CN1204594C - Fluorescent lamp - Google Patents
Fluorescent lamp Download PDFInfo
- Publication number
- CN1204594C CN1204594C CNB021084726A CN02108472A CN1204594C CN 1204594 C CN1204594 C CN 1204594C CN B021084726 A CNB021084726 A CN B021084726A CN 02108472 A CN02108472 A CN 02108472A CN 1204594 C CN1204594 C CN 1204594C
- Authority
- CN
- China
- Prior art keywords
- pair
- lead
- wire
- stem
- fluorescent lamp
- Prior art date
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/067—Main electrodes for low-pressure discharge lamps
- H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/067—Main electrodes for low-pressure discharge lamps
- H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The present invention provides a fluorescent lamp to prevent short circuit between a pair of lead wires by blocking continual adherence and deposition of electron emission matter on a stem between the pair of lead-in wires (lead wires). The fluorescent lamp is provided with an arc tube bulb (1), a phosphor film (3) formed on the inner surface of the arc tube bulb, a discharge medium enclosed in the arc tube bulb, a pair of filaments (5) arranged within the arc tube bulb for generation of discharge, a pair of internal lead wires (4) to support the filaments, a stem (2) supporting the pair of internal lead wires (4, 4) and with a pair of glass members (8, 8) each protruding from one internal lead wire (4) to the direction of the other internal lead wire (4) and fixed to each internal lead wire (4) so as to overlap with each other but without contacting each other.
Description
Technical field
The present invention relates to a kind of fluorescent lamp, the conductive material by the electronic emission material piled up on stem stem etc. continues paradoxical discharge when preventing the later stage in lamp life-span.
Background technology
Usually, when lighting fluorescent lamp with high frequency for a long time with hot cathode, the lead-in wire front end component of the electronic emission material such as barium monoxide of the tungsten of filament materials such as (W) or coating thereon and near the nickel (Ni) of the formation inner lead filament etc. can splash, these splashes are attached on the envelope walls and produce melanism, and this splash also adheres to and is deposited near the front end face of the tubaeform stem stem the filament.Special when the later stage in life-span of lamp, after splashing, causes the electronic emission material of filament the half-wave discharge of lamp.If produce such paradoxical discharge, so the material of filament material or inner lead splash violently, these splash material easily on the front end face attached near the tubaeform stem stem the filament.
Because such attachment is an electric conductor, so, have the possibility that forms conductive path so if be stacked into to a certain degree.That is, if pile up the electrode material etc. that splashes on the front end face of tubaeform stem stem, this material that splashes contacts a pair of inner lead (lead-in wire) that mutual isolation is adhered to respectively so, can form conductive path by the above-mentioned material that splashes between a pair of inner lead.Therefore, a pair of inner lead by the deposit of the above-mentioned electronic emission material that on the front end face of tubaeform stem stem, forms conductive path and mutual conduction.
Usually, if filament broken string when the later stage in life-span, the starting drive failure of oscillations of fluorescent lamp so, but the conductive path at the deposit that produces by the material that splashes as described above makes under the situation of conducting between a pair of inner lead (short circuit), even the filament broken string still has the danger that starting drive is worked on.For example, the starting drive of fluorescent lamp is under the situation of the inverter of the so-called electric capacity preheating method of the pre of fluorescent lamp that filament preheating circuit is connected in parallel, if the filament broken string, pre is cut off the failure of oscillations because of start-up circuit so.But, form under the situation of conductive path at the deposit by the electronic emission material between a pair of inner lead, though the filament broken string, but because electric current is mobile in conductive path, so pre is kept the state that is connected with starting drive, starting drive continues vibration.In this case, because a filament of the broken string of fluorescent lamp not as hot cathode, so repeat so-called half-wave discharge, is proceeded the startup that paradoxical discharge produces.Make the conductive path heating by this paradoxical discharge, make tubaeform stem stem heat damaged, and have the excessive electric current that flows in the conductive path, produce the unfavorable condition of big power loss.
Usually, under the exhausted fully situation of splashing of filament, lamp does not start at the electronic emission material, but under the situation of inverter startup, because secondary voltage height, even the exhaustion so the electronic emission material splashes is fully still proceeded half-wave discharge, under these circumstances, flow in the conductive path of the deposit that electric current forms between above-mentioned a pair of inner lead, make the heating of this conductive path, make tubaeform stem stem breakage, and flow excessive electric current and produce big power loss.
Therefore, proposed to prevent to cause the technology of the short circuit between a pair of inner lead because of this electronic emission material in the past.As the one example, the fluorescent lamp that for example has (Japan) spy to open to disclose in the flat 11-120960 communique (hereinafter referred to as ' and prior art 1 ') or special open the fluorescent lamp that discloses in the flat 2000-311654 communique (hereinafter referred to as ' prior art 2 ').These prior aries 1,2 increase conductive path between pair of lead wires by projection is set simply on the tubaeform stem stem between pair of lead wires, thereby prevent the short circuit between pair of lead wires.
But, in such prior art 1,2, have the not high problem of short circuit effect that prevents between pair of lead wires.
Promptly, usually, inclosure air pressure in the fluorescent lamp is hundreds of Pa, under this pressure state, the filament material that splashes before the later stage in lamp life-span and the electronic emission material of lead-in wire are not from filament evaporation radially simply, but becoming the evaporation of splashing of a kind of turbulent condition, a part is adhered to because of the revolution of electronic emission material with respect to the projection on the above-mentioned stem stem and is deposited on the stem stem.Therefore, this electronic emission material forms on the stem stem between pair of lead wires continuously, forms conductive path easily.Particularly under the situation of inverter startup, exist owing to the secondary voltage height, so between pair of lead wires, be easy to generate the problem of short circuit.
Summary of the invention
The present invention is the invention of having considered this situation, its purpose is to provide a kind of fluorescent lamp, can stop on the stem stem between a pair of lead-in wire (lead-in wire), to adhere to continuously and pile up the electronic emission material, suppress to follow the persistent anomaly discharge of short circuit between a pair of lead-in wire etc.
The invention of scheme 1 is a kind of fluorescent lamp, it is characterized in that, this fluorescent lamp comprises: the light transmission discharge vessel; The fluorescence coating that forms on the inner surface side of light transmission discharge vessel; Enclose the discharge medium in the light transmission discharge vessel; For the inside at the light transmission discharge vessel produces a pair of filament electrode that discharge is disposed; Support a pair of lead-in wire at the both ends of this electrode; Support the stem stem of a pair of lead-in wire; On each lead-in wire of described a pair of lead-in wire, side-prominent and mutually non-contiguously, form a pair of glass component that the gap of 1.0～5.0mm is fixed with overlapping to another lead-in wire along the longitudinal direction of lead-in wire from a lead-in wire.
The invention invention of scheme 2 is a kind of fluorescent lamps, it is characterized in that this fluorescent lamp comprises: the light transmission discharge vessel; The fluorescence coating that forms on the inner surface side of light transmission discharge vessel; Enclose the discharge medium in the light transmission discharge vessel; For the inside at the light transmission discharge vessel produces a pair of filament electrode that discharge is disposed; Support a pair of lead-in wire at the both ends of this electrode; Support the stem stem of a pair of lead-in wire; On each lead-in wire of described a pair of lead-in wire, side-prominent and mutually non-contiguously, form a pair of glass component that the gap of 1.0～5.0mm is fixed with overlapping to another lead-in wire along the longitudinal direction of lead-in wire from a lead-in wire; Described a pair of glass component edge is outstanding with the direction of the longitudinal direction almost parallel of described filament electrode.
Invention according to scheme 1 or 2, because a pair of glass component that is separately fixed on a pair of lead-in wire covers a part on the stem stem in the mode of being covered from filament electrode, be deposited on this a pair of glass component so the electronic emission material that splashes from filament electrode adheres to respectively, on each glass component, form conductive layer respectively.
Wherein, make on a pair of lead-in wire mutually and to overlap non-contiguously owing to this a pair of glass component is separately fixed at, and required gap is set and overlaps along the direction of principal axis of lead-in wire between two free leading section, so two conductive layer on a pair of glass component are by electric disjunction.
Particularly, can prevent effectively that accumulation is adhered in the falling of electronic emission material in this gap by longitudinal direction (electrode axis) the almost parallel ground along filament electrode, the gap of scheme 2 is prolonged.
According to the invention of scheme 1 or 2, owing to can stop the conductive path that forms the electronic emission material that connects a pair of lead-in wire, thus can prevent the short circuit between this a pair of lead-in wire, by filament broken string, the vibration of starter/stopper reliably.
Because by root at least and its periphery on the stem stem of a pair of glass component and a pair of lead-in wire of electrode isolation ground covering, so the electronic emission material that comes self-electrode revolution respectively on the width of a pair of glass component or diametric(al), on stem stem, adhere to accumulation, even the formation conductive path also can prevent to adhere on the root on the stem stem of a pair of lead-in wire and its periphery and pile up the electronic emission material.Therefore, even under situation about fluorescent lamp being connected on the high starting drive of the such secondary voltage of inverter, also can suppress the continuing of paradoxical discharge of half-wave discharge etc.
The invention of scheme 3 is scheme 1 or 2 described fluorescent lamps, it is characterized in that, be L1 from a described lead-in wire to the outstanding length of an outstanding glass component of another lead-in wire, is L2 from another lead-in wire to the outstanding length of another outstanding glass component of a lead-in wire, when the distance between a pair of lead-in wire is D, has the structure that satisfies formula L1+L2＞D.
According to the present invention, because the distance D between outstanding length L 1, L2 and a pair of lead-in wire of a pair of glass component of fixing respectively on a pair of lead-in wire is set up the relation of L1+L2＞D, so it is overlapping between the free leading section of this a pair of glass component with different steps, between these free front ends, can be roughly parallel to the axial gap that electrode axis ground forms lead-in wire.
The invention of scheme 4 is scheme 1 or 2 described fluorescent lamps, it is characterized in that, at least one of described a pair of glass component is fixed in the non-rectilinear portion that forms described lead-in wire.
Part that is used for filament supports and processes etc. can be enumerated by the non-rectilinear portion of lead-in wire, but is not limited thereto.As the shape of non-rectilinear portion, allow curved shape, bending shape etc.
According to the present invention,,, can improve the constant intensity of glass component so glass component and lead-in wire become the complicated solid shape that engages because glass component is fixed on the non-rectilinear portion of lead-in wire.
The invention of scheme 5 is a kind of fluorescent lamps, it is characterized in that, this fluorescent lamp comprises: the light transmission discharge vessel; The fluorescence coating that on the inner surface side of light transmission discharge vessel, forms; Enclose the discharge medium in the light transmission discharge vessel; For the inside at the light transmission discharge vessel produces a pair of filament electrode that discharge is disposed; Support a pair of lead-in wire at the both ends of this electrode; Support the stem stem of a pair of lead-in wire; And glass component, the taper gap that longitudinal direction almost parallel ground fixing isolator with a pair of lead-in wire and formation and described filament electrode prolongs on the stem stem between described a pair of lead-in wire.
According to the present invention, by glass component fixing on the stem stem between a pair of lead-in wire, in the open end in the taper gap that prolongs with the electrode axis almost parallel, even falling after rise, the electronic emission material adheres to accumulation, also can prevent to adhere to the inside of the taper leading section that is accumulated to its place ahead.
Therefore, because the part of the leading section that is equivalent to the taper gap of using of the conductive path that will form by the electronic emission material of piling up on the stem stem between a pair of lead-in wire is come disjunction midway, so can prevent the short circuit between a pair of lead-in wire in advance.
The invention of scheme 6 is scheme 5 described fluorescent lamps, it is characterized in that, glass component is spherical, cylindric, cylindraceous any one shape.
According to the present invention, by spherical, cylindric, cylindraceous glass component is fixed on the end face of stem stem, between the end face of this stem stem and spherical sphere periphery cylindric or cylindraceous, can be simply and promptly form with the electrode axis almost parallel and on the electrode axis direction gap of taper.
The invention of scheme 7 is lighting devices, it is characterized in that, this lighting device comprises: the lighting device body; And the scheme 1,2,5 that in the lighting device body, disposes or 6 any one described fluorescent lamp.
In the present invention, lighting device refers to utilize fluorescent lamp can obtain the article of illuminating effect.The starting drive of fluorescent lamp starting can be built in the device body, but starting drive also can be split.If the lighting device body is to be furnished with to be installed in the nappe of incandescent lamp with the E shape lamp holder in the socket etc., so also can be with lighting device as lamp-bulb type fluorescent lamp.
Description of drawings
Fig. 1 is the major part amplification front view of the fluorescent lamp of the present invention the 1st embodiment.
Fig. 2 is the sectional arrangement drawing of the electrode hermetic terminal of fluorescent lamp shown in Figure 1.
Fig. 3 is the side view of Fig. 1.
Fig. 4 is the major part amplification front view of explanation a pair of bead effect shown in Figure 1.
Fig. 5 (A) is the major part amplification front view of the fluorescent lamp of the present invention the 2nd embodiment, the side view of Fig. 5 (A) of Fig. 5 (B).
The amplification sectional arrangement drawing of the major part in the taper gap that the end face that Fig. 6 is expression by sphere of the globular glass pearl of Fig. 5 (A), (B) and tubaeform stem stem forms.
Loudspeaker shown in Fig. 7 presentation graphs 1 grade oblique view of the forming process of glass tube.
Fig. 8 is illustrated in loudspeaker shown in Figure 7 oblique view with the operation that penetrates pair of lead wires and blast pipe in the glass tube.
Fig. 9 represents to make an end of oviduct shown in Figure 8 to shrink and is configured as the oblique view of the operation of tubaeform stem stem.
Figure 10 is illustrated on the end face of tubaeform stem stem shown in Figure 9 the fixedly oblique view of the operation of globular glass pearl.
The amplification front view of the major part of the variation of the bead of Figure 11 (A) expression above-mentioned the 2nd embodiment of the present invention, Figure 11 (B) is the side view of Figure 11 (A).
The amplification front view of the major part of another variation of the bead of Figure 12 (A) expression the 2nd embodiment of the present invention, Figure 12 (B) is the side view of Figure 12 (A).
Figure 13 (A) is the major part amplification front view of the 3rd embodiment of the present invention, and Figure 13 (B) is the side view of Figure 13 (A).
Figure 14 (A) is the XIVA-XIVA line profile of Figure 13 (A), and Figure 14 (B) is the XIVB-XIVB line profile of Figure 13 (B).
Figure 15 amplifies the sectional arrangement drawing of the electrode hermetic terminal of the fluorescent lamp of representing the present invention the 4th embodiment.
Figure 16 amplifies the sectional arrangement drawing of the electrode hermetic terminal of the fluorescent lamp of representing the present invention the 5th embodiment.
Figure 17 is the schematic plan view of the compact fluorescent lamp of the present invention the 6th embodiment.
Figure 18 represents the profile of the lighting device of the present invention the 7th embodiment.
Embodiment
Below, according to Fig. 1～Figure 18 embodiments of the invention are described.Attached with same numeral among these figure for identical or suitable part.
Fig. 1 is an electrode and its peripheral front elevation that amplifies the fluorescent lamp of the straight pipe type of expression by not shown inverter startup etc., and Fig. 2 is the sectional arrangement drawing of electrode hermetic terminal that comprises the straight pipe type fluorescent lamp of this electrode.In these figure, fluorescent lamp forms fluorescent film 3 by the end of the luminous tube 1 of tubaeform stem stem 2 airtight inaccessible glass tubes compositions on the inner surface of luminous tube 1, and in the inside of this luminous tube 1, rare gas such as the mercury of inclosure ormal weight, argon.
Then, in above-mentioned tubaeform stem stem 2, connect a pair of inner lead (lead) 4,4 of the lead-in wire of composition such as fixing nickel airtightly.On the inner end of these inner leads 4,4, cross over filament supports 5 and constitute electrode.Filament 5 is made up of tungsten filament, forms with coiled coil or triple coil.Filament 5 is interposed in the foot section 6,6 that its two ends form by the hook portion 7,7 that forms on inner lead 4,4.In filament 5, apply electronic emission materials (not shown) such as barium monoxide.
Then, on a pair of inner lead 4,4, the end as the bead (glass bead) 8,8 of bar-shaped glass component is fixed on the ground that roughly meets at right angles respectively.Label 9 is blast pipes.As shown in Figure 3, each bead 8,8 is by heating cylindric glass bar 8a, the 8b of a pair of two specified diameters on one side in the radially contact both sides of each inner lead 4, suppress and fusion is an one on one side to radially inner side, and it is fixing by inner lead 4,4, as shown in Figure 1 and Figure 2, the central shaft almost parallel ground single-column with respect to electrode 5 supports.
A pair of bead 8,8 can change mutually and highly is fixed on each inner lead 4,4, opposed towards each other inner lead 4,4 pleurapophysis come out to make them not contact respectively under different step states, direction of principal axis pars intermedia at electrode 5 between free leading section 8c, the 8c of these beades 8,8 overlaps with different step states, between these two free leading section 8c, 8c, form required gap g along the direction of principal axis of inner lead 4,4.
Promptly, a pair of bead 8,8 forms with electrode 5 coaxial shape ground when the plane of electrode 5 is observed, is L1 at an inner lead 4 from an one bead 8 to another inner lead 4 side-prominent outstanding length, is L2 from another inner lead 4 of another bead 8 to an inner lead 4 side-prominent outstanding length, when the distance that a pair of inner lead is 4 is D, form the structure that following formula (1), (2) are set up.
Formula 1
L1+L2＞D ……(1)
L1 or L2＞D/2 ... (2)
When the fluorescent lamp to such formation detects filament 5 broken strings, if start for a long time by having the inverter that stops this filament 5 energising functions, so as shown in Figure 4, constitute the tungsten of filament 5 or applied the electronic emission material thereon and filament 5 near the nickel of inner lead 4 splash, these electronic emission materials 10 that splash adhere to the one side (among Fig. 4 for top) of filament 5 sides that are deposited in a pair of bead 8,8 and the part of the front end face (end face) of the tubaeform stem stem 2 that do not covered by a pair of bead 8,8 on.
But, because the gap g between free leading section 8c, the 8c of a pair of bead 8,8 is the minim gap along the parallel prolongation of direction of principal axis of electrode 5, so can prevent from the g of this gap, to adhere to, pile up electronic emission material 10.
Therefore, in above in Fig. 4 of a pair of bead 8,8 of piling up electronic emission material 10, form conductive path respectively, but because these conductive paths pass through gap g by electric disjunction, so can prevent from advance to produce short circuit 4,4 of these a pair of inner leads.
By a pair of bead 8,8 not on the end face of the tubaeform stem stem 2 of coated electrode 5, even because of this electronic emission material 10 of accumulation is adhered in the falling of electronic emission material 10, but owing on tubaeform stem stem 2, cover by each bead 8,8 respectively around the root of upright a pair of inner lead 4,4 and its, be deposited in these roots so can prevent that electronic emission material 10 from adhering to.
Therefore, because the conductive path that forms by the electronic emission material of piling up on the tubaeform stem stem 2 10 is carried out electric disjunction at root and its periphery (root) of a pair of inner lead 4,4 by these a pair of inner leads 4,4, so can prevent from advance to be short-circuited at these 4,4 of a pair of inner leads.That is, the conductive path that is formed respectively by electronic emission material 10 grades of piling up on each bead 8 is carried out electric disjunction by the gap g of the leading section of the root of each inner lead 4,4 and each bead 8.
The height dimension of gap g (the longitudinal direction size of inner lead 4) is preferably in the scope of 0.5～10.0mm.If the height dimension of gap g is lower than 0.5mm, the piling height of the material of piling up on the bead 8 that splashes increases so, has the danger that contacts with another bead 8.And, if splashing of piling up on the bead 8,8 is too approaching between the material, may produce micro discharge between the two so, still bad.On the other hand,, need to increase the inner lead 4 of this part so, fluorescent lamp is maximized if the height dimension of gap g surpasses 10.0mm.If consideration is created conditions or the application of hot cathode structure, the optimum scope of the height dimension of gap g is 1.0～5.0mm so.
Fig. 5 (A), (B) are the major part front elevations of the present invention the 2nd embodiment.This embodiment is characterised in that, fixes the spherical bead 11 of required sphere diameter on the end face of the tubaeform stem stem 2 of 4,4 of a pair of inner leads, replaces above-mentioned a pair of bead 8,8.
Fig. 7～Figure 10 represents the manufacturing process of present embodiment, and at first, as shown in Figure 7, an end heating and melting and the expansion of the glass tube 2a cylindraceous that tubaeform stem stem 2 is used are configured as tubaeform glass tube 2b.
Then, as shown in Figure 8, in this tubaeform glass tube 2b, penetrate a pair of inner lead 4,4 and blast pipe 9, small-diameter end portions heating and melting with flaring pipe 2b, radially shrink (compacting), form tubaeform stem stem 2 shown in Figure 9, fixing integratedly with a pair of inner lead 4,4 and blast pipe 9 thereon simultaneously.
Then, as shown in Figure 9, with a part of heating and melting of globular glass pearl 11, as shown in figure 10, welding is on the end face of the tubaeform stem stem 2 of 4,4 of a pair of inner leads.
Thus, as shown in Figure 6, between the sphere of the end face 2c of tubaeform stem stem 2 and globular glass pearl 11, axial 360 ° of ground form to the tapered taper of this central axis direction gap ga at the center of bead 11.
Therefore, as shown in Figure 6, on the end face 2c of the outer surface of globular glass pearl 11 and tubaeform stem stem 2, pile up electronic emission material 10 even adhere to, in the ga of this gap, particularly with the taper gap ga of the direction of the central shaft almost parallel of electrode 5 in, can stop the accumulation of adhering to of electronic emission material 10.
Therefore, because the electronic emission material 10 formed conductive paths of on the end face 2c of the outer surface of globular glass pearl 10 and tubaeform stem stem 2, piling up, in this gap ga part by electrical disconnect, so can prevent short circuit in advance through 4,4 of the inner leads of these conductive paths.
Figure 11 (A), (B) expression replaces this bead 11, with the columned bead 12 of required diameter with the embodiment of its central shaft on the end face 2c of the tubaeform stem stem 2 that is fixed on 4,4 of a pair of inner leads perpendicular to the direction of the central shaft of electrode 5.
According to present embodiment, as shown in Figure 6, owing to also can between the end face 2c of the periphery of cylindric bead 12 and tubaeform stem stem 2, form along the taper gap ga of the axial parallel direction of electrode 5, so same with above-mentioned globular glass pearl 11, can prevent the short circuit of 4,4 of a pair of inner leads.And, even the bead cylindraceous 13 shown in these cylindric bead 12 Figure 12 (A), (B), owing to can form the axial taper gap ga that is parallel to electrode 5 by the inner peripheral surface of this bead 13 and the end face 2c of tubaeform stem stem 2, so can play same effect.
Figure 13 (A) is the major part front elevation of the present invention the 3rd embodiment, and Figure 13 (B) is its side view, and Figure 14 (A) is the XIVA-XIVA line profile of Figure 13 (A), and Figure 14 (B) is the XIVB-XIVB line profile of Figure 13 (B).It is characterized in that, 4,4 of a pair of inner leads, the fixing a pair of hollow glass bead 14,14 of enclosing impure gases such as air or nitrogen with the pressure higher of cross-over connection than the pressure in the luminous tube 1.
According to present embodiment, suppose not to be provided with above-mentioned bead 8,11,12,13, because the conductive path that the electronic emission material of piling up on tubaeform stem stem 2 in the lamp later stage 10 forms is short-circuited 4,4 of a pair of inner leads, produces electric arc, so this is to inner lead 4,4 fusions.So, the also fusion of an end of fixing a pair of hollow glass bead 14,14 on the inner lead 4,4 of this fusion, hollow glass bead 14 breaks, and the inclosure gas of its inside is discharged in the luminous tube 1 sharp.Therefore, the electric arc quilt that inner lead is 4,4 is extinguishing arc forcibly, can extinguish lamp forcibly.
Thus, can prevent reliably in advance that luminous tube 1 or its lamp holder, its ligthing paraphernalia etc. that the sustained short-circuit because of 4,4 of inner leads causes are melted.
Figure 15 is the sectional arrangement drawing that amplifies the electrode hermetic terminal of the fluorescent lamp of representing the present invention the 4th embodiment.Because the fluorescent lamp of present embodiment has the structure identical with the 1st embodiment except the fixed position difference of bead 8,8, thus attached for same structure with same numeral, and omit its detailed explanation.
Because it is bigger than the distance (D among Fig. 1) of 4,4 in the lead-in wire in the sealing of tubaeform stem stem 2 to be interposed in the distance of 7,7 of hook portions of the foot section 6,6 that the two ends of filament 5 form, so a pair of inner lead 4,4 portion therebetween is provided with two kinks, as a whole, become non-linear shapes.
Then, in two place's kinks of inner lead 4,4, at least one side, fix an end of the bead 8,8 of bar-shaped glass component respectively.Thus, bead 8,8 is configured to make front end free end 8c, 8c roughly towards right angle orientation with respect to the line part of inner lead 4,4.So, a pair of bead 8,8 can be changed mutually highly be fixed on each inner lead 4,4, opposed towards each other inner lead 4,4 pleurapophysis come out to make them not contact respectively under different step states, direction of principal axis pars intermedia at electrode 5 between free leading section 8c, the 8c of these beades 8,8 overlaps with different step states, between these two free leading section 8c, 8c, form required gap g along the direction of principal axis of inner lead 4,4.
In the present embodiment, because bead 8,8 is fixed on the kink (zone shown in the dotted line of inner lead 4) of the non-rectilinear portion of inner lead 4,4, so compare with the situation of the line part that is fixed on inner lead 4,4, fixed-area increases, and the solid shape complexity can further improve constant intensity.
Figure 16 is the sectional arrangement drawing that amplifies the electrode hermetic terminal of the fluorescent lamp of representing the present invention the 5th embodiment.The fluorescent lamp of present embodiment has the structure identical with the 4th embodiment except the fixed area difference of bead 8,8.That is, in the 5th embodiment,,, can further improve constant intensity so increase with the fixed-area of inner lead 4,4 because the non-rectilinear portion of the inner lead 4,4 of fixing glass pearl 8,8 forms two place's kinks (zone shown in the dotted line of inner lead 4).Here, the external diameter of bead 8,8 is about 3.5mm, the about 2.0mm of the external diameter of filament 5.So, bigger by the external diameter that makes bead 8,8 than the external diameter of filament 5, can further reduce the electronic emission material of when the later stage in lamp life-span, piling up on the tubaeform stem stem 2 10.
In the various embodiments described above, illustrated that the stem stem that supports inner lead 4,4 is tubaeform stem stem 2, but the present invention is not limited to this, as the tectosome that supports inner lead 4,4, be also included within the splash tectosome of material shape of inner lead 4,4 accumulations.For example, stem stem can be so-called button-type stem stem, also can be the stem stem of the glass bulb end of collapsed seal stem stem etc. being processed and forms supporting structure.
Figure 17 is the schematic plan view of the compact fluorescent lamp of the embodiment of the invention 6.Compact fluorescent lamp 20 has the glass bulb 1,1 ' as the straight tube-like container that is set up in parallel, and this glass bulb 1,1 ' is communicated with by bridge 21.This glass bulb 1,1 ' the about 17.5mm of external diameter of pipe, glass bulb 1,1 ' length of tube all are 1150mm.At this glass bulb 1, a distolateral sealing of 1 ' and the electrode hermetic terminal of the 5th embodiment same configuration, encapsulate the 1st and the 2nd electrode (not shown).Bridge 21 is in order to produce discharge between this electrode, be communicated with discharge space in distance glass bulb 1,1 ' the other end 1c, 1c ' 30mm position, forms by jetting.
Between bridge 21 and glass bulb 1, another distolateral end 1c, 1c ' of 1 ', exist the absence of discharge path that does not form discharge path to form zone 22, this absence of discharge path forms zone 22 and becomes the coldest portion.The 23rd, resinous lamp holder, by binding agent etc. be installed in glass bulb 1,1 ' one distolateral.The 24th, from the outstanding lamp holder pin of lamp holder 23.
The compact fluorescent lamp 20 of present embodiment is as the 5th embodiment, since with the non-rectilinear portion of the inner lead 4,4 of fixing glass pearl 8,8 as comprising two place's kinks (zone shown in the dotted line of inner lead 4) zone, so can confirm by experiment, the situation that like that bead 8 is fixed in the line part of inner lead 4 with the 1st embodiment is compared, and constant intensity improves about 20%.
Figure 18 is the profile of the lighting device of expression the present invention the 7th embodiment.This lighting device has represented to use the embedding lamp of top board of the compact fluorescent lamp of two the 6th embodiment.In the drawings, the 20th, compact fluorescent lamp, the 30th, lighting device.
According to the invention of scheme 1 or scheme 2, because on a pair of lead-in wire respectively fixing one To glass component so that cover like that a part on the stem stem from the filament electrode crested, So can prevent that the material that splashes because of filament electrode etc. from falling after rise to adhere to is deposited on the stem stem, And since a pair of glass component mutually overlap non-contiguously, or two free leading section it Between form required gap along the longitudinal direction of lead-in wire, so pile up on a pair of glass component The material that splashes by electric disjunction. Thus, stop to form the conductive path that the material that splashes produces, Suppress to produce short circuit between a pair of lead-in wire or continue to carry out paradoxical discharge.
According to the invention of scheme 3, because a pair of glass of on a pair of lead-in wire, fixing respectively Distance B between the outstanding length L 1 of parts, L2 and a pair of lead-in wire makes the relation of L1+L2＞D Set up, thus overlapping with different steps between the free leading section of this a pair of glass component, Between these free front ends, can be roughly parallel to the axle side that electrode axis ground forms lead-in wire To the gap.
According to the invention of scheme 3, at the glass of fixing by the stem stem between a pair of lead-in wire In the open end in the taper gap that prolongs with electrode axis almost parallel that parts produce, namely The electronic emission material is fallen after rise adhere to accumulation, also can prevent from adhering to the point that is accumulated to its place ahead The inside of areolar section.
Therefore, because will be by the electronic emission material of piling up on the stem stem between a pair of lead-in wire The part of the leading section that is equivalent to the taper gap of midway using of the conductive path that forms is come disjunction, So can prevent in advance the short circuit between a pair of lead-in wire.
According to the invention of scheme 4, because glass component is fixed on the non-rectilinear section of lead-in wire, So glass component and lead-in wire become the complicated solid shape that engages, and can improve glass portion The constant intensity of part.
According to the invention of scheme 5 or 6, by with spherical, cylindric, cylindraceous glass Parts are fixed on the end face of stem stem, at this stem stem end face and spherical sphere or cylindric Or between the periphery cylindraceous, can be with the electrode axis almost parallel and along electrode axis Simply and promptly form the gap of taper on the direction.
According to the invention of scheme 7, can provide any one of being furnished with scheme 1 to 6 described The lighting device of fluorescent lamp.
Claims (4)
1. a fluorescent lamp is characterized in that, comprising:
The light transmission discharge vessel;
The luminescent coating that on the inner surface side of light transmission discharge vessel, forms;
Enclose the discharge medium in the light transmission discharge vessel;
For the inside at the light transmission discharge vessel produces a pair of filament electrode that discharge is disposed;
Support a pair of lead-in wire at these electrode both ends;
Support the stem stem of a pair of lead-in wire; And
On each lead-in wire of described a pair of lead-in wire, side-prominent and mutually non-contiguously, form a pair of glass component that the gap of 1.0～5.0mm is fixed with overlapping to another lead-in wire along the longitudinal direction of lead-in wire from a lead-in wire.
2. fluorescent lamp as claimed in claim 1 is characterized in that,
Described a pair of glass component edge is outstanding with the direction of the longitudinal direction almost parallel of described filament electrode.
3. fluorescent lamp as claimed in claim 1 or 2 is characterized in that, at least one of described a pair of glass component is fixed in the non-rectilinear portion that is formed at described lead-in wire.
4. a lighting device is characterized in that, comprising:
The lighting device body; And
Each described fluorescent lamp of the claim 1 to 3 that in the lighting device body, disposes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP095793/2001 | 2001-03-29 | ||
| JP2001095793 | 2001-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1379435A CN1379435A (en) | 2002-11-13 |
| CN1204594C true CN1204594C (en) | 2005-06-01 |
Family
ID=18949799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021084726A Expired - Fee Related CN1204594C (en) | 2001-03-29 | 2002-03-29 | Fluorescent lamp |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100453092B1 (en) |
| CN (1) | CN1204594C (en) |
| TW (1) | TW552611B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123166B (en) * | 2006-08-11 | 2010-06-16 | 松下电器产业株式会社 | Electrode mount, arc tube and manufacturing method thereof, vapor discharge lamp, fluorescent lamp |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3175274B2 (en) * | 1992-03-27 | 2001-06-11 | 東芝ライテック株式会社 | Low pressure mercury vapor discharge lamp |
| JPH06338289A (en) * | 1993-03-29 | 1994-12-06 | Toshiba Lighting & Technol Corp | Fluorescent lamp and fluorescent lamp apparatus |
| US5394056A (en) * | 1993-04-07 | 1995-02-28 | General Electric Company | Opening of capsule inside sealed lamp |
| JPH11120959A (en) * | 1997-10-16 | 1999-04-30 | Hitachi Ltd | Fluorescent lamp |
| JP3527851B2 (en) * | 1997-12-16 | 2004-05-17 | 日立ライティング株式会社 | Fluorescent lamp, fluorescent lamp manufacturing method and fluorescent lamp device |
| JP3414329B2 (en) * | 1999-08-05 | 2003-06-09 | 松下電器産業株式会社 | Fluorescent lamp |
| JP2001185084A (en) * | 1999-12-28 | 2001-07-06 | Toshiba Lighting & Technology Corp | Fluorescent lamp and lightening fixture |
-
2002
- 2002-03-20 TW TW091105342A patent/TW552611B/en not_active IP Right Cessation
- 2002-03-25 KR KR10-2002-0016042A patent/KR100453092B1/en not_active IP Right Cessation
- 2002-03-29 CN CNB021084726A patent/CN1204594C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123166B (en) * | 2006-08-11 | 2010-06-16 | 松下电器产业株式会社 | Electrode mount, arc tube and manufacturing method thereof, vapor discharge lamp, fluorescent lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020077086A (en) | 2002-10-11 |
| KR100453092B1 (en) | 2004-10-14 |
| TW552611B (en) | 2003-09-11 |
| CN1379435A (en) | 2002-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1147917C (en) | Low-pressure mercury vapor discharge lamp and illuminator | |
| US7423370B2 (en) | Arc tube with shortened total length, manufacturing method for arc tube, and low-pressure mercury lamp | |
| US20060006781A1 (en) | Lamp having an arc tube protected from breakage | |
| CN1747117A (en) | Extra-high pressure mercury lamp | |
| US7915799B2 (en) | Field emission lamp having carbon nanotubes | |
| CN1828805A (en) | Manufacturing method of arc tube having a glass tube of a flat-spiral shape, arc tube, and fluorescent lamp | |
| TWI287820B (en) | Dielectric barrier-discharge lamp with socket | |
| US20100045185A1 (en) | Cathode for discharge lamp and discharge lamp using the same | |
| CN1204594C (en) | Fluorescent lamp | |
| CN1185683C (en) | Fluorescent lamp and making method thereof | |
| EP3861253B1 (en) | Linear led light source and manufacturing method | |
| US7800293B2 (en) | Field emission lamp and method for making the same | |
| JP4099095B2 (en) | Low pressure mercury lamp | |
| CN1198312C (en) | Discharge lamp, lamp device and manufacture thereof | |
| US7394189B2 (en) | Compact self-ballasted fluorescent lamp having a circuit board with connection members | |
| US7876051B2 (en) | Electrode mount, arc tube, low-pressure mercury vapor discharge lamp, compact self-ballasted fluorescent lamp and method of manufacturing the arc tube | |
| JP2006172978A (en) | Fluorescent lamp, backlight unit, liquid crystal television, and manufacturing method of fluorescent lamp | |
| JP3893886B2 (en) | Lamp with reflector | |
| KR20010095250A (en) | Discharge lamp and lamp unit | |
| JP4820051B2 (en) | Arc tube, arc tube manufacturing method, and low-pressure mercury lamp | |
| EP1092230B1 (en) | Arc discharge lamp | |
| JP2005203309A (en) | Discharge lamp and lighting system | |
| JP4095371B2 (en) | Fluorescent lamp manufacturing method and fluorescent lamp | |
| JPH09245737A (en) | Lamp and rare gas discharge lamp and manufacture thereof | |
| JPH11307062A (en) | Lamp, noble gas discharge lamp, and its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050601 Termination date: 20150329 |
|
| EXPY | Termination of patent right or utility model |