CN213118573U

CN213118573U - LED lamp strip

Info

Publication number: CN213118573U
Application number: CN202021556331.0U
Authority: CN
Inventors: 李心宇
Original assignee: Foshan Paiouni Optoelectronics Technology Co ltd
Current assignee: Foshan Paiouni Optoelectronics Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-05-04
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a LED lamp belt, which comprises a heat dissipation frame, an outer shell, an inner shell and an LED light source, wherein the inner shell and the outer shell are arranged on the heat dissipation frame, and the outer shell is arranged above the inner shell; the inner shell comprises an accommodating cavity arranged along the length direction of the inner shell, a light outlet part is arranged above the accommodating cavity, light blocking parts are arranged on two sides of the accommodating cavity, a plurality of dentate stripes are arranged on the light outlet part, and the LED light source is arranged in the accommodating cavity; the outer shell comprises a light-emitting flat plate, clamping strips and connecting strips, wherein the clamping strips are arranged on two sides of the light-emitting flat plate, and the connecting strips are arranged between the light-emitting flat plate and the clamping strips; a plurality of curved surface bulges are arranged on one side of the light-emitting flat plate back to the LED light source, and a plurality of small holes are arranged on one side of the light-emitting flat plate facing the LED light source; the outer shell and the inner shell are made of light-transmitting materials, and light-blocking materials are coated on the light-blocking parts. The utility model discloses a LED lamp area solves the even problem of leakproofness and light-emitting simultaneously, and simple to operate.

Description

LED lamp strip

Technical Field

The utility model relates to a LED lamp area technical field especially relates to a LED lamp area.

Background

The LED strip is a product in which LEDs are mounted on a strip-shaped FPC (flexible printed circuit) or PCB (printed circuit board), and is named as a strip because the product is shaped like a strip.

When the LED lamp strip is used for indoor decoration, the LED lamp strip is not required to be subjected to wind and rain, so that the LED lamp strip is very simple to install. Take the LED lamp area of rainbow electron production as an example, all paste the self-adhesive 3M double faced adhesive tape behind one's back in every section LED lamp area, can directly tear the sticker on 3M double faced adhesive tape surface during the installation, then fix the lamp area in the place that needs the installation, it is just good to press with the hand.

When the LED lamp area was used for outdoor decoration, drenched owing to stand to blow by wind, if adopt 3M to glue fixed, the time will cause 3M adhesive nature to reduce and cause the LED lamp area to drop for a long time, consequently outdoor installation often adopts the mode that the draw-in groove is fixed.

The existing clamping groove is simple in structure, a certain gap exists between the shell and the clamping groove, and the service life of the LED lamp strip is influenced by erosion of water vapor easily received outdoors for a long time.

In addition, because the length in lamp area is longer, is equipped with a plurality of LED chips along lamp area length direction, and the LED chip directly has certain interval, can produce the bright dark space between two LED chips for lamp area is luminous inhomogeneous.

Disclosure of Invention

The utility model aims to solve the technical problem that a LED lamp area is provided, solve the even problem of leakproofness and light-emitting simultaneously, and simple to operate.

In order to solve the technical problem, the utility model provides a LED lamp belt, which comprises a heat dissipation frame, an outer shell, an inner shell and an LED light source, wherein the inner shell and the outer shell are arranged on the heat dissipation frame, and the outer shell is arranged above the inner shell;

the inner shell comprises an accommodating cavity arranged along the length direction of the inner shell, a light outlet part is arranged above the accommodating cavity, light blocking parts are arranged on two sides of the accommodating cavity, a plurality of dentate stripes are arranged on the light outlet part, and the LED light source is arranged in the accommodating cavity;

the outer shell comprises a light-emitting flat plate, clamping strips and connecting strips, wherein the clamping strips are arranged on two sides of the light-emitting flat plate, and the connecting strips are arranged between the light-emitting flat plate and the clamping strips; a plurality of curved surface bulges are arranged on one side of the light-emitting flat plate back to the LED light source, and a plurality of small holes are arranged on one side of the light-emitting flat plate facing the LED light source;

the outer shell and the inner shell are made of light-transmitting materials, and light-blocking materials are coated on the light-blocking parts.

As an improvement of the above scheme, the LED light source includes a substrate and an LED chip, and the LED chip is disposed on the substrate;

and a third clamping groove is formed in the side wall of the accommodating cavity, and the side edge of the substrate is clamped in the third clamping groove.

As an improvement of the scheme, the inner shell wraps the LED light source through injection molding.

As an improvement of the above scheme, the diameter of the curved protrusion is D, and the distance between the highest points of two adjacent curved protrusions is R, where D is (0.8-1.5) × R.

In a modification of the above, the diameter of the small holes is d, and the distance between adjacent small holes is r, wherein d is (1% to 10%) r.

As an improvement of the above scheme, a containing cavity is arranged in the heat dissipation frame, a heat dissipation flat plate and a plurality of heat dissipation fins are arranged at the bottom of the heat dissipation frame, two first limiting strips and two second limiting strips which are horizontally and symmetrically arranged are arranged in the containing cavity, the second limiting strips are arranged below the first limiting strips, the heat dissipation flat plate is arranged below the containing cavity, and the heat dissipation fins are in a radial shape;

a first clamping groove is formed between the first limiting strip and the second limiting strip, and the outer shell is installed in the first clamping groove;

the inner shell is arranged on the heat dissipation flat plate.

In an improvement of the above aspect, the outer case and the inner case are made of a polyolefin resin, and the polyolefin resin is a polyethylene resin, a polypropylene resin, or a cyclic polyolefin resin.

As an improvement of the above, the refractive index of the inner shell is smaller than the refractive index of the outer shell.

Implement the utility model discloses, following beneficial effect has:

the utility model provides a LED lamp belt, which comprises a heat dissipation frame, an outer shell, an inner shell and an LED light source, wherein the inner shell and the outer shell are arranged on the heat dissipation frame, and the outer shell is arranged above the inner shell; the utility model discloses an interior casing lives LED light source parcel, effectively prevents the entering of steam.

The utility model discloses set up the holding chamber used for placing the LED light source in the inner casing, can not only protect the LED light source effectively like this, still be convenient for install the LED light source in the inner casing; in addition, the light-emitting part provided with a plurality of dentate stripes is arranged above the accommodating cavity, so that the light-emitting uniformity of the lamp strip is effectively improved; the light blocking parts are arranged on two sides of the accommodating cavity, so that the light emitting efficiency of the lamp strip is effectively improved.

The utility model discloses a principle that the dull and stereotyped compound eye radiation light that adopts of light-emitting, every curved surface arch is as a microlens, and a plurality of curved surface archs radiate as a microlens array, in addition, sets up a plurality of apertures through one side at the printing opacity face towards the LED light source, as the ommateum in the middle of the biological compound eye, mutual independence between every aperture makes and passes mutually noninterfere between the light of different apertures. The light that the light-emitting flat board sent the LED light source radiates, improves the luminous efficiency and the homogeneity in lamp area greatly, and then the colour is even, unanimous when the light that makes the lamp area send projects the object, has avoided the lamp area to give out light the time variant colour or the facula appears, makes the lamp area whole more pleasing to the eye.

Drawings

Fig. 1 is a perspective view of the LED strip of the present invention;

fig. 2 is a schematic structural view of the inner shell of the present invention;

fig. 3 is a schematic structural diagram of the outer casing of the present invention;

fig. 4 is a schematic structural view of the heat dissipation frame of the present invention;

fig. 5 is an installation schematic diagram of the LED lamp strip of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

Referring to fig. 1, the utility model provides an LED lamp strip, which comprises a heat dissipation frame 1, an outer shell 2, an inner shell 4 and an LED light source 3, wherein the LED light source 3 is arranged in the inner shell 4, the inner shell 4 and the outer shell 2 are installed on the heat dissipation frame 1, and the outer shell 2 is arranged above the inner shell 4; the outer shell 2 and the inner shell 4 are made of light-transmitting materials, and the refractive index of the inner shell 4 is smaller than that of the outer shell 2.

Referring to fig. 5, the LED light source 3 includes a substrate 31 and LED chips 32, and the LED chips 32 are disposed on the substrate 31. The substrate 31 may be a flexible substrate or a hard substrate, and the LED chips 32 are protruded and arranged in a row on the substrate. The inner shell 4 wraps the LED light source 3 through injection molding so as to prevent water vapor from entering the LED light source 3.

Referring to fig. 2, the inner housing 4 is provided with a receiving cavity 41 along a length direction thereof, and the LED light source 3 is disposed in the receiving cavity 41. The sidewall of the accommodating cavity 41 is provided with a third clamping groove 42, and the side edge of the substrate 31 is clamped in the third clamping groove 42 to fix the substrate 31 in the accommodating cavity 41.

In order to improve the light-emitting efficiency in lamp area, make the luminous more even in lamp area, the top in holding chamber 41 is equipped with light-emitting portion 44, and both sides are equipped with the portion 45 that is in the light, be equipped with many dentate stripes 43 on light-emitting portion 44, the light that the LED light source 3 sent is refracted through dentate stripe 43 for the light-emitting angle of LED light source 3 is wider, rethread shell body 2 mutually supports, reflects, refracts the wide-angle light and the low-angle light that the LED light source 3 sent, makes the light-emitting in lamp area more even, thereby the colour is even when the light that makes the lamp area send is projected on the object, unanimity, has avoided the lamp area to give out light the time variant colour or the. In addition, the light blocking parts 45 arranged on the two sides of the accommodating cavity are coated with light blocking materials, light emitted by the LED light source 3 can only be emitted from the light emitting part 44, and the light emitting efficiency of the LED lamp strip is effectively improved.

Preferably, the light blocking material is Al, Ag, or black paint.

Preferably, the toothed stripe 43 is a straight stripe, and a plurality of straight stripes are arranged in parallel along the length direction of the inner shell 4. Of course, the tooth-like strip 43 may be provided in other shapes than a straight strip, such as an S-shape. In addition, the cross-sectional shape of the tooth-like stripe 43 is triangular, wavy or semicircular, but is not limited thereto.

The utility model is provided with the containing cavity 41 for placing the LED light source 3 in the inner shell 4, thereby not only effectively protecting the LED light source 3, but also facilitating the installation of the LED light source 3 in the inner shell 4; in addition, the light-emitting part 44 provided with a plurality of dentate stripes 43 is arranged above the accommodating cavity 41, so that the light-emitting uniformity of the lamp strip is effectively improved; the light blocking parts 45 are arranged on two sides of the accommodating cavity 41, so that the light emitting efficiency of the lamp strip is effectively improved.

Referring to fig. 3, the outer casing 2 includes a light-emitting plate 21, a clamping strip 22 and a connecting strip 23, the clamping strip 22 is disposed on two sides of the light-emitting plate 21, and the connecting strip 23 is disposed between the light-emitting plate 21 and the clamping strip 22 and used for connecting the light-emitting plate 21 and the clamping strip 22.

The flat board 21 of light-emitting is equipped with a plurality of curved surface archs 211 on the one side of LED light source dorsad, the flat board 21 of light-emitting is equipped with a plurality of apertures 212 towards the one side of LED light source. The utility model discloses a principle that light-emitting flat plate 21 adopted compound eye radiation light, every curved surface arch 211 as a microlens, the protruding 211 of a plurality of curved surfaces radiates light as a microlens array, in addition, sets up a plurality of apertures 212 through one side at the printing opacity face towards the LED light source, as the eyelet in the middle of the biological compound eye, mutual independence between every aperture 212 makes mutually noninterfere between the light that passes different apertures 212. The light that the dull and stereotyped 21 of light-emitting sent the LED light source radiates, improves the luminous efficacy and the homogeneity in lamp area greatly, and then the colour is even, unanimous when the light that makes the lamp area send projects the object, has avoided the lamp area to give out light the time variant colour or the facula appears, makes the lamp area whole more pleasing to the eye.

Specifically, the diameter of each curved protrusion 211 is D, and the distance between the highest points of two adjacent curved protrusions 211 is R, preferably, D is (0.8 to 1.5) × R, and more preferably, D is 0.5 to 5 mm.

Specifically, the diameter of the small hole 212 is d, and the distance between adjacent small holes 212 is r, preferably, d is (1% to 10%) r, and more preferably, d is 0.1 to 0.5 mm.

Preferably, the outer case 2 and the inner case 4 are made of a polyolefin resin, and the polyolefin resin is a polyethylene resin, a polypropylene resin, or a cyclic polyolefin resin.

Referring to fig. 4, the heat dissipation frame 1 is provided with an accommodating cavity 11 inside, a heat dissipation flat plate 15 and a plurality of heat dissipation fins 16 at the bottom, and the heat dissipation fins 16 are radial; two first limiting strips 12 and two second limiting strips 13 which are horizontally and symmetrically arranged are arranged in the accommodating cavity 11, the second limiting strips 13 are arranged below the first limiting strips 12, and first clamping grooves 14 are formed between the first limiting strips 12 and the second limiting strips 13 and used for mounting the outer shell 2; form second fluting 17 between spacing strip 13 of second and the heat dissipation flat plate 15, the heat dissipation flat plate 15 sets up in the below that holds chamber 11, interior casing 4 locates the joint of the dull and stereotyped 15 upper limit of heat dissipation in second draw-in groove 17.

Preferably, the heat dissipation fins 16 extend outward from the heat dissipation plate 15, so that the heat dissipation fins 16 are better contacted with the outside air, and the heat dissipation is more stable.

Dull and stereotyped 15 that dispels the heat is equipped with smooth plane, interior casing 4 laminating is on smooth plane, LED light source 3 can be with heat conduction to the dull and stereotyped 15 that dispels the heat on, guarantee LED light source 3's job stabilization.

In order to increase the heat dissipation speed of the heat dissipation frame 1, the heat dissipation frame 1 is made of a heat conductive metal material. Preferably, the heat dissipation frame 1 is made of an aluminum alloy.

When mounting, referring to fig. 5, the LED light source 3 is placed in the accommodating cavity 41 of the inner housing 4, and the side edge of the substrate 31 is clamped in the third clamping groove 42, so as to mount the LED light source in the inner housing 4; clamping the inner shell 4 in the second clamping groove 17 to install the inner shell 4 on the heat dissipation frame 1; clamping the clamping strip 22 in the first clamping groove 14 so that the outer shell 2 is quickly mounted on the heat dissipation frame 1; the light emitting flat plate 21 is located above the inner housing 4, and light emitted by the LED light source 3 exits the outer housing 2 after passing through the light emitting portion 44 and the light emitting flat plate 21.

The lamp strip of the utility model fixes the light-emitting flat plate 21 through the special first limit strip 12 and the special second limit strip 13, so as to facilitate installation and reduce production cost; fix inner housing 4 through special second spacing strip 13 and heat dissipation flat plate 15, prevent that LED light source 3 from shifting, guarantee LED light source 3's job stabilization, the installation of being convenient for simultaneously, reduction in production cost.

In the present embodiment, the heat dissipation fins 16 are disposed below the LED light source 3 to improve the convection effect of the air around the LED light source 3, so as to improve the heat dissipation performance of the heat dissipation frame 1.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims

1. An LED lamp strip is characterized by comprising a heat dissipation frame, an outer shell, an inner shell and an LED light source, wherein the inner shell and the outer shell are installed on the heat dissipation frame, and the outer shell is arranged above the inner shell;

2. The LED light strip of claim 1, wherein the LED light source comprises a substrate and LED chips disposed on the substrate;

3. The LED light strip of claim 2, wherein the inner housing is injection molded to encapsulate the LED light source.

4. The LED strip according to claim 1, wherein the diameter of the curved protrusion is D, and the distance between the highest points of two adjacent curved protrusions is R, where D ═ R (0.8-1.5) ×.R.

5. The LED light strip according to claim 4, wherein the holes have a diameter d and a distance r between adjacent holes, wherein d is (1-10%) r.

6. The LED lamp strip according to claim 1, wherein the heat-dissipating frame has a receiving cavity therein, a heat-dissipating flat plate and a plurality of heat-dissipating fins are disposed at the bottom thereof, two first position-limiting strips and two second position-limiting strips are disposed in the receiving cavity, the two first position-limiting strips and the two second position-limiting strips are horizontally and symmetrically disposed, the second position-limiting strips are disposed below the first position-limiting strips, the heat-dissipating flat plate is disposed below the receiving cavity, and the heat-dissipating fins are radial;

the inner shell is arranged on the heat dissipation flat plate.

7. The LED light strip according to claim 1, wherein the outer housing and the inner housing are made of a polyolefin-based resin, wherein the polyolefin-based resin is a polyethylene-based resin, a polypropylene-based resin, or a cyclic polyolefin-based resin.

8. The LED light strip of claim 7, wherein the refractive index of the inner housing is less than the refractive index of the outer housing.