Double-color COB with red light and infrared gain

Abstract

The utility model relates to the technical field of COB light sources, and particularly discloses a double-color COB with red light and infrared gains, which comprises a COB substrate, the COB substrate is provided with a power supply positive electrode pad, a warm light negative electrode pad, a cold light negative electrode pad, a plurality of red light chips and blue light chips, the red light chips are sequentially distributed around the blue light chips along the circular edge, and the cold light chips are distributed around the blue light chips along the circular edge. The red light chip is electrically connected with the power supply positive electrode pad and the warm light negative electrode pad, and the blue light chip is electrically connected with the power supply positive electrode pad and the cold light negative electrode pad. According to the utility model, the warm light negative electrode pad and the cold light negative electrode pad are additionally arranged, so that the color temperature is adjusted by adopting two different channels, and meanwhile, the red light chips are sequentially distributed around the blue light chip along the circular edge, so that the double-color light emitting effect can be realized, the red light and infrared gain effects are realized, and the use requirements of users are met.

Description

Technical Field

[0001] The utility model relates to the technical field of COB light sources, in particular to a two-color COB with red light and infrared gain. Background Art

[0002] COB (i.e. Chip on Board), chip on board packaging, COB usually includes an aluminum substrate, on which are provided a light-emitting area, a cold light positive electrode pad, a cold light negative electrode pad, a warm light positive electrode pad, a warm light negative electrode pad and a conductive circuit; COB light sources are widely used due to their long life, pollution-free and high light efficiency. With the continuous improvement of LED light source technology, its application field is becoming more and more extensive, and it is replacing traditional high-pressure sodium lamps and mercury lamp light sources. In recent years, in order to enable the light source to obtain a higher luminous flux output on a smaller light-emitting surface to maximize the optimization of the product structure and cost reduction of lamps, COB multi-chip integrated packaging has emerged and has been applied to commercial lighting, landscape lighting and other fields. After retrieval, the Chinese utility model patent with patent application number CN202222670044.8 discloses a full-spectrum COB light source. By setting a first blue light chipset, a second blue light chipset and a third blue light chipset in different wavelength ranges, it can not only achieve a two-color light-emitting effect, but also emit light of different wavelengths to mix and form different spectra, thereby achieving the full spectrum effect of the COB light source. However, although the existing COB light source can achieve a wider spectrum, its red light chip and blue light chip are staggered, and the color temperature cannot be adjusted through different channels, so the red light gain effect and infrared gain effect cannot be achieved, which makes it difficult to meet user needs. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the above-mentioned defects of the prior art, a dual-color COB with red light and infrared gain is provided. By adding a warm light negative electrode pad and a cold light negative electrode pad, two different channels are used to adjust the color temperature. At the same time, the red light chip is distributed around the blue light chip along the edge of the circle in sequence, which can achieve a dual-color luminous effect and red light and infrared gain effects, thereby meeting user needs.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A two-color COB with red light and infrared gain includes a COB substrate, on which a power positive pad, a warm light negative pad, a cold light negative pad, a plurality of red light chips and a blue light chip are arranged, the red light chips are sequentially distributed along the edge of a circle around the blue light chip, the red light chip is electrically connected to the power positive pad and the warm light negative pad, respectively, and the blue light chip is electrically connected to the power positive pad and the cold light negative pad, respectively.

[0006] Preferably, a blue light chip distribution area is arranged at the center of the COB substrate, and the blue light chips are evenly distributed in the blue light chip distribution area.

[0007] Preferably, a plurality of blue light chip groups are arranged on the blue light chip distribution area, and the blue light chip group is formed by connecting a plurality of blue light chips in series in sequence.

[0008] Preferably, the blue light chipsets are arranged in an inclined distribution from the upper left to the lower right.

[0009] Preferably, the red light chips are welded on the COB substrate in sequence and at equal intervals.

[0010] Preferably, the power positive electrode pad is arranged on the upper left corner of the COB substrate, and the warm light negative electrode pad and the cold light negative electrode pad are symmetrically arranged on the lower right corner of the COB substrate.

[0011] By adopting the above technical scheme, the utility model provides a dual-color COB with red light and infrared gain, which has the following beneficial effects: a power positive pad, a warm light negative pad, a cold light negative pad, a plurality of red light chips and a blue light chip are arranged on the COB substrate in the dual-color COB, and the red light chip is sequentially distributed around the blue light chip along the edge of a circle, and the red light chip is electrically connected to the power positive pad and the warm light negative pad, respectively, and the blue light chip is electrically connected to the power positive pad and the cold light negative pad, respectively. A circuit design in which the red light chip surrounds the blue light chip is adopted, and by adding the warm light negative pad and the cold light negative pad, two different channels are adopted to adjust the color temperature. At the same time, the red light chip is sequentially distributed around the blue light chip along the edge of a circle, which can achieve a dual-color luminescence effect and have red light and infrared gain effects, thereby meeting user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] In the figure, 1-COB substrate, 2-power positive pad, 3-warm light negative pad, 4-cold light negative pad, 5-red light chip, 6-blue light chip, 7-blue light chip distribution area. DETAILED DESCRIPTION

[0014] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0017] like Figure 1 As shown, the two-color COB with red light and infrared gain includes a COB substrate 1, on which a power positive pad 2, a warm light negative pad 3, a cold light negative pad 4, a plurality of red light chips 5 and a blue light chip 6 are arranged. The red light chip 5 is sequentially distributed along the edge of a circle around the blue light chip 6. The red light chip 5 is electrically connected to the power positive pad 2 and the warm light negative pad 3, respectively, and the blue light chip 6 is electrically connected to the power positive pad 2 and the cold light negative pad 4, respectively. It can be understood that the COB substrate 1 can be a general aluminum substrate, etc., the red light chip 4 and the blue light chip 5 can both be general LED chips, etc., and the surfaces of the red light chip 4 and the blue light chip 5 can both be covered with a phosphor glue layer.

[0018] Specifically, a blue light chip distribution area 7 is provided at the center of the COB substrate 1, and the blue light chip 6 is evenly distributed in the blue light chip distribution area 7; a plurality of blue light chip groups are provided on the blue light chip distribution area 7, and the blue light chip group is formed by a plurality of blue light chips 6 connected in series in sequence; the blue light chip groups are tilted and distributed in sequence from the upper left to the lower right; the red light chip 5 is welded on the COB substrate 1 in sequence and at equal intervals; the power positive electrode pad 2 is provided on the upper left corner of the COB substrate 1, and the warm light negative electrode pad 3 and the cold light negative electrode pad 4 are symmetrically provided on the lower right corner of the COB substrate 1. It can be understood that the wavelength range of the above-mentioned blue light chip 6 and the red light chip 5 is 600-800nm. In practical applications, the above-mentioned red light chip 5 or blue light chip 6 with different wavelengths can be combined to achieve different red light gain effects, which is not limited by the present utility model. By arranging a blue light chip 6 at the center of the COB substrate 1 and then arranging a red light chip 5 around the blue light chip 6 to surround it, in actual application, the light spot emitted by the COB light source structure can be made more uniform, the red light gain effect can be stimulated, and the brightness and saturation of the red light can be increased. When applied on a display screen, the realism and color layering of the image can be improved, so that the viewer has a better visual experience; two different color temperature effects can also be adjusted.

[0019] It can be understood that the utility model has a reasonable design and unique structure. By adding a warm light negative electrode pad 3 and a cold light negative electrode pad 4, two different channels are used to adjust the color temperature. At the same time, the red light chip 5 is distributed along the edge of the circle around the blue light chip 6, which can achieve a dual-color luminous effect and red light and infrared gain effects, thereby meeting user needs.

[0020] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A dual-color COB with red light and infrared gain, comprising a COB substrate, characterized in that: The COB substrate is provided with a power positive pad, a warm light negative pad, a cold light negative pad, a plurality of red light chips and a blue light chip. The red light chips are distributed in sequence along the edge of a circle around the blue light chip. The red light chip is electrically connected to the power positive pad and the warm light negative pad, respectively, and the blue light chip is electrically connected to the power positive pad and the cold light negative pad, respectively.

2. The dual-color COB with red light and infrared gain according to claim 1, characterized in that: A blue light chip distribution area is arranged at the center of the COB substrate, and the blue light chips are evenly distributed in the blue light chip distribution area.

3. The dual-color COB with red light and infrared gain according to claim 2, characterized in that: A plurality of blue light chip groups are arranged on the blue light chip distribution area, and the blue light chip group is formed by connecting a plurality of blue light chips in series in sequence.

4. The dual-color COB with red light and infrared gain according to claim 3, characterized in that: The blue light chipsets are arranged in an inclined manner from the upper left to the lower right.

5. The dual-color COB with red light and infrared gain according to claim 1, characterized in that: The red light chips are welded on the COB substrate in sequence and at equal intervals.

6. The dual-color COB with red light and infrared gain according to claim 1, characterized in that: The power positive electrode pad is arranged on the upper left corner of the COB substrate, and the warm light negative electrode pad and the cold light negative electrode pad are arranged symmetrically on the lower right corner of the COB substrate.

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