LED light source structure and lamp bead

Abstract

The utility model provides an LED light source structure and a lamp bead, the LED light source structure comprises a support, one surface of the support is recessed inwards to form an accommodating cavity, a blue light source assembly, a green light source assembly and a red light source assembly are arranged in the accommodating cavity, the blue light source assembly comprises a first blue light chip set and a first transparent packaging glue layer covering the first blue light chip set, and the green light source assembly comprises a second blue light chip set and a second transparent packaging glue layer covering the second blue light chip set. The green light source assembly comprises a green light chip set and a second transparent packaging adhesive layer covering the green light chip set. The red light source assembly comprises a second blue light chip set and a red packaging adhesive layer covering the second blue light chip set. The multi-color-temperature adjusting function of a single lamp bead is achieved through the light source assemblies with different optical attributes, then the design difficulty of subsequent intelligent lighting equipment is simplified, the cost is reduced, red light excitation under the high-voltage power supply condition is achieved through combination of the second blue light chip and the red packaging glue layer, and the light emitting efficiency is improved. The situation that red light is excited by single low-voltage power supply is avoided, and the power supply cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, in particular to an LED light source structure and a lamp bead. Background Art

[0002] LED is a type of light-emitting device that can directly convert electrical energy into visible light and radiant energy. It has a series of characteristics such as high luminous efficiency, short luminous response time, pure light color, strong structure, impact resistance, vibration resistance, stable and reliable performance, light weight and small size. At present, it has been widely used in interior decorative lighting, automobiles, graphic displays, TV backlight and other fields.

[0003] In the field of intelligent lighting, white light high-voltage LED drivers use a linear high-voltage power supply solution. However, in the high-voltage power supply solution, the red light chip is restricted by the vertical structure of the chip, and it is impossible to develop a high-voltage red light chip. It needs to be powered by an independent low voltage, which increases the power supply cost. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide an LED light source structure and lamp beads, aiming to solve the technical problem in the prior art that in the white light high-voltage LED, the red light chip is restricted by the vertical structure of the chip and needs to be powered by an independent low voltage, which increases the power supply cost.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an LED light source structure in a first aspect, including a bracket, one side of the bracket is concave to form an accommodating cavity, a blue light source component, a green light source component and a red light source component are arranged in the accommodating cavity, the blue light source component, the green light source component and the red light source component are evenly spaced, the blue light source component includes a first blue light chipset and a first transparent packaging glue layer covering the first blue light chipset, the green light source component includes a green light chipset and a second transparent packaging glue layer covering the green light chipset, the red light source component includes a second blue light chipset and a red packaging glue layer covering the second blue light chipset, the first blue light chipset includes a plurality of first blue light chips connected in series, the green light chipset includes a plurality of green light chips connected in series, and the second blue light chipset includes a plurality of second blue light chips connected in series.

[0006] Compared with the prior art, the beneficial effects of the present invention are as follows: by integrating the blue light source component, the green light source component and the red light source component in the accommodating cavity, the multi-color temperature adjustment function of a single lamp bead can be realized through light source components with different optical properties, thereby simplifying the design difficulty of subsequent intelligent lighting equipment, reducing the volume, and reducing the cost; through the combination of the second blue light chip and the red packaging adhesive layer, the excitation of red light is realized under high-voltage power supply, avoiding the situation of exciting red light with low-voltage power supply alone, and reducing the power supply cost.

[0007] Furthermore, the accommodating cavity includes a first cavity, a second cavity and a third cavity which are evenly spaced, the blue light source assembly is placed in the first cavity, the green light source assembly is placed in the second cavity, and the red light source assembly is placed in the third cavity.

[0008] Furthermore, the bottoms of the first cavity, the second cavity and the third cavity are all provided with a positive electrode area and a negative electrode area, and the blue light source assembly, the green light source assembly and the red light source assembly are respectively connected to the positive electrode area and the negative electrode area.

[0009] Furthermore, the peak wavelength range of the blue light source assembly is 440nm-470nm, the peak wavelength range of the green light source assembly is 520nm-540nm, and the peak wavelength range of the red light source assembly is 610nm-660nm.

[0010] Furthermore, the first blue light chip, the second blue light chip and the green light chip are all bonded to the bottom of the accommodating cavity by a die-bonding adhesive.

[0011] Furthermore, an obtuse angle is formed between the side wall of the first cavity and the bottom of the first cavity.

[0012] In a second aspect, the utility model further provides a lamp bead, comprising the LED light source structure as described in the first aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the LED light source structure in Embodiment 1 of the present utility model at a first viewing angle;

[0014] Figure 2 This is a schematic diagram of the structure of the LED light source structure in Embodiment 1 of the utility model at a second viewing angle;

[0015] Figure 3 This is a schematic diagram of a partially disassembled structure of the LED light source structure in Embodiment 1 of the utility model at a third viewing angle;

[0016] Description of main component symbols:

[0017] 10. Bracket; 110. Accommodating cavity; 111. First cavity; 112. Second cavity; 113. Third cavity; 20. Blue light source assembly; 210. First blue light chip; 220. First transparent packaging adhesive layer; 30. Green light source assembly; 310. Green light chip; 320. Second transparent packaging adhesive layer; 40. Red light source assembly; 410. Second blue light chip; 420. Red packaging adhesive layer; 50. Positive electrode region; 60. Negative electrode region.

[0018] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] See also Figures 1 to 3, Embodiment 1 of the utility model provides an LED light source structure, including a bracket 10. In the present embodiment, the bracket 10 is made of epoxy resin material. One side of the bracket 10 is concave to form a receiving cavity 110. The receiving cavity 110 includes a first cavity 111, a second cavity 112 and a third cavity 113 that are evenly spaced. An obtuse angle is formed between the side wall of the first cavity 111 and the bottom of the first cavity 111, that is, the side wall of the first cavity 111 is inclined. Through the inclined setting, light can be reflected to a certain extent, thereby improving the overall light effect of the LED light source structure. It can be understood that the structure of the second cavity 112 and the second cavity 112 is consistent with the first cavity 111, and will not be repeated here. It should be noted that the cross-sectional shape of the first cavity 111, the second cavity 112 and the third cavity 113 can also be arc-shaped.

[0023] A blue light source assembly 20, a green light source assembly 30 and a red light source assembly 40 are arranged in the accommodating cavity 110. The blue light source assembly 20, the green light source assembly 30 and the red light source assembly 40 are evenly spaced. It can be understood that the blue light source assembly 20 is placed in the first cavity 111, the green light source assembly 30 is placed in the second cavity 112, and the red light source assembly 40 is placed in the third cavity 113.

[0024] The bottom of the first cavity 111, the second cavity 112 and the third cavity 113 are provided with a positive electrode area 50 and a negative electrode area 60, and the positive electrode area 50 and the negative electrode area 60 are located at opposite ends of the first cavity 111, the second cavity 112 and the third cavity 113. The blue light source assembly 20, the green light source assembly 30 and the red light source assembly 40 are respectively connected to the positive electrode area 50 and the negative electrode area 60 to realize the light emitting function of the blue light source assembly 20, the green light source assembly 30 and the red light source assembly 40. By respectively providing the positive electrode area 50 and the negative electrode area 60 in the first cavity 111, the second cavity 112 and the third cavity 113, independent and controllable power supply channels can be established respectively, thereby realizing independent adjustment of the voltage and wavelength of the blue light source assembly 20, the green light source assembly 30 and the red light source assembly 40, thereby ensuring the wide color gamut of the LED light source structure.

[0025] The blue light source assembly 20 includes a first blue light chip 210 group and a first transparent packaging glue layer 220 covering the first blue light chip 210 group. Specifically, the first blue light chip 210 group includes a plurality of first blue light chips 210 connected in series. The first blue light chips 210 located at both ends are respectively connected to the positive electrode area 50 and the negative electrode area 60 in the first cavity 111. After power is supplied, the blue light source assembly 20 excites blue light. The green light source assembly 30 includes a green light chip 310 group and a second transparent packaging glue layer 320 covering the green light chip 310 group. Specifically, the green light chip 310 group includes a plurality of green light chips 310 connected in series. The green light chips 310 located at both ends are respectively connected to the positive electrode area 50 and the negative electrode area 60 in the second cavity 112. After power is supplied, the green light source assembly 30 excites green light. The red light source assembly 40 includes a second blue light chip 410 group and a red encapsulation glue layer 420 covering the second blue light chip 410 group. Specifically, the second blue light chip 410 group includes a plurality of second blue light chips 410 connected in series. The second blue light chips 410 located at both ends are respectively connected to the positive electrode area 50 and the negative electrode area 60 in the third cavity 113. After power is supplied, the red light source assembly 40 excites red light. It can be understood that the first blue light chip 210, the second blue light chip 410 and the green light chip 310 are all bonded to the bottom of the accommodating cavity 110 by die-bonding glue, that is, the first blue light chip 210 is bonded to the bottom of the first cavity 111, the second blue light chip 410 is bonded to the bottom of the third cavity 113, and the green light chip 310 is bonded to the bottom of the second cavity 112.

[0026] Furthermore, the peak wavelength range of the blue light source assembly 20 is 440nm~470nm, the peak wavelength range of the green light source assembly 30 is 520nm~540nm, and the peak wavelength range of the red light source assembly 40 is 610nm~660nm. By controlling the peak wavelengths of the blue light source assembly 20, the green light source assembly 30 and the red light source assembly 40, it can be ensured that the LED light source structure achieves the best color rendering index and ensures the highest light efficiency of white light.

[0027] By integrating the blue light source assembly 20, the green light source assembly 30 and the red light source assembly 40 into the accommodating cavity 110, the multi-color temperature adjustment function of a single lamp bead can be realized through light source assemblies with different optical properties, thereby simplifying the design difficulty of subsequent intelligent lighting equipment, reducing the volume and reducing the cost; through the combination of the second blue light chip 410 and the red encapsulation glue layer 420, the excitation of red light is realized under high-voltage power supply, avoiding the situation of exciting red light with low-voltage power supply alone, and reducing the power supply cost.

[0028] Embodiment 2 of the present invention provides a lamp bead, comprising the LED light source structure as described in the above embodiment 1.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An LED light source structure, characterized in that: The invention comprises a bracket, one side of which is concave to form a containing cavity, a blue light source component, a green light source component and a red light source component are arranged in the containing cavity, the blue light source component, the green light source component and the red light source component are evenly spaced, the blue light source component comprises a first blue light chipset and a first transparent packaging adhesive layer covering the first blue light chipset, the green light source component comprises a green light chipset and a second transparent packaging adhesive layer covering the green light chipset, the red light source component comprises a second blue light chipset and a red packaging adhesive layer covering the second blue light chipset, the first blue light chipset comprises a plurality of first blue light chips connected in series, the green light chipset comprises a plurality of green light chips connected in series, and the second blue light chipset comprises a plurality of second blue light chips connected in series.

2. The LED light source structure according to claim 1, characterized in that: The accommodating cavity includes a first cavity, a second cavity and a third cavity which are evenly spaced. The blue light source assembly is placed in the first cavity, the green light source assembly is placed in the second cavity, and the red light source assembly is placed in the third cavity.

3. The LED light source structure according to claim 2, characterized in that: A positive electrode region and a negative electrode region are disposed at the bottom of the first cavity, the second cavity and the third cavity, and the blue light source assembly, the green light source assembly and the red light source assembly are connected to the positive electrode region and the negative electrode region respectively.

4. The LED light source structure according to claim 1, characterized in that: The peak wavelength range of the blue light source assembly is 440nm-470nm, the peak wavelength range of the green light source assembly is 520nm-540nm, and the peak wavelength range of the red light source assembly is 610nm-660nm.

5. The LED light source structure according to claim 1, characterized in that: The first blue light chip, the second blue light chip and the green light chip are all bonded to the bottom of the accommodating cavity by using a bonding adhesive.

6. The LED light source structure according to claim 2, characterized in that: An obtuse angle is formed between the side wall of the first cavity and the bottom of the first cavity.

7. A lamp bead, characterized in that: It comprises the LED light source structure as claimed in any one of claims 1 to 6.

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