CN217214746U

CN217214746U - High-power LED lamp bead structure

Info

Publication number: CN217214746U
Application number: CN202221087825.8U
Authority: CN
Inventors: 陈其祥; 于晓明; 王军; 许传奇
Original assignee: Shenzhen Huachuang Chunhui Technology Co ltd
Current assignee: Shenzhen Huachuang Chunhui Technology Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-08-16
Anticipated expiration: 2032-05-07

Abstract

The utility model is suitable for a lamps and lanterns field provides a high-power LED lamp pearl structure, including the support, the support is narrow upper portion wide lower shape, and the up end of support is equipped with the LED chip, and the lower terminal surface of support is equipped with the leg, is equipped with the up end of connecting support and the via hole of leg in the support, is fixed with lens on the support, and lens surround the narrow portion of support and LED chip inside, and the LED chip corresponds the mid point position setting of lens; narrow width under the support, lens can surround the narrow portion and the LED chip of support completely, can influence the LED chip light-emitting when avoiding being connected of lens and support, cause badly, can also satisfy multiple light-emitting angle demand.

Description

High-power LED lamp bead structure

Technical Field

The utility model belongs to the lamps and lanterns field, concretely relates to high-power LED lamp pearl structure.

Background

The structure of the ceramic high-power LED lamp bead is generally divided into two types, one type is that an LED chip is fixed on a planar ceramic support, an electrode and a support welding foot are communicated in a welding wire mode, and then a transparent colloid is covered on the upper end face of the LED chip in a dispensing or Molding mode, so that the LED chip is protected and the closing angle is adjusted; the high-power LED chip usually has large heat productivity, the Molding organic transparent adhesive covers the LED chip, and the transparency of the transparent adhesive is reduced along with the lapse of working time, so that the brightness attenuation of the lamp bead is accelerated. The lamp bead works for a long time, and is easy to cause colloid yellowing, cracking and other abnormalities. The other method is that a metal dam is plated on a ceramic support in an electroplating mode, so that the support forms a bowl shape, a circuit is arranged in the bowl cup, an LED chip is fixed and communicated with a welding leg, and finally a lens is installed on the bowl cup; the lens is blocked on the step inside the box dam, and is fixed through the bonding glue, so that the bonding glue is not well controlled and easily leaks into the bowl cup, the appearance and the reliability are affected, and the step height of the lens is low, so that the lens is easy to fall off when being transversely stressed.

Thus, the prior art has drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a high-power LED lamp pearl structure.

The utility model discloses a realize like this: the utility model provides a high-power LED lamp pearl structure, includes the support, the support is under the narrow shape of width, the up end of support is equipped with the LED chip, the lower terminal surface of support is equipped with the leg, be equipped with in the support and connect the up end of support with the conducting hole of leg, be fixed with lens on the support, lens will the narrow portion of support with the LED chip surrounds inside, the LED chip corresponds the midpoint position setting of lens.

Furthermore, a groove is arranged between the narrow part and the wide part of the bracket, the groove is arranged along the periphery of the narrow part of the bracket, and the lens is connected in the groove.

Furthermore, the groove is in a shape of a right-angle step, and the upper end face of the support is a plane.

Furthermore, the upper end surface of the bracket and the welding leg are both made of metal plating materials.

Further, the LED chip is a vertical structure LED chip.

Furthermore, an insulating isolation strip is arranged on the support, the upper end face of the support is divided into a welding line area and a solid crystal area by the insulating isolation strip, and the LED chip is placed in the solid crystal area and connected with the welding line area through a welding line.

Further, the LED chip is a flip-chip LED chip.

Furthermore, an insulating isolation strip is arranged on the support and divides the upper end face of the support into two equal die bonding areas, and chip electrodes on two sides of the LED chip are respectively arranged on one die bonding area.

Further, the lens is one of a spherical lens, a concave lens or a plane lens.

Furthermore, the support is made of ceramic materials, and the lens is made of transparent ceramic materials.

The utility model provides a pair of high-power LED lamp pearl structure, narrow width under the support, narrow portion and the LED chip of support can be surrounded completely to lens, can influence the LED chip light-emitting when avoiding being connected of lens and support, cause badly, can also satisfy multiple light-emitting angle demand.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention when the lens is a spherical lens or a concave lens.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention when the lens is a planar lens.

Fig. 3 is a top view of the bracket and the insulating isolation strip in an embodiment of the present invention.

Fig. 4 is a side sectional view of the bracket according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of another embodiment when the lens is a spherical lens or a concave lens provided by the present invention.

Fig. 6 is a schematic structural diagram of another embodiment when the lens is a planar lens provided by the present invention.

Fig. 7 is a top view of the bracket and the insulating isolation band in another embodiment of the present invention.

FIG. 8 is a side sectional view of the bracket according to another embodiment of the present invention

The reference numbers illustrate: 1. a support; 11. a groove; 12. a via hole; 2. an LED chip; 3. welding feet; 4. a lens; 5. an insulating isolation tape; 51. a wire bonding area; 52. and a solid crystal region.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Please refer to fig. 1-8, which are illustrations of a high power LED lamp bead structure disclosed in the present invention, comprising a bracket 1, wherein the bracket 1 is made of ceramic material, resistant to current impact and good in heat conductivity. Support 1 is under the narrow shape of width in the top, the up end of support 1 is equipped with LED chip 2, be fixed with lens 4 on the support 1, lens 4 will the narrow part of support 1 with LED chip 2 surrounds inside, makes LED chip 2's illumination light angle is greater than 180, satisfies multiple light-emitting angle demand as far as possible. Specifically, a groove 11 is formed between a narrow portion and a wide portion of the bracket 1, the LED chip 2 is disposed on an upper end surface of the bracket 1, that is, the upper end surface of the narrow portion, and the upper end surface of the bracket 1 is a plane, so that the LED chip 2 can be conveniently mounted and fixed. The recess 11 is along the peripheral a week of 1 narrow part of support sets up, lens 4 connect in the recess 11, preferred, lens 4 through the adhesive with recess 11 realizes fixed connection, promptly the installation face of lens 4 is less than the installation face of LED chip 2 avoids lens 4 with in the support 1 connection process, the adhesive enter into because certain mobility to lens 4 in directly with LED chip 2 contacts, cause LED chip 2's is bad, simultaneously, has also avoided LED chip 2 directly shines the adhesive when luminous for the adhesive deactivation is inefficacy, finally leads to lens 4 with support 1 separates. Further, the groove 11 is specifically in the shape of a right-angled step, as shown in fig. 4 and 8, which is more beneficial for connecting the lens 4 with the bracket 1, so that the lens 4 can be fully contacted with the adhesive and adhered to the bracket 1, and the lens can be used for a long time and has good stability. Furthermore, the lens 4 is made of transparent ceramic material, has high light transmittance, stable physical and chemical properties, high temperature and high humidity resistance and good chemical corrosion resistance, and can effectively support the light emitting operation of the LED chip 2, and the lens 4 is one of a spherical lens, a concave lens or a planar lens, and when the lens 4 is a spherical lens or a concave lens, the positive light emitting angle of the LED chip 2 can be adjusted; when the lens 4 is a planar lens, the light emitting with a large angle of 180 degrees can be realized, and the type of the lens 4 can be selected as required. The LED lamp is characterized in that a welding leg 3 is arranged on the lower end face of the support 1, a through hole 12 for connecting the upper end face of the support 1 with the welding leg 3 is arranged in the support 1, the upper end face of the support 1 and the welding leg 3 are made of metal-plated materials, and are preferably made of copper-plated or gold-plated materials, through the through hole 12, the upper end face and the lower end face of the support 1 are made of conducting connection, the LED chip arranged on the upper end face of the support 1 can be connected with the welding leg 3, and accordingly the follow-up installation of the whole LED lamp bead is facilitated.

Specifically, the LED chip 2 is disposed corresponding to a midpoint of the lens 4. As an example in this scheme: as shown in fig. 1 to 4, the LED chip 2 is a vertical LED chip. The LED lamp holder is characterized in that an insulating isolation belt 5 is arranged on the support 1, the upper end face of the support 1 is divided into a welding line area 51 and a solid crystal area 52 by the insulating isolation belt 5, the LED chip 2 is placed in the solid crystal area 52 and is connected with the welding line area 51 through a welding line, the connection of the LED chip 2 and the welding feet 3 is realized through the welding line area 51, the division of the upper end face function area of the support 1 is realized, the luminous operation of the LED chip 2 is not influenced, and meanwhile the upper end face of the support 1 can be kept clean.

As another example in this scheme: as shown in fig. 5 to 8, the LED chip 2 is a flip-chip LED chip. When light intensity needs to be increased, the support 1 is provided with the insulating isolation belt 5, the insulating isolation belt 5 divides the upper end face of the support 1 into two equal solid crystal areas 52, and the two sides of the LED chip with the flip structure are both provided with a chip electrode, namely the chip electrodes on the two sides of the LED chip 2 are respectively arranged on one solid crystal area 52.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high-power LED lamp pearl structure which characterized in that: including support (1), support (1) is under narrow wide shape, the up end of support (1) is equipped with LED chip (2), the lower terminal surface of support (1) is equipped with leg (3), be equipped with the connection in support (1) the up end of support (1) with via hole (12) of leg (3), be fixed with lens (4) on support (1), lens (4) will the narrow portion of support (1) with LED chip (2) surround inside, LED chip (2) correspond the midpoint position of lens (4) sets up.

2. The high-power LED lamp bead structure of claim 1, wherein: a groove (11) is arranged between the narrow part and the wide part of the bracket (1), the groove (11) is arranged along the periphery of the narrow part of the bracket (1) in a circle, and the lens (4) is connected in the groove (11).

3. The high-power LED lamp bead structure of claim 2, wherein: the groove (11) is in a right-angle step shape, and the upper end face of the support (1) is a plane.

4. The high-power LED lamp bead structure of claim 1, wherein: the upper end face of the bracket (1) and the welding leg (3) are both made of metal-plated materials.

5. The high-power LED lamp bead structure according to claim 1, characterized in that: the LED chip (2) is a vertical structure LED chip.

6. The high-power LED lamp bead structure of claim 5, wherein: the LED chip packaging structure is characterized in that an insulating isolation strip (5) is arranged on the support (1), the upper end face of the support (1) is divided into a welding line area (51) and a die bonding area (52) by the insulating isolation strip (5), and the LED chip (2) is placed in the die bonding area (52) and is connected with the welding line area (51) through a welding line.

7. The high-power LED lamp bead structure of claim 1, wherein: the LED chip (2) is an LED chip with a flip structure.

8. The high-power LED lamp bead structure of claim 7, wherein: the LED chip packaging structure is characterized in that an insulating isolation belt (5) is arranged on the support (1), the upper end face of the support (1) is divided into two equal solid crystal areas (52) by the insulating isolation belt (5), and chip electrodes on two sides of the LED chip (2) are respectively arranged on one solid crystal area (52).

9. The high-power LED lamp bead structure of claim 1, wherein: the lens (4) is one of a spherical lens, a concave lens or a plane lens.

10. The high-power LED lamp bead structure of claim 1, wherein: the support (1) is made of ceramic materials, and the lens (4) is made of transparent ceramic materials.