Constant-voltage normal single-color COB (Chip On Board)

Abstract

The utility model relates to the technical field of COB light sources, and particularly discloses a constant-voltage normally-installed single-color COB which comprises a COB substrate, a light source installation groove and a plurality of constant-voltage IC chip installation grooves communicated with the light source installation groove are formed in the COB substrate, a plurality of light-emitting lamp wick sets are arranged on the light source installation groove, and the light-emitting lamp wick sets are arranged on the COB substrate. A constant-voltage IC chip is arranged on the constant-voltage IC chip mounting groove, a light-proof silica gel layer is coated above the constant-voltage IC chip mounting groove, a plurality of power supply bonding pads are arranged at the diagonal positions of the COB substrate, and the constant-voltage IC chip is electrically connected with the light-emitting lamp wick and the power supply bonding pads respectively. According to the utility model, the constant-voltage IC chip is installed by arranging the constant-voltage IC chip installation groove, and the light-shielding silica gel layer is coated above the constant-voltage IC chip installation groove, so that a plurality of grooves are not required to be formed, a lamp wick and a constant-voltage device can be reasonably arranged, the space of the COB substrate is fully utilized, the production efficiency is improved, and the light-shielding effect of the constant-voltage IC chip can be improved; the light shielding effect is good, and the light emitting efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of COB light sources, in particular to a constant voltage positive mounted monochrome COB. Background Art

[0002] COB (i.e. Chip on Board), chip on board packaging, is one of the bare chip mounting technologies. The semiconductor chip is interlocked and mounted on the printed circuit board. The electrical connection between the chip and the substrate is achieved by wire stitching and covered with resin to ensure reliability. COB usually includes a substrate, on which 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 are provided; COB is widely used due to its long life, pollution-free and high light efficiency. The Chinese utility model patent with patent application number 202420352678.5 discloses a constant voltage COB light source device, which is provided with a light source groove and a mounting groove recessed in the surface on the substrate assembly, the light source assembly is located in the light source groove, and the constant current assembly is located in the mounting groove, and the dam ring is arranged in the light source groove, thereby improving the brightness of the COB light source, being able to emit light evenly and optimizing the light emission effect. However, the constant current device installation groove and the light source groove in the existing COB light source device are independent of each other. In the actual production process, multiple grooves need to be opened on the substrate assembly, which is inconvenient to produce and reduces production efficiency. In addition, the surface of the constant current device is only filled with sealing glue, and the light-shielding effect is poor. 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 constant voltage upright monochrome COB is provided to solve the technical problems of the existing COB light source such as inconvenient production and poor light-shielding effect. The constant voltage IC chip is installed by setting a constant voltage IC chip installation groove, and a light-shielding silicone layer is coated above the constant voltage IC chip installation groove. There is no need to open multiple grooves. The wick and the constant voltage device can be reasonably arranged, the COB substrate space can be fully utilized, and the production efficiency can be improved. The light-shielding effect of the constant voltage IC chip can also be improved. The light-shielding effect is good and the light output efficiency is high.

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

[0005] A constant voltage regular monochrome COB comprises a COB substrate, wherein the COB substrate is provided with a light source mounting groove and a plurality of constant voltage IC chip mounting grooves connected to the light source mounting groove, the light source mounting groove is provided with a plurality of light wick groups, the constant voltage IC chip mounting groove is provided with a constant voltage IC chip, a light-proof silicone layer is coated above the constant voltage IC chip mounting groove, a plurality of power pads are provided at the diagonals of the COB substrate, and the constant voltage IC chip is electrically connected to the light wicks and the power pads respectively.

[0006] Preferably, the light emitting wick groups are composed of a plurality of light emitting wicks connected in series in sequence, the light emitting wicks are all upright LED wicks, and the bottom surface of the light source installation groove is a reflective surface.

[0007] Preferably, the constant voltage IC chip mounting groove comprises a left constant voltage IC chip mounting groove and a right constant voltage IC chip mounting groove which are symmetrically arranged on the left and right, and the constant voltage IC chip is arranged on both the left constant voltage IC chip mounting groove and the right constant voltage IC chip mounting groove.

[0008] Preferably, the constant voltage IC chip is connected to a circuit layer via bonding gold wires, and the circuit layer is electrically connected to the light wick group and the power supply pad respectively.

[0009] Preferably, the power pad includes a positive power pad and a negative power pad, the light wick is electrically connected to the positive power pad and a constant voltage IC chip respectively, and the constant voltage IC chip is electrically connected to the negative power pad.

[0010] Preferably, a dam is provided on the COB substrate, the light source mounting groove and the constant voltage IC chip mounting groove are both located in the dam, and a fluorescent glue layer is covered on the dam.

[0011] By adopting the above technical scheme, the utility model provides a constant voltage upright monochrome COB, which has the following beneficial effects: a light source mounting groove and a plurality of constant voltage IC chip mounting grooves connected with the light source mounting groove are arranged on the COB substrate in the constant voltage upright monochrome COB, a plurality of light wick groups are arranged on the light source mounting groove, a constant voltage IC chip is arranged on the constant voltage IC chip mounting groove, a light-proof silicone layer is coated above the constant voltage IC chip mounting groove, a plurality of power pads are arranged at the diagonal portions of the COB substrate, the constant voltage IC chip is electrically connected to the light wick and the power pad respectively, the constant voltage IC chip is installed by setting the constant voltage IC chip mounting groove, and a light-proof silicone layer is coated above the constant voltage IC chip mounting groove, since the light source mounting groove is connected with the constant voltage IC chip mounting groove, there is no need to independently open a plurality of grooves, and production is more convenient, and the wicks and constant voltage devices can be reasonably arranged, the COB substrate space can be fully utilized, and production efficiency can be improved, and the light-proof effect of the constant voltage IC chip can be improved, the light-proof effect is good, and the light output efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0014] In the figure, 1-COB substrate, 2-light source mounting groove, 3-light wick, 4-constant voltage IC chip, 5-light-proof silicone layer, 6-left constant voltage IC chip mounting groove, 7-right constant voltage IC chip mounting groove, 8-circuit layer, 9-positive power pad, 10-negative power pad, 11-dam. DETAILED DESCRIPTION

[0015] 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.

[0016] 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.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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.

[0018] like Figure 1-2As shown, in the structural schematic diagram of the utility model, the constant voltage regular monochrome COB includes a COB substrate 1, a light source mounting groove 2 and a plurality of constant voltage IC chip mounting grooves connected to the light source mounting groove 2 are provided on the COB substrate 1, a plurality of light wick groups are provided on the light source mounting groove 2, a constant voltage IC chip 4 is provided on the constant voltage IC chip mounting groove, a light-proof silicone layer 5 is coated on the top of the constant voltage IC chip mounting groove, and a plurality of power pads are provided at the diagonal of the COB substrate 1, and the constant voltage IC chip 4 is electrically connected to the light wick 3 and the power pads respectively. It can be understood that the COB substrate 1 is arranged in a square shape, and the cross section of the COB substrate 1 is a square, or a rectangle, etc. The light wick 3, the constant voltage IC chip 4 and the power pads are all welded on the COB substrate 1, and the power pads can be used to connect to an external power supply, and the COB substrate 1 can be a PCB circuit board, a mirror aluminum substrate, etc.

[0019] Specifically, the light wick group is composed of a plurality of light wicks 3 connected in series in sequence, and the light wicks 3 are all upright LED wicks. The bottom surface of the light source mounting groove 2 is a reflective surface; the constant voltage IC chip mounting groove includes a left constant voltage IC chip mounting groove 6 and a right constant voltage IC chip mounting groove 7 which are symmetrically arranged on the left and right, and can also be symmetrically arranged on the top and bottom. The left constant voltage IC chip mounting groove 6 and the right constant voltage IC chip mounting groove 7 are both provided with the constant voltage IC chip 4; the constant voltage IC chip 4 is bonded by The gold wire is connected with a circuit layer 8, and the circuit layer 8 is electrically connected to the light wick group and the power pad respectively; the power pad includes a positive power pad 9 and a negative power pad 10, and the light wick 3 is electrically connected to the positive power pad and the constant voltage IC chip 4 respectively, and the constant voltage IC chip 4 is electrically connected to the negative power pad 10; a dam 11 is provided on the COB substrate 1, and the light source installation groove 2 and the constant voltage IC chip installation groove are both located in the dam 11, and the dam 11 is covered with a fluorescent glue layer. It can be understood that the light wick 3 can be a general LED wick, etc., and can have chips of other colors. The above-mentioned constant voltage IC chip 4 can be a general constant voltage device, etc., including a diode, a triode, etc., and the light-proof silicone layer 6 can be black silicone, etc. The above is only for example, and the utility model is not limited.

[0020] It can be understood that the utility model has a reasonable design and a unique structure. The constant-voltage IC chip 4 is installed by setting a constant-voltage IC chip installation groove, and a light-proof silicone layer 5 is coated above the constant-voltage IC chip installation groove. Since the light source installation groove is connected to the constant-voltage IC chip installation groove, there is no need to open multiple grooves independently, which makes production more convenient. It can not only reasonably arrange the wick and constant-voltage devices, make full use of the COB substrate space, and improve production efficiency, but also improve the light-proof effect of the constant-voltage IC chip. The light-proof effect is better and the light output efficiency is higher.

[0021] 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 constant voltage, normal-mounted, monochrome COB, comprising a COB substrate, characterized in that: The COB substrate is provided with a light source mounting groove and a plurality of constant voltage IC chip mounting grooves connected to the light source mounting groove, the light source mounting groove is provided with a plurality of light wick groups, the constant voltage IC chip mounting groove is provided with a constant voltage IC chip, a light-proof silicone layer is coated above the constant voltage IC chip mounting groove, a plurality of power pads are provided at the diagonals of the COB substrate, and the constant voltage IC chip is electrically connected to the light wicks and the power pads, respectively.

2. The constant voltage, normal-mounted, monochrome COB according to claim 1, characterized in that: The light emitting lamp wick groups are composed of a plurality of light emitting lamp wicks connected in series in sequence, the light emitting lamp wicks are all upright LED lamp wicks, and the bottom surface of the light source installation groove is a reflective surface.

3. The constant voltage, normal-mounted, monochrome COB according to claim 1, characterized in that: The constant voltage IC chip mounting groove comprises a left constant voltage IC chip mounting groove and a right constant voltage IC chip mounting groove which are arranged symmetrically on the left and right sides, and the constant voltage IC chip is arranged on both the left constant voltage IC chip mounting groove and the right constant voltage IC chip mounting groove.

4. The constant voltage, normal-mounted, monochrome COB according to claim 3, characterized in that: The constant voltage IC chip is connected to a circuit layer through bonding gold wires, and the circuit layer is electrically connected to the light wick group and the power supply pad respectively.

5. The constant voltage, normal-mounted, monochrome COB according to claim 1, characterized in that: The power pad includes a positive power pad and a negative power pad. The light wick is electrically connected to the positive power pad and a constant voltage IC chip respectively. The constant voltage IC chip is electrically connected to the negative power pad.

6. The constant voltage, normal-mounted, monochrome COB according to claim 1, characterized in that: A dam is arranged on the COB substrate, the light source installation groove and the constant voltage IC chip installation groove are both located in the dam, and a fluorescent glue layer is covered on the dam.

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