CN201413815Y

CN201413815Y - Eelctrodeless fluorescent bulb

Info

Publication number: CN201413815Y
Application number: CN2009200358209U
Authority: CN
Inventors: 李先栗; 李博
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-06
Filing date: 2009-03-06
Publication date: 2010-02-24
Anticipated expiration: 2019-03-06

Abstract

The utility model relates to an electrodeless fluorescent bulb, which belongs to a low air pressure mercury discharge bulb. Different from the prior electrodeless fluorescent lamp, a high-frequency magnetic core coil generating a high-frequency induction electric field is directly placed into a discharge space filled with working gases in a glass shell, so the high-frequency magnetic core coil ismore closely and effectively coupled with the discharge space, thereby the efficiency of the electrodeless fluorescent lamp is improved, the power lower limit and the working efficiency of the electrodeless fluorescent lamp are reduced and the volume and the weight of the electrodeless fluorescent lamp are reduced; in addition, a bulb shell, a core column, a lamp cap and other parts similar to anincandescent bulb as well as part of production process can be used, so the manufacturing cost of the electrodeless fluorescent lamp is reduced and the cost performance is improved. The electrodelessfluorescent bulb is suitable to be used as an illuminating light source with long service life for various applications.

Description

Electrodeless fluorescent lamp bulb

Affiliated technical field

A kind of electrodeless fluorescent lamp bulb belongs to the low-pressure discharge lamp of mercury, and is especially a kind of with directly pack into electrodeless fluorescent lamp bulb among the discharge space of HF coil with core.

Technical background

At present, obtain people's approval more and more widely based on the electrodeless florescent lamp of electromagnetic induction high-frequency pole-free ring discharge with its extra long life, anti-switch and good dimming behavior, development rapidly.Yet, HF coil with core/the air core coil of the generation high-frequency induction electric field of existing electrodeless florescent lamp all is positioned over outside the discharge space, no matter is that the electrodeless florescent lamp of coil " external " (is consulted " (light source principle and design " Zhou Taiming and write in December, 2006 second edition: Fig. 5 .7.4; Fig. 5 .7.8) still the electrodeless florescent lamp of coil " built-in " (consult the same: Fig. 5 .7.5 Fig. 5 .7.6 Fig. 5 .7.7), its HF coil with core/air core coil all is placed on the outside of the glass bulb that surrounds discharge space.The shortcoming of this existing structure is the coupling defective tightness of high frequency coil and discharge space, makes the efficient of electrodeless florescent lamp be difficult to the difficult further reduction of further raising, its power lower limit and operating frequency; On concrete structure, the structure that then shows as glass bulb is complicated, the volume of magnetic core coil is big, weight is heavier, thereby manufacturing cost is higher, causes the price of electrodeless florescent lamp and weight high, is unfavorable for promoting and popularizing.

Summary of the invention

In order to solve the above-mentioned subject matter that existing electrodeless florescent lamp exists; design of the present utility model be electrodeless florescent lamp is made bulb-shaped; by the blister glass bulb; phosphor powder layer/the diaphragm that is coated on the glass bulb inner surface adds phosphor powder layer; inject the working gas in the glass bulb; the amalgam of control mercury vapor pressure; HF coil with core and lead-out wire constitute; it is characterized in that will be wherein HF coil with core directly pack among the discharge space that is full of working gas in the glass bulb; the exit of coil is connected with the lead-out wire of bulb, and this lead-out wire and glass bulb are realized the air-tightness sealing by fusing and drawn glass bulb.

The schematic diagram of above-mentioned design of the present utility model such as Fig. 1.Because HF coil with core is installed in the discharge space, the high-frequency pole-free ring electric field that the high frequency magnetic field of its generation is inducted almost all falls among the discharge space, significantly improved the degree of coupling of high frequency coil and discharge space, help improving the efficient and the power lower limit and the operating frequency that reduce electrodeless lamp of electrodeless lamp, also can reduce the volume of HF coil with core significantly and alleviate its weight, also help coil and discharge bulb are dressed up an integral body, make the volume of whole electrodeless fluorescent lamp bulb, weight and production cost significantly reduce, effectively improve cost performance, thereby very help applying of electrodeless florescent lamp.

According to different needs, HF coil with core can be designed to difformity, as the doorframe shape of the annular/opening of the doorframe shape/opening of the annular/closure of cylindricality/closure (as Fig. 8-Figure 12) and other shapes.What deserves to be mentioned is annular/doorframe form height frequency magnetic core coil of opening, its magnetic core has one section space (consulting Fig. 6), this space medium-high frequency magnetic line of force is intensive, the high-frequency induction electric field is the strongest, be the place that is easy to light discharge in the whole discharge space most, therefore this magnetic core can effectively reduce the keep-alive voltage of electrodeless fluorescent lamp bulb.The magnetic core coil of existing electrodeless florescent lamp is can not adopt this open magnetic core not in region of discharge.

According to different envelope shape, HF coil with core Ke Yi Vertical installation (being placed as the reference position down with lead-out wire/lamp holder), as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 7; Also can keep flat and install, as Fig. 5.

In order further to improve luminous efficiency, at the surface-coated phosphor powder layer of HF coil with core, make it luminous under the region of discharge ultraviolet irradiation, can increase luminous flux effectively, this is and has the most conspicuous outstanding difference of electrodeless florescent lamp now; Be coated with the AI2O3/SiO2/TiO diaphragm in order to increase the adhesive strength of phosphor powder layer, can to add on the HF coil with core surface; In order further to improve the fineness on magnetic core surface, can be at surface coverage one deck glass of high frequency magnetic core/HF coil with core, and then apply AI2O3/SiO2/TiO diaphragm and phosphor powder layer; Another structure is above-mentioned coating phosphor powder layer to be changed into apply ultraviolet reflecting layer (ultraviolet ray to 254 nano wave lengths has very high reflectivity), the ultraviolet reflection that the magnetic core surface can be received increases the luminous flux that it sends to the phosphor powder layer of glass bulb inner surface.

Among the discharge space in the glass bulb of more easily HF coil with core directly being packed into, adopt the bubble shape glass bulb similar, similar stem stem to incandescent lamp bulb, being similar in the bulb filament is contained in the structure on the stem stem and HF coil with core is installed on the stem stem, the exit of HF coil with core is connected with the lead of stem stem, draw glass bulb by the outer lead of stem stem and form the lead-out wire of electrodeless fluorescent lamp bulb for this reason, the loudspeaker limit of stem stem and glass bulb mouth welding mutually become airtight seal.Wherein the installation of the production of glass cell-shell and stem stem, coil and stem stem seal etc. with the welding of glass bulb and all can copy the similar production technology of incandescent lamp bulb, thereby can produce in enormous quantities less expensively, effectively reduce production costs, and improve cost performance.

Used the custom in more than 100 year of various incandescent lamp bulbs in order to adapt to people, the bubble shape glass bulb of this electrodeless fluorescent lamp bulb is similar to incandescent lamp bulb spherical cell-shell, mushroom-shaped cell-shell, Pear-Shaped cell-shell, olive shape cell-shell, cylindricality cell-shell and taper cell-shell or the like, no matter liking of people and being selected.

When the whole lamp of the electrodeless fluorescent lamp bulb of the utility model and its being made of one of high frequency drive circuit structure, electrodeless fluorescent lamp bulb can not adorned lamp holder, and its lead-out wire directly is connected with high frequency drive circuit; When the present invention's electrodeless fluorescent lamp bulb and its high frequency drive circuit were all made independent used split-type structural, electrodeless fluorescent lamp bulb can be installed lamp holder.Need install the special lamp cap except that some situation, generally can use the parts such as lamp holder, lamp socket of existing incandescent lamp, promptly select various standard lamp heads as required for use, as the lamp holder of models such as E40/E39/E27/E26/E14/E12/E10, its schematic diagram as shown in Figure 5.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention further is illustrated.

Fig. 1. be the structural representation of design of the present utility model.

Fig. 2. be the structural representation of the utility model embodiment 1.

Fig. 3. be the front view of the structural representation of the utility model embodiment 2.

Fig. 4. be the end view of the structural representation of the utility model embodiment 2.

Fig. 5. be the structural representation of the utility model embodiment 3.

Fig. 6. be the structural representation of the utility model embodiment 4.

Fig. 7 is the structural representation of the utility model embodiment 5.

Fig. 8 is the cylinder shape magnetic core schematic diagram; Fig. 9 is a closed round ring shape magnetic core schematic diagram; Figure 10 is closed doorframe shape magnetic core schematic diagram; Figure 11 is the toroidal cores schematic diagram of opening; Figure 12 is the schematic diagram of the doorframe shape magnetic core of opening.

1 is bubble shape glass bulb among the figure; The 2nd, fluorescent coating or fluorescent material add the diaphragm coating; The 3rd, the glass on encirclement high frequency magnetic core or encirclement magnetic core coil surface; The 4th, high frequency magnetic core; The 5th, high frequency coil; The 6th, lead; The 7th, the stem stem body; The 8th, the surplus tail of blast pipe; The 9th, lead-out wire; The 10th, main amalgam; The 11st, Auxiliary amalgam; The 12nd, getter; The 13rd, working gas; The 14th, lamp holder; The 15th, the coating of uv reflectance.

Embodiment

First embodiment of the present utility model as shown in Figure 2.The core component HF coil with core is a cylindrical structural, and surface coverage one deck glass of cylindrical HF coil with core applies AI at glass outer surface ₂O ₃Diaphragm and phosphor powder layer.The exit of high frequency coil and the lead on the stem stem weld together.Glass bulb adopts spherical cell-shell, and inner surface applies AI ₂O ₃Diaphragm and phosphor powder layer.In order to control mercury vapor pressure is near the optimum value, adopts the high temperature amalgam, and it is positioned over the surplus tail of the lower blast pipe of temperature place.Lighting its brightness of back for fluorescent tube can " climb " fast, and Auxiliary amalgam has been installed.Charge into pure krypton, argon-mixed for working gas in the glass bulb, air pressure is 50Pa.For improving photoelectric properties, the continuous absorption impurity gas of getter has been installed.Operating frequency is 2.65MHZ, and power bracket is 3W to 15W.

Second embodiment of the present utility model as shown in Figure 3, Figure 4.Fig. 3 is a front view, and Fig. 4 is an end view.The core component HF coil with core adopts cirque structure, and promptly high frequency magnetic core is an annular.In the surface-coated of toroidal core coil AI ₂O ₃Diaphragm and phosphor powder layer.Other structure situation are similar to Example 1, no longer repeat.Because high frequency magnetic field forms closed magnetic circuit at the higher annular magnetic in-core of permeability, so operating frequency can be reduced to 200KHZ.The lamp power bracket of this embodiment is 3W to 9W.

The 3rd embodiment of the present utility model as shown in Figure 5.The core component HF coil with core adopts cirque structure, they are different with second embodiment is that its envelope shape is not ball bubble shape but taper shape or infundibulate, and corresponding its high frequency toroidal core coil is (being placed as the reference position down with lead-out wire or lamp holder) that is keeping flat installation.Other are similar to Example 2, need not to repeat.

The 4th embodiment of the present utility model as shown in Figure 6.The core component HF coil with core adopts the rectangular ring magnetic core (as Figure 12) of opening.Because the power of designed lamp is bigger, is 10W to 22W, the volume of magnetic core is corresponding with weight also big, therefore HF coil with core directly is fixed on the stem stem end face.The surface coverage of the magnetic core coil of present embodiment one deck glass, applied one deck ultraviolet reflecting layer (the ultraviolet reflection rate to 254 nano wave lengths is higher) at glass surface.Other and embodiment 2, embodiment 3 are similar, need not to repeat.

The 5th embodiment of the present utility model as shown in Figure 7.The difference of itself and embodiment 1 is that the E27 standard lamp head has been installed, and HF coil with core changes into by lamp holder and drawing, but the electrodeless fluorescent lamp bulb of separate connection when being used for that drive circuit and electrodeless fluorescent lamp bulb made split-type structural.

Electrodeless fluorescent lamp bulb of the present utility model is fit to make the long-life lighting source of various uses.

Claims

1. electrodeless fluorescent lamp bulb; by bulb-shaped glass bulb, the phosphor powder layer that is coated on the glass bulb inner surface or diaphragm add phosphor powder layer, inject the working gas in the glass bulb, amalgam, HF coil with core and the lead-out wire of control mercury vapor pressure constituted; it is characterized in that its HF coil with core directly packs among the discharge space that is full of working gas in the glass bulb; the exit of the coil lead-out wire of electrodeless fluorescent lamp bulb therewith connects, and this lead-out wire and glass bulb are realized the air-tightness sealing by fusing and drawn glass bulb.

2. a kind of electrodeless fluorescent lamp bulb as claimed in claim 1, the core shapes that it is characterized in that its HF coil with core is the cylindricality magnetic core, perhaps Bi He toroidal core, perhaps Bi He doorframe shape magnetic core, the perhaps toroidal core of opening, perhaps the doorframe shape magnetic core of opening.

3. a kind of electrodeless fluorescent lamp bulb as claimed in claim 1, the outer surface that it is characterized in that its high frequency magnetic core or HF coil with core has applied phosphor powder layer or diaphragm adds phosphor powder layer.

4. a kind of electrodeless fluorescent lamp bulb as claimed in claim 1 is characterized in that the outer surface of its high frequency magnetic core or HF coil with core has covered one deck glass, covers phosphor powder layer again or diaphragm adds phosphor powder layer at glass surface.

5. a kind of electrodeless fluorescent lamp bulb as claimed in claim 1 is characterized in that the outer surface of its high frequency magnetic core or HF coil with core has covered glass, has covered the coating of uv reflectance at the outer surface of glass.

6. a kind of electrodeless fluorescent lamp bulb as claimed in claim 1, it is characterized in that its HF coil with core is installed on the stem stem of bulb, the exit of described magnetic core coil is connected with the lead of stem stem, draw glass bulb by the outer lead of stem stem and form the lead-out wire of electrodeless fluorescent lamp bulb for this reason, the loudspeaker limit of stem stem and glass bulb mouth welding mutually become airtight seal.

7. a kind of electrodeless fluorescent lamp bulb as claimed in claim 1 is characterized in that its lead-out wire is connected with standard lamp head, and these lamp holders are E40, and perhaps E 39, and perhaps E 27, perhaps E26, perhaps E14 or E12, perhaps E10 type lamp holder.