LED lamp panel capable of converting point light source into area light source

Abstract

The utility model relates to the technical field of light-emitting diode (LED) light sources, in particular to an LED lamp panel capable of converting a point light source into an area light source, which comprises a printed circuit board (PCB) substrate, a plurality of cold light lamp bead groups and warm light lamp bead groups are arranged on the PCB substrate, and a first cold light input welding spot, a second cold light input welding spot and a warm light input welding spot are arranged on the PCB substrate. The cold light lamp bead set is electrically connected with the first cold light input welding spot and the second cold light input welding spot, and the warm light lamp bead set is electrically connected with the warm light input welding spot. According to the utility model, the cold light lamp bead groups and the warm light lamp bead groups are arranged on the PCB substrate, and the cold light lamp bead groups and the warm light lamp bead groups are used as light-emitting light sources, so that a point light source can be effectively converted into an area light source, the emitted light is uniform, the light-emitting visual effect is good, and the light-emitting effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of LED light sources, in particular to an LED lamp panel which converts a point light source into a surface light source. Background Art

[0002] LED refers to Light Emitting Diode, which is what we often call light-emitting diode. In layman's terms, it is the carriers injected into the PN junction. After the minority carriers and majority carriers recombine, they release energy in the form of light, thereby realizing electroluminescence. This kind of product and its application are not new, and its application can be seen everywhere in our real life. For example, roadside billboards, various colored indicator lights on household appliances and backlighting on mobile phone keyboards all use LED as light source.

[0003] After searching, the Chinese utility model patent with patent application number CN202321858709.6 discloses a controllable LED light source board, including an aluminum substrate, an LED light source array and an LED driving circuit. The LED light source array and the LED driving circuit are connected through a conductive circuit layer on the aluminum substrate. It is characterized in that the conductive circuit layer is provided with B+ and B- terminals for connecting to the battery, and S+ and S- terminals for connecting to the photovoltaic circuit. The LED driving circuit includes an integrated management chip U1, a switch tube Q1, a battery voltage input circuit connected to the B+ terminal, a photovoltaic voltage input circuit connected to the S+ terminal, a charging switch circuit for connecting or disconnecting the B+ terminal and the S+ terminal, an infrared tube circuit and a multi-segment indicator light circuit. The output ends of the battery voltage input circuit, the photovoltaic voltage input circuit and the infrared tube circuit are respectively connected to the integrated management chip U1, the charging switch circuit and the switch tube Q1 are respectively controlled by the integrated management chip U1 for on / off, and the multi-segment indicator light circuit is used to indicate the currently sampled battery power.

[0004] Another example is a Chinese utility model patent application numbered CN202220677897.1, which discloses an LED light bar structure comprising multiple LED light source assemblies, each of which includes a light bar plate, a current-limiting resistor, and at least two LED light sources. The light bar plates of the multiple light source assemblies are sequentially connected; at least two LED light sources are connected in series with the current-limiting resistor; and the LED light sources of each light source assembly are connected in series. This LED light bar structure incorporates a current-limiting resistor in each group of light source assemblies, maintaining a constant current and ensuring consistent and uniform illumination from each LED light source.

[0005] The above-mentioned existing LED light sources all use a light guide strip structure to achieve a strip-shaped optical visual effect, but in the application of the light guide strip, the light intensity at the light source end is still relatively strong, and the light intensity at the far light source end becomes weaker, which still cannot completely solve the problem of luminous uniformity. Moreover, the luminous visual effect uniformity of the light guide strip is also poor when observed at different angles, resulting in people often seeing a point-like luminous effect and uneven light output, which in turn affects the appearance and visual effect of the product. Utility Model Content

[0006] The technical problem to be solved by the present invention is that, in response to the above-mentioned defects of the prior art, an LED lamp board is provided which converts a point light source into a surface light source. By arranging a plurality of cold light bead groups and warm light bead groups on a PCB substrate and using the cold light bead groups and the warm light bead groups as light sources, the point light source can be effectively converted into a surface light source, so that the light emitted is uniform, the visual effect of the light is good, and the luminous effect is good.

[0007] In order to solve the above technical problems, the technical solution of the utility model is:

[0008] An LED light board that converts a point light source into a surface light source includes a PCB substrate, on which are arranged a plurality of cold light lamp bead groups and a warm light lamp bead group. The PCB substrate is provided with a first cold light input solder point, a second cold light input solder point and a warm light input solder point. The cold light lamp bead group is electrically connected to the first cold light input solder point and the second cold light input solder point, respectively, and the warm light lamp bead group is electrically connected to the warm light input solder point.

[0009] Preferably, the first cold light input solder point, the second cold light input solder point, the warm light input solder point, the cold light lamp bead group and the warm light lamp bead group are all soldered on the PCB substrate.

[0010] Preferably, the first cold light input solder point includes a first positive cold light input solder point and a first negative cold light input solder point, the second cold light input solder point includes a second positive cold light input solder point and a second negative cold light input solder point, the cold light lamp bead group includes a first cold light lamp bead group and a second cold light lamp bead group, the first cold light lamp bead group is electrically connected to the first positive cold light input solder point and the first negative cold light input solder point respectively, and the second cold light lamp bead group is electrically connected to the second positive cold light input solder point and the second negative cold light input solder point respectively.

[0011] Preferably, the warm light input solder point includes a positive warm light input solder point and a negative warm light input solder point, and the warm light lamp bead group includes a first warm light lamp bead group, a second warm light lamp bead group and a third warm light lamp bead group connected in series in sequence, and the first warm light lamp bead group is electrically connected to the second warm light lamp bead group and the positive warm light input solder point respectively, and the third warm light lamp bead group is electrically connected to the second warm light lamp bead group and the negative warm light input solder point respectively.

[0012] Preferably, the cold light lamp bead group and the warm light lamp bead group are located on the same straight line, and a plurality of mounting through holes are opened on the PCB substrate.

[0013] Preferably, a first clamping groove and a second clamping groove that are symmetrically arranged on the left and right sides of the PCB substrate are formed.

[0014] By adopting the above technical solution, the utility model provides an LED lamp board that converts a point light source into a surface light source, which has the following beneficial effects: a first cold light input solder point, a second cold light input solder point and a warm light input solder point are provided on the PCB substrate in the LED lamp board, and the cold light lamp bead group is electrically connected to the first cold light input solder point and the second cold light input solder point respectively, and the warm light lamp bead group is electrically connected to the warm light input solder point. By arranging a plurality of cold light lamp bead groups and warm light lamp bead groups on the PCB substrate, and by adopting the cold light lamp bead group and the warm light lamp bead group as the light-emitting light source, the point light source can be effectively converted into a surface light source, the emitted light is uniform, and the light-emitting visual effect is good. In addition, by wiring AC power on the PCB substrate, the internal wiring circuit of the LED light source is optimized and the luminous effect of the LED light source is improved, the length of the wires is reduced, and the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] In the figure, 1-PCB substrate, 2-first positive cold light input solder point, 3-first negative cold light input solder point, 4-second positive cold light input solder point, 5-second negative cold light input solder point, 6-first cold light lamp bead group, 7-second cold light lamp bead group, 8-positive warm light input solder point, 9-negative warm light input solder point, 10-first warm light lamp bead group, 11-second warm light lamp bead group, 12-third warm light lamp bead group, 13-mounting through hole, 14-first snap-in groove, 15-second snap-in groove. DETAILED DESCRIPTION

[0017] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0018] 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 to 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0020] like Figure 1 As shown in the schematic structural diagram of the present invention, the LED light board that converts a point light source into a surface light source includes a PCB substrate 1, on which are disposed a plurality of cold light bead groups and a warm light bead group. The PCB substrate 1 is provided with a first cold light input solder point, a second cold light input solder point, and a warm light input solder point. The cold light bead group is electrically connected to the first cold light input solder point and the second cold light input solder point, respectively, and the warm light bead group is electrically connected to the warm light input solder point. It will be understood that the first cold light input solder point, the second cold light input solder point, the warm light input solder point, the cold light bead group, and the warm light bead group are all soldered to the PCB substrate 1, which can be made of an aluminum PCB substrate, for example.

[0021] Specifically, the first cold light input solder point includes a first positive cold light input solder point 2 and a first negative cold light input solder point 3, the second cold light input solder point includes a second positive cold light input solder point 4 and a second negative cold light input solder point 5, the cold light lamp bead group includes a first cold light lamp bead group 6 and a second cold light lamp bead group 7, the first cold light lamp bead group 6 is electrically connected to the first positive cold light input solder point 2 and the first negative cold light input solder point 3 respectively, the second cold light lamp bead group 7 is electrically connected to the second positive cold light input solder point 4 and the second negative cold light input solder point 5 respectively; the warm light input solder point includes a positive warm light input solder point 8 and a negative warm light input solder point The first warm light bead group 10 is electrically connected to the second warm light bead group 11 and the positive warm light input solder point 8, and the third warm light bead group 12 is electrically connected to the second warm light bead group 11 and the negative warm light input solder point 9; the cold light bead group and the warm light bead group are located on the same straight line, and a plurality of mounting through holes 13 are provided on the PCB substrate 1; the left and right sides of the PCB substrate 1 are provided with a first snap-fit groove 14 and a second snap-fit groove 15 which are symmetrically arranged with each other. It can be understood that the first cold light lamp bead group 6, the second cold light lamp bead group 7, the first warm light lamp bead group 10, the second warm light lamp bead group 11 and the third warm light lamp bead group 12 are all composed of a number of LED lamp beads; by setting the mounting through hole 13, the first snap-fit groove 14 and the second snap-fit groove 15, the installation and use of the PCB substrate are facilitated.

[0022] It can be understood that the utility model has a reasonable design and a unique structure. By arranging a number of cold light lamp bead groups and warm light lamp bead groups on the PCB substrate 1, and by adopting the cold light lamp bead groups and the warm light lamp bead groups as the light source, the point light source can be effectively converted into a surface light source, so that the light emitted is uniform and the light output visual effect is good. In addition, by wiring AC power on the PCB substrate 1 to access the power supply, the internal wire wiring circuit of the LED light source is optimized and the luminous effect of the LED light source is improved, the length of the wires is reduced, and thus the production cost is reduced.

[0023] 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. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. An LED light panel that converts a point light source into a surface light source, characterized by: It includes a PCB substrate, on which are arranged several cold light lamp bead groups and warm light lamp bead groups, and on which are arranged a first cold light input solder point, a second cold light input solder point and a warm light input solder point. The cold light lamp bead groups are electrically connected to the first cold light input solder point and the second cold light input solder point respectively, and the warm light lamp bead group is electrically connected to the warm light input solder point.

2. The LED light panel for converting a point light source into a surface light source according to claim 1, characterized in that: The first cold light input solder point, the second cold light input solder point, the warm light input solder point, the cold light lamp bead group and the warm light lamp bead group are all soldered on the PCB substrate.

3. The LED light panel for converting a point light source into a surface light source according to claim 1, characterized in that: The first cold light input solder point includes a first positive cold light input solder point and a first negative cold light input solder point, the second cold light input solder point includes a second positive cold light input solder point and a second negative cold light input solder point, the cold light lamp bead group includes a first cold light lamp bead group and a second cold light lamp bead group, the first cold light lamp bead group is electrically connected to the first positive cold light input solder point and the first negative cold light input solder point respectively, and the second cold light lamp bead group is electrically connected to the second positive cold light input solder point and the second negative cold light input solder point respectively.

4. The LED light panel for converting a point light source into a surface light source according to claim 1, characterized in that: The warm light input solder point includes a positive warm light input solder point and a negative warm light input solder point, and the warm light lamp bead group includes a first warm light lamp bead group, a second warm light lamp bead group and a third warm light lamp bead group connected in series in sequence. The first warm light lamp bead group is electrically connected to the second warm light lamp bead group and the positive warm light input solder point respectively, and the third warm light lamp bead group is electrically connected to the second warm light lamp bead group and the negative warm light input solder point respectively.

5. The LED light panel for converting a point light source into a surface light source according to claim 1, characterized in that: The cold light lamp bead group and the warm light lamp bead group are both located on the same straight line, and a plurality of mounting through holes are opened on the PCB substrate.

6. The LED light panel for converting a point light source into a surface light source according to claim 1, characterized in that: The left and right sides of the PCB substrate are provided with a first clamping groove and a second clamping groove which are symmetrically arranged with each other.

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