CN203892937U

CN203892937U - Lamp tube

Info

Publication number: CN203892937U
Application number: CN201420256140.0U
Authority: CN
Inventors: 应园; 钟华林
Original assignee: Ningbo Donglong Optoelectronic Technology Co Ltd
Current assignee: Ningbo Donglong Optoelectronic Technology Co Ltd
Priority date: 2014-05-19
Filing date: 2014-05-19
Publication date: 2014-10-22
Anticipated expiration: 2024-05-19

Abstract

The utility model relates to a lamp tube. Modifications are made on the basis of the prior parts, such as a lampshade, a radiating lamp shell, an LED unit, an LED drive circuit, a first end cap having a pair of lamp pins and a second end cap having a pair of lamp pins, namely, one of the first and second end caps is a lamp holder end cap; the lamp pins of the lamp holder end cap are both connected with the power input end of the LED drive circuit; the lamp pins of one of the first and second end caps are used for supporting a lamp tube body, and the other of the first and second end caps serves as a support end cap. The power input end of the LED drive circuit is only connected with the lamp pins of the lamp holder end cap; accordingly, during mounting, the LED drive circuit is mounted as close to the lamp holder end cap as possible, a short part of a power wire remains in the lamp tube body during wiring, the influence on electrical insulating strength, creepage distance and the like is minimized, and qualification rate of products is increased; meanwhile, the structure with a single side for electrical access helps improve demounting and mounting safety.

Description

Fluorescent tube

Technical field

The utility model relates to a kind of lighting, specifically a kind of fluorescent tube that adopts the fluorescent lamp of LED illuminator.

Background technology

The advantages such as volume is little because having for LED fluorescent lamp, energy-conserving and environment-protective, long service life, noise are little substitute common fluorescent lamp gradually.The fluorescent tube of existing LED fluorescent lamp includes lampshade, heat-dissipation lamp housing, LED luminous component and LED drive circuit and respectively with the first end cap, second end cap of a pair of lamp base, wherein lampshade and heat-dissipation lamp housing are dismantled connection mutually, first, second end cap is separately fixed at the two ends after lampshade is connected with heat-dissipation lamp housing, LED luminous component and LED drive circuit are installed on heat-dissipation lamp housing, the work of LED drive circuit energy driving LED illuminator.

At present, above-mentioned LED fluorescent lamp in use, first, on a pair of lamp base of the second end cap, all there is electric current to flow through, , electric current is that the lamp base that covers from the first end lamp base through the second end cap again of flowing through LED drive circuit flows out, adopt such mode of connection, although can make LED illuminator normally works, but find in light fixture checkout procedure, because fluorescent tube is originally as long elongated thing, LED drive circuit assembly that position in fluorescent tube no matter, wire must be through the length of whole fluorescent tube, thereby can affect electric insulation intensity and the creep age distance of fluorescent tube, make subsequent survey time, have portioned product and cannot reach above-mentioned electric property requirement, thereby reduced the qualification rate of product.This electric connecting mode, also can reduce the security in use procedure simultaneously.

Utility model content

Technical problem to be solved in the utility model is the present situation for prior art, and a kind of simple in structure, good electric property, safe fluorescent tube are provided.

The utility model solves the problems of the technologies described above adopted technical scheme: a kind of fluorescent tube, include lampshade, heat-dissipation lamp housing, LED luminous component and LED drive circuit and respectively with the first end cap of a pair of lamp base, the second end cap, wherein lampshade and heat-dissipation lamp housing are dismantled connection mutually, described first, the second end cap is separately fixed at the two ends after described lampshade is connected with heat-dissipation lamp housing, described LED luminous component and LED drive circuit are installed on described heat-dissipation lamp housing, and the power output end of described LED drive circuit is connected with the LED illuminator in LED luminous component, it is characterized in that: described first, a wherein end cap in the second end cap is lamp holder end cap, two lamp bases that this lamp holder end covers are connected with the power input in LED drive circuit respectively, described first, two lamp bases that the other end in the second end cap covers are used for support luminous tube and make this another end cap become supports end cap.

In order to be useful on traditional lamp socket, between two lamp bases in described supports end cap, can be connected with electric conductor.

In order to obtain better radiation response, and can be convenient for assembly, further preferably, on described heat-dissipation lamp housing, be provided with the draw-in groove of offering along its length, described circuit board is inserted in this draw-in groove, and this heat-dissipation lamp housing also forms respectively the boss extending along its length in the both sides that are positioned at draw-in groove, the surface design of each boss becomes to make the surface of two boss be arranged to splayed structure from the outward-dipping inclined-plane of draw-in groove, and the outer side edges of each boss is along the upper card division that also forms inserting connection lampshade.

In above-mentioned further preferred version, between the surface of the above two boss, form the angle of 140 °～145 °.Preferably, between the surface of described two boss, form the angle of 141 °.

In above-mentioned each scheme, on circuit board in described LED luminous component, be welded with female connector that negative electrode, anode with LED illuminator are electrically connected, the power output end of described LED drive circuit is plugged on a Male connector by wire, and the female connector phase inserting described in this Male connector connects.The power output end of LED drive circuit can be realized and being connected fast with LED illuminator by this male and female connector like this.

Compared with prior art, two lamp bases that only cover with lamp holder end due to the power input of LED drive circuit of the present utility model are connected, therefore when mounted, this LED drive circuit can be positioned as close to this lamp holder end cap, and when line, the length that power line is stayed in fluorescent tube is shorter like this, thereby can be reduced to minimum to impacts such as electric insulation intensity and creep age distances, to improve the qualification rate of product, electric structure is entered, the security performance while also contributing to improve dismounting in this one end simultaneously.

Accompanying drawing explanation

Fig. 1 is the stereogram of the utility model embodiment;

Fig. 2 is the three-dimensional exploded view of Fig. 1;

Fig. 3 is the amplification decomposition figure (removing after lampshade) of lamp holder end caps in Fig. 1;

Fig. 4 is that Fig. 1 removes the stereogram after lamp holder end cap;

Fig. 5 is the front view of Fig. 4.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.

As shown in Figures 1 to 5, this fluorescent tube includes lampshade 1, heat-dissipation lamp housing 2, LED luminous component 3 and respectively with the first end cap and second end cap of a pair of lamp base, wherein on heat-dissipation lamp housing 2, be provided with the draw-in groove 21 of offering along its length, this heat-dissipation lamp housing 2 also forms respectively the boss 22 extending along its length in the both sides that are positioned at draw-in groove, the surface design of each boss becomes to make the surface of two boss be arranged to splayed structure from the outward-dipping inclined-plane of draw-in groove, the outer side edges of each boss is along the upper card division 23 that also forms, this card division 23 is used for inserting and connects lampshade 1, make lampshade 1 and heat-dissipation lamp housing 2 mutually quick-detachment be connected.

LED luminous component 3 comprises circuit board 31 and is arranged on the adopting surface mounted LED illuminator 32 on this circuit board, is also welded with female connector 33 that negative electrode, anode with LED illuminator are electrically connected simultaneously on this circuit board 31.Circuit board 31 is inserted in the draw-in groove 21 of above-mentioned heat-dissipation lamp housing.The drive circuit 4 of energy driving LED illuminator 32 work is arranged in the die cavity of heat-dissipation lamp housing 2, and the above-mentioned LED luminous component 3 and the LED drive circuit 4 that make are installed on heat-dissipation lamp housing 2.

Described first, the second end cap is fixed on the two ends after lampshade 1 is connected with heat-dissipation lamp housing 2 by two screws respectively, this is first years old, a wherein end cap in the second end cap is lamp holder end cap 5, in the present embodiment, right end cap is lamp holder end cap 5, two lamp bases 51 on this lamp holder end cap 5 are connected with the power input in LED drive circuit 4 respectively by wire a separately, power output end in LED drive circuit 4 is plugged on a Male connector 41 by wire b, this Male connector 41 is connected with above-mentioned female connector 33 phase insertings, make the power output end of LED drive circuit 4 by these public affairs, the moon of LED illuminator 32 in female connector and LED luminous component 3, anode phase fast electric connects.Another end cap in described first, second end cap, i.e. the left end cap of the present embodiment, two lamp bases 61 on this left end cap are used for support luminous tube and make this another end cap become supports end cap 6.

Needs according to occasion is installed, also can be connected with electric conductor 7 between two lamp bases 61 in supports end cap 6, now, fluorescent tube can be arranged on traditional bracket for fluorescent tube, can reduce alternative costs, thereby transformation is got up also more for convenience.

Simultaneously better for lighting effect, between the surface of above-mentioned two boss 22, form the angle α of 140 °～145 °, be preferably 141 °.

Claims

1. a fluorescent tube, include lampshade, heat-dissipation lamp housing, LED luminous component and LED drive circuit and respectively with the first end cap of a pair of lamp base, the second end cap, wherein lampshade and heat-dissipation lamp housing are dismantled connection mutually, described first, the second end cap is separately fixed at the two ends after described lampshade is connected with heat-dissipation lamp housing, described LED luminous component and LED drive circuit are installed on described heat-dissipation lamp housing, and the power output end of described LED drive circuit is connected with the LED illuminator in LED luminous component, it is characterized in that: described first, a wherein end cap in the second end cap is lamp holder end cap, two lamp bases that this lamp holder end covers are connected with the power input in LED drive circuit respectively, described first, two lamp bases that the other end in the second end cap covers are used for support luminous tube and make this another end cap become supports end cap.

2. fluorescent tube according to claim 1, is characterized in that: between two lamp bases in described supports end cap, be connected with electric conductor.

3. fluorescent tube according to claim 1 and 2, it is characterized in that: on described heat-dissipation lamp housing, be provided with the draw-in groove of offering along its length, described circuit board is inserted in this draw-in groove, and this heat-dissipation lamp housing also forms respectively the boss extending along its length in the both sides that are positioned at draw-in groove, the surface design of each boss becomes to make the surface of two boss be arranged to splayed structure from the outward-dipping inclined-plane of draw-in groove, and the outer side edges of each boss is along the upper card division that also forms inserting connection lampshade.

4. fluorescent tube according to claim 3, is characterized in that: between the surface of described two boss, form the angle of 140 °～145 °.

5. fluorescent tube according to claim 4, is characterized in that: between the surface of described two boss, form the angle of 141 °.

6. fluorescent tube according to claim 4, it is characterized in that: on the circuit board in described LED luminous component, be welded with female connector that negative electrode, anode with LED illuminator are electrically connected, the power output end of described LED drive circuit is plugged on a Male connector by wire, and the female connector phase inserting described in this Male connector connects.