CN101329039B

CN101329039B - Led daylight lamp

Info

Publication number: CN101329039B
Application number: CN2008101426468A
Authority: CN
Inventors: 张志海; 蔡小平
Original assignee: Dongguan Kingsun Optoelectronic Co Ltd
Current assignee: Dongguan Kingsun Optoelectronic Co Ltd
Priority date: 2008-07-28
Filing date: 2008-07-28
Publication date: 2010-09-01
Anticipated expiration: 2028-07-28
Also published as: CN101329039A

Abstract

The invention relates to an LED fluorescent lamp which comprises a lamp tube, end covers at two ends of the light tube and terminals arranged on the covers; the end covers comprise a primary end cover and a secondary end cover, wherein, the secondary end cover can rotate corresponding to the primary end cover and can be positioned at a proper angle; therefore, the light exit direction of the light tube and the included angle between two end covers can be adjusted so as to meet the requirements of different fluorescent lamp brackets. The fluorescent lamp can be used for fluorescent lamp brackets of different specifications, thus playing an improving role for the popularity of LED light fitting with strong applicability.

Description

The LED fluorescent lamp

Technical field

The invention belongs to lighting field, relate to the LED fluorescent lamp.

Background technology

LED has been widely applied in the luminous scene of various needs as rising industry, and particularly the development of LED technology recently greatly improves the LED luminous efficiency, therefore also is subjected to the favor of illumination market.In room lighting, use most often fluorescent lamp now, i.e. fluorescent lamp.The a variety of fluorescent tubes that are made as light source with LED are also arranged on the market now, and it becomes a kind of light of replace fluorescent lamps by means of the outstanding performance of LED.In order to cater to the market demand and people's use habit, existing LED fluorescent tube generally all is shape and the mounting means that follows fluorescent tube, be made into tubulose and two terminals respectively are installed at two ends, after then in the mount pad of the lamp bracket that terminal is inserted into, fluorescent tube is rotated to the just installation of suitable angle.For two kinds of fluorescent tubes, fluorescent tube can both be luminous on 360 degree directions owing to operation principle own, plays just spending towards 180 of lamp bracket light direction at it of illuminating effect, though in the lamp bracket bottom reflecting layer is housed, but still have the part light loss; And the Lights section of LED fluorescent tube is plane LED lamp plate, consider the lighting requirement that only needs 180 degree bright dippings, therefore do not need to accomplish that 360 degree are luminous, and only need 180 to spend bright dippings, can not only make the LED fluorescent tube simple in structure like this, also can save cost of manufacture, so the LED fluorescent tube generally all is made into the scheme of 180 degree bright dippings.When using the LED fluorescent tube, will consider the angle problem that exists when installing, need to adjust the angle between two terminals and the LED fluorescent tube exiting surface, to adapt to the requirement of lamp bracket mount pad, the exiting surface that makes the LED fluorescent tube is perpendicular to the illumination plane on the lamp bracket light direction, over against the direction of needs illumination, in a single day determine just can not change for this angle of LED fluorescent tube now.

Nowadays lamp bracket on the market is varied, because the luminous energy of fluorescent lamp 360 degree is suitable for all lamp brackets, so daylight lamp bracket does not have unified production standard now.Distinguish by slot that inserts for the fluorescent tube terminal on the lamp bracket mount pad and the angle between the lamp bracket illumination plane, the most common several are three kinds at an angle of 90 degrees, miter angle and 0 degree angles, certain lamp bracket that other angle is arranged of also not getting rid of.When using the LED fluorescent tube to replace fluorescent tube, may the inconsistent problem of angle of arrival.After being installed in the LED fluorescent tube on the lamp bracket, may on the lamp bracket of some angle, can correctly can use, but the light direction of LED fluorescent tube can not be in correct position on the lamp bracket of other angle the time.

Summary of the invention

At the problems referred to above, the invention provides a kind of LED fluorescent lamp, it uses in the daylight lamp bracket of various different angles, and can keep the light direction of fluorescent tube to be in correctly at lighting position, applicable to multiple daylight lamp bracket.

In order to achieve the above object, the scheme that the present invention adopts is: a kind of LED fluorescent lamp, comprise the end cap of fluorescent tube, lamp tube ends and the terminal on the end cap, it is characterized in that: above-mentioned end cap comprises main end cap and secondary end cap, main end cap is installed on lamp tube end, secondary end cap is installed on the main end cap, and terminal is installed on the secondary end cap; Have a circular concave on the main end cap, secondary end cap is positioned at this circular concave, and the external diameter of secondary end cap and the internal diameter of above-mentioned circular concave match, and secondary end cap can rotate by main relatively end cap; Have at least two grooves on the above-mentioned circular concave inwall, has a projection on the secondary end cap outer wall, described groove and projection shape are complementary, and when the relative rotation that can hinder all the time in projection any one groove in above-mentioned at least two grooves between secondary end cap and the main end cap; Described at least two grooves are arranged by predetermined angle; The position corresponding with projection has a fan annular through-hole on the described secondary end cap; Have a cylinder on the described secondary end cap central shaft, have a stop block on this cylinder outer wall; Circular concave bottom centre shaft position has a round tube hole that mates with above-mentioned cylinder on the described main end cap, and this round tube hole inboard has a deep-slotted chip breaker that is complementary with above-mentioned stop block; Described main end cap circular concave bottom has an arc-shaped through-hole with one of them terminal correspondence position on the secondary end cap.

Compare with existing LED fluorescent tube, fluorescent tube of the present invention can be regulated the residing angle of the relative fluorescent tube of terminal of lamp tube ends, at different daylight lamp brackets, terminal can both be adjusted to suitable angle, therefore can be applicable to the lamp bracket of multiple different angles, improve the applicability of product, saved unnecessary trouble.

Description of drawings

Fig. 1 is a profile schematic diagram of the present invention;

Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of terminal;

Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram at another visual angle of terminal.

The specific embodiment

The present invention is a kind of LED fluorescent lamp, and with reference to Fig. 1, it comprises fluorescent tube 1, end cap 2 and terminal 3, and end cap 2 is installed on fluorescent tube 1 two ends respectively, and terminal 3 is fixedly installed on the end cap 2.

With reference to Fig. 2, end cap 2 comprises main end cap 21 and secondary end cap 22, and main end cap 21 is installed on fluorescent tube 1 end, and terminal 3 is fixedly installed on the secondary end cap 22.Offer a circular concave 211 on main end cap 21, secondary end cap 22 places in this circular concave 211, and secondary end cap 22 sizes and circular concave 211 sizes match, and secondary end cap 22 can main relatively end cap 21 rotations in circular concave 211.The inwall of circular concave 211 is provided with several grooves 212, and the outer wall of secondary end cap 22 is provided with a projection 222, groove 212 is complementary with the shape of projection 222, can hinder the relative rotation between secondary end cap 22 and the main end cap 21 when projection 222 is just in groove 212.Groove 212 can be provided with a plurality of, and the angle between the adjacent grooves 212 can arrange whole grooves 212 by pre-provisioning request setting on request.Be provided with a fan annular through-hole 221 with projection 222 correspondence positions on the secondary end cap 22, certain deformation can take place in the outer wall of fan annular through-hole 221, so projection 222 can be to secondary end cap 22 centre indentation certain distances.

Refer again to the main end cap 21 among Fig. 2 and Fig. 3, be provided with a round tube hole 213 and an arc-shaped through-hole 215 at circular concave 211 bottom centre positions, offer one section deep-slotted chip breaker 214 in round tube hole 213 inboards, with reference to the secondary end cap 22 among Fig. 3, its central shaft position has a cylinder 223, and the outer wall of cylinder 223 is provided with a stop block 224.Deep-slotted chip breaker 214 is complementary with stop block 224, deep-slotted chip breaker 214 has certain radian, stop block 224 can rotate in this radian scope, arc-shaped through-hole 215 also has certain radian, and have correspondence position with one of them terminal 3 on the secondary end cap 22, when secondary end cap 22 was positioned at circular concave 211, the end of this terminal 3 was inserted in the arc-shaped through-hole 215, and can rotate in its radian along arc-shaped through-hole 215, conductor wire also can be from arc-shaped through-hole 215 processes simultaneously.

After being installed on this LED fluorescent lamp on the lamp bracket,, just can carry out angle adjustment to the end cap on the fluorescent tube 12 if the light direction of the light direction of fluorescent tube 1 and lamp bracket is inconsistent.In order to adapt to various lamp bracket, main end cap 21 has also carried out corresponding setting with the cooperation between the secondary end cap 22.Groove 212 on the main end cap 21 has a plurality of, suppose that first groove 212 angles of living in are 0 degree, second groove 212 can be arranged on so on the 30 degree positions, the 3rd groove 212 can be arranged on the 45 degree positions, the 4th groove 212 is arranged on the 60 degree positions, and the like, a plurality of grooves 212 are arranged by predetermined angle.The desired angle of the most frequently used now lamp bracket is all in 90 degree scopes, so angle is 90 degree between first groove 212 and last groove 212.When carrying out angular adjustment, make main relatively end cap 21 rotations of secondary end cap 22 by certain external force, because their size relationship, can make the position less deformation of generation at projection 222 places cause the certain distance that contracts in the projection 222, rotational resistance can be reduced like this, suitable angle can be more easily rotated to.The maximum angle of regulating is 90 degree, deep-slotted chip breaker 214 therefore above-mentioned accordingly all is set at 90 degree with the radian of arc-shaped through-hole 215, can limit secondary end cap 22 like this and can not exceed 90 degree when rotated, what realize this function is stop block 224 and deep-slotted chip breaker 214, maximum angle was 90 degree when stop block 224 rotated in deep-slotted chip breaker 214, and terminal 3 also can play this type of effect with arc-shaped through-hole 215 simultaneously.After angle between fluorescent tube 1 light direction and two terminals 3 was adjusted to suitable position, this moment, projection 222 also was fastened in certain groove 212, hindered relative rotation between secondary end cap 22 and the main end cap 21.Need the external force of rotating light tube 1 very little when fluorescent tube 1 is installed to lamp bracket, can not cause angle to change.

Main end cap 21 can link together by screw with secondary end cap 22, pass round tube hole 213 on the main end cap 21 with a self-tapping screw then offering a threaded interior hole on cylinder 223 central shafts, screw in the threaded interior hole on the secondary end cap 22, the nut diameter of screw so just can link together main end cap 21 greater than the diameter of round tube hole 213 with secondary end cap 22.Cylinder 223 tip designs can be become the grab shape in addition, be stuck in the bottom of circular concave 211 on the main end cap 21, also can reach identical purpose.When adjusting angle, can directly rotate two terminals 3 and make secondary end cap 22 rotations, also can on secondary end cap 22, offer an adjustment hole or regulating tank, make secondary end cap 22 rotations by other instrument, these methods all are common practise, in this just no longer narration.

The present invention can use on the daylight lamp bracket of various different sizes, and applicability is strong, for the universal impetus that played of LED light fixture.

Claims

1. a LED fluorescent lamp comprises the end cap of fluorescent tube, lamp tube ends and the terminal on the end cap, it is characterized in that: above-mentioned end cap comprises main end cap and secondary end cap, and main end cap is installed on lamp tube end, and secondary end cap is installed on the main end cap, and terminal is installed on the secondary end cap; Have a circular concave on the main end cap, secondary end cap is positioned at this circular concave, and the external diameter of secondary end cap and the internal diameter of above-mentioned circular concave match, and secondary end cap can rotate by main relatively end cap; Have at least two grooves on the above-mentioned circular concave inwall, has a projection on the secondary end cap outer wall, described groove and projection shape are complementary, and all can hinder relative rotation between secondary end cap and the main end cap when time in projection any one groove in above-mentioned at least two grooves.

2. LED fluorescent lamp according to claim 1 is characterized in that: described at least two grooves are arranged by predetermined angle.

3. LED fluorescent lamp according to claim 1 is characterized in that: the position corresponding with projection has a fan annular through-hole on the described secondary end cap.

4. LED fluorescent lamp according to claim 3 is characterized in that: have a cylinder on the described secondary end cap central shaft, have a stop block on this cylinder outer wall; Circular concave bottom centre shaft position has a round tube hole that mates with above-mentioned cylinder on the described main end cap, and this round tube hole inboard has a deep-slotted chip breaker that is complementary with above-mentioned stop block.

5. LED fluorescent lamp according to claim 3 is characterized in that: described main end cap circular concave bottom has an arc-shaped through-hole with one of them terminal correspondence position on the secondary end cap.