Double-U-hole three-dimensional light source with heat dissipation structure

Abstract

The utility model relates to the technical field of light source equipment, in particular to a double-U-hole three-dimensional light source with a heat dissipation structure, the light source is composed of a shell base, an LED light source array, a circuit board and a scattering cover, double U-shaped holes are formed in the shell base, and the scattering cover is arranged on a containing cavity in a covering mode to form a light-emitting face. The heat dissipation assembly comprises an aluminum substrate, a heat dissipation glue coating, heat dissipation holes and a heat dissipation fan, the aluminum substrate is arranged in the shell base, the heat dissipation glue coating is arranged between the aluminum substrate and the shell base, the heat dissipation holes are communicated with the outside and the containing cavity, and the heat dissipation fan is arranged in the containing cavity. Through the special structure of the double U-shaped holes and the scattering cover, the light source can provide uniform illumination; due to the design of curvature recesses and side edge recesses of the light-emitting surface, the light uniformity and the stray light suppression effect are optimized. The heat dissipation assembly optimizes the heat dissipation structure and prolongs the service life of the light source; meanwhile, the light source control panel is integrated in the light source, connecting lines between the light source and the light source controller are reduced, cost is reduced, and economic benefits are improved.

Description

Technical Field

[0001] This utility model relates to the field of light source equipment technology, specifically to a dual U-hole three-dimensional light source with a heat dissipation structure. Background Technology

[0002] Currently, most LED arrays used in industrial vision systems for automated equipment employ a flat-panel layout and passive heat dissipation via heat sinks. However, flat-panel layouts struggle to provide effective illumination for complex curved surfaces, failing to meet the requirements of industrial cameras. To address this, those skilled in the art typically employ multiple light sources or increase the LED array power. Adding heat sinks increases the light source thickness, making integration into precision inspection equipment impossible. Using multiple light sources can cause cross-reflection of light on curved metal surfaces, creating glare and affecting inspection accuracy. Increasing the LED array power may lead to uncontrolled heat dissipation, impacting the light source's lifespan.

[0003] Therefore, a new type of three-dimensional light source is urgently needed to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a dual U-hole three-dimensional light source with a heat dissipation structure to solve the problems of providing uniform illumination and effective heat dissipation for industrial visual inspection of complex curved parts.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the dual U-hole three-dimensional light source with a heat dissipation structure of this utility model includes: a light source and a heat dissipation component; wherein,

[0008] The light source is a three-dimensional light source that emits light from one side. The light source includes a housing base, an LED light source array and a circuit board disposed in the accommodating cavity of the housing base, and a diffuser covering the LED light source array. The side of the diffuser away from the LED light source array forms a light-emitting surface. The LED light source array and the circuit board are electrically connected to an external power source through electrical connection lines.

[0009] The outer shell base has a through hole in the middle, and the through hole is formed by two U-shaped structures spliced ​​together with U-shaped openings to form a first double U-shaped hole; the area of ​​the outer shell base surrounding the first double U-shaped hole forms the receiving cavity;

[0010] The scattering cover is disposed on the receiving cavity of the housing base. The scattering cover includes a mounting surface connected to the housing base. The shape of the mounting surface matches the shape of the upper opening of the receiving cavity of the housing base. A second double U-shaped hole matching the first double U-shaped hole is formed in the middle of the scattering cover. The scattering cover protrudes outward on the side facing the light-emitting surface to form a cover structure.

[0011] The heat dissipation component is disposed inside the housing base to dissipate heat from the LED light source array.

[0012] Preferably, the light-emitting surface is composed of two U-shaped structures joined together by U-shaped openings; the portion of each U-shaped structure facing the inner side of the U-shape is a curved recess, and the middle arc-shaped connecting arm and the two U-shaped arms of each U-shaped structure of the light-emitting surface form an arc-shaped recess inward toward the light source at the outer side edges of the U-shape.

[0013] Preferably, the curved concave shape forms an arc surface.

[0014] Preferably, the light-emitting surface has a structure of two U-shaped parts, which are spliced ​​together by the U-shaped openings to form an inward convex fin, so as to form a separation part at the joint of the first double U-shaped hole.

[0015] Preferably, the heat dissipation component includes an aluminum substrate and a heat dissipation adhesive coating, the LED light source array is disposed on the aluminum substrate, and the heat dissipation adhesive coating is disposed between the aluminum substrate and the mounting surface of the housing base.

[0016] Preferably, the aluminum substrate is an aluminum plate whose shape matches the contour of the accommodating cavity, and the LED light source array is arranged in a ring array around the first double U-shaped hole.

[0017] Preferably, the heat dissipation assembly further includes heat dissipation holes disposed on the housing base, the heat dissipation holes being connected to the outside through the receiving cavity of the housing.

[0018] Preferably, the heat dissipation holes are located on the sidewall of the non-light-emitting surface of the housing base.

[0019] Preferably, the heat dissipation assembly further includes a cooling fan, which is disposed within the accommodating cavity. The air outlet position of the cooling fan matches the heat dissipation hole, and the cooling fan is electrically connected to the circuit board via an electrical connection wire.

[0020] (III) Beneficial Effects

[0021] In this utility model, a dual U-hole three-dimensional light source with a heat dissipation structure is designed with a centrally curved concave shape and an inwardly arc-shaped concave side edge light-emitting surface. This allows the light source to better conform to the contour of complex curved surfaces, providing more uniform, sufficient, and appropriately angled illumination. The heat dissipation structure is optimized through a fan, an aluminum substrate, and a heat-dissipating adhesive coating, thereby improving the lifespan of the light source. At the same time, the light source control board is integrated inside the light source, reducing the number of connecting lines between the light source and the light source controller, reducing costs, and improving economic efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a dual U-hole three-dimensional light source with a heat dissipation structure according to the present invention;

[0023] Figure 2 for Figure 1 A three-dimensional schematic diagram of a dual U-hole three-dimensional light source with a heat dissipation structure from another perspective;

[0024] Figure 3 This is a schematic diagram of a dual U-hole stereo light source with a heat dissipation structure according to the present invention.

[0025] Figure 4 for Figure 3 A bottom view schematic diagram of a dual U-hole stereo light source with a heat dissipation structure;

[0026] Figure 5 for Figure 3 A side view of a three-dimensional light source with a dual U-hole heat dissipation structure;

[0027] Figure 6 for Figure 3 Schematic cross-section view along the middle AA;

[0028] Figure 7 for Figure 6 A magnified view of part B in the diagram.

[0029] [Explanation of Labels in the Attached Image]

[0030] 1: Outer shell base; 2: Double U-shaped hole; 20: U-shaped opening; 21: First double U-shaped hole;

[0031] 22: Second double U-shaped hole; 23: Convex fin;

[0032] 3: Scattering shield; 31: U-shaped arm; 32: Curved recess; 33: Arc-shaped connecting arm;

[0033] 34: An arc-shaped depression;

[0034] 4: Heat dissipation holes; 5: Aluminum substrate; 6: LED light source array;

[0035] 7: Cooling fan. Detailed Implementation

[0036] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0038] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] See Figures 1 to 7 The present invention provides a dual U-hole three-dimensional light source with a heat dissipation structure, comprising: a light source and a heat dissipation component; wherein,

[0041] The light source is a three-dimensional light source that emits light from one side. The light source includes a housing base 1, an LED light source array 6 and a circuit board (not shown) disposed in a cavity (not labeled) of the housing base 1, and a diffuser 3 covering the LED light source array 6. The side of the diffuser 3 away from the LED light source array 6 forms a light-emitting surface. The LED light source array 6 and the circuit board are electrically connected to an external power source through electrical connection lines.

[0042] The outer shell base 1 has a through hole in the middle, and the through hole is formed by two U-shaped structures spliced ​​together by U-shaped openings 20 to form a first double U-shaped hole 21; the area of ​​the outer shell base 1 surrounding the first double U-shaped hole 21 forms the receiving cavity;

[0043] The scattering cover 3 is disposed on the receiving cavity of the outer shell base 1. The scattering cover 3 includes a mounting surface connected to the outer shell base 1. The shape of the mounting surface matches the shape of the upper opening of the receiving cavity of the outer shell base 1. A second double U-shaped hole 22 matching the first double U-shaped hole 21 is formed in the middle of the scattering cover 3. The scattering cover 3 protrudes outward on the side facing the light-emitting surface to form a cover structure.

[0044] The heat dissipation component is disposed inside the housing base 1 to dissipate heat from the LED light source array 6.

[0045] The LED light source array 6, housed within the housing base 1, is electrically connected to an external power source via electrical connection lines. The light is scattered by a diffuser 3, whose structure causes the light-emitting surface to detach from the plane. After scattering, the light exits from the three-dimensional curved surface, expanding the illumination angle range. The heat dissipation component dissipates heat outside the housing cavity through its internal structure. The first double U-shaped hole 21 and the second double U-shaped hole 22 increase the contact area between the diffuser 3 and the housing base 1 and the air, thus also serving a heat dissipation function. The first double U-shaped hole 21 and the second double U-shaped hole together form a double U-shaped hole structure that extends throughout the entire three-dimensional light source.

[0046] Specifically, the light-emitting surface is composed of two U-shaped structures joined together by a U-shaped opening 20; the portion of each U-shaped structure facing the inner side of the U-shape has a curved recess 32, and the middle arc-shaped connecting arm 33 and the two U-shaped arms 31 of each U-shaped structure of the light-emitting surface form an arc-shaped recess 34 facing the light source at the outer side edge of the U-shape.

[0047] More specifically, the curved recess 32 forms an arcuate surface shape.

[0048] The concave arc creates centripetal refraction of incident light, increasing the scattering area. The inward concave design of the arc-shaped connecting arm 33 ensures that the light emitted by the LED forms the above diffusion angle after passing through the scattering cover 3. Combined with the side edge concave structure of the U-shaped arms 31 on both sides, it effectively eliminates the phenomenon of light intensity attenuation at the edges.

[0049] Furthermore, the light-emitting surface has two U-shaped structures that are spliced ​​together by the U-shaped openings 20, forming an inwardly convex fin 23 at the splice point, so as to form a separation part at the docking point of the first double U-shaped hole 21.

[0050] The convex fin 23 physically blocks the direct light path on the other side of the light source, preventing cross-interference of light rays between different LEDs at the splicing point. Especially in LED light sources with a ring array distribution, it can effectively suppress glare or spot superposition caused by the overlap of adjacent LED beams.

[0051] Preferably, the heat dissipation component includes an aluminum substrate 5 and a heat dissipation adhesive coating (not shown in the figure), the LED light source array 6 is disposed on the aluminum substrate 5, and the heat dissipation adhesive coating is disposed between the aluminum substrate 5 and the mounting surface of the housing base 1.

[0052] The aluminum substrate 5 has excellent thermal conductivity, which can quickly conduct the heat generated by the LED light source array 6 from the PN junction to the substrate surface. The heat dissipation adhesive coating fills the gap between the aluminum substrate 5 and the housing base 1, eliminates air thermal resistance, improves heat conduction efficiency, and conducts the heat of the aluminum substrate 5 to the housing base 1.

[0053] Furthermore, the aluminum substrate 5 is an aluminum plate whose shape matches the contour of the accommodating cavity, and the LED light source array 6 is arranged in a ring array around the first double U-shaped hole 21. The ring distribution avoids the illumination attenuation problem in the edge area of ​​traditional linear arrays, while the structure of the double U-shaped hole limits the light diffusion range and reduces illumination interference to non-detection areas.

[0054] Specifically, the heat dissipation component also includes heat dissipation holes 4 disposed on the housing base 1, the heat dissipation holes 4 being connected to the outside through the housing cavity.

[0055] Preferably, the heat dissipation holes 4 are located on the sidewall of the non-light-emitting surface of the housing base 1.

[0056] The opposing heat dissipation holes 4 form an air inlet and an exhaust outlet, creating a natural or forced convection (in conjunction with a fan) air circulation path inside the housing base 1. Hot air is exhausted from the heat dissipation holes 4 near the light-emitting area, while cool air flows in from the heat dissipation holes 4 in the non-light-emitting area, significantly improving heat dissipation efficiency.

[0057] Specifically, the heat dissipation component also includes a cooling fan 7, which is disposed in the accommodating cavity. The air outlet position of the cooling fan 7 matches the heat dissipation hole 4, and the cooling fan 7 is electrically connected to the circuit board via an electrical connection wire.

[0058] By setting the airflow direction, the cooling fan 7 at heat dissipation hole 4 is configured as both an intake fan and an exhaust fan. The cooling fan 7 forces airflow to quickly carry the heat generated by the LED out of the housing cavity, forming a directional airflow path in conjunction with the heat dissipation hole 4. Compared to heat dissipation designs that rely solely on natural convection, the heat dissipation efficiency is significantly improved, especially under high-power conditions.

[0059] It should be understood that the above description of the specific embodiments of this utility model is only for illustrating the technical route and features of this utility model, and its purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. However, this utility model is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of this utility model should be covered by the protection scope of this utility model.

Claims

1. A three-dimensional light source with a double U-hole heat dissipation structure, characterized in that, include: Light source and heat dissipation components; among which, The light source is a three-dimensional light source that emits light from one side. The light source includes a housing base, an LED light source array and a circuit board disposed in the accommodating cavity of the housing base, and a diffuser covering the LED light source array. The side of the diffuser away from the LED light source array forms a light-emitting surface. The LED light source array and the circuit board are electrically connected to an external power source through electrical connection lines. The outer shell base has a through hole in the middle, and the through hole is formed by two U-shaped structures spliced ​​together with U-shaped openings to form a first double U-shaped hole; the area of ​​the outer shell base surrounding the first double U-shaped hole forms the receiving cavity; The scattering cover is disposed on the receiving cavity of the housing base. The scattering cover includes a mounting surface connected to the housing base. The shape of the mounting surface matches the shape of the upper opening of the receiving cavity of the housing base. A second double U-shaped hole matching the first double U-shaped hole is formed in the middle of the scattering cover. The scattering cover protrudes outward on the side facing the light-emitting surface to form a cover structure. The heat dissipation component is disposed inside the housing base to dissipate heat from the LED light source array.

2. The dual-U channel light source of claim 1, wherein, The light-emitting surface is composed of two U-shaped structures joined together by a U-shaped opening; the portion of each U-shaped structure facing the inner side of the U-shape is a curved recess, and the middle arc-shaped connecting arm and the two U-shaped arms of each U-shaped structure of the light-emitting surface form an arc-shaped recess inward toward the light source at the outer side edge of the U-shape.

3. The dual-U channel light, as recited in claim 2, wherein, The curved depressions form an arc-shaped surface.

4. The dual-U channel light source of claim 3, wherein, The light-emitting surface has a structure of two U-shaped openings that are joined together to form an inwardly convex fin, which forms a separation part at the junction of the first double U-shaped holes.

5. The dual-U channel light source of claim 1, wherein, The heat dissipation component includes an aluminum substrate and a heat dissipation adhesive coating. The LED light source array is disposed on the aluminum substrate, and the heat dissipation adhesive coating is disposed between the aluminum substrate and the mounting surface of the housing base.

6. The dual U-hole stereo light source as described in claim 5, characterized in that, The aluminum substrate is an aluminum plate whose shape matches the contour of the accommodating cavity, and the LED light source array is arranged in a ring array around the first double U-shaped hole.

7. The dual U-hole stereo light source as described in claim 5, characterized in that, The heat dissipation assembly also includes heat dissipation holes disposed on the housing base, the heat dissipation holes being connected to the outside through the housing cavity.

8. The dual U-hole stereo light source as described in claim 7, characterized in that, The heat dissipation holes are located on the sidewalls of the non-light-emitting surface of the housing base, opposite to each other.

9. The dual U-hole stereo light source as described in claim 7, characterized in that, The heat dissipation assembly also includes a cooling fan, which is disposed within the accommodating cavity. The air outlet position of the cooling fan matches the heat dissipation hole, and the cooling fan is electrically connected to the circuit board via an electrical connection wire.

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