CN201462698U

CN201462698U - Cap cover structure of improved LED (light emitting diode) lamp tube

Info

Publication number: CN201462698U
Application number: CN2009200967300U
Authority: CN
Inventors: 杨美龄; 吴政勋
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-14
Filing date: 2009-05-14
Publication date: 2010-05-12
Anticipated expiration: 2019-05-14

Abstract

The utility model discloses a cap cover structure of an improved LED (light emitting diode) lamp tube, which is provided with a cap cover and a terminal fixing plate combined with two terminals. The two terminals penetrate out of the cap cover from the inner side of the cap cover, so as to lead a terminal fixing cover to lean against the inner side of the cap cover; the terminals at the outer side of the cap cover are provided with gaskets in a penetrating manner; a stop plug which is arranged in the cap cover is fixed at the cap cover by a fixing element, so as to lead the terminal fixing plate to be clamped between the stop plug and the inner side face of the cap cover. The cap cover structure can avoid the terminals from retracting into the cap cover when the terminals bear an axial impact force.

Description

Improved light-emitting diode lamp tube cap structure

Technical field

The utility model relates to a kind of diode lamp tube, relates in particular to a kind of terminal that can prevent to be located at cap improved light-emitting diode lamp tube cap structure in the retraction cap when being subjected to axial impact force.

Background technology

Before so-called " Electricity-saving lamp bulb " do not ask the city as yet, generally used light source to be generally tengsten lamp and fluorescent lamp, because the higher and power consumption of caloric value of tengsten lamp, therefore in the place of business of a large amount of electricity consumptions of needs as illumination by people, even general family, prefer the use fluorescent lamp usually.Recently, appeal in green group and government under the agitation of using electricity wisely that the use of Electricity-saving lamp bulb is as day by day popularizing as surging forward; Wherein, because little, the little power consumption of volume, ((lightemitting diode is called for short LED) becomes photoelectric cell indispensable in the daily life to light emitting diode already.More progressive and make in the higher epoch of the brightness of LED at advanced IT application and material, the application of LED is also more and more wide, no longer be confined to limited application, and then the development of the lighting of marching toward, the application of outdoor photoelectric field such as traffic sign and outdoor billboard even.

The basic structure of LED is an electroluminescent semi-conducting material, places on the leaded shelf, uses epoxy sealing then all around, to protect inner heart yearn.It is multiple that present LED has bulb type, plane etc., and be made into the form of similar fluorescent tube, and attempt replaces fluorescent lamp as economizing electric light source.

As shown in Figure 6, general LED fluorescent tube, primary structure is that a circuit board 11 that is provided with several LED111 elements is set in the fluorescent tube 1 of a light-permeable, a cap 2 with two terminals 23 is then made up at the two ends of fluorescent tube 1 respectively, electrically connect with electric wire between two-terminal 23 and the circuit board 22, after feeding electric current, can make LED luminous.Should have the combining structure of cap 2 with the terminal 23 of LED fluorescent tube now, be after earlier two-terminal 23 being fixed in terminal fixed head 22, again terminal 23 is passed the hole that defaults in cap 2 from cap 2 inboards, and terminal fixed head 22 is locked in cap, the terminal 23 that passes cap 2 outsides then is equipped with pad 24, by the slit between pad 24 sealing terminals and the cap hole.

Because the use of LED fluorescent tube is day by day popularized, so relevant unit requires also strict day by day in the safety verification of this product; Above-mentioned safety verification includes impulse withstand test, and it can place a certain height with complete LED fluorescent tube product, falls in the freely falling body mode then, is subjected to the damaged condition that causes behind the bump of ground with check LED fluorescent tube.Because LED is mostly with the plastifying material manufacturing, so general dropping do not have damaged problem, therefore, usually, above-mentioned test safety code requirement, tolerable terminal are subjected to impacting the suitably bending of degree of back, but do not allow in the terminal retraction cap, because if after in the terminal retraction cap, will cause the doubt of Electrical Safety aspects such as electric leakage, loose contact.

The main purpose of aforementioned existing terminal fixed head 22 is to prevent that terminal 23 from axially detaching cap 2 outsides, but can not effectively prevent terminal 23 axial retraction caps 2, can't reduce so that carry out the fraction defective in product safety when test.

The utility model content

Technical problem underlying to be solved in the utility model is, overcomes the above-mentioned defective that prior art exists, and a kind of improved light-emitting diode lamp tube cap structure is provided, and can avoid terminal retraction cap when terminal is subjected to axial impact force.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of improved light-emitting diode lamp tube cap structure, has a cap, an and terminal fixed head that is combined with two-terminal, this two-terminal passes cap from described cap inboard, make this terminal fixed cap be resisted against this cap inboard, the terminal that is positioned at this cap outside is equipped with pad, it is characterized in that: a backstop plug is set in the described cap, and this backstop plug is fixed in described cap with a retaining element, this terminal fixed head is pulled between this backstop plug and cap medial surface by folder.Make when terminal is subjected to axial impact force that this impulsive force is able to be stopped by this backstop plug and avoid terminal retraction cap, thereby avoid the security concerns of electricity consumption, and frequently change fluorescent tube and cause economically loss.

Aforesaid improved light-emitting diode lamp tube cap structure wherein is provided with a buffer gasket between backstop plug and the terminal fixed head.

Aforesaid improved light-emitting diode lamp tube cap structure wherein is provided with a buffer gasket between cap lateral surface and this pad.

Aforesaid improved light-emitting diode lamp tube cap structure, wherein retaining element is a tapping screw.

The buffer element that the utility model provides is a kind of buffer gasket, and this buffer gasket can be located between described backstop plug and the terminal fixed head.Also can all can reach and absorb the terminal vibrations, further reduce the effect of terminal retraction cap in regular turn at sheathed this buffer gasket of the terminal that passes the cap lateral surface and pad.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the perspective exploded view of the utility model light-emitting diode lamp tube cap first embodiment.

Fig. 2 is the plan cross-section decomposing schematic representation of the cap main element syntagmatic of the utility model first embodiment.

Fig. 3 is the combined planar cutaway view of the cap structure of the utility model first embodiment.

Fig. 4 is the perspective exploded view of the utility model light-emitting diode lamp tube cap second embodiment.

Fig. 5 is the combined planar cutaway view of the cap structure of the utility model second embodiment.

Fig. 6 is the section plan of existing light-emitting diode lamp tube cap structure.

The number in the figure explanation:

1 ... fluorescent tube

11 ... circuit board

111……LED

2 ... cap

21 ... hole

22 ... the terminal fixed head

23 ... terminal

24 ... pad

25,25A ... buffer gasket

26 ... the backstop plug

3 ... tapping screw

The specific embodiment

Consult Fig. 1 to Fig. 3, the improved light-emitting diode lamp tube cap structure that the utility model provides, include: a fluorescent tube 1 and two caps 2, wherein, in this fluorescent tube 1 light emitting diode module is set, this light emitting diode module comprises a circuit board 11 and several LED 111 that are located on this circuit board 11.Described two caps 2 are combined in fluorescent tube 1 two ends respectively, because the cap at two ends is all identical with the combining structure of terminal, so only do explanation with an end.Described cap 2 is provided with two-terminal 23, electrically connects with the electric wire (not shown) between terminal 23 and the circuit board 11; The combining structure of this terminal 23 and cap 2, be with two ends 23 in advance rivet clasp in terminal fixed head 22, the end face of cap 2 then is provided with the hole 21 corresponding to this two-terminal 23, then this two-terminal 23 is passed hole 21 from cap 2 inboards, utilize welding again, screw locking or any suitable mode such as chimeric are fixed in cap 2 inboards with terminal fixed head 22, and then in regular turn a buffering spacer 25 and a backstop plug 26 are inserted in the cap 2, terminal fixed head 22 is pulled between buffer gasket 25 and cap 2 medial surfaces by folder, and utilize tapping screw 3 to lock backstop plug 26, and then backstop plug 26 is fixed in cap 2 as retaining element; In addition, pass the two-terminal 23 of cap 2 lateral surfaces, then be arranged with pad 24 respectively, close hole 21 and existing slit around the terminal 23 by soft pad 24.

Aforementioned structure is owing to be provided with buffer gasket 25 between backstop plug 26 and terminal fixed head 22, thereby provides terminal 23 preferable buffering effects and more anti-dashing; And the utility model also can dispense this buffer gasket 25, and terminal fixed head 22 is directly pulled between cap 2 medial surfaces and backstop plug 26 by folder, though buffering effect is slightly inferior, but still has the function that stops terminal retraction cap.

Fig. 4 and Fig. 5 then are another embodiment of the present utility model, it has the structure that is same as embodiment shown in Figure 1 haply, the difference of itself and embodiment shown in Figure 1, be that this another figure embodiment can not be provided with buffer gasket between backstop plug 26 and terminal fixed head 22, and after two less buffer gasket 25A are sheathed on the terminal 23 that passes from cap 2 lateral surfaces respectively, again pad 24 is sheathed on terminal, make buffer gasket 25 between pad 24 and cap 2 lateral surfaces, also can reach identical buffering effect.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1. improved light-emitting diode lamp tube cap structure, has a cap, an and terminal fixed head that is combined with two-terminal, this two-terminal passes cap from described cap inboard, make this terminal fixed cap be resisted against this cap inboard, the terminal that is positioned at this cap outside is equipped with pad, it is characterized in that:

One backstop plug is set in the described cap, and this backstop plug is fixed in described cap, this terminal fixed head is pulled between this backstop plug and cap medial surface by folder with a retaining element.

2. improved light-emitting diode lamp tube cap structure according to claim 1 is characterized in that: be provided with a buffer gasket between described backstop plug and the terminal fixed head.

3. improved light-emitting diode lamp tube cap structure according to claim 1 is characterized in that: be provided with a buffer gasket between described cap lateral surface and this pad.

4. improved light-emitting diode lamp tube cap structure according to claim 1, it is characterized in that: described retaining element is a tapping screw.