Heat dissipation device of high-brightness LED (light-emitting diode)

Abstract

The utility model provides a heat dissipation device of a high-brightness LED. The heat dissipation device of the high-brightness LED comprises a heat dissipation fan, a sunflower heat dissipation aluminum piece, a heat dissipation shell, a fastening screw, a lamp bead base, an LED lamp bead, an optical filter pressing piece, an optical filter, a front focusing end cover and a focusing aspheric lens. The focusing aspheric lens is fixed on the center of the front focusing end cover by coating glue on the periphery; the light filter is arranged in a groove of the front focusing end cover, the light filter pressing piece is screwed into a threaded groove of the front focusing end cover through threads, the LED lamp bead is fixed to the lamp bead base through welding, the lamp bead base is fixed to the sunflower heat dissipation aluminum piece through threads, and the sunflower heat dissipation aluminum piece is concentrically assembled and stuffed into the heat dissipation shell. The sunflower heat dissipation aluminum piece rotates to the position corresponding to the heat dissipation shell fixing threaded opening, the sunflower heat dissipation aluminum piece and the heat dissipation shell are fixed through the fastening screws, and the heat dissipation fan is fixed to the outer portion of the heat dissipation shell through the screws and is opposite to the front focusing end cover. The multi-focal-length spot adjusting device is suitable for optimizing the multi-focal-length spot adjusting performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of water body primary productivity detection accessories, and particularly relates to a heat dissipation device for a high-brightness LED. Background Art

[0002] In the field of primary productivity detection in water bodies, white light source is one of the key components, and its performance directly affects the photosynthetic activity under light adaptation conditions and the accuracy and reliability of primary productivity detection results. At present, there are many problems with the common heat dissipation structure of white light source. Some traditional heat dissipation structures are simple in design and have low heat dissipation efficiency, which causes the white light source to have too high a temperature when working for a long time, thereby reducing the luminous efficiency and service life of the light source. In addition, some heat dissipation structures are difficult to balance aesthetics and stability while ensuring the heat dissipation function. For example, some heat dissipation devices have a simple appearance and are prone to looseness or excessive noise during operation, affecting the overall user experience and performance of the equipment. Therefore, there is an urgent need for an online primary productivity light source heat dissipation structure that can not only dissipate heat efficiently but also ensure aesthetics and stability. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a heat dissipation device for a high-brightness LED.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A heat dissipation device for a high-brightness LED, comprising a heat dissipation fan, a sunflower heat dissipation aluminum part, a heat dissipation housing, set screws, a lamp bead base, an LED lamp bead, a filter pressing plate, a filter, a front focusing end cap, and a focusing aspheric mirror;

[0006] The focusing aspheric mirror is fixed to the center of the front focusing end cover by coating the periphery with glue; the filter is placed in the groove of the front focusing end cover, the filter pressing piece is screwed into the threaded groove of the front focusing end cover through threads, the LED lamp beads are fixed to the lamp bead base by welding, the lamp bead base is fixed to the sunflower heat dissipation aluminum part through threads, the sunflower heat dissipation aluminum part is concentrically assembled and inserted into the heat dissipation shell, the sunflower heat dissipation aluminum part is rotated to a position corresponding to the fixed threaded port of the heat dissipation shell, and the sunflower heat dissipation aluminum part and the heat dissipation shell are fixed by tightening screws, and the cooling fan is fixed to the outside of the heat dissipation shell by screws, opposite to the front focusing end cover.

[0007] Furthermore, the plane of the focusing aspheric mirror is 0.5 mm away from the bottom surface of the filter.

[0008] Furthermore, the depth of the groove of the front focusing end cap for mounting the optical filter is lower than the thickness of the optical filter.

[0009] Furthermore, the size of the sunflower heat dissipation aluminum component is Ø28mm×20mm; Ø represents the outer diameter of the sunflower heat dissipation aluminum component.

[0010] Furthermore, the cooling fan is a square fan with a size of 25 mm×25 mm×12 mm.

[0011] Furthermore, the power of the LED lamp bead is 3W.

[0012] Furthermore, the heat dissipation housing has multiple layers of cutting notches.

[0013] Furthermore, the focusing aspheric lens has a diameter of 9 mm and a focal length of 8 mm. Beneficial effects

[0014] 1. The multi-layer notches of the heat dissipation housing of the present invention are designed in coordination with the fan to achieve orderly airflow and hot air exchange.

[0015] 2. The utility model has a sunflower structure design and is equipped with a multi-layer shell for heat dissipation, which enables the device to work stably;

[0016] 3. The small modular design makes installation, replacement and assembly easy. The detachable optical lens makes light easy to shape and is suitable for multi-focal length spot adjustment and performance optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A half-section assembly diagram of the heat dissipation device for a high-brightness LED of the present invention;

[0018] Figure 2 This is an assembly diagram of the heat dissipation device for a high-brightness LED of the present invention;

[0019] Figure 3 Schematic diagram of the heat dissipation housing;

[0020] Figure 4 This is a simulation diagram of the heat analysis of LED lamp beads working at full load;

[0021] Figure 5 This is a schematic diagram of the cooling fan wind direction flow simulation.

[0022] Among them, the figures are marked as: 1. cooling fan; 2. sunflower cooling aluminum parts; 3. cooling shell; 4. fastening screws; 5. lamp bead base; 6. LED lamp bead; 7. filter pressing plate; 8. filter; 9. front focusing end cover; 10. focusing aspheric mirror; 3-1, cutting notch. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0024] like Figure 1-Figure 3 As shown, the heat dissipation device of the high-brightness LED of the present invention includes a heat dissipation fan 1, a sunflower heat dissipation aluminum part 2, a heat dissipation shell 3, a set screw 4, a lamp bead base 5, an LED lamp bead 6, a filter pressing plate 7, a filter 8, a front focusing end cover 9, and a focusing aspheric mirror 10.

[0025] The focusing aspheric lens 10 is fixed to the center of the front focusing end cap 9 by coating the periphery with glue. During the gluing process, the plane of the focusing aspheric lens 10 is kept at a distance of about 0.5 mm from the bottom surface of the filter 8. The filter 8 is placed in the groove of the front focusing end cap 9. The filter pressing plate 7 is screwed into the threaded groove of the front focusing end cap 9 through a thread. The filter pressing plate 7 is installed concentrically with the filter 8. At the same time, the depth of the groove of the front focusing end cap 9 for installing the filter 8 must be lower than the thickness of the filter 8. The depth of the groove must be lower than the thickness of the filter 8 and is controlled within 0.05 mm to ensure that the filter pressing plate 7 can press the filter 8 and prevent the filter 8 from shaking. The LED lamp bead 6 is fixed to the lamp bead base 5 by welding, and the lamp bead base 5 is fixed to the sunflower heat dissipation aluminum part 2 by threads. The sunflower heat dissipation aluminum part 2 is concentrically assembled and inserted into the heat dissipation shell 3. At the same time, the sunflower heat dissipation aluminum part 2 is rotated to a position corresponding to the fixed threaded port of the heat dissipation shell 3, and the sunflower heat dissipation aluminum part 2 and the heat dissipation shell 3 are fixed by tightening screws 4. The cooling fan 1 is fixed to the outside of the heat dissipation shell 3 by screws, opposite to the front focusing end cover 9.

[0026] Furthermore, the size of the sunflower heat dissipation aluminum part 2 is Ø28mm×20mm; Ø represents its outer diameter.

[0027] Furthermore, the cooling fan 1 is a square fan with a size of 25 mm × 25 mm × 12 mm;

[0028] Furthermore, the power of the LED lamp bead 6 is 3W;

[0029] Furthermore, the heat dissipation housing 3 has multiple layers of cutting notches 3 - 1 to ensure high-quality airflow heat exchange.

[0030] Furthermore, the focusing aspheric lens 10 has a diameter of 9 mm, a focal length of 8 mm, and is made of HK51.

[0031] In order to verify the heat dissipation effect of the structure, a heat dissipation simulation was conducted on the device. The fan blade rotation diameter was set to 18mm, the maximum fan speed was 15000RPM, and the maximum air volume was 0.42cfm. The simulation results are shown in the following figure: Figure 4 As shown in the figure, under normal indoor temperature of 25°C, according to the simulation results, under long-term working conditions, the maximum working temperature of LED lamp bead 6 reaches 32.32°C, and the design results meet the requirements.

[0032] At the same time, the wind direction trajectory simulation is performed on the simulation results, and the simulation results are as follows: Figure 5 As shown in the simulation results, Figure 5 The middle arrow indicates the wind direction trajectory. It can be seen that the wind direction trajectory can achieve circulation, bringing cold air in and hot air out.

Claims

1. A heat dissipation device for a high-brightness LED, characterized in that: Including cooling fan, sunflower cooling aluminum parts, cooling shell, set screws, lamp bead base, LED lamp bead, filter pressing plate, filter, front focusing end cover, focusing aspheric lens; The focusing aspheric mirror is fixed to the center of the front focusing end cover by coating the periphery with glue; the filter is placed in the groove of the front focusing end cover, the filter pressing piece is screwed into the threaded groove of the front focusing end cover through threads, the LED lamp beads are fixed to the lamp bead base by welding, the lamp bead base is fixed to the sunflower heat dissipation aluminum part through threads, the sunflower heat dissipation aluminum part is concentrically assembled and inserted into the heat dissipation shell, the sunflower heat dissipation aluminum part is rotated to a position corresponding to the fixed threaded port of the heat dissipation shell, and the sunflower heat dissipation aluminum part and the heat dissipation shell are fixed by tightening screws, and the cooling fan is fixed to the outside of the heat dissipation shell by screws, opposite to the front focusing end cover.

2. The heat dissipation device for a high-brightness LED according to claim 1, characterized in that: The plane of the focusing aspheric lens is 0.5 mm away from the bottom surface of the filter.

3. The heat dissipation device for a high-brightness LED according to claim 1, characterized in that: The depth of the filter mounting groove of the pre-focusing end cap is lower than the thickness of the filter.

4. The heat dissipation device for a high-brightness LED according to claim 1, characterized in that: The size of the sunflower heat sink aluminum part is Ø28mm×20mm; Ø represents the outer diameter of the sunflower heat sink aluminum part.

5. The heat dissipation device for a high-brightness LED according to claim 1, characterized in that: The cooling fan is a square fan with dimensions of 25 mm × 25 mm × 12 mm.

6. The heat dissipation device for a high-brightness LED according to claim 1, characterized in that: The power of the LED lamp is 3W.

7. The heat dissipation device for a high-brightness LED according to claim 1, characterized in that: The heat dissipation housing has multiple layers of cutting notches.

8. The heat dissipation device for a high-brightness LED according to claim 1, characterized in that: The focusing aspheric lens has a diameter of 9 mm and a focal length of 8 mm.

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