CN210607329U - Durable's lamp pearl structure - Google Patents

Abstract

The utility model discloses a durable lamp bead structure, which comprises a plastic body, a LED chip, a fluorescent layer and a light-transmitting cover, wherein the inner side wall of the light-transmitting cover is provided with a cavity; a lamp cup penetrating through the plastic body is arranged at the center of the plastic body, and the diameter of the lamp cup is not less than 2.1 MM; the lamp bead structure further comprises a pair of copper sheets which cover the back of the plastic body and are electrically connected with the LED chip, the copper sheets are H-shaped, and two ends of the edge of each copper sheet extend out of claw pieces towards the corners of the plastic body. The utility model discloses a lamp pearl structure, the light-emitting is effectual, the thickness of corner seat sets up to 1.0MM, plastic body sound construction, non-deformable, the shape of copper sheet sets up to the H type, the both ends at each copper sheet edge extend the claw piece towards the corner department of the plastic body, the claw piece tightly fixes on the plastic body, joint strength between copper sheet and the plastic body is high, when the lamp pearl structure is fixed on soft base plate, the plastic body shells from the copper sheet and falls and make lamp pearl structural damage, and reasonable in design, sound construction, durable.

Description

Durable's lamp pearl structure

Technical Field

The utility model relates to a LED lighting technology field, in particular to durable's lamp pearl structure.

Background

Smt (surface Mount technology) is an emerging industrial technology in the electronics industry, and its rise and rapid development are a revolution of the electronics assembly industry, which makes the electronics assembly become faster and simpler, and with it, various electronic products are being updated faster and faster, and the integration level is higher and cheaper. An LED (light emitting diode) package refers to a package of an LED chip (light emitting chip), and generally, the package functions to provide sufficient protection for the LED chip, and prevent the LED chip from being failed due to long-term exposure or mechanical damage in the air, so as to improve the stability of the LED chip.

The LED chip is generally packaged in a plastic body through a fluorescent layer, the diameter of a lamp cup in the center of the traditional plastic body is only 1.8MM, a cavity at the lower end of a light-transmitting cover is small, the whole thickness of the light-transmitting cover is thick, and the light-transmitting effect is poor; meanwhile, the thickness of the corner of the plastic body is only 0.7MM, the plastic body is easy to deform, the back of the plastic body is provided with a copper sheet, the copper sheet is fixed on the substrate and is connected with a circuit on the substrate, the traditional copper sheet is in a small square block shape, the contact area of the copper sheet and the plastic body is small, the connection strength is weak, when the lamp bead structure is fixed on the soft substrate, the soft substrate is easy to deform and is not stressed, the plastic body is slightly stressed and can be stripped from the copper sheet to damage the lamp bead structure, the service life is short, and the market popularization is not facilitated.

Therefore, how to realize a lamp bead structure with simple and reasonable structural design, firm structure, difficult deformation, high connection strength and long service life is a technical problem to be solved urgently in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a durable lamp pearl structure, aim at realizing a structural design simple reasonable, sturdy structure, non-deformable, joint strength is high, long service life's lamp pearl structure.

The utility model provides a durable lamp bead structure which can be fixed on a substrate with a circuit, and comprises a plastic body, a LED chip arranged on the plastic body, a fluorescent layer packaged on the LED chip, and a light-transmitting cover covering the LED chip, wherein the inner side wall of the light-transmitting cover is provided with a cavity at the position corresponding to the LED chip; a lamp cup penetrating through the plastic body is arranged at the center of the plastic body, the diameter of the lamp cup is set to be not less than 2.1MM, and the LED chip and the fluorescent layer are packaged in the lamp cup; the lamp bead structure further comprises a pair of copper sheets which cover the back of the plastic body and are electrically connected with the LED chip, the copper sheets are H-shaped, claw pieces extend out of two ends of the edge of each copper sheet towards the corners of the plastic body, and grooves which correspond to the copper sheets in shape and are used for mounting the copper sheets are formed in the back of the plastic body.

Preferably, the groove is provided with a plurality of positioning seats, and the copper sheet is provided with positioning holes for the positioning seats to pass through at the positions corresponding to the positioning seats.

Preferably, the upper end face of the plastic body is provided with an annular cavity for fixing the light-transmitting cover around the lamp cup, and the inner bottom face of the annular cavity is radially provided with anti-skidding grooves at positions corresponding to the light-transmitting cover.

Preferably, the four corners of the upper end surface of the plastic body are provided with corner seats, and the thickness of each corner seat is set to be 1.0 MM.

Preferably, an exhaust gap is arranged between two adjacent corner seats.

Preferably, the bottom in the lamp cup is provided with a support strip which has a supporting effect on the LED chip, and the plastic body, the lamp cup, the support strip, the side corner seat and the positioning seat are arranged into an integrally formed structure.

Compared with the prior art, the utility model discloses a lamp pearl structure has following beneficial effect: the diameter of the lamp cup is much larger than that of the traditional structure, the light emitting surface of the packaged LED chip and the fluorescent layer is wide, the corresponding cavity is enlarged, the thickness of the light-transmitting cover is reduced, and the light emitting effect of the whole lamp bead structure is better; the shaping has annular cavity on the plastic body, there is the corner seat at the shaping of plastic body four corners department promptly, the thickness of corner seat sets up to 1.0MM, thickness is thick, plastic body sound construction, non-deformable, a pair of copper sheet at the plastic body back, the shape of copper sheet sets up to the H type, the area of contact of copper sheet and plastic body is big, the both ends at every copper sheet edge extend the claw piece towards the corner department of plastic body simultaneously, the claw piece tightly fixes on the plastic body, improve the joint strength between copper sheet and the plastic body greatly, when the lamp pearl structural fixation was on soft base plate, the plastic body is peeled off from the copper sheet and is fallen and make lamp pearl structural damage, structural design is simple reasonable, moreover, the steam generator is firm in structure, and is durable.

Drawings

Fig. 1 is a schematic three-dimensional structure of a plastic body in an embodiment of a durable lamp bead structure of the present invention;

fig. 2 is a schematic perspective view of an embodiment of a durable lamp bead structure of the present invention, wherein a light-transmitting cover is not shown;

fig. 3 is a schematic front view of one of the copper sheets in an embodiment of a durable lamp bead structure of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, provide an embodiment of a durable's lamp pearl structure, can fix on the base plate that has the circuit, locate the printing opacity cover on the LED chip including the plastic body 100, install LED chip, the fluorescent layer of encapsulation on the LED chip on the plastic body 100, lid, the printing opacity cover inside wall is equipped with the cavity in the position department of corresponding with the LED chip.

The center of the plastic body 100 is provided with a lamp cup 101 penetrating through the plastic body 100, the bottom of the lamp cup 101 is provided with a support bar 102 having a supporting effect on the LED chip, and the LED chip is fixed on the support bar 102 and encapsulated in the lamp cup 101 through a fluorescent layer. The lamp bead structure further comprises a pair of copper sheets 200 covering the back of the plastic body 100 and electrically connected with the LED chip, the pair of copper sheets 200 are fixed on the back of the plastic body 100 and electrically connected with the LED chip through the lamp cup 101 arranged in a penetrating mode, and the pair of copper sheets 200 comprise a positive copper sheet 200 and a negative copper sheet 200.

In this embodiment, the upper end surface of the plastic body 100 is provided with an annular cavity 104 around the lamp cup 101 for fixing the light-transmitting cover therein, and the inner bottom surface of the annular cavity 104 is provided with anti-slip grooves 105 in a radial shape at positions corresponding to the positions of the light-transmitting cover. The annular concave cavity 104 is formed to form corner seats 106 at four corners of the upper end surface of the plastic body 100, the thickness of the corner seats 106 is set to be 1.0MM, and the plastic body 100 is firm in structure and not prone to deformation. The setting of annular cavity 104 can make the printing opacity cover fix a position fast and install on plastic body 100, improves production packaging efficiency, reduction in production cost, and non-slip groove 105 improves the adhesive force of printing opacity cover on annular cavity 104 greatly, improves the joint strength between printing opacity cover and the plastic body 100, effectively prevents the emergence of the phenomenon of coming unstuck, prolongs the life of lamp pearl structure. And the printing opacity cover is at the fashioned in-process of encapsulating, and anti-skidding recess 105 makes things convenient for gas outgoing, and the bubble is derived along anti-skidding recess 105, avoids printing opacity cover and annular cavity 104 junction to form the bubble and influence the illuminating effect, simple structure, reasonable in design and practicality.

In this embodiment, an air vent gap 107 is disposed between two adjacent corner bases 106, and the air vent gap 107 facilitates air bubble discharge during glue filling and molding of the light-transmitting cover.

In this embodiment, the plastic body 100, the lamp cup 101, the supporting bar 102, the corner seat 106, and the positioning seat 103 are integrally formed.

The utility model discloses the diameter of lamp cup 101 sets up to not less than 2.1MM, and LED chip and fluorescent layer encapsulation are in lamp cup 101, and lamp cup 101 diameter is compared in traditional structure greatly, the LED chip of encapsulation, fluorescent layer, and its light-emitting face is wide, and corresponding cavity grow and printing opacity cover thickness diminishes, and the light-emitting effect of whole lamp pearl structure is better.

In the prior art, the copper sheet 200 on the back of the plastic body 100 is a tiny square block, the contact area between the copper sheet 200 and the plastic body 100 is small, the connection strength is weak, when the lamp bead structure is fixed on the flexible substrate, the plastic body 100 and the flexible substrate are easy to deform, so that the plastic body 100 is peeled off from the copper sheet 200 under slight stress, the lamp bead structure is damaged, and the service life is short. In order to solve the problems of the prior art, a pair of copper sheets 200 of the present invention covers the back of the plastic body 100, the copper sheets 200 have a large contact area with the plastic body 100, the connection strength is high, and at the same time, the back of the plastic body 100 is provided with a groove corresponding to the shape of the copper sheets 200 and for the copper sheets 200 to be mounted therein, the copper sheets 200 are fixed in the groove, and the groove is provided with a plurality of positioning seats 103, the copper sheets 200 are provided with positioning holes 202 for the positioning seats 103 to pass through at positions corresponding to the positioning seats 103, the copper sheets 200 are not displaced and loosened under the multiple limiting action of the positioning seats 103 and the groove, the connection strength is high, and the shape of the copper sheets 200 is set to be H-shaped, two ends of the edge of each copper sheet 200 extend to the corners of the plastic body 100 to form claw sheets 201, the claw sheets 201 are clamped at the corners and tightly fixed on the plastic body 100, the connection strength between the copper sheets, the thickness of corner seat 106 sets up to 1.0MM, thickness is thick, plastic body 100 solid structure, non-deformable, when the lamp pearl structure passes through copper sheet 200 to be fixed on soft base plate, plastic body 100 is firm indeformable, joint strength between copper sheet 200 and the plastic body 100 is high, make plastic body 100 can not peel off from copper sheet 200, avoid damaging the lamp pearl structure because of plastic body 100 separates with copper sheet 200, structural design is simple reasonable, the solid structure, the long service life of lamp pearl structure.

Therefore, the utility model discloses a lamp pearl structure that structural design is simple reasonable, sound construction, non-deformable, joint strength is high, long service life has wide market prospect.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (6)

1. A durable lamp bead structure is fixed on a substrate with a circuit and comprises a plastic body, an LED chip arranged on the plastic body, a fluorescent layer packaged on the LED chip and a light-transmitting cover covering the LED chip, wherein a cavity is arranged on the inner side wall of the light-transmitting cover at a position corresponding to the position of the LED chip; a lamp cup penetrating through the plastic body is arranged at the center of the plastic body, the diameter of the lamp cup is set to be not less than 2.1MM, and the LED chip and the fluorescent layer are packaged in the lamp cup; the lamp bead structure further comprises a pair of copper sheets which cover the back of the plastic body and are electrically connected with the LED chip, the copper sheets are H-shaped, claw pieces extend out of two ends of the edge of each copper sheet towards the corners of the plastic body, and grooves which correspond to the copper sheets in shape and are used for mounting the copper sheets are formed in the back of the plastic body.

2. The lamp bead structure of claim 1, wherein the groove is provided with a plurality of positioning seats, and the copper sheet is provided with positioning holes corresponding to the positioning seats for the positioning seats to pass through.

3. The lamp bead structure of claim 2, wherein the plastic body has an annular cavity surrounding the lamp cup for fixing the light-transmitting cover therein, and the bottom surface of the annular cavity is provided with anti-slip grooves radially at positions corresponding to the light-transmitting cover.

4. The lamp bead structure of claim 3, wherein corner seats are disposed at four corners of the upper end surface of the plastic body, and the thickness of each corner seat is set to be 1.0 MM.

5. The lamp bead structure of claim 4, wherein an exhaust gap is provided between two adjacent corner seats.

6. The lamp bead structure of claim 5, wherein the bottom of the lamp cup is provided with a support strip for supporting the LED chip, and the plastic body, the lamp cup, the support strip, the corner seat and the positioning seat are integrally formed.

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