CN201083339Y

CN201083339Y - LED fluorescent tube

Info

Publication number: CN201083339Y
Application number: CNU2007200335636U
Authority: CN
Inventors: 陆炜
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-10
Filing date: 2007-01-10
Publication date: 2008-07-09
Anticipated expiration: 2017-01-10

Abstract

The utility model discloses an LED fluorescent tube, which comprises a shell, a plurality of LED chips arranged in the shell and connecting joints covered on both ends of the shell, wherein, the LED chips are electrically connected with connectors on the connecting joints. The utility model is characterized in that: the shell is bar-shaped and consists of an LED mounting base and a light transmission shell, the LED mounting base is provided with a support, the LED chips are arranged on the support, the support is part of a cooling structure, the inner surface of the LED mounting base is provided with a reflective layer. The utility model realizes the fluorescent tube formed by taking advantage of LED chips, achieves the intention of saving power and environmental protection, and greatly prolongs the service life of the fluorescent tube at the same time.

Description

The LED fluorescent tube

Technical field

The utility model relates to a kind of fluorescent tube, is specifically related to a kind of LED fluorescent tube.

Background technology

Common fluorescent lamp is to send ultraviolet ray by the gas between the filament (argon and mercuryvapour) conduction, make the fluorescent material that is applied on the tube inner wall send soft visible light, power is at 30～60W, its work characteristics: need a high voltage starter when fluorescent tube begins to light, normally only need little electric current when luminous, operating voltage is lower than supply voltage.Lighting mode and work characteristics according to common fluorescent lamp can be found, it has following defective: 1. contain heavy metal substances such as mercury, fluorescent material in the fluorescent tube, also can't reclaim at present after discarded, the heavy metal substance that releases after the explosion can cause the pollution of environment and the injury of human body, thereby does not meet present environmental requirement; 2. fluorescent lamp is luminous stablizes, follows the network operation frequency inadequately and can produce flicker, and people's eyes are had injury; 3. big electric current starter is difficult to when voltage is on the low side light; 4. because operate as normal only needs little electric current, and operating voltage is significantly less than supply voltage, adopt ballast structure power factor (PF) low, power consumption is big, causes the waste of the energy.

The LED light emitting diode is a kind ofly to utilize the minority carrier of injection and majority carrier is compound that the form of excess energy with light discharged, electric energy is directly changed into the diode of luminous energy, low (characteristics such as 6V～24V), little power consumption, long service life obtain liking of numerous users with its operating voltage, extensively be applied to the place that to light for a long time, use as indicator lamp as electric equipment products.LED develops to high brightness, high-power direction at present, is used to occasions such as navigation channel indicator lamp, signal lamp.And in the general lighting field, at present a large amount of adopt remain fluorescent lamp, make LED can substitute fluorescent lamp, in brightness, need plurality of LEDs is combined, utilize the stack of brightness, reach the brightness identical, so just bring another problem with fluorescent lamp, because single LED volume very little (less than 5 millimeters), every LEDs can generate heat in luminous, high-power LED particularly, and it is more obvious to generate heat, the LED heat radiation that flocks together has just become maximum problem, dispelling the heat badly is easy to make LED to burn out, thereby the existence of this a pair of contradiction, makes the Arrested Development of LED lamp to illuminating lamp.

Summary of the invention

The utility model purpose provides that a kind of power saving, thermal diffusivity are good, the LED fluorescent tube of long service life.

For achieving the above object, the technical solution adopted in the utility model is: a kind of LED fluorescent tube, comprise housing, be arranged at a plurality of led chips in the housing and the connector that is sheathed on the housing two ends, each described led chip is electrically connected with connector on the connector, described housing is long strip type, form by LED mounting seat and light transmission casing, described LED mounting seat is provided with support, described led chip is installed on the support, prop up a part that is configured to radiator structure, the inner surface of described LED mounting seat is provided with the reflecting layer.

In the technique scheme, described led chip can be fixed on the support by heat-conducting glue or screw, also can adopt and earlier each led chip is welded on the substrate, constitute LED lamp bar, again lamp bar integral body is fixed on the support by heat-conducting glue or screw, each led chip draw the joint serial or parallel connection on the electrical connector of described connector, during use, connector is plugged in the lamp socket of common fluorescent tube, connector is in LED driving power (rectification circuit) incoming transport supply voltage (220V); The structure of connector can cooperate with the lamp socket of existing fluorescent tube, also can cooperate with special lamp holder, plays the effect of supporting whole fluorescent tube on the one hand, on the other hand, is connected with power supply by electrical connector; Described reflecting layer can be adopted and be electroplated or paste the film formation with reflecting effect, with led chip to around the light dispersed reflect, form the light of concentrating emission downwards, thereby improve the brightness of LED lamp, to reach the irradiation brightness of common fluorescent lamp, also can improve the utilization rate of light source simultaneously; Described light transmission casing adopts light transmissive material such as PVC or plastics etc. to make, and the light that allows LED to send passes through, and can utilize the color that changes light transmission casing to change the color of light simultaneously, satisfies user's needs.

In the technique scheme, described support cross-over connection is in 1/3～4/5 place, base to top of base.

In the technique scheme, described housing is cylindrical, is made of semi-cylindrical LED mounting seat and light transmission casing amalgamation, and connects by the connector that is sheathed on the housing two ends, described support cross-over connection is in semicircular arc LED mounting seat, and support constitutes radiator structure with mounting seat.

Further technical scheme, the junction of described LED mounting seat and light transmission casing is provided with draw-in groove, and the edge card of described light transmission casing is located in the described draw-in groove.

Preferred radiator structure is to comprise a plurality of radiating fins that outwards are provided with from rack outer surface, by increasing heat-conducting area quickening radiating rate.

In the technique scheme, described LED mounting seat, support and radiating fin integrated formed structure for constituting by metal heat-conducting spare, the section bar as adopting aluminium alloy or copper etc. to make helps the heat radiation of led chip.

Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:

1, because the utility model LED mounting seat is provided with radiator structure (cavity or fin), solved the heat that produces when a plurality of led chip combinations are arranged, better heat radiating effect can prolong the service life of LED lamp;

2, owing to be provided with the reflecting layer on LED mounting seat inwall, the light that led chip is dispersed gathers together, and improves brightness, under the situation that reaches common fluorescent lamp brightness, can reduce the number of led chip, thereby alleviate the burden of radiator structure, can reach the effect of economize on electricity simultaneously;

3, experiment shows that adopt the LED fluorescent tube of this structure, the illuminating effect of 1～10 watt power consumption can reach the illuminating effect of 20～40 watts of common fluorescent tubes, economize on electricity 70%～80%;

4, adopt the LED fluorescent tube, the not mercurous heavy metal that waits reclaims easily, and is free from environmental pollution; Fluorescent tube does not glimmer simultaneously, can not produce dash current to electrical network yet and disturb;

5, the utility model can substitute existing fluorescent tube use, as long as substitute existing ballast and starter with rectifier power source, also can adopt a rectifier power source to one group of fluorescent tube, thereby, do not need more lamp changing base, can realize the replacement of fluorescent lamp on a large scale, reach power savings.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model embodiment one;

Accompanying drawing 2 is the A-A cutaway view of Fig. 1;

Accompanying drawing 3 is analysed and observe enlarged diagram for the B-B of Fig. 2;

Accompanying drawing 4 is the LED mounting seat structural representation of the utility model embodiment two;

A kind of connecting circuit schematic diagram when accompanying drawing 5 uses for the utility model;

Another kind of connecting circuit schematic diagram when accompanying drawing 6 uses for the utility model.

Wherein: 1, LED mounting seat; 2, light transmission casing; 3, connector; 4, led chip; 5, reflecting layer; 6, support; 7, radiator structure.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment one: referring to accompanying drawing 1 to shown in the accompanying drawing 3, a kind of LED fluorescent tube, comprise housing, be arranged at led chip 4 in the housing and the connector 3 that is sheathed on the housing both sides, each described led chip 4 series connection electrical connector back and on the connector 3 is electrically connected, described housing is cylindrical, constitute by semicircular arc

LED mounting seat

1 and 2 amalgamations of PVC light transmission casing, and connector 3 connections by being sheathed on the housing two ends, 2/3 place is provided with the support 6 of cross-over connection base both sides to the top on described LED mounting seat 1 base, a plurality of led chips 4 are pasted on the lower surface of support 6 by heat-conducting glue, support constitutes radiator structure 7 with mounting seat, described mounting seat and support adopt the machine-shaping of aluminium alloy one, and described LED mounting seat is electroplate with the reflecting layer 5 with reflecting effect to the inner surface at support place and support lower surface.

During use, connector by the housing two ends is plugged in the lamp socket, connector is connected with AC power (220V) through the LED driving power, described connector is made of the sheath body of fixed L ED mounting seat and light transmission casing and the positive and negative contact feet that is arranged on the sheath body, positive and negative contact feet is connected with the positive and negative electrode of driving power respectively, can be in the use by left and right two ends or the wherein connector power supply of an end, connector plays the effect of pegging graft and connecting power supply, can directly be installed on the existing common fluorescent lamp base.The connecting circuit of two kinds of electric power-feeding structures is respectively referring to shown in accompanying drawing 5 and the accompanying drawing 6.

Embodiment two: shown in accompanying drawing 4, its basic structure is identical with embodiment one, difference be described support 6 cross-over connections in LED mounting seat base to the top 3/5 place, described radiator structure 7 comprises support and 6 fins that upwards are provided with side by side, and fin, support and LED mounting seat constitute by the metal of aluminium alloy or other good heat dispersion performance is one-body molded.

Embodiment three, a kind of LED fluorescent tube, comprise housing, be arranged at led chip in the housing and the connector that is sheathed on the housing both sides, each described led chip series connection electrical connector back and on the connector is electrically connected, described housing is cylindrical, constitute by semicircular arc LED mounting seat and the amalgamation of PVC light transmission casing, the junction of described LED mounting seat and light transmission casing is provided with draw-in groove, the edge card of described light transmission casing is located in the described draw-in groove, connector is sheathed on the housing two ends, 3/4 place is provided with the support of cross-over connection base both sides to the top on described LED mounting seat 1 base, a plurality of led chips are pasted on the lower surface of support by heat-conducting glue, support constitutes radiator structure with mounting seat, described mounting seat and support adopt the machine-shaping of aluminium alloy one, and described LED mounting seat is electroplate with the reflecting layer with reflecting effect to the inner surface at support place and support lower surface.。

Claims

1. LED fluorescent tube, comprise housing, be arranged at a plurality of led chips [4] in the housing and the connector [3] that is sheathed on the housing two ends, each described led chip [4] is electrically connected with connector on the connector [3], it is characterized in that: described housing is long strip type, form by LED mounting seat [1] and light transmission casing [2], described LED mounting seat [1] is provided with support [6], described led chip is installed on the support, support [6] constitutes the part of radiator structure [7], and the inner surface of described LED mounting seat [1] is provided with reflecting layer [5].

2. LED fluorescent tube according to claim 1 is characterized in that: described support [6] cross-over connection is in 1/3～4/5 place, base to top of base.

3. LED fluorescent tube according to claim 1 and 2, it is characterized in that: described housing is cylindrical, constitute by semi-cylindrical LED mounting seat [1] and light transmission casing [2] amalgamation, and connector [3] connection by being sheathed on the housing two ends, described support [6] cross-over connection is in semicircular arc LED mounting seat [1], and support constitutes radiator structure [7] with mounting seat.

4. LED fluorescent tube according to claim 3 is characterized in that: the junction of described LED mounting seat and light transmission casing is provided with draw-in groove, and the edge card of described light transmission casing is located in the described draw-in groove.

5. according to claim 1 or 2 or 3 described LED fluorescent tubes, it is characterized in that: described radiator structure [7] comprises a plurality of radiating fins that outwards are provided with from rack outer surface.

6. LED fluorescent tube according to claim 5 is characterized in that: described LED mounting seat, support and the radiating fin integrated formed structure for being made of metal heat-conducting spare.