A finned heat sink

Abstract

The utility model belongs to the technical field of case heat dissipation, especially a fin type radiator, including the heat dissipation fan is located in the control case interior, the heat dissipation fan is set up and is opened three holes and four holes, the heat dissipation fan is installed with the heat dissipation frame to case one side, just the heat dissipation frame inside installation detachable first fin, the heat dissipation fan is installed with the second fin that is different with the first fin direction away from the heat dissipation frame one end, the second fin front end is equipped with the protective net, the utility model sets up the first fin and the second fin of different direction, and both are located heat dissipation fan both ends, can strengthen control case interior heat dissipation effect and range when actual use, set up the first fin and the second fin into independent detachable structure, thereby convenient surface dust cleaning, and through the heat dissipation frame and the protective net that set up can protect two groups of fins, also can prevent the staff from operating in the case and two groups of fins sharp part contact and lead to injury when.

Description

Technical Field

[0001] This utility model belongs to the field of chassis heat dissipation technology, specifically relating to a finned heat sink. Background Technology

[0002] A machined control enclosure is an industrial-grade protective housing manufactured through precision machining (such as CNC milling, turning, drilling, etc.). It is typically made of aluminum alloy, stainless steel, or carbon steel, and features high rigidity, high precision, and excellent electromagnetic shielding performance. Its structure includes standardized mounting holes, heat dissipation slots, and sealed interfaces to encapsulate key electronic components such as PLC controllers, servo drives, and industrial control motherboards. This ensures stable operation of the equipment in harsh environments such as dust, oil, and vibration, while also accommodating modular layout and convenient maintenance. It is widely used in automated production lines, CNC machine tools, and robotic systems.

[0003] In machining, controlling the heat dissipation inside the chassis is the key to ensuring stable operation and extending the life of the equipment. Traditional methods include fan-type and fan + fin type. The fan + fin type has a better heat dissipation effect than the single fan type and does not require external cooling equipment.

[0004] However, the equipment in the factory will generate a certain amount of dust during use and processing, and the control box needs sufficient heat dissipation. This makes it easy for dust to accumulate on the fins, which in turn affects the heat dissipation effect. Since the traditional fins and fans are integrated, the fins cannot be easily removed and cleaned separately, which makes it impossible to clean the gaps between the fins properly and is not conducive to maintenance. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a finned heat sink, which features efficient heat dissipation and ease of maintenance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a finned heat sink, comprising a cooling fan located inside a control chassis, the cooling fan having a No. 3 hole and a No. 4 hole, a heat sink frame installed on the side of the cooling fan near the chassis, and a detachable first fin installed inside the heat sink frame, a second fin with a different direction from the first fin installed on the end of the cooling fan away from the heat sink frame, a protective mesh provided at the front end of the second fin, airflow channels for the cooling fan being formed in the heat sink frame, the first fin, and the second fin, and the cooling fan, the second fin, and the protective mesh being connected by fasteners.

[0007] As a preferred technical solution of this utility model, the second fin includes a second heat sink plate and a second heat sink fin arranged in parallel and vertically on the second heat sink plate. The second heat sink plate is in close contact with the cooling fan. A second hole is opened on the second heat sink plate. A first hole is opened on the protective net. The long bolt in the fastener passes through the first hole, the second hole, and the third hole and is screwed and tightened with the nut.

[0008] As a preferred technical solution of this utility model, the heat dissipation frame has a heat conduction groove on the side near the heat dissipation fan, and an interlocking groove is formed inside the heat dissipation frame on the side near the heat conduction groove. The first fin includes a first heat dissipation plate and a first heat dissipation fin arranged in parallel and vertically on the first heat dissipation plate. The front end of the first heat dissipation fin is inserted into the interlocking groove.

[0009] As a preferred technical solution of this utility model, a threaded lug is formed on one side of the heat dissipation frame, and a second lug is formed on one side of the first heat dissipation plate that overlaps with the threaded lug. The first fin and the heat dissipation frame are fixed by a second bolt passing through the second lug and then screwed together with the threaded lug.

[0010] As a preferred technical solution of this utility model, the heat dissipation frame has a threaded hole that coincides with the No. 4 hole on the side near the heat dissipation fan. The heat dissipation fan and the heat dissipation frame are fixed by the No. 3 bolt passing through the No. 4 hole and then screwed together with the threaded hole.

[0011] As a preferred embodiment of this utility model, the heat dissipation frame and the first fin are larger in volume than the heat dissipation fan and the second fin.

[0012] As a preferred technical solution of this utility model, the heat dissipation frame is provided with a first ear hole on its side. After the heat dissipation is assembled, it is fixedly installed to the control box by passing a first bolt through the first ear hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model is provided with first and second fins in different directions, and the two are located at both ends of the cooling fan, which can enhance the control of the heat dissipation effect and range inside the chassis during actual use.

[0015] This invention features a detachable structure for both the first and second fins, facilitating surface dust cleaning. Furthermore, the heat dissipation frame and protective mesh protect the two sets of fins and prevent workers from being injured by contact with the sharp parts of the fins while operating inside the chassis. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 for Figure 1 Rear view structural diagram;

[0019] Figure 3 This is a side view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the present invention from the front view.

[0021] Figure 5 A schematic diagram showing the disassembly of the second fin and the protective mesh from the cooling fan;

[0022] Figure 6 A structural diagram showing the disassembly of the cooling fan and heatsink frame;

[0023] Figure 7 A schematic diagram showing the structure where the heat sink frame and the first fin are detached;

[0024] In the diagram: 1. Cooling fan; 11. Hole No. 3; 12. Hole No. 4; 2. Heat sink frame; 21. Heat conduction groove; 22. Fitting groove; 23. Threaded hole; 24. Ear hole No. 1; 25. Threaded ear hole; 3. First fin; 31. First heat sink plate; 32. First heat sink fin; 33. Ear hole No. 2; 4. Second fin; 41. Second heat sink plate; 411. Hole No. 2; 42. Second heat sink fin; 5. Protective mesh; 51. Hole No. 1; 6. Bolt No. 1; 7. Bolt No. 2; 8. Bolt No. 3; 9. Fastener; 91. Long bolt; 92. Nut. Detailed Implementation

[0025] 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.

[0026] Example

[0027] Please see Figures 1-7The present invention provides the following technical solution: a finned radiator, including a cooling fan 1 located inside a control box. The cooling fan 1 includes a cylindrical air duct, a motor and fan blades installed inside the cylinder, and a plug for connecting to an external power supply provided outside the cylinder. Connecting plates are formed at both ends of the cylinder, and holes No. 3 11 and No. 4 12 are respectively opened on the connecting plates at both ends.

[0028] Furthermore, a heat sink frame 2 is installed on the side of the cooling fan 1 near the chassis, and a removable first fin 3 is installed inside the heat sink frame 2. A second fin 4 with a different direction than the first fin 3 is installed on the end of the cooling fan 1 away from the heat sink frame 2. The fins with different directions can provide more uniform heat dissipation for the control chassis. A protective mesh 5 is provided at the front end of the second fin 4. Airflow channels for the cooling fan 1 are formed in the heat sink frame 2, the first fin 3, and the second fin 4.

[0029] Specifically, the second fin 4 includes a second heat sink 41 and second heat sink fins 42 arranged parallel and vertically on the second heat sink 41. The second heat sink 41 is in close contact with the cooling fan 1. The second heat sink 41 has a second hole 411, and the protective mesh 5 has a first hole 51. The cooling fan 1, the second fin 4, and the protective mesh 5 are connected by fasteners 9. The long bolts 91 in the fasteners 9 pass through the first hole 51, the second hole 411, and the third hole 11 and are screwed together with the nuts 92. In this embodiment, the protective mesh 5 protects the sharp part at the front end of the second fin 4 to prevent injury from contact with the body. At the same time, the protective mesh 5 can also prevent large objects from entering the cooling fan 1 and causing damage.

[0030] Specifically, the heat dissipation frame 2 has a heat conduction groove 21 on the side near the cooling fan 1, and an interlocking groove 22 is provided inside the heat dissipation frame 2 on the side near the heat conduction groove 21. The first fin 3 includes a first heat dissipation plate 31 and a first heat dissipation fin 32 arranged in parallel and vertically on the first heat dissipation plate 31. The front end of the first heat dissipation fin 32 is inserted into the interlocking groove 22. In this embodiment, both the heat dissipation frame 2 and the first fin 3 are integrally formed from a high thermal conductivity metal material. The heat conduction groove 21 is provided to increase the contact surface between the heat dissipation frame 2 and the air, thereby enhancing heat dissipation. The interlocking groove 22 and the first heat dissipation fin 32 are interlocked to increase the heat conduction area and enhance heat conduction.

[0031] Furthermore, a threaded lug 25 is formed on one side of the heat sink frame 2, and a second lug 33 is formed on one side of the first heat sink 31, which overlaps with the threaded lug 25. The first fin 3 and the heat sink frame 2 are fixed by the screw 7 passing through the second lug 33 and then being screwed and pressed into the threaded lug 25. The first fin 3 can be independently disassembled and assembled from the heat sink frame 2 by only one second bolt 7, which facilitates maintenance after independent disassembly.

[0032] Specifically, the heat sink frame 2 has a threaded hole 23 that overlaps with the fourth hole 12 on the side near the heat sink fan 1. The heat sink fan 1 and the heat sink frame 2 are fixed by the screw 8 passing through the fourth hole 12 and then being screwed into the threaded hole 23. In this embodiment, the heat sink fan 1 and the heat sink frame 2 are connected by the screw 8, which facilitates the processing of the heat sink frame 2 and also facilitates assembly and subsequent replacement and maintenance.

[0033] Specifically, the heat sink 2 and the first fin 3 are larger in volume than the cooling fan 1 and the second fin 4. Since the heat sink 2 and the first fin 3 are close to the inner wall of the control box, their area can be appropriately increased to ensure the airflow diffusion range. The cooling fan 1 and the second fin 4 are protruding, and their volume is appropriately reduced to avoid interference with daily use.

[0034] Specifically, the heat sink frame 2 has a first ear hole 24 on its side. There are at least four evenly distributed first ear holes 24. After the heat sink is assembled, it is fixed to the control box by passing through the first ear hole 24 with a first bolt 6.

[0035] Working principle and usage process of this utility model:

[0036] Assembly and installation of the heat sink: The cooling fan 1, the second fin 4, and the protective mesh 5 are attached together. The long bolt 91 passes through the first hole 51, the second hole 411, and the third hole 11 and is screwed into the nut 92 to tighten it. The cooling fan 1 is attached to the heat sink frame 2. The third bolt 8 passes through the fourth hole 12 and is screwed into the threaded hole 23 to tighten it. The first fin 3 is installed into the heat sink frame 2 from the side. The second bolt 7 passes through the second ear hole 33 and is screwed into the threaded ear hole 25 to tighten it. The heat sink frame 2 is attached to the inner wall of the chassis. The first bolt 6 passes through the first ear hole 24 and is screwed into the chassis to tighten it.

[0037] Maintenance; the second fin 4 and the protective mesh 5 can be disassembled independently by removing the fastener 9; this facilitates deep cleaning of the second heat sink 41 and the second heat sink 42; the first fin 3 can be disassembled independently by removing the second bolt 7, which facilitates deep cleaning of the first heat sink 31 and the first heat sink 32.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A finned heat sink, comprising a cooling fan (1) located inside a control chassis, wherein the cooling fan (1) has a third hole (11) and a fourth hole (12), characterized in that: The cooling fan (1) is mounted with a heat sink frame (2) on the side of the chassis, and a removable first fin (3) is installed inside the heat sink frame (2). A second fin (4) with a different direction from the first fin (3) is installed on the end of the cooling fan (1) away from the heat sink frame (2). A protective net (5) is provided at the front end of the second fin (4). Airflow channels for the cooling fan (1) are formed in the heat sink frame (2), the first fin (3) and the second fin (4). The cooling fan (1), the second fin (4) and the protective net (5) are connected by fasteners (9).

2. The finned radiator according to claim 1, characterized in that: The second fin (4) includes a second heat sink (41) and a second heat sink (42) arranged in parallel and vertically on the second heat sink (41). The second heat sink (41) is in close contact with the cooling fan (1). The second heat sink (41) has a second hole (411). The guard net (5) has a first hole (51). The long bolt (91) in the fastener (9) passes through the first hole (51), the second hole (411), and the third hole (11) and is screwed and tightened with the nut (92).

3. A finned radiator according to claim 1, characterized in that: The heat dissipation frame (2) has a heat conduction groove (21) on the side near the heat dissipation fan (1), and an interlocking groove (22) is provided inside the heat dissipation frame (2) on the side near the heat conduction groove (21). The first fin (3) includes a first heat dissipation plate (31) and a first heat dissipation fin (32) arranged in parallel and vertically on the first heat dissipation plate (31). The front end of the first heat dissipation fin (32) is inserted into the interlocking groove (22).

4. A finned radiator according to claim 3, characterized in that: The heat dissipation frame (2) has a threaded ear hole (25) formed on one side, and the first heat dissipation plate (31) has a second ear hole (33) formed on one side that overlaps with the threaded ear hole (25). The first fin (3) and the heat dissipation frame (2) are fixed by the screw pressing of the second bolt (7) through the second ear hole (33) and the threaded ear hole (25).

5. A finned radiator according to claim 1, characterized in that: The heat dissipation frame (2) has a threaded hole (23) on the side near the heat dissipation fan (1) that overlaps with the fourth hole (12). The heat dissipation fan (1) and the heat dissipation frame (2) are fixed by the screw pressing of the threaded hole (23) after the third bolt (8) passes through the fourth hole (12).

6. A finned radiator according to claim 1, characterized in that: The volume of the heat sink frame (2) and the first fin (3) is larger than that of the cooling fan (1) and the second fin (4).

7. A finned radiator according to claim 1, characterized in that: The heat dissipation frame (2) has a first ear hole (24) on its side. After the heat dissipation unit is assembled, it is fixedly installed to the control box by passing through the first ear hole (24) with a first bolt (6).

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