CN101949505A - LED lamp of forced convection heat dissipation - Google Patents

LED lamp of forced convection heat dissipation Download PDF

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Publication number
CN101949505A
CN101949505A CN2010105129519A CN201010512951A CN101949505A CN 101949505 A CN101949505 A CN 101949505A CN 2010105129519 A CN2010105129519 A CN 2010105129519A CN 201010512951 A CN201010512951 A CN 201010512951A CN 101949505 A CN101949505 A CN 101949505A
Authority
CN
China
Prior art keywords
tube
fluorescent tube
wire barrel
led lamp
led
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.)
Pending
Application number
CN2010105129519A
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Chinese (zh)
Inventor
许严
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Senlong Mechanical & Electronic Co Ltd
Original Assignee
Jiangsu Senlong Mechanical & Electronic Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Senlong Mechanical & Electronic Co Ltd filed Critical Jiangsu Senlong Mechanical & Electronic Co Ltd
Priority to CN2010105129519A priority Critical patent/CN101949505A/en
Publication of CN101949505A publication Critical patent/CN101949505A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an illuminating device, in particular an LED lamp of forced convection heat dissipation, which comprises a lamp in the shape of a straight tube, wherein an LED lamp bead is arranged at the end part of the inner cavity of the lamp; the end part of the lamp is connected with a section of wiring tube, the front end of the wiring tube is connected with the lamp, and an extraction electrode is arranged at the back end of the wiring tube; and radiating fins which are connected with an installing substrate of the LED lamp bead are arranged at the front end of the inner cavity of the wiring tube, an axial fan is arranged at the middle part of the wiring tube, an air inlet grid is arranged on the tube wall at the back section of the wiring tube, and an air outlet grid is arranged on the tube wall of the periphery of the radiating fins at the back section of the wiring tube. The LED lamp of forced convection heat dissipation of the invention carries out forced heat dissipation with a power circuit board through the axial fan and the LED lamp bead and is provided with a temperature fuse to control on-off of the circuit, so that the lamp has the advantages of compact structure, good heat dissipation effect, low maintenance frequency, high safety factor and long overall service life.

Description

The LED fluorescent tube of forced convertion heat radiation
Technical field
The present invention relates to a kind of lighting device, the LED fluorescent tube of a kind of forced convertion heat radiation of more specifically saying so.
Background technology
Present LED lighting has advantages such as power consumption is little, brightness is high, cold light source, is the lighting system with good development prospect.But existing household LED illuminating lamp all is to adopt passive radiating mode, uses low power LED lamp pearl, and quantity is just many, and it is big that volume becomes, and production cost is high.Use the high-power LED lamp pearl, caloric value is big, because the volume of fin is bigger, thereby also make the volume of light fixture increase the inconvenience of bringing light fixture to use, in use fin surrounding air is mobile not good owing to have light fixture now simultaneously, cause radiating effect poor, and LED is a kind of electronic devices and components, too high operating temperature has directly shortened the service life of LED.Reason excessive because of fin and that service life is short also makes illumination cost high, is unfavorable for popularizing of LED lighting.
Summary of the invention
Technical problem to be solved by this invention provides the LED fluorescent tube of a kind of not only perfect heat-dissipating, long service life but also the forced convertion heat radiation that volume is little, production cost is low.
For the LED fluorescent tube that solves the problems of the technologies described above forced convertion of the present invention heat radiation includes the fluorescent tube of straight tube-like, be provided with LED lamp pearl in fluorescent tube inner chamber end; The end of fluorescent tube is connected with one section wire barrel, and the wire barrel front end connects fluorescent tube, and the wire barrel rear end is provided with extraction electrode; Wire barrel inner chamber front end is provided with the fin that is connected with LED lamp pearl installation base plate, is provided with aerofoil fan at wire barrel middle part, and the tube wall of wire barrel back segment is provided with air-inlet grille, has the grid of giving vent to anger on the tube wall of the fin periphery of wire barrel back segment.
Be provided with power supply circuit board in the wire barrel inner chamber between aerofoil fan and air-inlet grille; The edge of described power supply circuit board and a pair of slot socket connection that is positioned at wire barrel tube wall inboard.
Be connected with Thermal Cutoffs in the electric power loop of described LED lamp pearl.
Include FET on the described power supply circuit board, the FET fin is installed on the FET.
The a plurality of long and narrow sheet metal that described fin is arranged by matrix is formed, and makes air-flow to pass through from the gap between the aluminium flake, to take away heat.
The LED fluorescent tube of forced convertion heat radiation of the present invention carries out forced heat radiation by aerofoil fan to LED lamp pearl and power supply circuit board, and the structure of outfit Thermal Cutoffs control circuit break-make, make its advantage, make that the fluorescent tube frequency of maintenance is low, safety coefficient is high, whole service life is long with compact conformation, good heat dissipation effect.The simple radiating structure makes LED fluorescent tube style of the present invention, size approach general T type fluorescent tube simultaneously, can directly replace with general T type fluorescent tube, remove the parts such as ballast in the primary circuit, directly be connected and use, thereby LED fluorescent tube of the present invention has broad prospect for its application with alternating current.
Description of drawings
Fig. 1 is the structure chart of an end of the embodiment of the invention;
Fig. 2 is the cross section structure schematic diagram of the wire barrel of the embodiment of the invention at the power supply circuit board position;
Fig. 3 is the cross section structure schematic diagram of the wire barrel of the embodiment of the invention at the fin position.
The specific embodiment
Be described in further details below in conjunction with the LED fluorescent tube of the drawings and specific embodiments forced convertion heat radiation of the present invention.
As shown in the figure, the LED fluorescent tube of forced convertion heat radiation of the present invention includes the fluorescent tube 1 of straight tube-like, is provided with LED lamp pearl 2 in fluorescent tube inner chamber end; The end of fluorescent tube is connected with one section wire barrel 3, and the wire barrel front end connects fluorescent tube, and the wire barrel rear end is provided with extraction electrode 4; Wire barrel inner chamber front end is provided with the fin 5 that is connected with LED lamp pearl installation base plate, be provided with aerofoil fan 6 at wire barrel 3 middle parts, the tube wall of wire barrel back segment is provided with air-inlet grille 7, has the grid 8 of giving vent to anger on the tube wall of fin 5 peripheries of wire barrel back segment.Be provided with power supply circuit board 9 in the wire barrel inner chamber between aerofoil fan 6 and air-inlet grille 7, the edge of power supply circuit board 9 and a pair of slot 10 socket connections (as Fig. 2) that are positioned at wire barrel tube wall inboard.Be connected with Thermal Cutoffs 11 in the electric power loop of LED lamp pearl.Include FET 12 on the power supply circuit board 9, FET fin 13 is installed on the FET.As shown in Figure 3, a plurality of long and narrow aluminium flake that fin 5 is arranged by matrix is formed, and makes air-flow to pass through from the gap between the aluminium flake, to take away heat.
In the embodiment of the invention, the diameter of fluorescent tube is φ 3-5cm, and the voltage 6V of fan electromotor, power are 0.5-2W.Power supply circuit board comprises two parts, and a part is common LED illumination driving power, has constant current control, and another part is simple transformer, uses for drive fan.Because constant current control need be used the original paper of similar golf calorific value such as FET mostly, and electric capacity at high temperature the life-span be not very long, so, installing a FET fin on the FET additional.
When using the LED fluorescent tube to throw light on, aerofoil fan drives air and enters from air-inlet grille, through power supply, fan, takes away the heat that power supply and machine operation produce, and passes through the matrix fin again, takes away the heat of LED lamp pearl and is discharged by the grid of giving vent to anger.
When fan damages, or the reason of some improper use, wait other factors to cause radiating efficiency to descend, LED lamp pearl substrate temperature rises, when reaching 95 or 105 when spending, (depending on the specification that Thermal Cutoffs is selected for use) Thermal Cutoffs automatic disconnection, led circuit disconnects, and this moment, the LED fluorescent tube did not work, and main heat generating components quits work, temperature descends, and reminding user to replace.
The technical performance index of the LED pipe finished product of forced convertion heat radiation of the present invention is as follows:
(1) condition of work: when 30 ° of room temperatures, behind the steady operation, each part temperatures is below 60 ℃;
(2) power of fan accounts for the general power of light fixture below 20%;
(3) one ten thousand hours fault-free.

Claims (6)

1. the LED fluorescent tube of forced convertion heat radiation, include the fluorescent tube (1) of straight tube-like, be provided with LED lamp pearl (2) in fluorescent tube inner chamber end, it is characterized in that: the end of fluorescent tube is connected with one section wire barrel (3), the wire barrel front end connects fluorescent tube, and the wire barrel rear end is provided with extraction electrode (4); Wire barrel inner chamber front end is provided with the fin (5) that is connected with LED lamp pearl installation base plate, be provided with aerofoil fan (6) at wire barrel (3) middle part, the tube wall of wire barrel back segment is provided with air-inlet grille (7), has the grid of giving vent to anger (8) on the peripheral tube wall of the fin (5) of wire barrel back segment.
2. the LED fluorescent tube of forced convertion heat radiation according to claim 1 is characterized in that: be provided with power supply circuit board (9) in the wire barrel inner chamber between aerofoil fan (6) and air-inlet grille (7).
3. the LED fluorescent tube of forced convertion heat radiation according to claim 2 is characterized in that: the edge of power supply circuit board (9) and a pair of slot (10) socket connection that is positioned at wire barrel tube wall inboard.
4. according to the LED fluorescent tube of the described forced convertion heat radiation of one of claim 1-3, it is characterized in that: be connected with Thermal Cutoffs (11) in the electric power loop of LED lamp pearl.
5. according to the LED fluorescent tube of the described forced convertion heat radiation of one of claim 1-3, it is characterized in that: include FET (12) on the power supply circuit board (9), FET fin (13) is installed on the FET.
6. according to the LED fluorescent tube of the described forced convertion heat radiation of one of claim 1-3, it is characterized in that: a plurality of long and narrow sheet metal that fin (5) is arranged by matrix is formed.
CN2010105129519A 2010-10-20 2010-10-20 LED lamp of forced convection heat dissipation Pending CN101949505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105129519A CN101949505A (en) 2010-10-20 2010-10-20 LED lamp of forced convection heat dissipation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105129519A CN101949505A (en) 2010-10-20 2010-10-20 LED lamp of forced convection heat dissipation

Publications (1)

Publication Number Publication Date
CN101949505A true CN101949505A (en) 2011-01-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010105129519A Pending CN101949505A (en) 2010-10-20 2010-10-20 LED lamp of forced convection heat dissipation

Country Status (1)

Country Link
CN (1) CN101949505A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105371120A (en) * 2015-11-26 2016-03-02 佛山市南海区联合广东新光源产业创新中心 LED lamp capable of dissipating heat efficiently
CN109641471A (en) * 2016-09-06 2019-04-16 惠普发展公司,有限责任合伙企业 Contracurrent system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201232877Y (en) * 2008-05-08 2009-05-06 朱恩灿 LED lamp tube
US20090195159A1 (en) * 2008-02-03 2009-08-06 Smith Jerry L Led cooling system
CN101684896A (en) * 2008-09-25 2010-03-31 佛山市建准电子有限公司 Lamp with automatic dedusting function
JP2010153198A (en) * 2008-12-25 2010-07-08 Nec Lighting Ltd Luminaire
CN201550327U (en) * 2009-10-31 2010-08-11 鹤山丽得电子实业有限公司 Driving circuit of LED fluorescent tube
CN201844255U (en) * 2010-10-20 2011-05-25 江苏森隆机电有限公司 LED lamp tube with effect of forced convection heat dissipation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090195159A1 (en) * 2008-02-03 2009-08-06 Smith Jerry L Led cooling system
CN201232877Y (en) * 2008-05-08 2009-05-06 朱恩灿 LED lamp tube
CN101684896A (en) * 2008-09-25 2010-03-31 佛山市建准电子有限公司 Lamp with automatic dedusting function
JP2010153198A (en) * 2008-12-25 2010-07-08 Nec Lighting Ltd Luminaire
CN201550327U (en) * 2009-10-31 2010-08-11 鹤山丽得电子实业有限公司 Driving circuit of LED fluorescent tube
CN201844255U (en) * 2010-10-20 2011-05-25 江苏森隆机电有限公司 LED lamp tube with effect of forced convection heat dissipation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105371120A (en) * 2015-11-26 2016-03-02 佛山市南海区联合广东新光源产业创新中心 LED lamp capable of dissipating heat efficiently
CN105371120B (en) * 2015-11-26 2018-11-23 佛山市南海区联合广东新光源产业创新中心 A kind of efficiency heat-radiating LED lamp
CN109641471A (en) * 2016-09-06 2019-04-16 惠普发展公司,有限责任合伙企业 Contracurrent system
US10926468B2 (en) 2016-09-06 2021-02-23 Hewlett-Packard Development Company, L.P. Convection system

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Open date: 20110119