Nested combined cold forging radiator

The cold-forged radiator, with its nested modular design, utilizes the upper and lower plates to form a narrow unidirectional exhaust channel, solving the problem of airflow dispersion, improving heat exchange efficiency, simplifying operation, and ensuring connection stability.

CN224073304UActive Publication Date: 2026-04-03HUIRUI PRECISION TECHNOLOGY (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The bifurcated airflow channels of existing cold-forged heat sinks cause airflow dispersion, making it difficult for the airflow to act directly on the fins and affecting heat exchange efficiency.

Method used

The design incorporates a nested, modular cold-forged radiator. The combination of the upper and lower plates creates a narrow, unidirectional exhaust channel. The airflow travels along the arc-shaped trajectory of the fins and exchanges heat with them. Connecting and fixing components ensure a stable connection.

Benefits of technology

It improves heat exchange efficiency and quality, reduces operational difficulty, and ensures connection stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a nested combined type cold forging radiator, relates to the technical field of radiating devices, and aims to solve the technical problems that airflow is dispersed and is inconvenient to directly act on fins and the heat exchange efficiency is influenced due to the fact that an airflow channel of the existing cold forging radiator is branched, and comprises an upper disc, a lower disc, a connecting assembly and a fixing assembly, fins are distributed on the connected sides of the upper disc and the lower disc in an annular array mode, an air duct is fixedly installed at the upper end of the upper disc through connecting bolts, a ventilation opening is formed in the middle of the upper disc, fixing bolts are distributed on the lower disc in an annular array mode, and a connecting opening is formed in the middle of the lower disc. The connecting assembly is installed between the upper disc and the lower disc, the connecting assembly is composed of an inserting barrel and strip pieces, the strip pieces are distributed on the lower side of the inserting barrel in an annular array mode, and the fixing assembly is installed on the inner sides of the strip pieces. The embedded radiator has the advantages that a closed narrow airflow channel is formed by the embedded radiator structure, and the heat exchange efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of heat dissipation device technology, and more specifically, to a nested combined cold-forged heat sink. Background Technology

[0002] Cold forging is a processing method that applies external force to a metal billet below its recrystallization temperature, typically at room temperature, to induce plastic deformation and obtain the desired shape, size, and properties. For cold-forged heat sinks, the cold forging process can transform raw materials into various heat sink components, such as heat dissipation fins and base plates. During this process, the metal material's strength, hardness, and other mechanical properties are improved due to work hardening, while also ensuring high precision and good surface quality of the components.

[0003] Existing cold-forged heat sinks use fins to dissipate heat absorbed by the substrate, combined with a cooling fan to improve heat dissipation efficiency. However, the fin spacing of existing cold-forged heat sinks forms heat dissipation channels, which are relatively dispersed. After the airflow from the cooling fan enters, it disperses outward through these branching channels, resulting in dispersed airflow, low heat exchange efficiency, and less airflow directly acting on the fins, thus affecting heat dissipation performance. Therefore, we propose a nested, combined cold-forged heat sink. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a nested combined cold forged heat sink to solve the technical problem that the airflow is dispersed due to the branching of the airflow channel in the current cold forged heat sink, which makes it inconvenient to directly act on the fins and affects the heat exchange efficiency.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a nested combined cold-forged heat sink, including an upper plate, a lower plate, a connecting component, and a fixing component. Fins are arranged in a ring array on the connected side of the upper and lower plates. A fan duct is fixedly installed on the upper end of the upper plate by connecting bolts. A ventilation opening is provided in the middle of the upper plate. Fixing bolts are arranged in a ring array on the lower plate. A connection port is provided in the middle of the lower plate. The connecting component is installed between the upper and lower plates. The connecting component is composed of a tube and strips, and the strips are arranged in a ring array on the lower side of the tube. The fixing component is installed on the inner side of the strips.

[0006] When using this invention, the cooling fan is activated, allowing external airflow to be guided into the connecting assembly through the air-collecting tube and vents. The airflow is then guided laterally through the gaps between the fins into the exhaust channel formed between the upper and lower plates. The upper and lower plates seal the upper and lower openings of the exhaust channel, allowing the airflow to follow the arc-shaped trajectory of the fins. During flow, the airflow effectively contacts the fins to complete heat exchange. The heat-exchanged airflow is then discharged outwards from the outer opening of the exhaust channel. This structural design creates a narrow, one-way exhaust channel between the staggered fins, ensuring efficient and high-quality heat exchange. The radiator structure of this device consists of a combined upper and lower plate. During installation… Connect the lower end strip of the insert to the connection port, and install the threaded fixing bolt inside the connection port. Press the L-shaped bottom end of the strip down the positioning port of the fixing bolt to fix the connecting assembly inside the lower plate. Then, connect the heat dissipation element to the lower plate with fixing bolts so that the lower plate fits snugly to absorb heat. Insert the fins of the upper plate onto the fins of the lower plate in an alternating pattern. The nuts on the fins with the interface connecting bolt structure complete the positioning. At this time, insert the upper end of the insert into the vent, and let the spring buckle lock into the locking port inside the vent to complete the connection and fixation. Through the above structural design, the nested combination design facilitates the installation and removal, reduces the difficulty of operation, and at the same time effectively limits the device to ensure connection stability.

[0007] Preferably, the fins are arc-shaped, and the fins of the upper and lower plates form an exhaust channel after being joined together. The outer ends of the fins are provided with snap-fit ​​interfaces.

[0008] Preferably, the air duct is equipped with a cooling fan inside, a connecting ring is fixed to the lower side of the air duct, and a connecting bolt is threaded through the connecting ring. A concentrator is provided at the lower end opening of the air duct, and the concentrator is connected to the ventilation port.

[0009] Preferably, the connecting bolts and fixing bolts are staggered with the corresponding fins, and the snap-fit ​​interface at the outer end of the fin is snapped and limited on the nuts of the connecting bolts and fixing bolts.

[0010] Preferably, the upper end of the insert is inserted into the vent, and the insert has spring-loaded buckles arranged in a ring array, with locking holes provided on the vent for each spring-loaded buckle.

[0011] Preferably, the fixing component consists of a fixing bolt and a pressure sleeve. The pressure sleeve is slidably installed in the cylindrical cavity composed of strips. The outer side of the pressure sleeve has a positioning port in an annular array. The fixing bolt passes through the pressure sleeve and is threaded into the connection port.

[0012] Preferably, the strip has an L-shaped structure, and the lower end of the strip is engaged with the positioning port on the outside of the pressure sleeve.

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

[0014] 1. This utility model designs an upper and lower plate, and when the cooling fan is activated, external airflow is introduced into the connecting assembly through the air-collecting tube and vent. The airflow is then guided to the side through the gaps between the fins of the upper and lower plates into the exhaust channel formed between the fins. The upper and lower plates close the upper and lower openings of the exhaust channel, allowing the airflow to follow the arc trajectory of the fins. During the flow, the airflow adheres well to the fins to complete heat exchange. Then, the heat-exchanged airflow is discharged outward from the outer opening of the exhaust channel. Through the above structural design, a narrow one-way exhaust channel is formed between the staggered fins, ensuring the efficiency and quality of heat exchange.

[0015] 2. This utility model also incorporates a design for the connecting components. The radiator structure of this device consists of a combined upper and lower plate. During installation, the lower end strip of the insert is aligned with the connection port, and the threaded fixing bolt is installed inside the connection port. The positioning port of the fixing bolt presses down on the L-shaped bottom end of the strip, fixing the connecting component inside the lower plate. Then, the lower plate is connected to the heat dissipation element using fixing bolts, allowing the lower plate to fit snugly and absorb heat. The fins of the upper plate are inserted onto the fins of the lower plate in a staggered arrangement. The nuts on the fins, which are secured by the bolt structure, complete the positioning. At this point, the upper end of the insert is inserted into the ventilation port, and the spring-loaded buckle engages with the locking port inside the ventilation port, completing the connection and fixation. Through the above structural design, the nested combination design facilitates assembly and disassembly, reduces the difficulty of operation, and effectively limits the device's movement, ensuring connection stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the lower plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the unfolded structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the ventilation duct structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the connection component of this utility model;

[0022] Figure 7 This is a schematic diagram of the exhaust duct of this utility model.

[0023] The following are the labels in the diagram: 1. Air duct; 101. Cooling fan; 102. Connecting ring; 103. Air concentrator; 2. Upper plate; 201. Connecting bolt; 202. Vent; 3. Fin; 301. Clip interface; 4. Lower plate; 401. Fixing bolt; 402. Connection port; 5. Connecting assembly; 501. Insert; 502. Spring clip; 503. Strip; 6. Fixing assembly; 601. Fixing bolt; 602. Pressure sleeve; 603. Positioning port; 7. Exhaust duct. Detailed Implementation

[0024] like Figures 1 to 5 As shown, this utility model relates to a nested combined cold-forged radiator, including an upper plate 2, a lower plate 4, a connecting component 5, and a fixing component 6. Fins 3 are arranged in a circular array on the connected side of both the upper plate 2 and the lower plate 4. A fan duct 1 is fixedly installed on the upper end of the upper plate 2 by connecting bolts 201. A ventilation port 202 is provided in the middle of the upper plate 2. Fixing bolts 401 are arranged in a circular array on the lower plate 4. A connecting port 402 is provided in the middle of the lower plate 4. The fins 3 are arc-shaped, and the fins 3 of the upper plate 2 and the lower plate 4 form an exhaust channel 7 after being joined. Each fin 3 has a snap-fit ​​interface 301 at its outer end. A cooling fan 101 is installed inside the fan duct 1. A connecting ring 102 is fixed to the lower side of the fan duct 1, and the connecting bolts 201 are threaded through the connecting ring 102. A concentrator 103 is provided at the lower opening of the fan duct 1, and the concentrator 103 is connected to the ventilation port. 202. The connecting bolts 201 and fixing bolts 401 are staggered with the corresponding fins 3, and the snap-fit ​​interface 301 at the outer end of the fins 3 is snapped and limited on the nuts of the connecting bolts 201 and fixing bolts 401. The cooling fan 101 is started so that the external airflow is introduced into the connecting assembly 5 through the air concentrator 103 and the vent 202. The airflow is introduced to the side into the exhaust channel 7 formed between the fins 3 of the upper plate 2 and the lower plate 4 through the gap between the strips 503. The upper and lower openings of the exhaust channel 7 are closed by the upper plate 2 and the lower plate 4 so that the airflow runs along the arc trajectory of the fins 3. The airflow fits well with the fins 3 during the flow to complete the heat exchange. Then the heat-exchanged airflow is discharged outward from the outer opening of the exhaust channel 7. Through the above structural design, a one-way narrow exhaust channel 7 is formed between the staggered fins 3 to ensure the efficiency and quality of heat exchange.

[0025] like Figures 3 to 7As shown, this utility model relates to a nested combined cold-forged radiator, including an upper plate 2, a lower plate 4, a connecting component 5, and a fixing component 6. The connecting component 5 is installed between the upper plate 2 and the lower plate 4, and is composed of a sleeve 501 and strips 503. The strips 503 are arranged in a ring array on the lower side of the sleeve 501. The fixing component 6 is installed inside the strips 503. The upper end of the sleeve 501 is inserted into the vent 202, and spring-loaded buckles are arranged in a ring array on the sleeve 501. 502, and the spring-loaded buckle 502 has a locking port on the vent 202. The fixing component 6 consists of a fixing bolt 601 and a pressure sleeve 602. The pressure sleeve 602 is slidably installed in the cylindrical cavity formed by the strips 503. The outer side of the pressure sleeve 602 has a positioning port 603 in an annular array. The fixing bolt 601 passes through the pressure sleeve 602 and is threaded into the connection port 402. The strips 503 have an L-shaped structure design, and the lower end plane of the strips 503 is engaged with the pressure sleeve 602. Inside the outer positioning port 603, the radiator structure of this device is composed of a combined upper plate 2 and lower plate 4. During installation, the lower end strip 503 of the insert 501 is aligned with the connection port 402, and the fixing bolt 601 is threaded into the connection port 402. The positioning port 603 of the fixing bolt 601 presses down on the L-shaped bottom end of the strip 503, so that the connecting component 5 is fixed in the lower plate 4. Then, the lower plate 4 is connected to the heat dissipation element through the fixing bolt 401, so that the lower plate 4 fits to absorb heat. The fins 3 of the upper plate 2 are inserted into the fins 3 of the lower plate 4, arranged in an alternating pattern. The nuts of the locking interface 301 on the fins 3 are aligned with the bolt structure to complete the positioning. At this time, the upper end of the insert 501 is inserted into the ventilation port 202, so that the spring buckle 502 is locked into the inner locking port of the ventilation port 202 to complete the connection and fixation. Through the above structural design, the nested combination design facilitates the installation and removal, reduces the difficulty of operation, and at the same time effectively limits the device to ensure connection stability.

[0026] Working Principle: This embodiment provides a nested combined cold-forged radiator. In use, the cooling fan 101 is activated, causing external airflow to be guided through the air-collecting tube 103 and the vent 202 into the connecting assembly 5. The airflow is then guided laterally through the gaps between the fins 503 into the exhaust channel 7 formed between the fins 3 of the upper plate 2 and the lower plate 4. The upper and lower openings of the exhaust channel 7 are closed by the upper plate 2 and the lower plate 4, allowing the airflow to follow the arc-shaped trajectory of the fins 3. During the flow, the airflow effectively contacts the fins 3 to complete heat exchange. The heat-exchanged airflow is then discharged outwards from the outer opening of the exhaust channel 7. The radiator structure of this device is composed of a combined upper plate 2 and lower plate 4. During installation, align the lower end strip 503 of the insert 501 with the connection port 402, and thread the fixing bolt 601 into the connection port 402. Press the L-shaped bottom end of the strip 503 down through the positioning port 603 of the fixing bolt 601 to fix the connecting assembly 5 inside the lower plate 4. Then, connect the heat dissipation element to the lower plate 4 through the fixing bolt 401 so that the lower plate 4 fits to absorb heat. Insert the fins 3 of the upper plate 2 onto the fins 3 of the lower plate 4 in an alternating pattern. The nuts on the fins 3 with the bolt structure of the locking interface 301 are used to complete the positioning. At this time, insert the upper end of the insert 501 into the ventilation port 202, so that the spring buckle 502 locks into the locking port inside the ventilation port 202 to complete the connection and fixation.

[0027] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A nested combined cold-forged radiator comprising an upper disc (2), a lower disc (4), a connecting assembly (5) and a fixing assembly (6), characterized in that: The upper disc (2) and the lower disc (4) are connected on one side and are arranged in an annular array with fins (3), the upper end of the upper disc (2) is fixedly installed with a wind cylinder (1) through a connecting bolt (201), a ventilation opening (202) is arranged in the middle of the upper disc (2), the lower disc (4) is arranged in an annular array with fixing bolts (401), a connecting opening (402) is arranged in the middle of the lower disc (4), the connecting assembly (5) is installed between the upper disc (2) and the lower disc (4), the connecting assembly (5) is composed of a plug-in cylinder (501) and a strip (503), and the strip (503) is arranged in an annular array under the plug-in cylinder (501), and the fixing assembly (6) is installed inside the strip (503).

2. A nested modular cold forged heat sink according to claim 1, wherein: The fins (3) are designed in an arc shape, and the fins (3) of the upper disc (2) and the lower disc (4) form an exhaust channel (7) after being connected, and the outer end of the fin (3) is provided with a clamping opening (301).

3. A nested modular cold forged heat sink according to claim 2, wherein: The inside of the wind cylinder (1) is provided with a cooling fan (101), the lower side of the wind cylinder (1) is fixedly provided with a connecting ring (102), the connecting bolt (201) is threaded through the connecting ring (102), and the lower end opening of the wind cylinder (1) is provided with a wind collecting cylinder (103), and the wind collecting cylinder (103) is connected to the ventilation opening (202).

4. A nested modular cold forged heat sink according to claim 3, wherein: The connecting bolt (201) and the fixing bolt (401) are arranged in a staggered manner with the corresponding fins (3), and the clamping opening (301) at the outer end of the fin (3) is clamped and limited on the nut of the connecting bolt (201) and the fixing bolt (401).

5. A nested modular cold forged heat sink according to claim 4, wherein: The upper end of the plug-in cylinder (501) is inserted into the ventilation opening (202), the plug-in cylinder (501) is arranged in an annular array on the upper side and is provided with elastic buckles (502), and the elastic buckles (502) are connected to the locking openings arranged in the ventilation opening (202).

6. A nested modular cold forged heat sink according to claim 5, wherein: The fixing assembly (6) is composed of a fixing buckle (601) and a pressing sleeve (602), the pressing sleeve (602) is slidingly installed in the cylindrical cavity composed of the strip (503), the outer side of the pressing sleeve (602) is arranged in an annular array with positioning openings (603), and the fixing buckle (601) is threadedly installed in the connecting opening (402) after penetrating through the pressing sleeve (602).

7. A nested modular cold forged heat sink according to claim 6, wherein: The strip (503) is designed in an L-shaped structure, and the lower end of the strip (503) is clamped in the positioning opening (603) on the outer side of the pressing sleeve (602).