CN203605036U

CN203605036U - Led lamp tube

Info

Publication number: CN203605036U
Application number: CN201320709734.8U
Authority: CN
Inventors: 李化铮; 刘忠祺
Original assignee: Shenzhen Jiawei Photovoltaic Lighting Co Ltd
Current assignee: Jiawei Renewable Energy Co ltd
Priority date: 2013-11-12
Filing date: 2013-11-12
Publication date: 2014-05-21
Anticipated expiration: 2023-11-12

Abstract

The utility model discloses an LED lamp tube which is mainly provided with a glass tube, a printed circuit board arranged in the glass tube, a heat radiating adhesive arranged in the glass tube and put on the printed circuit board, multiple LED lamps arranged on the printed circuit board and two electrode sealing covers respectively linked up with two ends of the glass tube. Therefore, the heat radiating adhesive firstly absorb waste heat produced by the LED lamps in illumination and high temperature produced by the printed circuit board and is jointly in heat radiating connection with the peripheral wall of the glass tube in a heat conducting mode, meanwhile multiple heat radiating effects can be quickly achieved by adopting an additional heat radiating unit outsides the glass tube so as to reduce high temperature in the glass tube, the illumination efficiency can be improved, and the service life of the LED lamp tube can be also remarkably prolonged.

Description

LED fluorescent tube

Technical field

The utility model relates to a kind of design of fluorescent tube, refers in particular to a kind of LED fluorescent tube.

Background technology

Consult Fig. 1, existing LED illuminating lamp 1, include a body 11, one is located at the circuit substrate 12 in this body 11, one coats the heat radiation glue-line 13 on this circuit substrate 12, multiple LED lamps 14 (representing with sketch in figure) of being located on this circuit substrate 12, and two be connected respectively in the electrode enclosure 15 at these body 11 two ends; Wherein, this body 11 forms a hollow shape by perisporium 111 corrals, and the corresponding caulking groove 112 being embedded for this circuit substrate 12 that is formed with on this perisporium 111 so that in this body 11 by setting that should caulking groove 112 is formed with to one first accommodation space 113 and one second accommodation space 114; Separately, this circuit substrate 12 has an end face 121 being coated with for this heat radiation glue-line 13, and one is pivoted and produces the bottom surface 122 of electric connection for this LED lamp 14; Be with, the electric connection of supplying by this circuit substrate 12 when this LED lamp 14, radiate away to produce light source and to see through this body 11, the used heat that this LED lamp 14 produces simultaneously, and the high temperature producing on this circuit substrate 12 also can adsorb via this thermal paste 13.

Only, after actual use, find, in view of this circuit substrate 12 is coated in this body 11 with this LED lamp 14, therefore the waste hot gas producing when this LED lamp 14 irradiates, and the high temperature of this circuit substrate 12 generation in the time of power supply, all can cannot leave completely because being coated in this body 11, therefore it is inadequate only utilizing this heat radiation glue-line 13 of coating this end face 121 to dispel the heat, can allow so all the better these waste hot gas and high temperature all can directly or indirectly affect this circuit substrate 12, cause this circuit substrate 12 to have damage because of high temperature waste hot phenomenon, and then cause the damage of this LED lighting device 1, need in fact to improve.

In view of this, thus separately there is dealer to improve for thermolysis, as shown in Figure 2 and Figure 3, and another existing LED fluorescent tube improvement 2, it includes glass lamp 21, one heat dissipation metal pedestal 22, one LED chip circuit boards 23, and two electrode enclosures 24, wherein, this glass lamp 21 is the hollow circular cylinder of a tool heat conduction printing opacity, two ends are provided with opening simultaneously, inserted for this electrode enclosure 24, separately, this heat dissipation metal pedestal 22 is the strip of a crooked radian, and is provided with a positioning part 221 configuring for this LED chip circuit board 23 before this heat dissipation metal pedestal 22, and these heat dissipation metal pedestal 22 back sides are pasted on glass lamp 21 inwalls with a heat-conducting glue 25 simultaneously, when use, can make this heat dissipation metal pedestal 22 be to be close to this glass lamp 21 by this heat-conducting glue 25 is connected, so that can not lighting the front affixed attached effect of impact because of this LED chip circuit board 23, this heat dissipation metal pedestal 22 produces the sagging phenomenon coming off, and thermal energy conduction evenly can be left to whole these glass lamp 21 outsides, to maintain the service life of this LED fluorescent tube 2, only, the lid that has been subject to this electrode enclosure 24 in view of these glass lamp 21 two ends is established and is sealing state, and this heat dissipation metal pedestal 22 is metal material system, the effect that has heat build-up after the heat energy of metal material contact simultaneously exists, therefore adsorb after heat energy at this heat dissipation metal pedestal 22, it can make in this glass lamp 21 still in high temperature, if only will be by this heat-conducting glue 25 that sticks in these heat dissipation metal pedestal 22 back sides, the effect that its high temperature is conducted to these glass tube 21 outsides is limited, therefore this LED chip circuit board 23 that still can make to be located in this glass lamp 21 is subject to the impact of high temperature waste hot and produces impaired, and then reduce the life-span that this LED fluorescent tube 2 uses, still need to improve.

In view of this, the design people is for not attaining perfect caused many disappearances and inconvenience in the design of above-mentioned LED lamp tube structure, and deeply design, and active research improvement has a fling at and development and Design goes out this case.

Utility model content

The purpose of this utility model is to provide a kind of LED fluorescent tube, and it has multiple heat dissipation design, and the heat radiation that reaches a high temperature fast, to promote the illumination efficiency of this LED lamp, promotes the life-span that this LED fluorescent tube illumination is used greatly.

In order to reach above-mentioned purpose, solution of the present utility model is:

A kind of LED fluorescent tube, it includes a glass tube, and one is located at the printed circuit board (PCB) in this glass tube, and one is located at the thermal paste in this glass tube, multiple LED lamps of being located on this printed circuit board (PCB), and two be connected respectively in the electrode enclosure at these glass tube two ends, wherein, this printed circuit board (PCB) has an end face, and one be pivoted and produce the bottom surface of electric connection for this LED lamp, separately, this glass tube forms hollow shape by a perisporium corral, after being pivoted for this printed circuit board (PCB), in this glass tube, be formed with respectively first accommodation space corresponding with this end face, and second accommodation space corresponding with being located at this LED lamp on this bottom surface, this thermal paste is covered with in this first accommodation space and is placed on this end face so that just can be coated with, make whereby this printed circuit board (PCB), between this thermal paste and this perisporium three, form a heat conducting connection setting.

Separately be provided with one outward at above-mentioned glass tube and be corresponding heat-sink unit with this thermal paste.

Above-mentioned heat-sink unit is for having multiple radiating fin settings.

Above-mentioned heat-sink unit is one to have and conduct heat and the printed coating setting of containing metal coating.

Above-mentioned heat-sink unit is the pad pasting setting with metal ingredient.

The setting of above-mentioned heat-sink unit is inner and be combined with this end face of this printed circuit board (PCB) to this glass tube by this glass tube extension, and this thermal paste is still coated with and is covered with in this first accommodation space simultaneously.

Adopt after said structure, the utility model LED fluorescent tube utilizes thermal paste to be coated with to be covered with the design on the end face of the first accommodation space and this printed circuit board (PCB) (PCB), so that this thermal paste is able to the waste hot gas in this glass tube, this LED light irradiation being produced, and the high temperature that this printed circuit board (PCB) (PCB) when power supply produces adsorbs completely, and the perisporium that sees through this glass tube is outwards derived, coordinate this glass tube separately to there is the setting of this heat-sink unit outward simultaneously, so as to being configured to altogether the multiple heat dissipation design of a heat conducting connection, to slow down the high temperature in this glass tube, in order to do the profit heat radiation that reaches a high temperature fast, to promote the illumination efficiency of this LED lamp, greatly promote the life-span that this LED fluorescent tube illumination is used.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of existing 1LED illuminating lamp member;

Fig. 2 is the perspective exploded view of existing 2LED fluorescent tube;

Fig. 3 is existing 2 Local Members combination generalized section;

Fig. 4 is the perspective exploded view of the utility model the first preferred embodiment;

Fig. 5 is the Local Members combination generalized section of this preferred embodiment;

Fig. 6 is the generalized section of the utility model the second preferred embodiment;

Fig. 7 is the schematic diagram of the utility model the 3rd preferred embodiment.

Symbol description

1LED illuminating lamp 11 body 12 circuit substrates

13 heat radiation glue-line 14LED lamp 15 electrode enclosures

111 perisporium 112 caulking groove 113 first accommodation spaces

114 second accommodation space 121 end face 122 bottom surfaces

2LED fluorescent tube 21 glass lamp 22 heat dissipation metal pedestals

23LED chip circuit plate 24 electrode enclosure 25 heat-conducting glues

221 positioning parts

3 LED fluorescent tube 31 glass tube 32 printed circuit board (PCB)s (PCB)

33 thermal paste 34LED lamp 35 electrode enclosures

36 heat-sink unit 311 perisporium 312 first accommodation spaces

313 second accommodation space 321 end face 322 bottom surfaces.

The specific embodiment

In order further to explain the technical solution of the utility model, below by specific embodiment, the utility model is elaborated.

Before the utility model is described in detail, be noted that in the following description, similar assembly is to represent with identical numbering.

Consult Fig. 4, the first preferred embodiment of the present utility model, include a glass tube 31, one is located at the printed circuit board (PCB) (PCB) 32 in this glass tube 31, one is located at the thermal paste 33 in this glass tube 31, multiple LED lamps 34 of being located on this printed circuit board (PCB) (PCB) 32, and be connected respectively in the electrode enclosure 35 at these glass tube 31 two ends, wherein, this printed circuit board (PCB) (PCB) 32 is a flexible circuit board, and this printed circuit board (PCB) (PCB) 32 has an end face 321, and one be pivoted and produce the bottom surface 322 of electric connection for this LED lamp 34, separately, please refer to Fig. 5, this glass tube 31 forms hollow shape by perisporium 311 corrals, after being pivoted for this printed circuit board (PCB) (PCB) 32, make interior first accommodation space 312 corresponding with this end face 321 that be formed with respectively of this glass tube 31, and second accommodation space 313 corresponding with being located at this LED lamp 34 on this bottom surface 322, and this thermal paste 33 just can be coated with and is covered with in this first accommodation space 312 and is placed on this end face 321, make this printed circuit board (PCB) (PCB) 32 be and fit tightly shape because being coated with of this thermal paste 33 is covered with this glass tube 31 simultaneously, and multiple these LED lamps 34 of being located on this bottom surface 322 are able to see through this glass tube 31 via this second accommodation space 313 light source are penetrated, shown in the dotted line in figure.

Specifically, separately outside this glass tube 31, be provided with in the present embodiment one and be corresponding heat-sink unit 36 with this thermal paste 33, and aforementioned this heat-sink unit 36 is for having the setting of multiple radiating fins, also or as shown in Figure 6, this heat-sink unit 36 is one to have and conduct heat and the printed coating of containing metal coating, also or for thering is the pad pasting setting (representing with sketch in figure) of metal ingredient, and this printed coating is one containing just like graphite powder, aluminium powder, the heat-conductive coating of glass dust and heat radiation coating etc. is with printing, the modes such as spraying are coated with to be located at outside this glass tube, be located at outside this glass tube 31 just like the metal pad pasting of Aluminium film paste paper to contain as for this pad pasting, adsorbed and outwards shed so as to the hot gas that completely this thermal paste 33 is directed to these glass tube 31 places, so that this thermal paste 33, this perisporium 311 and this heat-sink unit 36 are the setting that a multiple heat dissipation connects whereby.

Consult Fig. 4, Fig. 5, after assembling, in view of this printed circuit board (PCB) (PCB) 32 is a soft materials, therefore can coordinate the shape of this glass tube 31 to be hubbed in this glass tube 31, completely be coated with and be covered with in this first accommodating 312 interior these thermal paste 33 of utilizing, in order to do making this printed circuit board (PCB) (PCB) 32 be able to be and fit tightly shape and be seamless shape with the perisporium 311 of this glass tube 31 simultaneously, therefore, in the time using, be energized on this printed circuit board (PCB) (PCB) 32 in this electrode enclosure 35 at these glass tube 31 two ends via cap seal, so as to this printed circuit board (PCB) (PCB) 32 is produced electrically, so that this LED lamp 34 sees through electric connection and then shinny, in the time that this LED lamp 34 is shinny, it can be in interior the produced waste thermal energy of this glass tube 31, when this printed circuit board (PCB) (PCB) 32 power supply simultaneously, also can produce high temperature, can be completely by this used heat high temperature adsorption by this thermal paste 33, and guide out after this perisporium 311 and given to outside Quick diffusing by this heat-sink unit 36 again, add simultaneously this thermal paste 33 respectively with this printed circuit board (PCB) (PCB) 32, this perisporium 311 threes are the heat conducting setting being directly connected, now more utilize setting up of this heat-sink unit 36 outside this glass tube 31, so that presenting, this LED fluorescent tube 3 there is multiple heat conduction setting, not only can make outside area of dissipation promotes greatly, also can slow down the high temperature in this glass tube 31 simultaneously, therefore more can reach best radiating effect, not only promote the illumination efficiency of this LED lamp 34, more can increase the life-span that these LED fluorescent tube 3 illuminations are used.

Consult Fig. 7, the of the present utility model the 3rd compared with embodiment, and it still comprises identical member described in last embodiment, the members such as glass tube 31, printed circuit board (PCB) (PCB) 32, thermal paste 33, LED lamp 34, two electrode enclosures 35 and heat-sink unit 36; Special one carry be, the setting of this heat-sink unit 36 in the present embodiment can be by these glass tube 31 extensions to this glass tube 31 and with this end face 321 combinations of this printed circuit board (PCB) (PCB) 32, this thermal paste 33 is still coated with and is covered with in this first accommodation space 312 simultaneously, so that these LED fluorescent tube 3 radiating effects are more remarkable; Be with, utilize this heat-sink unit 36 to extend in this glass tube 31 and with the design of this printed circuit board (PCB) (PCB) 32 combinations, outside not only the heat energy in this glass tube 31 can being accelerated outwards derive, more can make heat radiation function reach and double effect, make this printed circuit board (PCB) (PCB) 32 in this glass tube 31 effectively be maintained normal operating condition, greatly promote the life-span that these LED fluorescent tube 3 illuminations are used.

Conclude aforementioned, the utility model LED fluorescent tube is coated with the end face setting being covered with in the first accommodation space and the printed circuit board (PCB) (PCB) of glass tube by a thermal paste, so that this printed circuit board (PCB) (PCB) is able to be and fit tightly shape and be seamless shape with the perisporium of this glass tube, coordinate the setting of the heat-sink unit outside this glass tube more can be configured to altogether a heat conducting multiple heat dissipation connection setting simultaneously, reach more fast high temperature is dispelled the heat in order to do profit, to slow down the high temperature in this glass tube, not only can promote illumination efficiency, also can reach and significantly promote the life-span that this LED fluorescent tube illumination is used, therefore really can reach the purpose of this utility model.

Above-described embodiment and accompanying drawing non-limiting product form of the present utility model and style, suitable variation or modification that any person of an ordinary skill in the technical field does it, all should be considered as not departing from patent category of the present utility model.

Claims

1. a LED fluorescent tube, it is characterized in that: include a glass tube, one is located at the printed circuit board (PCB) in this glass tube, and one is located at the thermal paste in this glass tube, multiple LED lamps of being located on this printed circuit board (PCB), and two be connected respectively in the electrode enclosure at these glass tube two ends, wherein, this printed circuit board (PCB) has an end face, and one be pivoted and produce the bottom surface of electric connection for this LED lamp, separately, this glass tube forms hollow shape by a perisporium corral, after being pivoted for this printed circuit board (PCB), in this glass tube, be formed with respectively first accommodation space corresponding with this end face, and second accommodation space corresponding with being located at this LED lamp on this bottom surface, this thermal paste is covered with in this first accommodation space and is placed on this end face so that just can be coated with, make whereby this printed circuit board (PCB), between this thermal paste and this perisporium three, form a heat conducting connection setting.

2. LED fluorescent tube as claimed in claim 1, is characterized in that: be separately provided with one outward at this glass tube and be corresponding heat-sink unit with this thermal paste.

3. LED fluorescent tube as claimed in claim 2, is characterized in that: this heat-sink unit is for having multiple radiating fin settings.

4. LED fluorescent tube as claimed in claim 2, is characterized in that: this heat-sink unit is one to have and conduct heat and the printed coating setting of containing metal coating.

5. LED fluorescent tube as claimed in claim 2, is characterized in that: this heat-sink unit is the pad pasting setting with metal ingredient.

6. LED fluorescent tube as claimed in claim 3, is characterized in that: the setting of this heat-sink unit is inner and be combined with this end face of this printed circuit board (PCB) to this glass tube by this glass tube extension, and this thermal paste is still coated with and is covered with in this first accommodation space simultaneously.