Double-color-temperature European-standard LED street lamp
By using CSP light sources to replace SMD light sources in two-color temperature European standard LED street lights and forming a square light emitting module on an aluminum-based PCB, the problems of large volume and high cost of the two-color temperature street lights in the prior art are solved, and the uniformity and consistency of light mixing are achieved, and the volume of the lamp is significantly reduced.
Patent Information
- Application Number
- CN202421409653.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The existing two-color temperature European standard LED street lights ensure road lighting needs while being large in size and high in cost, making it difficult to achieve uniformity and consistency of light mixing.
The CSP light source is used to replace the traditional SMD light source, and a square light emitting module is formed by tightly welding multiple CSP light sources on the aluminum-based PCB, and the low-color temperature and high-color temperature light sources are arranged in a 1:1 ratio, so that the color temperature variable is achieved by adjusting the current.
The volume of the luminescent module is effectively reduced, the uniformity and consistency of light mixing is achieved, and the volume of the lamp is significantly reduced under the same power.
Smart Images
Figure CN222559895U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a street lamp, in particular to a dual-color temperature street lamp. Background Art
[0002] Existing European standard LED street lights mostly adopt the following structure: the light source is welded on the aluminum-based PCB, and then attached to the lamp housing. One or more 50*50mm standardized lenses are attached to the upper part of the PCB. Different types of lenses with different light distributions are used according to the width of the road, and the entire light-emitting component is sealed with glass and structural parts. In general, European standard LED street lights mostly adopt a flat and streamlined design. Its notable feature is that the lamp housing can be used as the main body of heat dissipation while serving as the shape of the lamp. At the same time, it makes full use of the diversified characteristics of the lens to meet the lighting needs of different roads.
[0003] Most of the existing LED European standard street lamps use SMD light sources, which are generally large in size, with a general size of 3.0mm-5.0mm. Each light source has an independent PC optical lens package to achieve street lamp light distribution. In order to achieve the dual color temperature function, two circuits will be arranged on the aluminum-based PCB, one for the low color temperature light source and the other for the high color temperature light source. The color temperature can be changed by adjusting the current of these two circuits. The disadvantage is that in order to meet the needs of road lighting, under the same power conditions of LED lamps, the street lamps with variable color temperature are relatively large in size and the cost is also relatively high. Utility Model Content
[0004] Purpose of the invention: The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a dual-color temperature European standard LED street lamp that reduces the volume of the light-emitting module, has good uniformity and consistency in light mixing, and can effectively reduce the volume of the lamp under the same power.
[0005] Technical solution: In order to solve the above technical problems, the utility model provides a dual color temperature European standard LED street lamp, which includes a lamp housing, the lamp housing includes an upper cover, a lower cover, and a front cover, an aluminum-based PCB board is arranged in the lamp housing, a plurality of CSP light sources are arranged on the aluminum-based PCB board, and the plurality of CSP light sources form a square light-emitting module, each group of square light-emitting modules includes a low color temperature light source and a high color temperature light source, the number ratio of the low color temperature light source to the high color temperature light source is 1:1, a lens is arranged on one side of the aluminum-based PCB board, and a glass plate is arranged on one side of the lens.
[0006] Furthermore, every four CSP light sources form a square light-emitting module, and each group of square light-emitting modules includes two low color temperature light sources and two high color temperature light sources.
[0007] Furthermore, the upper cover and the lower cover are connected via a lock, and a power supply, a single lamp controller and a lightning arrester are arranged in the lamp housing.
[0008] Furthermore, the low color temperature light source is 1900K, and the high color temperature light source is 5000K.
[0009] Furthermore, the size of the CSP light source is between 1*1mm and 1.7*1.7mm.
[0010] Furthermore, the CSP light source is tightly welded on the aluminum-based PCB board.
[0011] Furthermore, the lens is a PC lens.
[0012] Furthermore, the glass plate is a tempered glass plate.
[0013] Beneficial effects: Compared with the prior art, the utility model has the following significant advantages: the CSP light source in the utility model belongs to a type of SMD light source, which is characterized by a small size, generally about 1*1mm-1.7*1.7mm. By making full use of its small size, multiple CSP light sources are tightly welded on the aluminum-based PCB to form a square light-emitting module to replace the original SMD light source; in the circuit arrangement, two light sources are arranged in a 1:1 ratio: a low color temperature light source (1900K) and a high color temperature light source (5000K). By adjusting the current of the two light sources, a light color with a variable color temperature of 1900K-5000K can be achieved; by taking advantage of the small size of the CSP light source, the CSP light source is integrated into the light-emitting module to reduce the volume of the light-emitting module; by taking advantage of the small size of the CSP light source and cross-arranging CSP light sources of different color temperatures, the uniformity and consistency of mixed light can be achieved; by taking advantage of the high light density of the CSP light source, the volume of the lamp can be effectively reduced under the condition of the same power. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the exploded structure of the utility model;
[0016] Figure 3 It is a schematic diagram of the arrangement of the CSP light source in the utility model;
[0017] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION
[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the utility model describes a dual color temperature European standard LED street lamp, which includes a lamp housing, the lamp housing includes an upper cover 1, a lower cover 2, and a front cover 3, an aluminum-based PCB board 4 is arranged in the lamp housing, a plurality of CSP light sources 5 are tightly welded on the aluminum-based PCB board 4, the size of the CSP light source 5 is between 1*1mm-1.7*1.7mm, every four CSP light sources 5 form a square light-emitting module 6, each group of square light-emitting modules 6 includes two low color temperature light sources and two high color temperature light sources, the low color temperature light source is 1900K, and the high color temperature light source is 5000K, a lens 7 is arranged on one side of the aluminum-based PCB board 4, the lens 7 is a PC lens, a glass plate 8 is arranged on one side of the lens 7, the glass plate 8 is a tempered glass plate, the upper cover 1 and the lower cover 2 are connected by a lock 9, and a power supply 10, a single lamp controller 11 and a lightning arrester 12 are arranged in the lamp housing.
[0020] The CSP light source in the utility model belongs to a type of SMD light source, and is characterized by a small size, generally about 1*1mm-1.7*1.7mm in size. Taking full advantage of its small size, multiple CSP light sources are closely welded on an aluminum-based PCB to form a square light-emitting module to replace the original SMD light source. In the circuit arrangement, two light sources are arranged in a 1:1 ratio: a low color temperature light source (1900K) and a high color temperature light source (5000K). By adjusting the current of the two light sources, a light color with a variable color temperature of 1900K-5000K can be achieved. Taking advantage of the small size of the CSP light source, the CSP light source is integrated into the light-emitting module to reduce the volume of the light-emitting module. The small size of the CSP light source and the cross-arrangement of CSP light sources with different color temperatures are used to achieve uniformity and consistency of mixed light. Taking advantage of the high light density of the CSP light source, the volume of the lamp can be effectively reduced under the condition of the same power.
[0021] The present invention provides a thought and method. There are many methods and ways to implement the technical solution. The above is only the preferred implementation mode of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.
Claims
1. A dual color temperature European standard LED street light, characterized by: The invention comprises a lamp housing, the lamp housing comprising an upper cover (1), a lower cover (2), and a front cover (3); an aluminum-based PCB board (4) is arranged inside the lamp housing; a plurality of CSP light sources (5) are arranged on the aluminum-based PCB board (4); the plurality of CSP light sources (5) form a square light-emitting module (6); each group of square light-emitting modules (6) comprises a low color temperature light source and a high color temperature light source; the ratio of the number of the low color temperature light sources to the number of the high color temperature light sources is 1:1; a lens (7) is arranged on one side of the aluminum-based PCB board (4); and a glass plate (8) is arranged on one side of the lens (7).
2. The dual color temperature European standard LED street light according to claim 1, characterized in that: Every four CSP light sources (5) form a square light-emitting module (6), and each group of square light-emitting modules (6) includes two low color temperature light sources and two high color temperature light sources.
3. The dual color temperature European standard LED street light according to claim 1, characterized in that: The upper cover (1) and the lower cover (2) are connected via a lock (9), and a power supply (10), a single lamp controller (11) and a lightning arrester (12) are arranged in the lamp housing.
4. The dual color temperature European standard LED street light according to claim 1, characterized in that: The low color temperature light source is 1900K, and the high color temperature light source is 5000K.
5. The dual color temperature European standard LED street light according to claim 1, characterized in that: The size of the CSP light source (5) is between 1*1 mm and 1.7*1.7 mm.
6. The dual color temperature European standard LED street light according to claim 1, characterized in that: The CSP light source (5) is tightly welded on the aluminum-based PCB board (4).
7. The dual color temperature European standard LED street light according to claim 1, characterized in that: The lens (7) is a PC lens.
8. The dual color temperature European standard LED street light according to claim 1, characterized in that: The glass plate (8) is a tempered glass plate.