CN201739850U

CN201739850U - LED lamp

Info

Publication number: CN201739850U
Application number: CN2010202607088U
Authority: CN
Inventors: 凌小虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-16
Filing date: 2010-07-16
Publication date: 2011-02-09
Anticipated expiration: 2020-07-16

Abstract

The utility model discloses a LED lamp, comprising a base and a light penetration cover. The utility model is characterized in that a tube core is disposed between the base and the light penetration cover; an installing hole communicated with the tube core is disposed on the base or on the light penetration cover; the inner and the outer hole diameter of the installing holes are different; the installing hole is filled with elastic sealant; the middle of the elastic sealant is provided with an inserting hole communicated with the tube core; the installing hole is a stepped hole whose outer hole diameter is small and the inner hole diameter is large; the longitudinal section of the installing hole is of a wedge shape with small inner hole diameter and large outer hole diameter; a positioning cavity corresponding to the installing hole is disposed between the base and the light penetration cover; the elastic sealant extends to the positioning cavity. The utility model has advantages of possessing reasonable structure, a little steam and good sealing property; being suitable to use in various situations, especially in situations having requirement on illumination and service life of a lamp; enhancing illumination effect and prolonging service life.

Description

A kind of LED light fixture

Technical field

The utility model relates to a kind of LED light fixture.

Background technology

Along with the appearance of various LED light fixtures, no matter be efficient, or many-side such as stable performance from life-span, illumination, conventional lamp had all had qualitative leap more in the past.Traditional LED light fixture generally comprises base and the diffuser that is tightly connected, and between base and the diffuser tube core is installed, and by to the tube core power supply, can make tube core luminous, and like this, light just can emit by diffuser.Traditional LED light fixture, simple in structure, easy to use, use more and more widely, but in the use of LED light fixture, still exist a lot of insurmountable technical bottlenecks.Because traditional LED airtightness of lamps is relatively poor, airborne moisture can condense into water droplet in lamp housing, attached to the surface of circuit board and cloche, all has been subjected to influence in various degree so the irradiation light efficiency of LED light fixture and circuit wear out.Now a lot of enterprises start with from waterproof sealing merely with solving this difficult problem, what have accomplishes classification of waterproof IP65 or even IP67, but these prevent just that also external rainwater from entering, the thermal change as long as the air in the light fixture is caught a cold, a large amount of steam equally can freeze-out, the final quality that still can't guarantee light fixture is unfavorable for efficient, the permanent work of LED light fixture.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind of rational in infrastructure at above-mentioned deficiency, and it is few to include steam, and the strong a kind of LED light fixture of sealing.

For solving the problems of the technologies described above, this LED light fixture comprises base and the diffuser that is tightly connected, between base and the diffuser tube core is installed, its design feature is: base or diffuser are provided with the installing hole that is communicated with tube core, the inner of installing hole, outer end bore difference, be filled with elastic sealant in the installing hole, the elastic sealant middle part is provided with the plug-in opening that is communicated with tube core.

The LED light fixture of this structure is that to realize including steam few from tightening structure by elasticity, and sealing is strong.

Elasticity mainly comprises the wedge shape installing hole that is arranged on base or the diffuser from tightening structure, is filled with elastic sealant in the installing hole, by being arranged on the plug-in opening at elastic sealant middle part, can vacuumize this LED light fixture inner chamber.After vacuumizing, along with the vacuum tap is slowly extracted in plug-in opening, the rubber-like elastic sealant can shrink to plug-in opening under inner chamber negative pressure and external atmosphere pressure effect.Because installing hole is inner different with the outer end bore, the installing hole bore is got over general goal, and the quantity of elastic sealant is also more and more, its elasticity is also more and more stronger, under same inner chamber suction function, the sealing effectiveness at this place can be better, like this, after the vacuum tap is extracted, elastic sealant has the self-locking sealing function under the inner chamber suction function, can avoid the inner chamber negative pressure to leak, and prevents that effectively outside air from entering the light fixture inner chamber, significantly reduced the moisture of light fixture inner chamber, helped to improve service life.

As a kind of implementation, described installing hole is the big shoulder hole of the little inner bore of outer end bore.

Installing hole is arranged to shoulder hole, can increases effective contact area of elastic sealant and installing hole, help to strengthen the degree that is tightly connected of elastic sealant and installing hole sidewall, make this LED airtightness of lamps stronger.

As another kind of implementation, the vertical section of described installing hole is the wedge shape that inner bore is little, the outer end bore is big.

It is big that the bore of installing hole is arranged to inner little outer end, helps to pour into elastic sealant in installing hole, makes elastic sealant be connected more even with installing hole, helps to strengthen this LED airtightness of lamps.

As improvement, be provided with the positioning chamber corresponding between base and the diffuser with position of mounting hole, elastic sealant extends in the positioning chamber.

Between base and diffuser, positioning chamber is set, positioning chamber is communicated with installing hole, can be when filling elastic sealant, pour into elastic sealant in the positioning chamber together, like this, both can increase the quantity of elastic sealant, make vacuumize the back elastic sealant to tighten sealing effectiveness certainly better, played effect again, strengthened the resistance to overturning of elastic sealant the elastic sealant location.

In sum, adopt the LED light fixture of this structure, rational in infrastructure, it is few to include steam, and sealing is strong, is adapted at various illumination occasions and uses, be particluarly suitable for brightness of illumination and have service life the illumination occasion of requirement to use, help to strengthen illuminating effect, increase the service life.

Description of drawings

In conjunction with the accompanying drawings the utility model is described in further details:

Fig. 1 is a structural representation of the present utility model.

Among the figure: 1 is base, and 2 is diffuser, and 3 is tube core, and 4 is installing hole, and 5 is elastic sealant, and 6 is positioning chamber, and 7 is plug-in opening.

The specific embodiment

As shown in Figure 1, this LED light fixture comprises base 1, and base 1 is discoideus, and base 1 top is equipped with tube core 3, and the light-emitting area of tube core 3 is provided with up, and in the present embodiment, the quantity of tube core 3 is four.Sealing is pasted with diffuser 2 on base 1 upper surface, and in the present embodiment, diffuser 2 is a glass plate, and like this, when tube core 3 energisings, the light that tube core 3 sends can be launched by diffuser 2 more.Diffuser 2 right sides are provided with an installing hole 4, big, the little taper shape in lower end on installing hole 4 is.The interface of base 1 and diffuser 2 is provided with a positioning chamber 6, positioning chamber 6 is corresponding with installing hole 4 positions and be communicated as one, be perfused with elastic sealant 5 in positioning chamber 6 and the installing hole 4, elastic sealant 5 middle parts are provided with plug-in opening 7, and plug-in opening 7 is communicated with tube core 3 by the linking slit of base 1 and diffuser 2.When vacuumizing, the vacuum plug is inserted in the plug-in opening 7, after reaching regulation numerical value, the negative pressure value in slit in this LED light fixture stops to vacuumize, and slowly outwards extract the vacuum plug out, at this moment, elastic sealant 5 can shrink to plug-in opening 7 under suction function, the big more place of installing hole 4 bores, the quantity of elastic sealant 5 is many more, elasticity and mobility are also just strong more, and the sealing effectiveness after the contraction is also just good more, need not manually to carry out the secondary seal operation, can effectively reduce the negative pressure loss, help to guarantee this LED airtightness of lamps.

Claims

1. LED light fixture, comprise the base (1) and the diffuser (2) that are tightly connected, between base (1) and the diffuser (2) tube core (3) is installed, it is characterized in that: base (1) or diffuser (2) are provided with the installing hole (4) that is communicated with tube core (3), the inner of installing hole (4), outer end bore difference, be filled with elastic sealant (5) in the installing hole (4), elastic sealant (5) middle part is provided with the plug-in opening (7) that is communicated with tube core (3).

2. LED light fixture as claimed in claim 1 is characterized in that: described installing hole (4) is the big shoulder hole of the little inner bore of outer end bore.

3. LED light fixture as claimed in claim 1 is characterized in that: the vertical section of described installing hole (4) is the wedge shape that inner bore is little, the outer end bore is big.

4. LED light fixture as claimed in claim 3 is characterized in that: be provided with the positioning chamber (6) corresponding with installing hole (4) position between base (1) and the diffuser (2), elastic sealant (5) extends in the positioning chamber (6).