CN205690169U - A kind of LED lamp bar and fluorescent tube - Google Patents

Abstract

The utility model discloses a kind of LED lamp bar and fluorescent tube.LED lamp bar includes substrate；Being provided with pad on substrate, be packaged with flip-chip on pad, pad appearance profile surpasses flip-chip, is packaged with fluorescent glue on flip-chip, and fluorescent glue covers pad.Fluorescent tube includes body and is located at the union joint at body two ends, is provided with above-mentioned LED lamp bar on the sidewall of body.Structure of the present utility model, preferably prevents pad the phenomenon such as oxidation, sulfuration, halogenation occur, allow simultaneously encapsulation technique more simply, allow LED lamp bar encapsulation more reliably, allow the fluorescent tube can 360 degree of luminescences of convergence.

Description

A kind of LED lamp bar and fluorescent tube

Technical field

This utility model relates to LED lamp bar and is provided with the fluorescent tube of LED lamp bar.

Background technology

Existing LED lamp tube mainly includes body, the union joint being located at body two ends and the LED lamp bar being located in body, Described body includes body and the lampshade being located on body, and LED lamp bar is fixed on body, the LED lamp bar one of this fluorescent tube As be positioned at the middle part of fluorescent tube, therefore, fluorescent tube typically only has one side of something to go out light.

Current LED lamp bar mainly includes substrate, be located on substrate positive cartridge chip and the fluorescent material being encapsulated on chip, This LED lamp bar, owing to using positive cartridge chip, it is therefore desirable to beat gold thread, pad is relatively big, so, for fixing the pad of gold thread Having part to be positioned at outside fluorescent glue, long-time rear pad is oxidized easily, vulcanizes；In addition, it is necessary to beat the then many one procedure of gold thread, Therefore, the technique of encapsulation is relatively complicated.Meanwhile, LED lamp bar, in processing, transport, installation process, there will be elastic curved unavoidably Bent phenomenon, and when substrate bends, easily affect the reliability that substrate is connected with chip.

Summary of the invention

In order to preferably prevent pad from the phenomenons such as oxidation, sulfuration, halogenation occurring, allow the technique encapsulated the simplest simultaneously Single, allow chip be connected with substrate more reliable, in order to make flip-chip more reliable with the electrical connection properties of substrate, can be preferably Protection flip-chip, this utility model provides a kind of LED lamp bar.

In order to preferably prevent pad from the phenomenons such as oxidation, sulfuration, halogenation occurring, allow the technique encapsulated the simplest simultaneously Single, allow chip be connected with substrate more reliable, in order to make flip-chip more reliable with the electrical connection properties of substrate, can be preferably Protection flip-chip, allow fluorescent tube can 360 degree of luminescences of convergence, this utility model provides a kind of fluorescent tube.

For reaching above-mentioned first purpose, a kind of LED lamp bar, including substrate；Substrate is provided with pad, pad encapsulates Having flip-chip, be packaged with fluorescent glue on flip-chip, fluorescent glue covers pad, and flip-chip is rectangle, upside-down mounting core The long limit of sheet is parallel with the broadside of substrate.

Said structure, owing to using flip-chip, therefore, need not when fixing flip-chip beat gold thread, then requirement Bonding pad area little, after chip package is good, pad can be covered all, can effectively prevent pad occur oxidation, sulfuration, The phenomenon of halogenation.Owing to eliminating the operation beating gold thread, therefore, the packaging technology of LED lamp bar is more simple, LED simultaneously Bar, in processing, transport, installation process, there will be the phenomenon of elastic bending unavoidably, uses above-mentioned encapsulating structure, same upside-down mounting core Sheet can reduce at the angle of bend of substrate bending direction, though the phenomenon of the flexible bending of substrate, flip-chip be also not easy with Substrate separates so that the electrical connection properties of flip-chip and substrate is more reliable, be also not easy to occur simultaneously flip-chip because of There is the phenomenon of fragmentation in substrate bending.

Further, the length of substrate is more than 0.5m and less than 4m, and the width of substrate is 4-10mm.The body of general fluorescent tube For circle, use the substrate that width is relatively small, it is easier to allow LED lamp bar near the medial wall of body, it is thus possible to allow fluorescent tube become Nearly 360 degree of luminescences.

Further, pad appearance profile exceeds flip-chip, so can be easy to improve what flip-chip was connected with pad Reliability.

Further, described substrate is aluminium base, it is simple to heat radiation.

For reaching above-mentioned second purpose, a kind of fluorescent tube, including body and the union joint being located at body two ends, in the side of body Being provided with LED lamp bar on wall, LED lamp bar includes substrate；Substrate is provided with pad, pad is packaged with flip-chip, Being packaged with fluorescent glue on chip, fluorescent glue covers pad, and flip-chip is rectangle, the long limit of flip-chip and the width of substrate Limit is parallel.

Above-mentioned lamp tube structure, owing to LED lamp bar is to be located at the medial wall of body, so, almost can allow fluorescent tube whole directly Footpath is luminous, i.e. allows the 360 degree of luminescences of fluorescent tube convergence, expands the range of exposures of fluorescent tube.Owing to using flip-chip, therefore, solid Determine to need not during flip-chip beat gold thread, then the bonding pad area of requirement is little, after chip package is good, can be completely covered by pad Live, can effectively prevent pad from oxidation, the phenomenon of sulfuration occurring.Owing to eliminating the operation beating gold thread, therefore, LED lamp bar Packaging technology is more simple, and LED lamp bar is in processing, transport, installation process simultaneously, there will be showing of elastic bending unavoidably As, using above-mentioned encapsulating structure, same flip-chip can reduce at the angle of bend of substrate bending direction, even if substrate is flexible The phenomenon of bending, flip-chip is also not easy to separate with substrate so that the electrical connection properties of flip-chip and substrate more may be used Lean on, be also not easy occur that flip-chip the phenomenon of fragmentation occurs because of substrate bending simultaneously.

Further, the length of substrate is more than 0.5m and less than 4m, and the width of substrate is 4-10mm.The body of general fluorescent tube For circle, use the substrate that width is relatively small, it is easier to allow LED lamp bar near the medial wall of body, it is thus possible to allow fluorescent tube become Nearly 360 degree of luminescences.

Further, pad appearance profile exceeds flip-chip, so can be easy to improve what flip-chip was connected with pad Reliability.

Further, described substrate is aluminium base, it is simple to heat radiation.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of LED lamp bar.

Fig. 2 is the top view of LED lamp bar.

Fig. 3 is the enlarged drawing of A in Fig. 1.

Fig. 4 is the schematic diagram of fluorescent tube.

Detailed description of the invention

With detailed description of the invention, this utility model is further elaborated below in conjunction with the accompanying drawings.

Embodiment 1.

As shown in Figure 1 to Figure 3, LED lamp bar 100 includes substrate 1；It is provided with pad 11 on substrate 1, pad 11 encapsulates Having flip-chip 2, pad 11 appearance profile exceeds flip-chip appearance profile, is packaged with fluorescent glue 3 on flip-chip 2, glimmering Optical cement 3 covers pad 11.Substrate 1 is aluminium base, and the length of substrate 1 is more than 0.5m and less than 4m, and the width of substrate 1 is 4- 10mm, preferably 5mm.As in figure 2 it is shown, flip-chip 2 is rectangle, the long limit a of flip-chip 2 is parallel with the broadside b of substrate, when So can also there is the angle of 1-10 degree.

The LED lamp bar of present embodiment, owing to using flip-chip 2, therefore, need not when fixing flip-chip 2 beat Gold thread, then pad 11 area of requirement is little, after fluorescent glue 3 is packaged, flip-chip and fluorescent glue can be by complete for pad 11 Cover, can effectively prevent pad 11 from oxidation, sulfuration, the phenomenon of halogenation occurring.Owing to eliminating the operation beating gold thread, because of This, the packaging technology of LED lamp bar is more simple, and LED lamp bar 100 is in processing, transport, installation process simultaneously, can go out unavoidably The phenomenon of existing elastic bending, uses the long set-up mode parallel with the broadside b of substrate for limit a of flip-chip 2, same flip-chip Angle of bend at substrate 1 bending direction can reduce, though the phenomenon of the flexible bending of substrate 1, flip-chip 2 be also not easy with Substrate 1 separates so that flip-chip 2 is more reliable with the electrical connection properties of substrate 1, is also not easy flip-chip occur simultaneously 2 there is the phenomenon of fragmentation because of substrate 1 bending.

Embodiment 2.

As shown in Figure 4, fluorescent tube includes body 4 and is located at the union joint at body 4 two ends, installs on the medial wall of body 4 There is LED lamp bar 100.

As shown in Figure 1 to Figure 3, LED lamp bar 100 includes substrate 1；It is provided with pad 11 on substrate 1, pad 11 encapsulates Having flip-chip 2, pad 11 appearance profile exceeds flip-chip appearance profile, is packaged with fluorescent glue 3 on flip-chip 2, glimmering Optical cement 3 covers pad 11.Substrate 1 is aluminium base, and the length of substrate 1 is more than 0.5m and less than 4m, and the width of substrate 1 is 4- 10mm, preferably 5mm.As in figure 2 it is shown, flip-chip 2 is rectangle, the long limit a of flip-chip 2 is parallel with the broadside b of substrate, when So can also there is the angle of 1-10 degree.

As shown in Figure 4, owing to LED lamp bar 100 is to be located at the medial wall of body, especially with present embodiment width Substrate 1, so, almost can allow the whole diameter of fluorescent tube luminous, i.e. allows the 360 degree of luminescences of fluorescent tube convergence, expands the irradiation of fluorescent tube Scope.The LED lamp bar of present embodiment, owing to using flip-chip 2, therefore, need not when fixing flip-chip 2 beat gold Line, then pad 11 area of requirement is little, after fluorescent glue 3 is packaged, pad 11 can be covered by flip-chip and fluorescent glue completely Cover, can effectively prevent pad 11 from oxidation, sulfuration, the phenomenon of halogenation occurring.Owing to eliminating the operation beating gold thread, therefore, The packaging technology of LED lamp bar is more simple, and LED lamp bar 100 is in processing, transport, installation process simultaneously, there will be bullet unavoidably Property bending phenomenon, use flip-chip 2 long set-up mode parallel with the broadside b of substrate for limit a, same flip-chip is at base The angle of bend of plate 1 bending direction can reduce, even if the phenomenon of the flexible bending of substrate 1, flip-chip 2 is also not easy and substrate 1 separates so that flip-chip 2 is more reliable with the electrical connection properties of substrate 1, be also not easy to occur simultaneously flip-chip 2 because of There is the phenomenon of fragmentation in substrate 1 bending.

Claims (8)

1. a LED lamp bar, including substrate；It is characterized in that: on substrate, be provided with pad, pad is packaged with upside-down mounting core Sheet, is packaged with fluorescent glue on flip-chip, and fluorescent glue covers pad, and flip-chip is rectangle, the long limit of flip-chip Parallel with the broadside of substrate.

LED lamp bar the most according to claim 1, it is characterised in that: the length of substrate is more than 0.5m and is less than 4m, substrate Width is 4-10mm.

LED lamp bar the most according to claim 1, it is characterised in that: pad appearance profile exceeds flip-chip.

LED lamp bar the most according to claim 1, it is characterised in that: described substrate is aluminium base.

5. a fluorescent tube, including body and the union joint being located at body two ends, it is characterised in that: it is provided with on the sidewall of body LED lamp bar, LED lamp bar includes substrate；Substrate is provided with pad, pad is packaged with flip-chip, on flip-chip Being packaged with fluorescent glue, fluorescent glue covers pad, and flip-chip is rectangle, and the long limit of flip-chip is put down with the broadside of substrate OK.

Fluorescent tube the most according to claim 5, it is characterised in that: the length of substrate is more than 0.5m and less than 4m, the width of substrate Degree is 4-10mm.

Fluorescent tube the most according to claim 5, it is characterised in that: pad appearance profile exceeds flip-chip.

Fluorescent tube the most according to claim 5, it is characterised in that: described substrate is aluminium base.