Aluminum extrusion type radiating fin

By setting a concave snap-fit ​​sleeve and heat dissipation fins on the aluminum extruded heat sink, the heat conduction area is increased, and the dust can be removed and cleaned. This solves the problems of small contact area of ​​heat sink fins and dust adhesion, achieving more efficient heat dissipation and convenient cleaning.

CN224165008UActive Publication Date: 2026-04-24DONGGUAN XINHAO HARDWARE MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN XINHAO HARDWARE MASCH CO LTD
Filing Date
2025-03-31
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing aluminum extruded heat sinks have limited contact area between the heat sink fins and the air, and dust easily adheres to the fins, affecting the heat dissipation effect.

Method used

Multiple heat dissipation fins are fixedly bonded to the heat conduction plate. Each fin is equipped with a U-shaped snap-fit ​​sleeve. A heat dissipation fin is welded onto the snap-fit ​​sleeve and fixed by a locking rod to increase the heat conduction area. The snap-fit ​​sleeve can be removed to clean dust.

Benefits of technology

It increases the contact area between heat and air, enhances heat dissipation, and makes it easier to clean dust, thus maintaining heat dissipation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an aluminum extrusion type radiating fin which comprises a heat conducting plate, a plurality of radiating fins are fixedly bonded on the heat conducting plate, clamping sleeves are arranged on the radiating fins, the clamping sleeves are movably clamped on the radiating fins, a row of radiating thin sheets are fixedly welded on the top wall and the bottom wall of each clamping sleeve, and the radiating thin sheets are arranged on the top wall and the bottom wall of each clamping sleeve. And the same locking rod is arranged on the front sides of the multiple clamping sleeves, an L-shaped mounting rod is fixedly welded to the locking rod, a fastening bolt is arranged on the L-shaped mounting rod, and the fastening bolt is in threaded connection to the heat conduction plate. When the radiator is used, the clamping sleeve is clamped on the radiating fins, heat on the radiating fins can be conducted to the clamping sleeve, and the radiating sheets arranged on the clamping sleeve can absorb the heat on the clamping sleeve, so that the heat on the clamping sleeve is conducted to the radiating sheets to be in contact with the air, and the radiating effect of the radiator is improved. Therefore, the contact area between heat and air is greatly increased, and the heat dissipation effect of the aluminum extrusion type cooling fin is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of heat sink technology, specifically to an aluminum extruded heat sink. Background Technology

[0002] Heat sinks are essential heat dissipation devices widely used in electronic equipment, automobiles, aerospace, and other fields. The principle of aluminum fin heat dissipation is based on the principles of thermodynamics. The first law of thermodynamics stipulates the conservation of energy, and the second law of thermodynamics dictates the direction of heat conduction. Therefore, the principle of aluminum fin heat dissipation is to transfer heat generated inside the device to the aluminum fin, and then dissipate the heat into the air through thermal radiation and convection between the surface of the aluminum fin and the air. Extruded aluminum heat sinks have high heat dissipation efficiency, quickly dissipating heat into the air and maintaining the normal temperature of electronic equipment. They are also environmentally friendly, recyclable, and have a minimal impact on the environment, thus gaining widespread application.

[0003] Currently, existing aluminum extruded heat sinks have limited contact area between the heat sink fins and the air during use, resulting in poor heat dissipation performance. Furthermore, the heat sink fins are prone to accumulating dust, making them difficult to clean. To address these issues, we propose an aluminum extruded heat sink. Utility Model Content

[0004] The purpose of this invention is to provide an aluminum extruded heat sink to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an aluminum extruded heat sink, comprising:

[0006] A heat-conducting plate is provided, on which multiple heat dissipation fins are fixedly bonded. The multiple heat dissipation fins are equidistantly distributed, and each of the multiple heat dissipation fins is provided with a snap-fit ​​sleeve. The snap-fit ​​sleeve is shaped like a U and is movably snapped onto the heat dissipation fin. A row of heat dissipation fins is fixedly welded to the top and bottom walls of the snap-fit ​​sleeve. The front side of the multiple snap-fit ​​sleeves is provided with the same locking rod. The top and bottom ends of the locking rod are fixedly welded with L-shaped mounting rods. The L-shaped mounting rods are provided with fastening bolts, and two fastening bolts are threaded to the heat-conducting plate.

[0007] Preferably, the locking rod has multiple equally spaced through slots, the spacing between the multiple through slots is the same as the spacing between the multiple snap-fit ​​sleeves, and a limiting post is fixedly welded to the middle of the snap-fit ​​sleeve, the limiting post being adapted to the through slots.

[0008] Preferably, the heat-conducting plate, heat dissipation fins, snap-fit ​​sleeve, and heat dissipation sheet are all made of aluminum.

[0009] Preferably, the heat-conducting plate has multiple mounting holes.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. When this utility model is used, the heat on the heat dissipation fins can be conducted to the snap-fit ​​sleeve by snapping it onto the heat dissipation fins. The heat on the snap-fit ​​sleeve can be absorbed by the multiple heat dissipation fins set on the snap-fit ​​sleeve, so that the heat on the snap-fit ​​sleeve can be conducted to the multiple heat dissipation fins and come into contact with the air, thereby greatly increasing the contact area between the heat and the air, and thus improving the heat dissipation effect of the aluminum extruded heat dissipation fins.

[0012] 2. The snap-fit ​​sleeve of this utility model is snap-fitted onto the heat dissipation fins and locked in place by a locking rod. This allows the snap-fit ​​sleeve to be removed and washed directly when there is a lot of dust on its surface, thus removing the dust and preventing excessive dust accumulation that could affect the heat dissipation of the snap-fit ​​sleeve. The snap-fit ​​sleeve is also easy to install and remove. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of an aluminum extruded heat sink proposed in this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the connection between the snap-fit ​​sleeve and the heat dissipation sheet in an aluminum extruded heat sink according to the present invention.

[0015] Figure 3 This is a three-dimensional structural diagram of the connection between the locking rod and the L-shaped mounting rod in an aluminum extruded heat sink according to the present invention;

[0016] In the diagram: 1. Heat-conducting plate; 2. Heat dissipation fins; 3. Snap-fit ​​sleeve; 4. Heat dissipation sheet; 5. Locking rod; 6. L-shaped mounting rod; 7. Fastening bolt; 8. Through groove; 9. Limiting post; 10. Mounting hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution: an aluminum extruded heat sink, comprising:

[0019] A heat-conducting plate 1 is provided, on which multiple heat dissipation fins 2 are fixedly bonded. The multiple heat dissipation fins 2 are equidistantly distributed, and each of the multiple heat dissipation fins 2 is provided with a snap-fit ​​sleeve 3. The snap-fit ​​sleeve 3 is shaped like a U-shape and is movably snapped onto the heat dissipation fins 2. A row of heat dissipation thin plates 4 are fixedly welded to the top and bottom walls of the snap-fit ​​sleeve 3. The front side of the multiple snap-fit ​​sleeves 3 is provided with the same locking rod 5. The top and bottom ends of the locking rod 5 are fixedly welded with L-shaped mounting rods 6. The L-shaped mounting rods 6 are provided with fastening bolts 7, and two fastening bolts 7 are threadedly connected to the heat-conducting plate 1.

[0020] The locking rod 5 has multiple equally spaced through slots 8, and the spacing between the multiple through slots 8 is the same as the spacing between the multiple snap-fit ​​sleeves 3. A limiting post 9 is fixedly welded to the middle of the snap-fit ​​sleeve 3. The limiting post 9 is adapted to the through slot 8. By the insertion and cooperation between the limiting post 9 and the through slot 8 on the locking rod 5, the multiple snap-fit ​​sleeves 3 can be locked and fixed after the locking rod 5 is installed, preventing the snap-fit ​​sleeves 3 from falling off the heat dissipation fins 2.

[0021] The heat-conducting plate 1, heat dissipation fins 2, snap-fit ​​sleeve 3, and heat dissipation sheet 4 are all made of aluminum, which has excellent thermal conductivity, thereby improving the heat dissipation effect.

[0022] The heat-conducting plate 1 has multiple mounting holes 10, which can be used to fix the heat-conducting plate 1 in the required position by means of the provided locking bolts.

[0023] Working principle: In use, the heat-conducting plate 1 absorbs the heat generated by the heat dissipation components and conducts the heat to multiple heat dissipation fins 2. The heat is then transferred to the heat dissipation fins 2 by the snap-fit ​​sleeve 3. Multiple heat dissipation fins 4 on the snap-fit ​​sleeve 3 absorb the heat, allowing the heat to be transferred to the air and thus greatly increasing the contact area between the heat and the air, thereby improving the heat dissipation effect of the aluminum extruded heat sink. The snap-fit ​​sleeve 3 is snapped onto the heat dissipation fins 2 and locked in place by the locking rod 5. This allows the snap-fit ​​sleeve 3 to be easily removed and washed when there is a lot of dust on its surface, preventing excessive dust accumulation that could affect the heat dissipation of the snap-fit ​​sleeve 3. The snap-fit ​​sleeve 3 is also easy to install and remove.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aluminum extruded heat sink, characterized in that, include: A heat-conducting plate (1) is fixedly bonded with multiple heat dissipation fins (2). The multiple heat dissipation fins (2) are equidistantly distributed. Each of the multiple heat dissipation fins (2) is provided with a snap-fit ​​sleeve (3). The snap-fit ​​sleeve (3) is set in a U-shape. The snap-fit ​​sleeve (3) is movably snapped onto the heat dissipation fins (2). A row of heat dissipation thin plates (4) is fixedly welded on the top and bottom walls of the snap-fit ​​sleeve (3). The front side of the multiple snap-fit ​​sleeves (3) is provided with the same locking rod (5). The top and bottom ends of the locking rod (5) are fixedly welded with L-shaped mounting rods (6). The L-shaped mounting rods (6) are provided with fastening bolts (7). Both fastening bolts (7) are threaded onto the heat-conducting plate (1).

2. The aluminum extruded heat sink according to claim 1, characterized in that: The locking rod (5) has multiple equally spaced through slots (8), the spacing between the multiple through slots (8) is the same as the spacing between the multiple snap sleeves (3), and a limiting post (9) is fixedly welded to the middle of the snap sleeve (3), the limiting post (9) is adapted to the through slots (8).

3. The aluminum extruded heat sink according to claim 1, characterized in that: The heat-conducting plate (1), heat dissipation fins (2), snap-fit ​​sleeve (3) and heat dissipation sheet (4) are all made of aluminum.

4. The aluminum extruded heat sink according to claim 1, characterized in that: The heat-conducting plate (1) has multiple mounting holes (10).