CN202275799U - Self-starting hot cathode ultraviolet lamp - Google Patents
Self-starting hot cathode ultraviolet lamp Download PDFInfo
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- CN202275799U CN202275799U CN2011204078543U CN201120407854U CN202275799U CN 202275799 U CN202275799 U CN 202275799U CN 2011204078543 U CN2011204078543 U CN 2011204078543U CN 201120407854 U CN201120407854 U CN 201120407854U CN 202275799 U CN202275799 U CN 202275799U
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- hot cathode
- heating filament
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Abstract
The utility model discloses a self-starting hot cathode ultraviolet lamp, which comprises a sealing lamp tube. One end of the lamp tube is provided with a clamping plate which is sealed in connection mode. Mercury and inert gas are filled in the lamp tube, a single double-spiral shaped heating filamentary cathode bended in the shape of V or U is arranged on the clamping plate, resistance of the filamentary cathode ranges from 10ohm to 25ohm, electronic powder is coated at two ends of the filamentary cathode, and the middle portion is connected with a gas suction piece coated with gas suction agent through a metal frame. The self-starting hot cathode ultraviolet lamp adopts the V-shaped or U-shaped single filamentary cathode structure with two ends coated by the electronic powder to build discharge voltage between electrodes, thereby being compact in structure, convenient to install and high in ultraviolet strength, meeting requirements in special occasions, effectively prolonging service life of the filamentary cathode and being convenient to install.
Description
Technical field
The utility model relates to a kind of ultra-violet lamp, especially a kind of self-starting hot cathode ultra-violet lamp.
Background technology
We belong to a kind of hot cathode arc discharge low pressure mercury lamp by ultraviolet germicidal lamp used in everyday (UV lamp); Adopt tungsten filament to do cathode body; Its surface applied low work function metal oxide (electronics powder) is after the energising, through the heating work of tungsten filament; Make the evaporation of mercury and other materials in fluorescent tube, form low-pressure mercury vapour, the principle that the electron stream that utilizes the low work function metal oxide to produce excites low-pressure mercury vapour to produce electric arc produces the ultraviolet ray that sterilizing is used.
Existing ultra-violet lamp adopts the cylindrical shape fluorescent tube usually, and its two ends are equipped with filament, and the design of this type of pair filament needs to give simultaneously the filament power supply at two ends, and the installation of ultra-violet lamp is comparatively complicated, and lamp starts and needs starter and ballast when lighting.In addition, fluorescent tube produces foreign gas owing to adopt the filament heating to produce mercury vapour and make electronics powder emitting electrons in the sealing fluorescent tube inevitably, under the situation that lacks countermeasure, life-span of existing quartz burner is had a negative impact; In addition, in some applications, such as the higher uitraviolet intensity of needs, but the volume of lamp body is restricted.The low pressure mercury lamp of early stage disclosed a kind of incandescent lamp formula fills mercury in the incandescent lamp of low colour temperature, through the filament heating and excite mercury, make mercury atom produce 254 millimicrons of ultraviolet rays.The advantage of this lamp is that it does not need ballast and starter when lighting, so profile can be done globulate, volume is very little, and is easy to use.But incandescent lamp formula low pressure mercury lamp also has shortcoming, because the power of input in the lamp, the overwhelming majority is used for to the filament heating, has only seldom that part energy is used for making the mercury atom exciting radiation, so its 254 millimicrons of ultraviolet conversion efficiencies are lower than hot cathode low pressure mercury lamp.
Can not satisfy the needs of some special occasions with this two quartz burner traditional design that is representative, a kind of novel compact conformation of market demand is installed the high quartz burner of simple and easy uitraviolet intensity.
The utility model content
In order to overcome the shortcoming of prior art; And satisfy the needs in market; The utility model provides a kind of single-ended self-starting hot cathode ultra-violet lamp that adopts V-shape or U font filament; Utilize the heating filament that the electronic emitting material that is coated in the filament two ends is heated the generation hot electron, and then excite the interior mercury atom arc discharge of fluorescent tube, and when lamp is lighted, do not need starter just can realize self-starting with the stronger ultraviolet radiation of generation.
The technical scheme that the utility model adopts can be described as:
A kind of self-starting hot cathode ultra-violet lamp; Comprise the sealing fluorescent tube of processing by quartz glass; Be filled with mercury and inert gas in the annular seal space of said fluorescent tube and be provided with the heating filament; Said heating filament is bent into the V font by wall scroll double helix heating filament or the U font is arranged, the resistance value of said heating filament is between 10 to 25 ohm, and said heating filament two ends also are coated with the electronics powder.
As a kind of improvement of above technical scheme, said wall scroll double helix heating filament be single tungsten filament coiling or, the main and auxiliary type or the cable type that adopt the design of many tungsten filaments to turn to.
A kind of improvement as above technical scheme; The two ends of said heating filament are drawn through the metal lead wire of sealing and fixing in clamping plate and are fixing; Said heating filament through metallic support be connected with the metal that contains nickel, zirconium, aluminium or nickel, zirconium, aluminium forms the inspiration piece that alloy is processed, and is coated with getter on the said inspiration piece.
A kind of improvement as above technical scheme is fixed with glass blocks on the said metal lead wire, and said metallic support is fixed in the said glass blocks, and an end of said metallic support is fixedly connected with said inspiration piece, and the other end is fixedly connected with said heating filament.
As a kind of improvement of above technical scheme, said inspiration piece is positioned at the front of said heating filament.
As a kind of improvement of above technical scheme, said inspiration piece and said heating filament are arranged in parallel.
As a kind of improvement of above technical scheme, said inspiration piece is sheet or arc, and its length is less than 40mm, and width is less than 17mm.
As a kind of improvement of above technical scheme, the two ends of said heating filament are wrapped in respectively on one section heart yearn and together with said heart yearn and are fixed on the said metal lead wire.
As a kind of improvement of above technical scheme, mercury that is filled with in the said fluorescent tube and inert gas have the pressure between 0.1 to 2.5KPa.
A kind of improvement as above technical scheme; Said self-starting hot cathode ultra-violet lamp further comprises lamp holder and clamping plate; Said clamping plate are processed to form the end in fluorescent tube through clamp, and said clamping plate are covered with by lamp holder, and said lamp holder is spiral or socket type or pins type.
The beneficial effect of the utility model is:
Novel self-starting hot cathode ultra-violet lamp disclosed in the utility model has adopted the wall scroll Double-spiral filament design of V font or U font and has combined the design of filament resistance value between 10 to 25 ohm; Optimized filamentray structure is provided need not to change the fluorescent tube size or use under the prerequisite of labyrinth (such as many heating filaments); It does not need starter just can realize self-starting when lamp is lighted, and after lamp is lighted, most of energy is used for low-pressure mercury vapour in the exciter lamp and carries out arc discharge to produce stronger ultraviolet radiation.The utility model only applies the electronics powder at the filament two ends, avoided producing when the electronics powder at filament middle part receives thermal oxidative reaction incomplete in the conventional design problem of foreign gas.In addition, the middle part of heating filament also be connected with one be coated with getter inspiration piece, the getter that applies it on can adsorb the foreign gas in the annular seal space effectively, further prolonging lamp tube service life.The utility model makes more miniaturization of product, and uitraviolet intensity is high, install and use more convenient, thereby make the scope of application of product wider.
Description of drawings
Fig. 1 is the structural representation of the self-starting hot cathode ultra-violet lamp of the utility model;
Fig. 2 is the end view of the self-starting hot cathode ultra-violet lamp among Fig. 1;
Fig. 3 is the partial enlarged drawing at A place among Fig. 1.
Embodiment
As depicted in figs. 1 and 2; The self-starting hot cathode ultra-violet lamp that the utility model proposed comprises the fluorescent tube 1 of sealing; Said fluorescent tube 1 one ends are provided with the clamping plate 2 of sealing-in; At fluorescent tube 1 internal fixation heating filament 3 and inspiration piece 6 are arranged through metal lead wire 7 and metallic support 5 on the clamping plate 2, the clamping plate 2 outer lamp holders 10 that are used for fixing bulb and connect external power source that are covered with.Wherein, fluorescent tube 1 adopts quartz to process, farthest to let ultraviolet ray see through; Be filled with mercury and the inert gases such as argon, neon or krypton of pressure between 0.1 to 2.5KPa in the fluorescent tube 1; Lamp holder 10 can be selected for use spiral or socket type or pins type structure according to concrete needs.
In one embodiment; Heating filament 3 adopts the tungsten filament of wall scroll double helix and curves " V " font and arranges; And only be coated with electronics powder 4 at heating filament 3 two ends; Filament middle part (being the bottom of V font heating filament 3) is connected with the inspiration piece 6 that is coated with getter through a metallic support 5, and this inspiration piece 6 is processed by the alloy that the metal that contains nickel, zirconium, aluminium or nickel, zirconium, aluminium form, and getter can be selected zirconium powder for use.
Certainly, in a further embodiment, heating filament 3 can curve " U " font to reach same effect.In addition, heating filament 3 can select for use single tungsten filament to turn to the filament of double helix shape, or adopts many tungsten filament designs to turn to the wall scroll filament design of main and auxiliary type or cable type, and filament is similarly the double helix shape.Notice that the filamentray structure of " V " font or " U " font is a kind of electronics powder that cooperates at the filament two ends and uses the design that can realize the arc discharge function, it does not need starter just can realize self-starting when lamp is lighted.
Preferably, the resistance value of heating filament 3 can provide just right caloric value and operating current between 10 to 25 ohm, can improve the efficient of bulb effectively.
Two tops of the heating filament 3 of V font or U font are fixed in the annular seal space of fluorescent tube 1 through the metal lead wire 7 of sealing and fixing in clamping plate 2; Metal lead wire 7 is connected with molybdenum sheets 11 in being encapsulated in clamping plate 2, and molybdenum sheet 11 is connected with limit on the lamp holder 10 through metal pins 12 again.In addition; Be used for fixing on two metal lead wires 7 of the filament 3 that generates heat and also be fixed with glass blocks 8; Metallic support 5 runs through and is fixed on the glass blocks 8; The two ends of metallic support 5 are fixedly connected with inspiration piece 6 with heating filament 3 respectively, and inspiration piece 6 is positioned at the positive of heating filament 3 and is arranged in parallel to absorb the foreign gas that the filament adstante febre produces with heating filament 3.Preferably, inspiration piece 6 is sheet or arc, and its length is less than 40mm, and width is less than 17mm, absorption impurity gas to greatest extent under the situation that does not influence luminous efficiency.
In addition, the two ends of heating filament 3 are wrapped on one section heart yearn 9 respectively and weld or clamp together with heart yearn 9 and are fixed on the metal lead wire 7, and heart yearn 9 is by the metal that contains tungsten, molybdenum or nickel, or the alloy that tungsten, molybdenum or nickel form is processed.The filament that has heart yearn have be connected firmly, intensity is high, the assembling process damage is little, antivibration is effective, the filament wattage loss is little, the advantage of long service life.
Like this; The present invention uses the hot cathode of single double-helical V font or U font heating filament as fluorescent tube; Under the effect of electric current, receive thermal electron to excite mercury vapor discharge to produce electric arc as the electronics powder on the two ends of the heating filament of negative electrode, electric current is most of to produce ultraviolet radiation through electric arc; Fraction flows through filament makes filament keep uniform temperature, and lamp does not need starter just can realize self-starting when lighting.The V font or the U font structure of heating filament help setting up electric discharge between electrodes voltage; The uncoated electronics powder 4 in filament middle part; Reduced the generation of foreign gas effectively; The getter that applies on the inspiration piece 6 simultaneously can adsorb the foreign gas in the annular seal space effectively, further prolonging lamp tube service life.
The above be the utility model preferred embodiment, it does not constitute the restriction to the utility model protection range, so long as realize that with essentially identical means the purpose of the utility model all should belong to the protection range of the utility model.
Claims (10)
1. self-starting hot cathode ultra-violet lamp; Comprise the sealing fluorescent tube of processing by quartz glass (1); It is characterized in that: be filled with mercury and inert gas in the annular seal space of said fluorescent tube (1) and be provided with heating filament (3); Said heating filament (3) is bent into the V font for wall scroll double helix heating filament or the U font is arranged, the resistance value of said heating filament (3) is between 10 to 25 ohm, and said heating filament (3) two ends also are coated with electronics powder (4).
2. self-starting hot cathode ultra-violet lamp according to claim 1 is characterized in that: said wall scroll double helix heating filament (3) is single tungsten filament coiling, or adopts many tungsten filament designs to turn to main and auxiliary type or cable type.
3. self-starting hot cathode ultra-violet lamp according to claim 1; It is characterized in that: the two ends of said heating filament (3) are drawn through the metal lead wire (7) of sealing and fixing in clamping plate (2) and are fixing; Said heating filament (3) is connected with the inspiration piece (6) that alloy that the metal that contains nickel, zirconium, aluminium or nickel, zirconium, aluminium forms is processed through metallic support (5), and said inspiration piece is coated with getter on (6).
4. self-starting hot cathode ultra-violet lamp according to claim 3; It is characterized in that: be fixed with glass blocks (8) on the said metal lead wire (7); Said metallic support (5) is fixed in the said glass blocks (8); One end of said metallic support (5) is fixedly connected with said inspiration piece (6), and the other end is fixedly connected with said heating filament (3).
5. self-starting hot cathode ultra-violet lamp according to claim 3 is characterized in that: said inspiration piece (6) is positioned at the front of said heating filament (3).
6. self-starting hot cathode ultra-violet lamp according to claim 3 is characterized in that: said inspiration piece (6) is arranged in parallel with said heating filament (3).
7. self-starting hot cathode ultra-violet lamp according to claim 3 is characterized in that: said inspiration piece (6) is sheet or arc, and its length is less than 40mm, and width is less than 17mm.
8. self-starting hot cathode ultra-violet lamp according to claim 3 is characterized in that: the two ends of said heating filament (3) are wrapped in one section heart yearn (9) respectively and go up and be fixed on the said metal lead wire (7) together with said heart yearn (9).
9. self-starting hot cathode ultra-violet lamp according to claim 1 is characterized in that: the mercury and the inert gas that are filled with in the said fluorescent tube (1) have the pressure between 0.1 to 2.5KPa.
10. self-starting hot cathode ultra-violet lamp according to claim 1; It is characterized in that: said self-starting hot cathode ultra-violet lamp further comprises lamp holder (10) and clamping plate (2); Said clamping plate (2) are processed to form in an end of fluorescent tube (1) through clamp; Said clamping plate (2) are covered with by said lamp holder (10), and said lamp holder (10) is spiral or socket type or pins type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204078543U CN202275799U (en) | 2011-10-24 | 2011-10-24 | Self-starting hot cathode ultraviolet lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204078543U CN202275799U (en) | 2011-10-24 | 2011-10-24 | Self-starting hot cathode ultraviolet lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275799U true CN202275799U (en) | 2012-06-13 |
Family
ID=46196140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204078543U Expired - Lifetime CN202275799U (en) | 2011-10-24 | 2011-10-24 | Self-starting hot cathode ultraviolet lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202275799U (en) |
-
2011
- 2011-10-24 CN CN2011204078543U patent/CN202275799U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 529728 Industrial West Zone, Gonghe Town, Jiangmen, Guangdong, Heshan Patentee after: Guangdong gmy optical Polytron Technologies Inc. Address before: 529728 Industrial West Zone, Gonghe Town, Jiangmen, Guangdong, Heshan Patentee before: HESHAN GMY LIGHTING AND ELECTRICAL Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 529728, Xinxing Road, Gonghe Town, Heshan, Guangdong, Jiangmen 328 Patentee after: GMY LIGHTING TECHNOLOGY Co.,Ltd. Address before: 529728 Industrial West Zone, Gonghe Town, Jiangmen, Guangdong, Heshan Patentee before: Guangdong gmy optical Polytron Technologies Inc. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |
|
| CX01 | Expiry of patent term |