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

Figure CN224165008U_ABST
Abstract
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).