes of diplopore magnetic core; Two start winding 15,16 and directly are wound on the straight-run of pipe 14; Constituted the input winding by induction winding 12 and two startup winding 15,16 series connection, wherein responded to winding 12 and be serially connected with between two startup windings 15,16; Radio-frequency power supply 10 with start the input winding that winding 15,16 constituted by induction winding 12 and two and be electrically connected.
When power connection, the output of radio-frequency power supply 10 provides an initial high pressure, and this high pressure is applied to two and starts on the winding 15,16, and these two gas ionizations that start near the lamp housing of winding are punctured, promptly cause the capacitive character generating, carry out the transition to inductively coupled discharge then.These two start winding, and it is made simply, cost is very low.
During work, the energy that is started power coupling device that winding 15,16 constituted radio-frequency power supply 10 is provided by diplopore magnetic core 11 and induction winding 12 and two is coupled in the electrodeless discharge chamber 1, discharges to drive electrodeless discharge chamber 1.The induction winding 12 of present embodiment all is wound on the magnet between the position, two holes, by chance can carry out discharge work in its electrodeless discharge chamber 1 of two place's driven in phase of the tubular lamp shell that constitutes closed circuit.The ultraviolet light that the discharge in electrodeless discharge chamber 1 is launched is converted to visible light by the fluoresent coating that is arranged on the lamp housing inner surface.
About the shape in two holes of diplopore magnetic core, can be circular, also can other shape.For the ease of the setting of diplopore magnetic core or be fixed on the lamp housing, the diplopore magnetic core preferably is cut into two, position, two holes after the incision is all opened wide, so that described two sections straight tubes 13,14 can be put into two Kong Weizhong of diplopore magnetic core easily, each end of the magnetic core that is cut open is preferably ground level and smooth, so that magnetic core is installed the gap minimum between each cut end of back; When the magnetic core that is cut open fixedly mounts, can select metal material parcel magnetic core for use, so that its two parts magnetic core tightly is fixed together; In order to suppress possible electromagnetic interference, can use electric conductor the metal material of parcel usefulness to be connected on one of the two poles of the earth of power line a plurality of capacitors that include a capacitor in its electric conductor or be connected in series.
Selection and setting about described ionogenic filling material mercury.Its mercury can be liquid mercury, also can be solid-state mercury, as selecting the mercury alloy that contains that is called as amalgam for use, in order to reach higher light output after lamp is started very soon, also can add and select a kind of mercury alloy that contains that is called as the indium net for use, its mercury of selecting for use is placed in the blast pipe usually, also can select other local placement the in the chamber, mainly will consider its Temperature Influence, this is known to everybody.
Fig. 3 shows second embodiment of electromagnetic induction low pressure electrodeless light source of the present invention.This embodiment is similar to first embodiment shown in Figure 2, just two to start the set position of windings 15,16 different.In the present embodiment, one of them startup winding 15 is arranged on the straight-run of pipe 13, and another starts winding 16 and is arranged on another section straight tube 14.Two startup windings are set so also can make apparatus of the present invention clean boot.
Fig. 4 shows another embodiment of electromagnetic induction low pressure electrodeless light source of the present invention.In this embodiment, 13,14, two U type tubular lamp shells 17,18 of two sections straight tubes that electrodeless discharge chamber 1 comprises the tubular lamp shell 17,18 of two U types and is communicated with two U type tubular lamp shells are not in same plane, so electrodeless discharge chamber 1 has three-dimensional contouring; Lamp housing contains ionogenic filling material mercury and inert gas argon, and the lamp housing inner surface is provided with fluoresent coating; Induction winding 12 is set on the diplopore magnetic core 11; Two sections straight tubes 13,14 are positioned over two Kong Weizhong of diplopore magnetic core 11; On straight-run of pipe 13, be provided with startup winding 15, on another section straight tube 14, be provided with startup winding 16, wherein respond to winding 12 and be serially connected with between two startup windings 15,16.The electromagnetic induction low pressure electrodeless light source of this kind three-dimensional contouring carries out single-ended fixing easily at diplopore magnetic core 11 place ends, for example can be positioned over radio-frequency power supply 10 in the lamp socket, an end that has diplopore magnetic core 11 is fixed on the lamp socket, utilize the lamp holder be fixed on the lamp socket to receive on the power line again, this is the same with common double-U-shaped electricity-saving lamp to have shape attractive in appearance and convenient use.
Although showed and described and thought preferred embodiments of the invention at present, apparent, those skilled in the art can carry out various changes and improvements, and does not deviate from the restricted portion by appended claims institute.
Claims (9)
1, electromagnetic induction low pressure electrodeless light source comprises:
An electrodeless discharge chamber (1), it comprises the tubular lamp shell that constitutes closed circuit, and lamp housing contains ionogenic filling material, and the inner surface of lamp housing is provided with fluoresent coating, and described lamp housing comprises be separated by a spacing and two sections straight tubes (13,14) of configured in parallel;
A diplopore magnetic core (11) that is provided with around described two sections straight tubes (13,14), its two sections straight tubes (13,14) place two Kong Weizhong of diplopore magnetic core (11) respectively;
An input winding, constituted by two the startup windings (15,16) that are wound in the induction winding (12) on the described diplopore magnetic core and be wound on the described lamp housing, described induction winding is connected with described two startup winding serial connections, and described induction winding is serially connected with described two and starts between the windings;
A radio-frequency power supply (10) that is connected with described input winding is used to provide radio-frequency (RF) energy.
2, electromagnetic induction low pressure electrodeless light source as claimed in claim 1 is characterized in that, described induction winding has at least the part winding to be wound on the magnet between the position, two holes of described diplopore magnetic core.
3, electromagnetic induction low pressure electrodeless light source as claimed in claim 1 is characterized in that, the number of turns of described induction winding is between 1 circle encloses to 40.
4, electromagnetic induction low pressure electrodeless light source as claimed in claim 1 is characterized in that, the number of turns of described startup winding is between 1 circle encloses to 20.
5, electromagnetic induction low pressure electrodeless light source as claimed in claim 1, it is characterized in that, the tubular lamp shell of described formation closed circuit is interconnected at U type opening part by two U type tubular lamp shells (17,18) and forms, and two U type tubular lamp shells are in the same plane.
6, electromagnetic induction low pressure electrodeless light source as claimed in claim 1, it is characterized in that, the tubular lamp shell of described formation closed circuit is made of two sections straight tubes of two U type tubular lamp shells (17,18) and two U type tubular lamp shells of connection, and two U type tubular lamp shells are not in the same plane.
7, electromagnetic induction low pressure electrodeless light source as claimed in claim 1 is characterized in that, described two startup windings all are wound on the same section straight tube of one of described two sections straight tubes (13,14).
8, electromagnetic induction low pressure electrodeless light source as claimed in claim 1 is characterized in that, described two startup windings are wound in respectively on described two sections straight tubes (13,14).
As the described electromagnetic induction low pressure electrodeless light source of one of claim 1 to 8, it is characterized in that 9, the frequency of described radio-frequency power supply is between 50KHz to 3MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101415280A CN101359572A (en) | 2007-07-31 | 2007-07-31 | Electromagnetic induction low pressure electrodeless light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101415280A CN101359572A (en) | 2007-07-31 | 2007-07-31 | Electromagnetic induction low pressure electrodeless light source |
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| Publication Number | Publication Date |
|---|---|
| CN101359572A true CN101359572A (en) | 2009-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101415280A Pending CN101359572A (en) | 2007-07-31 | 2007-07-31 | Electromagnetic induction low pressure electrodeless light source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664133A (en) * | 2012-05-10 | 2012-09-12 | 张文知 | Electrodeless lamp tube for enhancing photosynthesis |
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2007
- 2007-07-31 CN CNA2007101415280A patent/CN101359572A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664133A (en) * | 2012-05-10 | 2012-09-12 | 张文知 | Electrodeless lamp tube for enhancing photosynthesis |
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Open date: 20090204 |