A heat dissipation shell and an LED lamp with the same

Abstract

The utility model relates to lighting technical field, especially a kind of heat dissipation shell, including shell, the shell one side is equipped with light source installation area, light source installation area bottom is equipped with the chessboard type heat dissipation structure of integrated molding, the chessboard type heat dissipation structure includes reinforcing rib and dot matrix type protruding portion, multiple intersecting reinforcing ribs are arranged on light source installation area bottom, dot matrix type protruding portion is arranged in the grid defined by each reinforcing rib.The beneficial effects of the utility model are that the device combines the linear heat conduction of reinforcing rib with the surface area heat dissipation of dot matrix type protruding portion by the chessboard type heat dissipation structure of integrated molding, forms the three-dimensional heat dissipation network of efficient cooperation, thereby realizes the qualitative leap of heat dissipation efficiency in closed structure, and simultaneously guarantees the high strength and excellent protective performance of shell.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a heat dissipation housing and an LED lamp having the housing. Background Technology

[0002] Currently, outdoor LED streetlights mainly adopt two structural forms: modular and integrated. Modular luminaires typically use independent light source modules and require heat dissipation holes (such as louvers) in the housing. While this facilitates heat dissipation, it compromises the integrity of the housing, significantly limiting its waterproof and dustproof performance (IP rating) and appearance design. Integrated luminaires directly integrate the light source into a sealed housing. Although this ensures a high level of protection, its heat dissipation relies entirely on the housing itself, presenting greater challenges.

[0003] The mainstream heat dissipation solutions for existing integrated lighting fixtures have obvious defects: First, they simply pile up high thermal conductivity materials (such as thickened aluminum substrates or additional heat dissipation fins) in the light source area. Although this method can improve the heat dissipation capacity to a certain extent, it greatly increases the material and manufacturing costs. Second, they set simple reinforcing ribs such as grids inside the housing. The heat conduction path of this structure is not continuous and the effective heat dissipation area is limited. It is easy to cause heat to accumulate in the core area of ​​the light source, resulting in excessively high LED junction temperature, accelerating light decay, and affecting the life and reliability of the lighting fixture. Utility Model Content

[0004] The purpose of this utility model is to provide a heat dissipation housing and an LED lamp with the housing, which solves the technical problems of existing integrated LED street light protective housings that cannot be vented for heat dissipation, and the low efficiency and high cost of conventional heat dissipation solutions.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a heat dissipation shell, comprising a shell, a light source mounting area on one side of the shell, and an integrally formed checkerboard-style heat dissipation structure on the bottom surface of the light source mounting area. The checkerboard-style heat dissipation structure includes reinforcing ribs and dot-matrix protrusions. Multiple intersecting reinforcing ribs are arranged on the bottom surface of the light source mounting area, and dot-matrix protrusions are arranged within the grid defined by each reinforcing rib. This utility model, through integral die-casting, ensures the structural integrity and density of the shell, eliminating the thermal resistance and leakage risks caused by connection gaps. The integrally formed checkerboard-style heat dissipation structure combines the linear heat conduction of the reinforcing ribs with the surface heat dissipation of the dot-matrix protrusions, forming a highly efficient and synergistic three-dimensional heat dissipation network. This achieves a qualitative leap in heat dissipation efficiency within a closed structure, while ensuring the high strength and excellent protective performance of the shell.

[0006] In a preferred embodiment of the heat dissipation housing of this utility model, the dot-matrix protrusions are multiple columnar, block-shaped, or conical protrusions protruding from the bottom surface of the light source mounting area. The dot-matrix protrusions in this utility model adopt columnar, block, or conical protrusion shapes, which, while being easy to manufacture, maximize the heat dissipation surface area in contact with air, significantly enhancing the heat dissipation effect. Different protrusion shapes provide flexible design options to adapt to different airflow environments and spatial constraints.

[0007] In a preferred embodiment of the heat dissipation housing of this invention, the reinforcing ribs are arranged in a crisscross pattern in the light source mounting area, forming a rectangular or square grid. This invention, by arranging the reinforcing ribs in a crisscross pattern, ensures the most direct and smooth heat conduction path, facilitating rapid heat dissipation from the center to the edges. Furthermore, it provides optimal grid-like structural support for the housing, greatly enhancing its mechanical properties of resistance to deformation and impact.

[0008] In a preferred embodiment of the heat dissipation housing of this invention, the dot-matrix protrusions are evenly distributed within the grid. This invention ensures the uniform diffusion of heat from the reinforcing ribs to the surrounding area by uniformly distributing the dot-matrix protrusions within the grid, avoiding localized hot spots and resulting in a more balanced temperature field distribution throughout the entire light source mounting area, thereby improving the operational stability and lifespan of the LED light source.

[0009] As a preferred embodiment of the heat dissipation housing of this utility model, the housing is made of high thermal conductivity die-cast aluminum alloy.

[0010] In a preferred embodiment of the heat dissipation housing of this utility model, the light source mounting area is a local recessed or planar area on the inner surface of the housing.

[0011] In a preferred embodiment of the heat dissipation housing of this invention, the checkerboard-style heat dissipation structure covers the entire light source mounting area and extends to its surrounding area. This invention, through precise coverage and appropriate extension of the heat dissipation structure to the light source mounting area and its surroundings, achieves focused heat dissipation of the core heat source and rapid heat dissipation to a larger housing, effectively reducing the LED junction temperature.

[0012] The second objective of this invention is to provide an LED lighting fixture with a heat dissipation housing. The technical solution adopted by this invention includes a heat dissipation housing and an LED light source module installed within the light source mounting area. The LED lighting fixture using this heat dissipation housing, while maintaining a high protection rating (IP rating), possesses excellent heat dissipation capabilities and long-term operational reliability, making it particularly suitable for harsh outdoor environments and effectively extending the lifespan of the lighting fixture.

[0013] The beneficial effects of this utility model's heat dissipation housing and LED lamp with the housing are as follows: Through refined structural design, this device further improves heat dissipation uniformity and reliability. The reinforcing ribs adopt a regular grid layout with intersecting vertical and horizontal lines, forming a uniform and smooth heat flow channel and stable support. The dot-matrix protrusions are regularly distributed in the form of pillars, blocks, and cones, greatly increasing the effective heat dissipation area. The heat dissipation structure precisely covers and extends to the light source mounting area and its surroundings, achieving focused heat dissipation and rapid heat dissipation from the heat source. These features work together to effectively reduce the LED junction temperature, improve temperature field uniformity, and enhance the long-term reliability of the product.

[0014] LED lights using this heat sink housing maintain a high protection level and meet the requirements of harsh outdoor environments while also possessing excellent heat dissipation performance and structural durability. This directly brings significant advantages such as delaying light decay, extending service life, and reducing maintenance costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the overall device in this utility model.

[0017] Figure 2 This is a schematic diagram of the light source mounting area structure of the device in this utility model.

[0018] Figure 3 This is a cross-sectional schematic diagram of the light source mounting area of ​​the device in this utility model. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0022] Reference Figure 1-3 This embodiment provides a heat dissipation housing, which is integrally formed using a die-casting process, ensuring the structural integrity and airtightness of the housing 1 and fundamentally eliminating the risk of thermal resistance and leakage caused by connection gaps. The integrally formed checkerboard-style heat dissipation structure 2 creatively combines the linear heat conduction of the reinforcing ribs 21 with the surface heat dissipation of the dot-matrix protrusions 22, forming a highly efficient and synergistic three-dimensional heat dissipation network. This improves heat dissipation efficiency within the closed structure while ensuring the high strength and excellent protective performance of the housing.

[0023] A heat dissipation housing includes a housing 1. One side of the housing 1 is provided with a light source mounting area 11. The bottom surface of the light source mounting area 11 is provided with an integrally formed checkerboard heat dissipation structure 2. The checkerboard heat dissipation structure 2 includes reinforcing ribs 21 and dot matrix protrusions 22. Multiple intersecting reinforcing ribs 21 are provided on the bottom surface of the light source mounting area 11, and dot matrix protrusions 22 are provided within the grid defined by each reinforcing rib 21.

[0024] The heat dissipation shell is integrally formed using a die-casting process.

[0025] Furthermore, the dot matrix protrusions 22 are multiple columnar, block-shaped, or conical protrusions protruding from the bottom surface of the light source mounting area 11. In this embodiment, the dot matrix protrusions 22 are uniformly distributed cylindrical protrusions. In other embodiments, square columns, conical frustums, or other regular block protrusions may also be used.

[0026] Furthermore, the reinforcing ribs 21 are arranged in a crisscross pattern in the light source mounting area 11, forming a rectangular or square grid.

[0027] The main function of the reinforcing rib 21 is as follows: on the one hand, as the main structural support, it greatly enhances the rigidity of the base plate of the light source mounting area 11 and prevents it from deforming due to heat or force; on the other hand, as an efficient heat conduction backbone, it quickly transfers the heat generated by the LED light source module from the center of the mounting area to the edges of the surrounding shell 1.

[0028] Furthermore, the dot-matrix protrusions 22 are evenly distributed in an array within the grid.

[0029] The main function of the dot-matrix protrusions 22 is to greatly increase the actual heat dissipation surface area of ​​the bottom surface of the light source mounting area 11. When heat is conducted to various locations via the reinforcing ribs 21, these dense protrusions can effectively exchange heat with the air inside the housing 1, and ultimately dissipate the heat to the external environment through the housing 1 material. The uniformly distributed protrusions help to achieve a uniform temperature field.

[0030] Preferably, the shell 1 is made of high thermal conductivity die-cast aluminum alloy.

[0031] Furthermore, the light source mounting area 11 is a local recess or planar area on the inner surface of the housing 1.

[0032] Preferably, the checkerboard-style heat dissipation structure 2 covers the entire light source mounting area 11 and extends to its surrounding area to further expand the heat dissipation area and promote heat diffusion.

[0033] By assembling the aforementioned heat sink housing with components such as the LED light source module, driver power supply, and light-transmitting cover (e.g., glass), a complete LED lamp can be formed. Because the heat sink housing itself is a sealed structure, the light-transmitting cover can be tightly fitted to the housing via a sealing ring, thus enabling the lamp to easily achieve a higher level of protection.

[0034] Unless otherwise specified in the above description, all parts are prior art or can be implemented using existing technology. Furthermore, the specific embodiments described in this utility model are merely preferred embodiments and are not intended to limit the scope of this utility model. That is, all equivalent changes and modifications made within the scope of this utility model patent should be considered within the technical scope of this utility model.

Claims

1. A heat dissipation housing, characterized in that: The device includes a housing (1), one side of which is provided with a light source mounting area (11). The bottom surface of the light source mounting area (11) is provided with an integrally formed checkerboard heat dissipation structure (2). The checkerboard heat dissipation structure (2) includes reinforcing ribs (21) and dot matrix protrusions (22). Multiple intersecting reinforcing ribs (21) are provided on the bottom surface of the light source mounting area (11), and dot matrix protrusions (22) are provided within the grid defined by each reinforcing rib (21).

2. The heat dissipation housing according to claim 1, characterized in that: The dot matrix protrusions (22) are multiple columnar, block-shaped or conical protrusions protruding from the bottom surface of the light source mounting area (11).

3. The heat dissipation housing according to claim 1, characterized in that: The reinforcing ribs (21) are arranged in a vertical and horizontal crisscross pattern in the light source mounting area (11) to form a rectangular or square grid.

4. The heat dissipation housing according to claim 3, characterized in that: The dot matrix protrusions (22) are evenly distributed in the grid.

5. The heat dissipation housing according to claim 1, characterized in that: The shell (1) is made of high thermal conductivity die-cast aluminum alloy.

6. The heat dissipation housing according to claim 5, characterized in that: The light source mounting area (11) is a local recess or planar area on the inner surface of the housing (1).

7. The heat dissipation housing according to claim 1, characterized in that: The checkerboard heat dissipation structure (2) covers the entire light source mounting area (11) and extends to its surrounding area.

8. An LED lamp with a heat dissipation housing, characterized in that, It includes a heat dissipation housing as described in any one of claims 1-7, and an LED light source module installed in the light source mounting area (11).

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