Background technology
The LED fluorescent lamp is because advantages such as its energy consumption is low, environmental protection are widely used day by day, and the LED fluorescent lamp normally is provided with the led circuit plate that is welded with LED and forms in a transparent or semitransparent PC fluorescent tube.
The structure of now popular a kind of LED fluorescent lamp is as follows:
This LED fluorescent lamp comprises a translucent PC sleeve pipe, inner surface at sleeve pipe, in axial direction in opposite directions be provided with two continuous fins 102, these fin 102 formed planes are divided into a major arc (arc of super semicircle) with the cross section of this sleeve pipe, an and minor arc (arc of small semicircle), with institute's led circuit plate in axial this PC sleeve pipe of insertion of this two fin 102, the led circuit plate is inlayed and is fixed in this two fin 102, in the formed space of the minor arc of sleeve pipe, LED on the led circuit plate is in the major arc of PC sleeve pipe, and the power module 303 on the led circuit plate is arranged on the both sides in the outward appearance pipe.
Adopt the LED fluorescent lamp of said structure to have following shortcoming:
1, since the LED on its led circuit plate in the super semicircle of sleeve pipe, the distance of LED and sleeve pipe is far away, causes that in fact the LED lamp is far away to the distance of photographed object, illuminating effect is not good enough.
2, because led circuit plate (comprising power module 303) has certain weight, need thicklyer could guarantee that the LED fluorescent structure is firm to what sleeve pipe was done, make it to be unlikely to past vertically bending two ends.
3, since the LED on its led circuit plate in the major arc of sleeve pipe, the space of led circuit backboard face is narrow, thus left a blank in the space at sleeve pipe two ends, the power module 303 that is used for being used on the ccontaining led circuit plate LED to power.For the user, the both ends of visible LED fluorescent lamp are invalid illuminator like this, and result of use is not good enough.
4, because led circuit plate (comprising power module 303) can produce suitable heat in the process of work, and the PC cannula portion is beneficial to heat radiation, the poor radiation of fluorescent tube will influence the wherein work of electronic devices and components and fluorescent tube is overheated, influences the service life of this LED fluorescent lamp.
The utility model content
The utility model embodiment provides a kind of LED fluorescent lamp, and its structure is more firm, and thermal diffusivity is better.
A kind of LED fluorescent lamp that the utility model embodiment provides comprises:
Led circuit plate (302), be arranged on the outside sleeve pipe of led circuit plate (302), described sleeve pipe is made up of metal foot (204), transparent top (101), be provided with the groove (203) of two symmetries at the outer surface of described metal foot (204), inner surface on described transparent top (101) is provided with the fin (102) of two symmetries, described fin (102), groove (203) are worked in coordination, and wherein, described metal foot (204) is arranged on the back side of described led circuit plate (302).
Optionally, in the inboard of described metal foot (204), be provided with two in opposite directions chutes (201) along axis direction, described two chutes (201) are in opposite directions the axial open end that is arranged at described metal foot (204) respectively, and described led circuit plate (302) is fixed in the described chute (201).
Optionally, in described metal foot (204), along described metal foot (204) axially, also be provided with a horizontal stripe (302), the power module (106) of described led circuit plate (302) is arranged in the cavity between described horizontal stripe (302) and the described metal foot (204).
Optionally, the material of described horizontal stripe (302) is a metal.
Optionally, the material of described metal foot (204) and/or described horizontal stripe (302) is an aluminium.
Optionally, the plug (304) that is arranged on the two-port of described sleeve pipe is provided with at least two screws (401), and described lamp holder is provided with at least one screw (501), the screw (401) on described lamp holder (305), the plug (304), (501) coupling.
By on see that the LED fluorescent lamp of the utility model embodiment has following advantage with respect to prior art:
1, since the sleeve pipe of the LED fluorescent lamp of the utility model embodiment constitute by metal foot 204, transparent top 101, so the sound construction of this LED fluorescent lamp, can be to axial bending two ends.Adopt the advantage of this structure also to comprise: can do the sleeve pipe that is used for printing opacity thin as far as possible, can make the LED fluorescent lamp have firm structure like this, can make the LED fluorescent lamp have higher light transmittance again, obtain more excellent illuminating effect as far as possible.
2, be metal material because the metal foot 204 at the LED fluorescent lamp back side is set, its thermal conductivity is good, helps the heat radiation of LED fluorescent lamp when work, makes the more stable work of this LED fluorescent lamp, longer service life.
3, because sleeve pipe is the metal foot 204 of metal material near led circuit plate bottom, and metal foot 204 can play shielding to the circuit structure of LED fluorescent lamp, prevents that its electric property is subjected to external disturbance, guarantee optimum illumination effect.
The specific embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.
Referring to Fig. 1,2,3,4,5,6, the fluorescent lamp of present embodiment comprises:
Led circuit plate 302, be arranged on the sleeve pipe of led circuit plate 302 outsides, described sleeve pipe is made up of metal foot 204, transparent top 101, metal foot (204) is arranged on the back side of described led circuit plate 302, be the top that transparent top 101 is arranged on the LED on the led circuit plate 302, LED light can be realized illumination by this transparent top 101.
Be provided with the groove 203 of two symmetries on the top of described outer metallic surface, inner surface on described transparent top 101 is provided with the fin 102 of two symmetries, fin 102, groove 203 are worked in coordination, transparent top 101, metal foot 204 can be worked in coordination seamless combination together by fin 102, groove 203, and it engages referring to shown in Figure 1.
The LED fluorescent lamp also comprises: the lamp holder 305 that is arranged on the sleeve pipe two ends, be arranged on the plug 304 between lamp holder 305 and the sleeve pipe, plug 304 is used for fixing lamp holder 305, lamp holder 305 is provided with conductive electrode 502, conductive electrode 502 is used to receive the external power source input, and this external power source is inputed to the power module 303 of led circuit plate 302, the external power source that power module 303 inserts conductive electrode 502 is converted into the required power supply of led circuit plate 302, think the LED power supply on the led circuit plate 302, this power module 303 both can be Switching Power Supply, also can be the power module 303 of other type.
Because the sleeve pipe of the LED fluorescent lamp of the utility model embodiment is made of metal foot 204, transparent top 101, thus the sound construction of this LED fluorescent lamp, can be to axial bending two ends.Adopt the advantage of this structure also to comprise in addition: can do the transparent top 101 that is used for printing opacity thin as far as possible, can make that like this LED fluorescent lamp has firm structure, can make that again the LED fluorescent lamp has higher light transmittance, obtain more excellent illuminating effect as far as possible.
Simultaneously, be metal material because the metal foot 204 at the LED fluorescent lamp back side is set, its thermal conductivity is good, and the heat radiation when helping the work of LED fluorescent lamp makes the more stable work of this LED fluorescent lamp, longer service life.
In addition, because sleeve pipe is the metal foot 204 of metal material near led circuit plate bottom, metal foot 204 can play shielding to the circuit structure of LED fluorescent lamp, prevents that its electric property is subjected to external disturbance, guarantees optimum illumination effect.
In the present embodiment, the material of this metal foot 204 preferred but be not limited in light weight, thermal conductivity good, the aluminium of good luster.
In the present embodiment, the fixedly design of this led circuit plate 302 and metal foot 204 can but be not limited to adopt following mode:
Shown in Fig. 2,3, in the inboard of metal foot 204, two chutes 201 are set along axis direction, two chutes 201 are in opposite directions the axial open end that is arranged at metal foot 204 respectively, led circuit plate 302 is inlayed and is fixed in the chute 201, and the LED light-emitting area on the led circuit plate 302 is the cavity of metal foot 204 dorsad.
Because the space between the back side of led circuit plate 302 and the cavity of metal foot 204 is enough wide, can with on the led circuit plate 302, be used for holding (referring to Fig. 3) in this cavity to the power module 303 of LED power supply, and power module 303 need not be arranged on the both sides of sleeve pipe, it seems by the user like this, almost the whole LED fluorescent lamp is effective luminous element, helps strengthening user's use experience.
The metal foot 204 of present embodiment is except the structure with bodies such as more excellent radiating effect and reinforcings, can also make that the structure of led circuit plate 302 back and the power module 303 that is dissolved in nontransparent inner metal sleeve pipe are invisible, make that like this visual effect of LED fluorescent lamp is more attractive in appearance, help strengthening user's use experience.
Need to prove, present embodiment preferably is placed in the power module 303 of led circuit plate 302 in the cavity of metal foot 204 at led circuit plate 302 back sides, but be not limited to this, also it can be arranged at two ends or an end wherein in the sleeve pipe, perhaps can also also can be external in light fixture (support of fluorescent tube or lamp panel) the inside.
In the present embodiment, can be referring to shown in Fig. 2,3, in the inboard of metal foot, along metal foot 204 axially, also be provided with a horizontal stripe 202, the power module 303 of described led circuit plate 302 can be arranged at like this in the cavity between described horizontal stripe 202 and the metal foot 204.This horizontal stripe 202.
This horizontal stripe 202 preferable alloy (such as aluminium) in addition particularly with the metal of metal foot 204 the same materials, help integrally formed like this.Adopt metal except helping guaranteeing that each parts fixing in the LED fluorescent lamp is difficult for moving more in order, also help the heat radiation of led circuit plate 302 and power module 303, and the electromagnetic interference of shielding led circuit plate 302 and power module 303, keep optimum electromagnetic performance, guarantee illuminating effect.
102 pairs of two fins of the formation chute 201 in the present embodiment both can be made up of two continuous fins 102, also can by respectively on two straight lines discontinuous projection form.
Plug 304, lamp holder 305 in the present embodiment can adopt following mode:
Plug 304 is designed to the structure of Fig. 4, the plug 304 and the chute 201 of metal foot 204 are mated, can make the position relative fixed of itself and metal foot 204 and led circuit plate 302 by this coupling, this coupling can further be strengthened the supporting role of whole sleeve pipe to led circuit plate 302 simultaneously; Between plug 304 and metal foot 204, plug 304 and sleeve pipe, can fix by playing glue, preferred only at 204 dozens of glue of metal foot for the purpose of attractive in appearance, can make that like this glue of being beaten is externally invisible.
In addition, being connected between plug 304 and the lamp holder 305 both can adopt the mode of playing glue of prior art to fix in the present embodiment, also can adopt screw to connect or riveted way is fixed:
Plug 304 is provided with at least two screws 401 (Fig. 4), lamp holder is provided with at least one screw 501 (Fig. 5), and make the screw on lamp holder 305 and the plug 304 mate, like this when the LED fluorescent lamp is installed, can rotate lamp holder 305, plug 304 as required up to finding the screw of suitable position, more fixedly plug 304 and lamp holder 305 on this screw.Adopt the LED fluorescent lamp of this design, the light angle selection scheme of multiple LED fluorescent lamp can be provided to the user, the user can select as required, more meets the requirement of human oriented design.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment just is used to help to understand the principle of the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.