CN215496779U

CN215496779U - Lead frame capable of improving light flux space density of primary optics of LED lamp bead

Info

Publication number: CN215496779U
Application number: CN202120912043.2U
Authority: CN
Inventors: 翁伟胜
Original assignee: Pulishi Technology Suzhou Industrial Park Co ltd
Current assignee: Pulishi Technology Suzhou Industrial Park Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-01-11
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a lead frame capable of improving the primary optical luminous flux space density of an LED lamp bead, which comprises a lamp cup and a metal reflection lead frame, wherein the metal reflection lead frame is arranged in the lamp cup and is in a concave mirror shape, the metal reflection lead frame is composed of at least two groups of arc-shaped metal sheets, the inner wall of the metal reflection lead frame is provided with a coating with a reflection function, and an LED chip for emitting light is arranged in the metal reflection lead frame.

Description

Lead frame capable of improving light flux space density of primary optics of LED lamp bead

Technical Field

The utility model relates to the technical field of LED lamps, in particular to a lead frame capable of improving the space density of luminous flux of primary optics of an LED lamp bead.

Background

The development of LEDs, from point light sources to line light sources, is now pursuing higher optical quality, and has evolved to the development of surface light sources, which is a future trend, so that the primary optical light-emitting design of LED lamp beads is very important (the spatial density of luminous flux, i.e. luminous intensity: candela mcd), because of the close relationship between the secondary optical lens and the effective extraction and utilization of light energy, the light-emitting angle and energy are maximized, and further the optical efficiency is improved and energy is saved.

In the prior art, the lead frame is formed by combining a plane mirror surface metal support and a white reflection plastic lamp cup, the wall of the lamp is made of white reflection materials, and when the light energy of an LED chip is reflected, the phenomenon of diffuse reflection, namely diffuse reflection, and the phenomenon of primary optical diffusion are presented, and the light-emitting angle is larger, so that the space density of luminous flux is smaller, and the candela value of the luminous intensity is smaller;

after the primary optics and the secondary optics are matched, under the principle of the standard of specification brightness requirement and the law of conservation of energy, the effects of enlarging the diffusion angle and improving the brightness are difficult to realize, and only the quantity of the LED lamp beads is increased or the power of an LED chip is increased, so that the aim of achieving the aim of relatively increasing the cost is achieved, and therefore, the utility model provides the lead frame capable of improving the space density of the luminous flux of the primary optics of the LED lamp beads.

Disclosure of Invention

The utility model provides a lead frame capable of improving the space density of luminous flux of primary optics of an LED lamp bead.

In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a can promote lead frame of luminous flux space density of LED lamp pearl primary optics, includes lamp cup and metallic reflection lead frame, lamp cup internally mounted has the metallic reflection lead frame, the metallic reflection lead frame is concave mirror form, and the metallic reflection lead frame comprises at least two sets of arc sheetmetals, and metallic reflection lead frame inner wall is provided with the cladding material that has the reflection function, and inside is provided with is used for luminous LED chip.

Furthermore, the arc-shaped metal sheets are respectively connected with a positive electrode and a negative electrode.

Furthermore, the inner wall of the metal reflection lead frame is plated with silver or gold to form a plating layer.

Furthermore, the plating layer is formed on the inner wall of the metal reflection lead frame in an electroplating or coating mode.

Further, the lamp cup is made of white or other high-temperature resistant plastic products.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the metal reflection lead frame is arranged into the concave mirror structure, so that the condensation and finish degree improvement effects are achieved, the light energy can be utilized in secondary optical design, the arrangement distance of the LED lamp beads is simpler and more convenient, the number of the lamp beads is reduced, and the purposes of saving energy and reducing cost are achieved.

2. The utility model is realized by using the design that the concave mirror principle is sleeved into the lead frame, changes the advancing direction of the reflected light, and further converges and concentrates the light source energy of the primary optics into a point or a light beam so as to maximize the energy of the point light source and facilitate the extraction and utilization of the energy of the secondary optical lens.

3. The utility model concentrates energy to reduce light loss, improves module effect, saves energy consumption and reduces cost due to the design of the primary optical concave mirror reflecting structure.

Drawings

1-lamp cup, 2-metal reflection lead frame, 3-LED chip, 4-coating.

FIG. 1 is a top view of a lead frame for increasing spatial density of luminous flux of a primary light source of an LED lamp bead according to the present invention;

fig. 2 is a front cross-sectional view of a lead frame capable of increasing the spatial density of luminous flux of primary optics of an LED lamp bead according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

An embodiment according to the utility model is shown in connection with fig. 1 and 2: the utility model provides a can promote lead frame of luminous flux space density of LED lamp pearl primary optics, including lamp cup 1 and metallic

reflection lead frame

2, 1 internally mounted of lamp cup has metallic reflection lead frame 2, metallic reflection lead frame 2 is concave mirror form, metallic reflection lead frame 2 comprises at least two sets of arc sheetmetals, 2 inner walls of metallic reflection lead frame are provided with cladding material 4 that have the reflection function, inside is provided with and is used for luminous LED chip 3, luminous cladding material 4 through 2 inner walls of metallic reflection lead frame of LED chip 3, carry out the specular reflection to the light.

The plurality of arc-shaped metal sheets are respectively connected with a positive electrode and a negative electrode, the LED chip 3 is connected through a positive motor and a negative motor, the LED chip 3 is ensured to be connected with the positive electrode and the negative electrode to be electrified and emit light, the inner wall of the metal reflection lead frame 2 is plated with silver or gold to form a plating layer 4, the plating layer 4 is formed on the inner wall of the metal reflection lead frame 2 in an electroplating or coating mode, mirror reflection is carried out through the silver plating, the reflection effect is improved, the plating layer 4 is formed in an electroplating or coating mode, the method for forming the plating layer 4 is various, a proper mode is selected for use, the lamp cup 1 is made of white or other high-temperature resistant plastic products, and the cost is low.

As an embodiment of the utility model, when in use, the arc-shaped metal sheet is connected with the anode and the cathode of the LED chip 3, the LED chip 3 generates brightness when working, the design that the concave mirror structure is sleeved in the metal reflection lead frame 2 is utilized to change the traveling direction of the reflected light, so that the energy of the primary optical light source is converged and concentrated to maximize the energy of the point light source or the beam light source, the secondary optical lens is convenient for extracting and utilizing the energy of the point light source or the beam light source, the cladding layer 4 on the inner wall of the metal reflection lead frame 2 is used for mirror reflection, the light emitting effect of the primary optical light is more convergent due to the direct reflection of the cladding layer 4, and the light energy is converged into the point light source or the beam light source.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a can promote lead frame of luminous flux space density of LED lamp pearl primary optics, its characterized in that, includes lamp cup (1) and metallic reflection lead frame (2), lamp cup (1) internally mounted has metallic reflection lead frame (2), metallic reflection lead frame (2) are concave mirror form, and metallic reflection lead frame (2) comprise at least two sets of arc sheetmetals, and metallic reflection lead frame (2) inner wall is provided with cladding material (4) that have the reflection function, and inside is provided with and is used for luminous LED chip (3).

2. The lead frame capable of improving the spatial density of the luminous flux of the primary optics of the LED lamp bead according to claim 1, wherein: the arc-shaped metal sheets are respectively connected with the positive electrode and the negative electrode.

3. The lead frame capable of improving the spatial density of the luminous flux of the primary optics of the LED lamp bead according to claim 1, wherein: the inner wall of the metal reflection lead frame (2) is plated with silver or gold to form a plating layer (4).

4. The lead frame capable of improving the spatial density of the luminous flux of the primary optics of the LED lamp bead according to claim 1, wherein: the plating layer (4) is formed on the inner wall of the metal reflection lead frame (2) in an electroplating or coating mode.

5. The lead frame capable of improving the spatial density of the luminous flux of the primary optics of the LED lamp bead according to claim 1, wherein: the lamp cup (1) is made of white or other high-temperature resistant plastic products.