Double-color LED lamp bead

Abstract

The utility model relates to the technical field of lighting lamps, in particular to a double-color LED lamp bead which comprises a patch support, a plurality of white light chips and warm light chips, the white light chips are arranged in a row along a first center line of the patch support, the number of the warm light chips is even, the warm light chips are respectively and symmetrically arranged on two sides of the white light chips, and the number of the white light chips is larger than the number of the warm light chips. The warm light chips are arranged in a row along a second center line of the paster support, and the second center line is perpendicular to the first center line. The warm light chips are symmetrically arranged left and right, so that the light emitting efficiency of the two sides is consistent, warm white light and white light can be uniformly distributed to the greatest extent, and the light emitting consistency and the light uniformity are ensured. And meanwhile, the novel lamp bead adopts a mode of simultaneously coating two different fluorescent glue, the double color temperatures of the lamp bead are simply and efficiently realized, the change among different colors can be realized by matching with a dimming controller, and a lamp bead carrier is provided for realizing intelligent dimming control of a terminal in a later period.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting fixtures, and in particular to a two-color LED lamp bead. Background Art

[0002] LED is the abbreviation of light emitting diode. Its basic structure is a piece of electroluminescent semiconductor material placed on a rack with leads, and then sealed with epoxy resin on all sides to protect the internal core wire.

[0003] Since the beginning of the 21st century, light source technology has developed rapidly, with new technologies and new products constantly being introduced. LED light has become the mainstream of the market, and two-color lamp beads have appeared, which can switch between warm white light and white light, and change between different colors of lamp beads. The manufacturing of two-color lamp beads mainly involves staggered distribution of two-color temperature LED chips on the SMD bracket along the central circumference of the SMD bracket, and then glue is poured on the two-color temperature LED chips to form a hemispherical transparent seal.

[0004] When the above-mentioned SMD lamp beads are used in spotlights and other lamps that reflect through reflective cups or refract through lenses, the light mixing is uneven during two-color lighting, the light spot is not formed, and the light mixing effect still has room for improvement. Utility Model Content

[0005] The purpose of the utility model is to provide a dual-color LED lamp bead to solve the problems in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is to provide a two-color LED lamp bead, including a patch bracket, a white light chip, and a warm light chip. There are multiple white light chips, and the multiple white light chips are arranged in a row along the first center line of the patch bracket. There are an even number of warm light chips, and the warm light chips are symmetrically arranged on both sides of the white light chip. The warm light chips are arranged in a row along the second center line of the patch bracket, and the second center line is perpendicular to the first center line.

[0007] Furthermore, the center of the white light chip is located on the first center line, and the white light chip includes two first chips and two second chips. The first chip is arranged near the center of the patch bracket, and the second chip is arranged near the edge of the patch bracket. The two first chips are symmetrically arranged relative to the second center line, and the two second chips are symmetrically arranged relative to the second center line, and the length direction of the second chip is perpendicular to the length direction of the first chip.

[0008] Furthermore, the length direction of the first chip is parallel to the first center line, and the warm light chips are provided on both sides of the first chip.

[0009] Furthermore, the length direction of the warm light chip is parallel to the first center line, and the center of the warm light chip is located on the second center line.

[0010] Furthermore, the two-color LED lamp bead also includes a bowl cup, which is arranged on the patch bracket and surrounds the white light chip and the warm light chip. The white light chip is coated with a first color temperature fluorescent glue, and the bowl cup is filled with a second color temperature fluorescent glue covering the warm light chip and the first color temperature fluorescent glue.

[0011] Furthermore, the white light chip and the warm light chip are both fixedly connected to the patch bracket by insulating die-bonding adhesive.

[0012] The beneficial effects of the utility model are:

[0013] 1. Multiple white light chips are arranged in a row along the first center line of the patch bracket, the warm light chips are an even number and are symmetrically arranged on both sides of the white light chip, and the warm light chips are arranged in a row along the second center line of the patch bracket, and the second center line is perpendicular to the first center line. The warm light chips are arranged symmetrically on the left and right, which ensures that the light output efficiency on both sides is consistent, and the warm white light and white light can be evenly distributed to the maximum extent, thereby ensuring the consistency and uniformity of the light output.

[0014] 2. This new type of lamp bead adopts the method of simultaneously coating two different fluorescent glues, which can simply and efficiently realize the dual color temperature of the lamp bead. It can realize the change between different colors with the dimming controller, and provide a lamp bead carrier for the terminal to realize intelligent dimming control in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the internal structure of a dual-color LED lamp bead provided in an embodiment of the utility model.

[0017] Description of reference numerals:

[0018] 1. Patch bracket; 11. First center line; 12. Second center line; 2. White light chip; 21. First chip; 22. Second chip; 3. Warm light chip. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] Reference Figure 1 As a dual-color LED lamp bead provided by the embodiment of the utility model, it includes a patch bracket 1, a white light chip 2, and a warm light chip 3. There are multiple white light chips 2, and the multiple white light chips 2 are arranged in a row along the first center line 11 of the patch bracket 1. There are an even number of warm light chips 3, and the warm light chips 3 are symmetrically arranged on both sides of the white light chip 2. The warm light chips 3 are arranged in a row along the second center line 12 of the patch bracket 1, and the second center line 12 is perpendicular to the first center line 11. The warm light chips 3 are arranged symmetrically on the left and right, which ensures that the light output efficiency on both sides is consistent, and the warm white light and white light can be evenly distributed to the maximum extent, thereby ensuring the consistency of light output and the uniformity of light.

[0024] Specifically, the center of the white light chip 2 is located on the first center line 11, and the white light chip 2 includes two first chips 21 and two second chips 22. The first chip 21 is arranged near the center of the patch bracket 1, and the second chip 22 is arranged near the edge of the patch bracket 1. The two first chips 21 are symmetrically arranged relative to the second center line 12, and the two second chips 22 are symmetrically arranged relative to the second center line 12. The length direction of the second chip 22 is perpendicular to the length direction of the first chip 21. The length direction of the first chip 21 is parallel to the first center line 11, and warm light chips 3 are arranged on both sides of the first chip 21. The length direction of the warm light chip 3 is parallel to the first center line 11, and the center of the warm light chip 3 is located on the second center line 12. The above-mentioned chip position layout is adopted, and the structure is reasonable, which further enables the warm white light and the white light to be evenly distributed, thereby ensuring the consistency of the light output and the uniformity of the light.

[0025] Furthermore, the dual-color LED lamp bead also includes a bowl cup, which is arranged on the patch bracket 1 and surrounds the white light chip 2 and the warm light chip 3. The white light chip 2 is coated with a first color temperature fluorescent glue, and the bowl cup is filled with a second color temperature fluorescent glue covering the warm light chip 3 and the first color temperature fluorescent glue. This new type of lamp bead adopts the method of applying two different fluorescent glues at the same time, which simply and efficiently realizes the dual color temperature of the lamp bead. It can realize the change between different colors with the dimming controller, and provide a lamp bead carrier for the terminal to realize intelligent dimming control in the later stage.

[0026] Specifically, in order to be able to accurately control the white light chip 2 and the warm light chip 3 for dimming and color adjustment, a plurality of pads are provided on the patch bracket 1. The white light chip 2 is connected in series or in series-parallel between two of the pads, and the warm light chip 3 is connected in series or in series-parallel between the other two pads. PIN pins are provided on the outer side of the patch bracket 1, which are respectively connected to the plurality of pads. The white light chip 2 and the warm light chip 3 are connected in series or in series-parallel on the pads to achieve similar or equal voltages of the white light chip 2 and the warm light chip 3, which is convenient for controlling dimming and color adjustment. In order to improve the light efficiency performance of the white light chip 2 and the warm light chip 3, and to facilitate the connection between the white light chip 2 and the warm light chip 3 and the pads, the white light chip 2 and the warm light chip 3 are both regular chips, the white light chip 2 is connected in series or in series-parallel between two of the pads through bonding wires, the warm light chip 3 is connected in series or in series-parallel between the other two pads through bonding wires, and the white light chip 2 and the warm light chip 3 are both fixedly connected to the patch bracket 1 through insulating solid crystal glue, so as to facilitate the wire connection of the white light chip 2 and the warm light chip 3. In order to reduce production costs, the patch bracket 1 can be a universal patch bracket 1 with four PIN pins of four pads or six PIN pins of six pads or even multiple PIN pins of multiple pads of other embodiments, which has wider versatility, effectively reduces production material costs, and is also convenient for users to install and use.

[0027] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A two-color LED lamp bead, comprising a patch bracket (1), a white light chip (2), and a warm light chip (3), wherein the white light chip (2) is multiple, characterized in that: The plurality of white light chips (2) are arranged in a row along a first center line (11) of the patch bracket (1); the number of the warm light chips (3) is an even number; the warm light chips (3) are symmetrically arranged on both sides of the white light chip (2); and the warm light chips (3) are arranged in a row along a second center line (12) of the patch bracket (1); the second center line (12) is perpendicular to the first center line (11).

2. The dual-color LED lamp bead as claimed in claim 1, characterized in that: The center of the white light chip (2) is located on the first center line (11); the white light chip (2) comprises two first chips (21) and two second chips (22); the first chip (21) is arranged close to the center of the patch bracket (1); the second chip (22) is arranged close to the edge of the patch bracket (1); the two first chips (21) are arranged symmetrically with respect to the second center line (12); the two second chips (22) are arranged symmetrically with respect to the second center line (12); and the length direction of the second chip (22) is perpendicular to the length direction of the first chip (21).

3. The dual-color LED lamp bead as claimed in claim 2, characterized in that: The length direction of the first chip (21) is parallel to the first center line (11), and the warm light chips (3) are provided on both sides of the first chip (21).

4. The dual-color LED lamp bead as claimed in claim 3, characterized in that: The length direction of the warm light chip (3) is parallel to the first center line (11), and the center of the warm light chip (3) is located on the second center line (12).

5. The dual-color LED lamp bead as claimed in claim 1, characterized in that: It also includes a bowl cup, which is arranged on the patch bracket (1) and surrounds the white light chip (2) and the warm light chip (3), the white light chip (2) is coated with a first color temperature fluorescent glue by dispensing, and the bowl cup is filled with a second color temperature fluorescent glue covering the warm light chip (3) and the first color temperature fluorescent glue.

6. The dual-color LED lamp bead as claimed in claim 1, characterized in that: The white light chip (2) and the warm light chip (3) are both fixedly connected to the patch bracket (1) via insulating die-bonding adhesive.

Images