CN1160925A - Flexible fluorescent lamp, fluorescent lamp device and method for producing fluorescent lamp - Google Patents
Flexible fluorescent lamp, fluorescent lamp device and method for producing fluorescent lamp Download PDFInfo
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- CN1160925A CN1160925A CN 96116769 CN96116769A CN1160925A CN 1160925 A CN1160925 A CN 1160925A CN 96116769 CN96116769 CN 96116769 CN 96116769 A CN96116769 A CN 96116769A CN 1160925 A CN1160925 A CN 1160925A
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Abstract
The invention provides a bending type fluorescent lamp and fluorescent lamp device, which can reduce the likelihood ratio of poor molding and damage of lamp tube, prevent the reduction of product yield and inhibit the degradation of fluorescence, a bending type fluorescent lamp tube 70 is provided with above three bending passageway parts (72a-72c,73a,73b), and also with a plurality of linear parts (77a,77b,78a-78c) connected with the three bending passageway parts, at least one linear part needs to perform torsion processing.
Description
The present invention relates to flexible fluorescent lamp and adopt the fluorescent light fittings of this flexible fluorescent lamp.
Recently, developed a kind of fluorescent light fittings, and widely popularizing, it is configured to, end at light cover is equipped with the screw cap that incandescent lamp bulb is used, the ignition device of packing in the light cover, and the other end of above-mentioned light cover is provided with a dividing plate simultaneously, flexible fluorescent lamp is housed on it, and also available as required bulb covers above-mentioned fluorescent lamp.This fluorescent light fittings, the ignition device of in light cover, having packed into fluorescent lamp lighting being used.Therefore can replace incandescent lamp bulb, in the screw lamp holder that the incandescent lamp bulb of packing into is used,, be referred to as bulb type fluorescent lamp apparatus as energy-saving light source.
Yet, be used for the flexible fluorescent lamp of this bulb type fluorescent lamp apparatus, in order to become the alternative lamp of incandescent lamp bulb, require small compact, wish simultaneously illuminating part is made high density to obtain high brightness.For this reason, the shape with fluorescent tube curves complicated shape.
For example, have lamp now or the fluorescent tube bending machining is become saddle type, or be bonded into three-dimensional structure by the communicative engagement portion (bridge part) that engages (blowing the broken り of I engages) formation with connecting.In the occasion of saddle type fluorescent tube, the glass tube that originally is straight tube shape is bent to the U font at three places, see from integral body to curve the shape of a saddle.This saddle type fluorescent tube because crooked place is few, can become saddle type with straight glass tube thermoplastic time processing.
Yet, tend to recently this flexible fluorescent lamp densification and high brightnessization more., open shown in the clear 62-58561 communique as the spy, trial-production bends to the high density shape fluorescent lamp of 5 U of place fonts for this reason.At this moment, be configured in the end line part of encapsulated electrode and the line part that links a plurality of U oxbow portion on the same circumference or on polygonal summit, dispose bend three-dimensionally, can seek intensive illuminating part to realize densification.
Yet, be disposed at a plurality of line parts on the same circumference like this or during the locational complicated shape fluorescent tube of vertex of polygon in processing, only think to process to be shaped to be difficulty very with simple bending, and need more man-hour, be appreciated that, for avoiding this point, just be shaped than being easier to as reverse processing midway at fluorescent tube.
With regard to the place of reversing processing, the general bend of considering at the U font.Promptly be that the coiling fluorescent tube is shaped as U oxbow portion on profile roll under the thermoplastic state, therefore reverses processing experiment in the place of this bending.Yet carry out bending simultaneously and reverse same place, the distortion of glass-tube is big, has situations such as breakage sometimes, reduces rate of finished products.Therefore be necessary separately bending machining and the operation of reversing processing.
Yet, same bend separation procedure is carried out bending machining respectively and reverses adding man-hour, in case processing is reversed in Wan Qu place thermoplastic once again, then because bend generation residual strain at this moment and residual stress, pipe is shaped difficult, be difficult for obtaining desirable shape, the proportion of goods damageds uprise, and qualification rate reduces.
And, although inner surface of tube has been pre-formed the fluorophor tunicle, if the bending machining of carrying out different operations with reverse processing, be formed on fluorophor tunicle on the inner surface through heating several times, therefore the thermal degradation when of fluorophor can become serious.
At above-mentioned situation, the object of the present invention is to provide a kind of bad or damaged incidence of shaping that reduces pipe, prevent the reduction of rate of finished products, also can restrain the flexible fluorescent lamp and the fluorescent light fittings of phosphor degradation simultaneously.
The flexible fluorescent lamp of the invention of claim 1, comprise: have more than 3 by bend or junction surface or by the two curved pathway portion that constitutes, and a plurality of line parts that are connected in these curved pathway portions are arranged, form the fluorescent tube of a continuous discharge path as a whole; Be arranged at the electrode of above-mentioned lamp tube end; Be formed at the fluorophor tunicle of above-mentioned the inner surface of tube; It is characterized in that, be formed in the line part between the above-mentioned a plurality of curved pathway portion and have one at least through reversing processing.
According to the invention of claim 1, because line part reverses processing, therefore, line part is handled by a thermoplastic, can reverse processing, and the shaping that can reduce fluorescent tube thus is bad or damaged, and can restrain the thermal degradation when of fluorophor tunicle.
And, by applying such processing of reversing,, also can be shaped easily even bend to the pipe of three-dimensional shape.
The invention of claim 2, according to the described flexible fluorescent lamp of claim 1, it is characterized in that pipe has the curved pathway portion more than 5, the line part of connection curved pathway portion that is positioned at outermost end one side and other curved pathway portion that is attached thereto is reversed processing respectively.
Invention according to claim 2, because connecting the line part of curved pathway portion that is positioned at outermost end one side and other curved pathway portion that is attached thereto is to reverse processing respectively, therefore curved pathway portion of the curved pathway portion that is positioned at outermost end one side can be made, the small compact and the densification of fluorescent lamp might be realized near central portion.
The invention of claim 3, according to the described flexible fluorescent lamp of claim 2, it is characterized in that lamp tube ends portion is positioned on the diagonal mutually, simultaneously, have at least in a plurality of curved pathway portion 2 be configured in above-mentioned diagonal intersect direction, with respect on above-mentioned cornerwise both sides.
Invention according to claim 3, the electronics lamp tube ends is positioned on the diagonal mutually, simultaneously, has at least 2 to be configured in and the above-mentioned diagonal direction that intersects in a plurality of curved pathway portion, and on above-mentioned relatively cornerwise both sides, be not only small-sized but also highdensity fluorescent lamp therefore.
The invention of claim 4, is characterized in that it is smooth shape that the face of the curved interior of the curved pathway portion of fluorescent tube central portion is made a part according to claim 2 or 3 described flexible fluorescent lamps.
Invention according to claim 4, because it is smooth shape that the face of the curved interior of the curved pathway portion of fluorescent tube central portion is made a part, can make bending machining along the bending forming model by this tabular surface shape, the curvature of central portion curved pathway portion is done for a short time, can miniaturization.And owing to can make shape along above-mentioned tabular surface to the bending forming model, molding becomes easy after bending machining.Again,, but, be difficult for finding out from the outside owing to be positioned at the inboard of pipe even the face of curved interior is a flat condition, harmless in outward appearance.
The flexible fluorescent lamp device of the invention of claim 5 is characterized in that possessing: the one end is provided with the light cover of lamp holder; Be loaded on the dividing plate of the other end of above-mentioned light cover; Pack into ignition device in the above-mentioned lid that separates by aforementioned barriers; Be loaded on the aforementioned barriers and with above-mentioned ignition device be electrically connected by each described flexible fluorescent lamp in the claim 1 to 4.
Again, this occasion, ignition device can be ballast, electronic ballast circuit, high-frequency lighting circuit etc.And flexible fluorescent lamp can also can not add bulb coated with bulb, is exposed shape.
According to the invention of claim 5, can provide the bulb type fluorescent lamp apparatus of not only small-sized but also highdensity lamp as light source.
The invention of claim 6 by the described fluorescent light fittings of claim 5, is characterized in that the fluorescent lamp tube both ends are engaged on the dividing plate by bonding agent, is heat insulation for dividing plate between its both ends simultaneously.
Here so-called heat insulation is meant that the heat of fluorescent tube passes less than on the dividing plate, and comprise: fluorescent tube and dividing plate are separated, and every with heat-barrier material, fluorescent tube and dividing plate are with structures such as the adhesive of non-thermal conductivity engage between fluorescent tube and dividing plate.
According to the invention of claim 6, except that the two ends of fluorescent tube, hot partition has been made to dividing plate in other places, so the ratio that the heat of fluorescent tube passes on the dividing plate diminishes, and is difficult for passing on the ignition device by dividing plate.For this reason, can alleviate the thermal degradation when of ignition device.
The fluorescent light fittings of claim 7 invention as claim 5 or 6 described fluorescent light fittingss, is characterized in that, lamp tube ends portion in a circumferential direction a plurality of places respectively joins on the dividing plate with bonding agent.
Invention according to claim 7, the many places that each leisure of lamp tube ends portion is scattered on the circumferencial direction join on the dividing plate with bonding agent, therefore, compare with situation about engaging with a place, amount of binder is disperseed, thereby can avoid adhesive attachment on the tubule of lamp tube end, cause the situation of damage owing to expand with heat and contract with cold, simultaneously, be dispersed into severally owing to engage the place, bond strength improves.Again, compare with the situation of adhesive, can make the heat of lamp tube end be difficult for passing on the dividing plate,, therefore can prevent the deterioration of ignition device because these heats are difficult to pass on the ignition device by dividing plate with whole circumference portion.
Fig. 1 illustrates the oblique view of the flexible fluorescent lamp of the present invention the 1st embodiment.
Fig. 2 is the plane graph of this flexible fluorescent lamp.
Fig. 3 (A)～(c) is the process chart of the manufacture method of explanation flexible fluorescent lamp.
Fig. 4 illustrates the bending operation key diagram of Fig. 3 (B) of this flexible fluorescent lamp manufacture method.
The fluorescent tube workpiece figure of Fig. 5 for seeing from the arrow Y direction of Fig. 3 (B).
Chuck state diagram when Fig. 6 illustrates bending fluorescent tube workpiece central portion.
The plane graph of state when Fig. 7 is Bending Processing fluorescent tube workpiece central portion.
Fig. 8 illustrates the profile of fluorescent tube par.
The front elevation of chuck when Fig. 9 illustrates the foveal state of Bending Processing fluorescent tube workpiece.
Figure 10 is the plane graph that the fluorescent tube size relationship is shown.
The exploded perspective view of Figure 11 after for the omission bulb of the bulb type fluorescent lamp apparatus that adopts above-mentioned flexible fluorescent lamp.
Figure 12 is the profile of the bulb type fluorescent lamp apparatus of this flexible fluorescent lamp of employing.
The profile of Figure 13 for looking from other directions of this bulb type fluorescent lamp apparatus.
Figure 14 is the plane graph of the state of mounting circuit boards on the dividing plate of this bulb type fluorescent lamp apparatus.
Figure 15 illustrates the oblique view of the flexible fluorescent lamp of second embodiment of the invention.
Figure 16 is the plane graph of this flexible fluorescent lamp.
Among the figure, 1 is light cover, and 3 is lamp holder, and 4 is dividing plate, 6 is ignition device, and 7 is flexible fluorescent lamp, and 8 is bulb, and 45 is installing hole, 47,48 is bonding agent, and 60 is circuit board, and 61 is the high-frequency lighting circuit block, 70 is fluorescent tube, and 71 is hermetic terminal, and 72a～72c, 73a, 73b are bend, 75 is electrode, and 76 is outside lead, and 77a, 77b, 78a～78c are line part, 120,121,122 is U font glass tube, and 115 is tabular surface, and 131,132 is communicative engagement portion (bridge part).
Followingly the 1st embodiment of the present invention is described according to Fig. 1～Figure 14.
At first the Figure 1 and Figure 2 flexible fluorescent lamp is illustrated.This flexible fluorescent lamp 7, the both ends of fluorescent tube 70 are sealed ends 71,71, between the sealed end 71,71, form the 72a of curved pathway portion, 72b, 72c that the bend that slightly becomes the U font of the same direction bending in 3 places is formed, these U oxbows 72a of portion, 72b, 72c be disconnected from each other, be arranged side by side.On separately contrary direction between these bends 72a, 72b, the 72c, form and bend to the 73a of curved pathway portion, the 73b that slightly becomes the U font, thereby fluorescent tube 70 integral body have 5 bends.For this reason, fluorescent tube 70 has line part 77a, the 77b and the line part 78a～78d that is connected each U oxbow 72a of portion, 72b, 72c and 73a, 73b that connects above-mentioned sealed end 71,71.And, among these line parts 77a, 77b and the 78a～78d, connection is positioned near the U oxbow 73a of portion, the 73c of end side and with the U oxbow 73a of portion, the line part 78a and the 78d of 73b of their adjacency, reverse processing respectively.About 60 ° of the torsion angle of present embodiment almost applies on whole length for above-mentioned line part 78a and 78d and to reverse processing slowly.
The result, as shown in Figure 2, the sealed end 71,71 at two ends is located in the plan view and passes through on the diagonal O at center, and, on the above-mentioned a pair of U oxbow 73a of portion, another diagonal P that 73b is positioned to intersect with above-mentioned diagonal O, and diagonal O is configured in the left and right sides relatively.For this reason, each line part 77a, 77b and 78a～78d are positioned on the same circumference in plan view or on the hexagonal angle, as shown in Figure 2.
Residual on above-mentioned sealing 71,71 have the sealed knot of blast pipe to cut off point 74,74, and the electrode 75,75 of the hot cathode of portion's encapsulation within it type.Draw the outside lead 76 that is connected with above-mentioned electrode 75,75 from the end face of sealed end 71,71.
Cut off at least one side in the point 74,74 in above-mentioned sealing again, the amalgam (ア マ Le ガ system) of the mercury vapor pressure the when control of can packing into is lit a lamp.
The inner surface of fluorescent tube 70 is pre-formed not shown fluorophor tunicle, and encloses the rare gas of argon and so in fluorescent tube.
With reference to Fig. 3 to Figure 10, the manufacture method of above-mentioned flexible fluorescent lamp 7 is described below.
Fig. 3 (A) illustrates straight tube glass tube 101, and its inner surface has been pre-formed the fluorophor tunicle.This straight glass tube 101 is heated to the temperature of regulation, makes it softening, shown in Fig. 3 (B) both ends respectively bending machining become slightly to become 102,102 of S shape.The S shape bending machining portion at these two ends by coiling in profile roll 103a, 103b, forms bend 72a, 72c and 73a, 73b respectively.At this moment, a side profile roll 103a moves along the direction of Fig. 4 arrow A, in this moving process profile roll 103a is reversed.For this reason, line part 78a, 78d are imposed respectively reverse processing.Therefore, 3 line part 77a, 78a of above-mentioned S shape processing part 102,102 and central line part 104, and 77b, 78d and central line part 104 are not in the same plane respectively, these line parts 77a, 78a and central line part 104 and 77b, 78d and central line part 104 are in stereoscopic configurations, as shown in Figure 5.
Such workpiece is by curving the processing of U font with central line part 104 along bending former 105, can be shaped the crooked shape fluorescent tube that obtains shown in Fig. 3 (c).
Occasion at the bend 72c of the central line part of bending 104 processing central portions, end at two ends line part 77a, 77b close tubule separately, by chuck shown in Figure 6 110,110 clampings,, central line part 104 is coiled on the bending former 105 by moving these chucks 110,110.The state of above-mentioned fluorescent tube workpiece plate on finishing die 105 time is shown in Fig. 7.
If the central line part that will soften 104 closely contact then after the bending machining, on the medial surface of the bending of the 72c of central bend portion, forms tabular surface 115 as shown in Figure 8 in the enterprising line bend of this wedge surface 105a.
Form such tabular surface 115 on one's own initiative central portion bend 72c effectively is coiled in formation on the finishing die 105, therefore, generate the fluorescent tube of tabular surface 115, the curvature of the 72c of central bend portion diminishes, and realizes miniaturization thus.
Although form such tabular surface 115, because its position is towards the inboard of fluorescent tube, be difficult to from the outside find out, therefore do not influence outward appearance.
And then, after both ends form S shape processing part 102,102, when the bend 72c of the central line part 104 processing central portions of bending, with the two ends line part 77a of the close tubule of above-mentioned chuck 110,110 difference clampings, the end of 77b, though make these chucks 110,110 move and central portion can be coiled on the bending former 105.Yet during bending machining, worry to damage central portion bend 72c like this, increase width dimensions (illustrating with f among Fig. 9).In order to prevent this point, with width regulation equipment 116 the central portion bend is clamped preventing during bending machining and damaged by pressure, can control width dimensions f as shown in Figure 9.Thus, the width dimensions f of central portion change pars convoluta 72c can keep and the identical size of other parts of fluorescent tube.
And because two ends support that with chuck 110,110 the central bend 72c of portion clamps with width regulation device simultaneously, therefore, this status of support can be determined both ends and central portion totally 3 positions.
After the bending machining of central authorities finishes, unclamp chuck 110,110 respectively, the direction of arrow x is transferred to (among Fig. 7 towards the paper direction) from Fig. 9.At this moment, between line part 78a that bend 73a, 73b connect to two ends separately and the 78b and between 72c and the 78d, its projection size wishes it is the size c of bottom and d size a and the b greater than top, i.e. a=b, and c=d, a≤c (b≤d).
Its reason is, unclamps chuck 110,110 when arrow x direction shown in Figure 9 is deviate from, and the place ahead broad of chuck 110,110 moving directions is easy to.If the place ahead of the moving direction of chuck 110,110 is narrower, worry that chuck 110,110 can influence fluorescent tube.
Thereby, as with above-mentioned bend processing method, by 2 step process of the S shape manufacturing procedure at two ends with afterwards central portion bending operation, the fluorescent tube 70 of curved shape that can progressive forming complexity as shown in Figures 1 and 2.
For the flexible fluorescent lamp 7 of this structure, as seen from Figure 1, Figure 2, become the fluorescent tube of the compact form that forms 5 the U oxbow 72a of portion, 72b, 72c and 73a, 73b.
At this moment, reverse processing because line part 78a and 78d applied, therefore, as shown in Figure 2, the bend 72a and the 72c at two ends are close to central authorities, and whole the U oxbow 72a of portion, 72b, 72c and 73a, 73b focus on central portion, illuminating part compiles to high-density, and miniaturization becomes possibility.Line part 78a and 78d not being applied the occasion of reversing processing, shown in Fig. 2 dotted line, the bend 72a and the 72c at two ends leave central portion, and global shape broadens, can not densification.
And, can understand by Fig. 2, for bend 72a and 72c with two ends draw close to central portion, also can apply and reverse processing and realize other bends 73a and 73b.Yet, at this moment must apply bending machining and reverse processing bend 73a and 73b, it is difficult side by side carrying out these two kinds of processing.Thereby at this moment must reverse processing later on making bending machining, perhaps after reversing processing, carry out bending machining, but this two steps processing must post bake be softened fluorescent tube, therefore thermal strain and residual stress become big, Yi Yan change shape and breakage, and cause the thermal degradation when of the fluorophor tunicle that is formed at inner surface.
Relative therewith, the above embodiments occasion, owing to line part 78a and 78d applied reverse processing, therefore bend 73a and 73b are not reversed processing, the easy bending forming of bend 73a and 73b, simultaneously these bends are difficult for producing distortion and damaged, and line part 78a and 78d only do a thermoplastic and can reverse processing, so line part 78a and 78d can not produce distortion and damaged.
In addition, also can prevent to be formed at the thermal degradation when of the fluorophor tunicle of fluorescent tube 70 inner surfaces.
Particularly as adopting Fig. 3 to manufacture method shown in Figure 10, then by the S shape manufacturing procedure at the two ends shown in Fig. 3 (B) and two step process of the ensuing central portion bending operation shown in Fig. 3 (c), the fluorescent tube 70 of curved shape that can progressive forming complexity as depicted in figs. 1 and 2.Promptly, as with straight shape glass tube 101 thermoplastics, then can in its softening duration, carry out above-mentioned two step operations continuously, can guarantee does not thus have to form each U oxbow portion damagedly, simultaneously do not need to heat the fluorophor tunicle that is pre-formed on inner surface several times yet, can prevent the deterioration of fluorophor.
Below, the lamp bulb-shaped fluorescent lamp device of making light source with the flexible fluorescent lamp 7 of above-mentioned formation is described with reference to Figure 11 to 14.
The 1st, the light cover by the thermal endurance synthetic resin of PBT resin and so on is made forms cylindrical portion 2 on an end of this lid.The screw cap 3 of shape such as outsourcing E26 on this cylindrical portion 2, this lamp holder 3 is fixed on the cylindrical portion 2 by bonding agent or riveted joint mode.
The other end of above-mentioned lid 1 is in addition inaccessible with dividing plate 4.Dividing plate 4 is also formed by for example heat-resistant synthetic resin of PBT resin and so on, and that makes circular has a bottom utensil shape.Dividing plate 4 forms flange part 42 also as shown in figure 11 on the upper end open edge of the sidewall 41 of vertical, flange part 42 along the circumferential direction has interruption, for example forms 2 and imports notchs 43.
This relatively importing notch 43, the integrally formed locking protrusion (Department that imports notch 43 that can insert ends projection on the inner surface of above-mentioned lid 1) 11.Also promptly cover 1 when docking with dividing plate 4, locking protrusion 11 is by importing notch 43, if by after relatively rotate and cover 1 and dividing plate 4, locking protrusion 11 imports notch 43 position deviations relatively, locking protrusion 11 just blocks flange part 42, by the engaging of above-mentioned locking protrusion 11 and flange part 42, lid 1 is combined with dividing plate 4 thus.
In the position of spaced-apart 180 degree, just be positioned on the diagonal by the center on the aforementioned barriers 4, opening has fluorescent tube installing hole 45,45.According to following method with the above-mentioned fluorescent lamp 7 fluorescent tube installing hole 45,45 of packing into.
In the space that on aforementioned barriers 4, covers ignition device 6 has been installed by above-mentioned lid 1.Ignition device 6 is constituted by being contained in high-frequency lighting circuit block 61 on the printed circuit board 60, the employing transistor inverter.The parts 61 of high-frequency lighting circuit adopt for example known switching circuit, chokes type ballast, block capacitor and resonant inductor, the resonant capacitor etc. that are made of noise filter, full-wave rectifier, level and smooth electrolytic capacitor, transistor or thyristor, positive temperature coefficient thermis etc.
Therefore the size height of level and smooth electrolytic capacitor 61a uprightly is installed on the printed circuit board 60 and stretches in the cylindrical portion 2 of covering 1 upper end.In the present embodiment, as shown in figure 14, resonance bigger in the circuit block is configured on circuit substrate 60 center roughly with inductor 61b, and level and smooth electrolytic capacitor 61a is installed in its top, and its pin 61c walks around above-mentioned resonant inductance 61b agley and receives on the circuit substrate 60.Also promptly be formed at the above-mentioned big part resonant inductance 61b of space mounting of the below of electrolysis smmothing capacitor 61a.Like this, the mounting points circuit for lamp also can dwindle the space of covering in 1 compactly, can be with circuit board 60 near lid 1.Can do lamp device whole height littler thus.
Foregoing circuit plate 60 is put in the aforementioned barriers 4, is blocked with the fixed claw 44 on the flange part 42 that is formed at dividing plate 4 and ends.Promptly form separately towards the fixed claw 44 at center intermittently on the circumferencial direction of the flange part 42 of dividing plate 4, these fixed claws block the top fixing base 60 of the printed board 60 of ignition device 6.
Relative at mutual 180 degree on the foregoing circuit plate 60, form recessed edge portion 62,62 on promptly being positioned at by the diagonal at center.They are cut into circular arc formation polygonal to the ora terminalis of foregoing circuit plate 60 and form, and relative with the fluorescent tube installing hole 45,45 of aforementioned barriers 4.
At the nearby outstanding splicing ears 63 that are provided with of recessed edge portion 62,62.Splicing ear 63 is polygonal pin, also promptly is made up of angle clavate pin by section, outstanding being arranged on the circuit board 60, and be electrically connected in above-mentioned high-frequency lighting circuit block 61.
Above-mentioned fluorescent lamp 7 is installed in the bottom of aforementioned barriers 4.The sealed end 71,71 of fluorescent lamp 7 inserts the lamp installing hole 45,45 that aforementioned barriers 4 forms from dividing plate 4 times, with the heat-curable adhesive 47 of silicone and so on sealed end 71,71 is fixed on the dividing plate 4.At this moment, bonding agent 47 is dispersed on the circumferencial direction of sealed end 71 bonding, for example bonding 2 places.
Like this, when fluorescent lamp 7 is fixed on dividing plate 4, remain with the gap below two bend 73a, 73b of fluorescent lamp 7 and the dividing plate 4.Thus, the heat of bend 73a, 73b does not pass to dividing plate 4.Again, between bend 73a, 73b and dividing plate 4, can or be provided with the liner of thermal insulation, or adopt the thermal insulation bonding agent to engage.
By the fluorescent lamp 7 of said fixing on dividing plate 4, although can expose use, present embodiment is covered with bulb 8.Bulb 8 is made by the synthetic resin or the glass of transparent or light diffusing, and the upper end forms the cup-shaped of opening.Bulb 8 forms upper end open portion with minor diameter slightly, and has straight head 81.The head 81 of such bulb 8 shown in Figure 12 and 13, inserts in the annular gap of formation between the upstanding sidewall 41 cover 1 inner surface and dividing plate 4, is bonded on the upstanding sidewall 41 that covers 1 inner surface and dividing plate 4 with binding agent 82.
By the bulb type fluorescent lamp apparatus of this spline structure, the flexible fluorescent lamp 7 that uses as light source then is because compactness can realize the miniaturization of lamp single unit system.Because above-mentioned flexible fluorescent lamp 7 is highdensity, therefore can provide the lamp device of high brightness again.
And fluorescent lamp 7 its hermetic terminal 71,71 usefulness bonding agents 47 are fixed on the dividing plate 4, are separated below illuminating part between these sealed ends 71,71 and the dividing plate 4, and therefore, the heat that the fluorescent tube 70 when lighting a lamp is sent out is difficult for passing on the dividing plate 4.Thus, the temperature that has restricted dividing plate 4 rises, and restrains the printed circuit board 60 of installation in the lid and the temperature of dress ignition device 6 onboard and rises.For this reason, prevent the thermal degradation when of ignition device, make it long service life.
Join sealed end 71,71 on the dividing plate 4 bonding agent 47, divide to intersperse among on the circumferencial direction of sealed end 71,71, therefore, improved bond strength, also reduced heat conduction to dividing plate 4.
Promptly, as bonding agent 47 concentrated areas being filled in sealed end 71 place on every side, then the little lamp of fluorescent tube 70 diameters for example external diameter be the occasion of 15.5mm, for the bond strength that obtains to stipulate needs the bonding agent amount of necessity is focused on a place, therefore touch tubule 74 sometimes, can be because expanding with heat and contract with cold of bonding agent and fluorescent tube 70 damages tubule 74.In contrast, as bonding agent 47 is disperseed be arranged at sealing 71 around, then,, needn't worry to damage tubule etc. so can not contact tubule 7 owing to disperse the amount of bonding agent everywhere to reduce.
In addition, as bonding agent 47 is disperseed be arranged at sealed end 71 around, then these abutting edges disperse the loading of sealed ends 71 to make to be supported on the dividing plate 4, to improve the holding strength of machinery, reduce since partially the lotus amount cause bonding come off or impact, vibrate cause bonding come off, improved reliability.
Also considered bonding agent is filled on the whole circumference of sealed end 71, and improved adhesive strength more though do like this, if like this, then the heat of hermetic terminal 71 easily passes on the dividing plate 4, must worry to be loaded on the temperature of covering the ignition device in 1 by dividing plate 4 risings.Relative therewith, disperse to be arranged on the circumferencial direction of sealed end 71 as bonding agent, then the heat of sealed end 71 is difficult for passing on the dividing plate 4, thereby, be difficult to pass to be contained in cover on the 1 interior ignition device 6 by dividing plate 4.
And bonding agent 47 disperses to be arranged on the use amount that also can save bonding agent 47 on every side of sealed end 71.
The occasion of the bulb type fluorescent lamp apparatus of the foregoing description adopts the high-frequency lighting circuit as ignition device, but the invention is not restricted to this, and the general lamp circuit of the also available use for example ignition device of choking-winding ballast is implemented.
Below with reference to Figure 15 and Figure 16 the 2nd embodiment of the present invention is described.The flexible fluorescent lamp 7 of above-mentioned the 1st embodiment, a straight glass tube 101 is carried out bending and reverses processing, as depicted in figs. 1 and 2, constitute the fluorescent tube 70 of 5 72a of place U oxbow portion, 72b, 72c and 73a, 73b, yet in the 2nd embodiment, the end of 3 U font glass tubes 120,121,122 is engaged with each other forms the discharge space of a bending.Promptly, 3 U font glass tubes 120,121,122, make the side heat of end relative to each other softening and blow brokenly, blowing the tear butt joint, form communicative engagement portion (bridge part) 131,132, do the connection of machinery and make it mutual conduction by 131,132 pairs 3 U font glass tubes of these communicative engagement portions (bridge part) 120,121,122.
At this moment, by line part 78a, 78d being done the processing of reversing as shown in Figure 16, make lamp compactness and densification.Also can replace above-mentioned line part 78a, 78b to reverse processing with line part 78b, 78c.
As do, then needn't reverse processing to U-shaped bend 72a, 72b, 72c or communicative engagement portion (bridge joint connects) 131,132, therefore, these U-shaped bends 72a, 72b and 72c or communicative engagement portion (bridge part) 131,132 can be not damaged, and because needn't heating for multiple times, therefore can prevent to be formed at the thermal degradation when of the fluorophor tunicle on the inner surface.
In the various embodiments described above, the example that forms on the fluorescent tube totally 5 U-shaped bends or junction surface has been described, but the invention is not restricted to this, can understand by Fig. 2 and Figure 16, for a side bend is close to central portion, also can be only a side line part be reversed processing, thereby if any 3 above U-shaped bends or junction surface, perhaps the fluorescent tube by the two curved pathway portion that constitutes just can be suitable for.
According to above explanation, the invention of claim 1 is reversed processing owing to the line part to fluorescent tube applies, and can realize the small compactization of flexible fluorescent lamp with curved pathway portion near central authorities, can realize high brightnessization owing to make it densification.And this occasion, reverse the processing part and be formed on line part, it is possible therefore reversing processing as line part by thermoplastic processing, the shaping that can reduce curved pathway portion thus is bad or damaged, thereby can prevent the reduction of rate of finished products.And because the heating number of times of fluorescent tube is few, thereby can restrain the thermal degradation when of fluorophor tunicle.
Invention according to claim 2, connection is positioned at the curved pathway portion of outermost end and the line part of coupled another curved pathway portion reverses processing separately, the curved pathway portion that the curved pathway portion that therefore can will be positioned at outermost end shifts near center side disposes, and can make it miniaturization and densification.
Invention according to claim 3, two ends of fluorescent tube are positioned on the diagonal mutually, have at least among the simultaneously a plurality of curved pathway portion two be in become with above-mentioned diagonal crisscross on, in its both sides, therefore become compact and highdensity lamp with respect to this diagonal configuration.
Invention according to claim 4, because it is smooth shape that the face of the curved interior of the curved pathway portion of fluorescent tube central portion is made some, can be along making bending machining by the bending former of this tabular surface shape, the curvature of central portion curved pathway portion is done for a short time, can make it miniaturization.And owing to can make the bending forming model along above-mentioned tabular surface shape, delivery becomes easy after bending machining.Again,, but, be difficult for seeing from the outside owing to be positioned at the inboard of fluorescent tube even the face of curved interior is an even shape, harmless in outward appearance.
According to the invention of claim 5, can provide with the bulb type fluorescent lamp apparatus of not only small-sized but also highdensity lamp as light source.
According to the invention of claim 6, except that the two ends of fluorescent tube, hot partition has been made to dividing plate in other places, so the ratio that the heat of fluorescent tube passes on the dividing plate diminishes, and is difficult for passing on the ignition device by dividing plate.For this reason, can alleviate the thermal degradation when of ignition device.
Invention according to claim 7, several places that lamp tube ends portion disperses separately in a circumferential direction join on the dividing plate with bonding agent, therefore, compare with situation about engaging with a place, amount of binder is disperseed, thereby can avoid on the tubule of bonding agent attached to lamp tube ends, cause the situation of damage owing to expand with heat and contract with cold, simultaneously, because that joint is dispersed into is several, bond strength improves.Again, with whole circumference all the situation of useful adhesive compare, can make the heat of pipe end be difficult for passing on the dividing plate because these heats are difficult to pass on the ignition device by dividing plate, therefore can prevent the thermal degradation when of lamp point apparatus.
Claims (9)
1. a flexible fluorescent lamp is characterized in that, comprises:
Have more than 3 by bend or junction surface or by the two curved pathway portion that constitutes and a plurality of line parts of linking to each other with these curved pathway portions are arranged, form the fluorescent tube of a continuous discharge path as a whole;
Be arranged at the electroplax of above-mentioned lamp tube end;
Be formed at the fluorophor tunicle of above-mentioned the inner surface of tube;
Be formed in the line part between the above-mentioned a plurality of curved pathway portion and have one at least through reversing processing.
2. flexible fluorescent lamp as claimed in claim 1 is characterized in that, fluorescent tube has the curved pathway portion more than 5, connection is positioned at the curved pathway portion of outermost end one side and the line part of coupled other curved pathway portion is done distortion processing respectively.
3. flexible fluorescent lamp as claimed in claim 2 is characterized in that, lamp tube ends is positioned on the diagonal mutually, simultaneously, has at least 2 to be configured in and intersect direction and being positioned on above-mentioned cornerwise both sides of above-mentioned diagonal in a plurality of curved pathway portion.
4. flexible fluorescent lamp as claimed in claim 3 is characterized in that, it is smooth shape that the face of the curved interior of the curved pathway portion of fluorescent tube central portion is made a part.
5. flexible fluorescent lamp device is characterized in that possessing:
The one end is provided with the light cover of lamp holder;
Be loaded on the dividing plate of the other end of described light cover;
Pack into ignition device in the above-mentioned light cover that separates by described dividing plate;
The flexible fluorescent lamp as claimed in claim 1 that is loaded on the aforementioned barriers and is electrically connected with described ignition device.
6. fluorescent light fittings as claimed in claim 5 is characterized in that the fluorescent lamp tube both ends are engaged on the dividing plate by bonding agent, is heat insulation for dividing plate between these both ends simultaneously.
7. fluorescent light fittings as claimed in claim 6 is characterized in that, fluorescent lamp tube both ends in a circumferential direction a plurality of places respectively join on the dividing plate with bonding agent.
8. a fluorescent lamp manufacturing method is characterized in that, comprises the steps:
To in advance within it the surface straight glass tube that forms the fluorophor tunicle carry out thermoplastic operation;
The bending two ends of this straight glass tube is become S shape, and the line part of the center in 3 parts of the S shape processing part that constitutes both ends reverses the operation of reversing of processing;
The central line part of straight glass tube is bent to the operation of U font.
9. fluorescent lamp manufacture method as claimed in claim 8 is characterized in that, reverses operation and disposes the 1st, the 2nd straight line portion and the central line part that makes formation S shape processing part, two ends three-dimensionally, is not in the same plane separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96116769 CN1160925A (en) | 1996-03-28 | 1996-12-31 | Flexible fluorescent lamp, fluorescent lamp device and method for producing fluorescent lamp |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP74332/96 | 1996-03-28 | ||
| CN 96116769 CN1160925A (en) | 1996-03-28 | 1996-12-31 | Flexible fluorescent lamp, fluorescent lamp device and method for producing fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1160925A true CN1160925A (en) | 1997-10-01 |
Family
ID=5123756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96116769 Pending CN1160925A (en) | 1996-03-28 | 1996-12-31 | Flexible fluorescent lamp, fluorescent lamp device and method for producing fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1160925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406992C (en) * | 2004-09-23 | 2008-07-30 | 未来产业株式会社 | Apparatus for assembling substrates of planar fluorescent lamp |
-
1996
- 1996-12-31 CN CN 96116769 patent/CN1160925A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406992C (en) * | 2004-09-23 | 2008-07-30 | 未来产业株式会社 | Apparatus for assembling substrates of planar fluorescent lamp |
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