A wave fin type heat sink
Patent Information
- Application Number
- CN202511040699.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2045-07-28
AI Technical Summary
Traditional flat-plate heat sinks are inefficient under high heat flux density conditions, making it difficult to meet the heat dissipation requirements under complex operating conditions. They also have poor adaptability in high-temperature environments or compact spaces, which may lead to problems such as excessive noise or decreased stability.
The wavy finned radiator extends the fluid residence time by setting the wavy heat dissipation fins. Combined with the moving mechanism and the flow mechanism, the flow velocity distribution and coolant flow are optimized, thereby increasing the effective heat dissipation area and efficiency.
It improves the heat exchange efficiency of the radiator, optimizes the flow rate distribution, increases the effective heat dissipation area, ensures high-efficiency heat dissipation performance in high-temperature environments or compact spaces, and reduces production costs.
Smart Images

Figure CN120897405B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of heat exchange, and in particular to a wave-shaped finned radiator. Background Technology
[0002] With the development of modern industry and technology, various mechanical equipment and electronic products have increasingly higher requirements for heat dissipation performance. Although traditional flat plate heat sinks are simple in structure and easy to process, they are less efficient under high heat flux density conditions and cannot meet the needs of complex working conditions.
[0003] Existing radiators generally face problems such as low heat dissipation efficiency, high energy consumption, and poor adaptability. Especially for equipment in high-temperature environments or compact spaces, traditional design solutions often fail to achieve a balance between good performance and economic feasibility. In addition, certain specific structures may cause additional problems such as excessive noise or decreased stability after long-term operation, which cannot be ignored. Therefore, there is an urgent need to develop a new concept product to completely break through the bottleneck and achieve a qualitative leap. Summary of the Invention
[0004] The purpose of this application is to provide a wave-shaped finned radiator to solve the problems in the background art mentioned above.
[0005] The wave-shaped finned heat sink provided in this application adopts the following technical solution: it includes a main board, and the top surface of the main board is provided with no less than two sets of partitions on both the left and right ends. There are flow grooves between adjacent sets of partitions, and a heat dissipation mechanism is connected to the top center of the main board. The heat dissipation mechanism includes heat dissipation fins, heat dissipation grooves, a movable mechanism, and a flow mechanism. The top center of the main board is provided with no less than two sets of wave-shaped heat dissipation fins, and a heat dissipation groove is formed between the two sets of heat dissipation fins. The right end of the heat dissipation fin corresponding to the flow groove is connected to a movable mechanism, and the top end of the heat dissipation fin is provided with a flow mechanism.
[0006] By adopting the above technical solution, the fluid in the flow channel can be cooled by the heat dissipation mechanism. By setting the wavy heat dissipation fins, the residence time of the fluid in the heat dissipation mechanism is increased, so that the heat exchange time of the fluid is extended and the overall heat exchange efficiency of the radiator is improved.
[0007] Preferably, the active mechanism includes an impeller, a first rotating shaft, a second rotating shaft, a swing plate, and a drive cavity. A set of impellers is provided at the top of the flow channel on the right end near the heat dissipation fins. The bottom end of the impellers is connected to a set of first rotating shafts. The right end of the heat dissipation fins is connected to a set of swing plates through the second rotating shaft. The inner end of the main board is provided with a corresponding drive cavity. The bottom ends of both the first rotating shaft and the second rotating shaft extend through into the drive cavity.
[0008] By adopting the above technical solution, the impeller can drive the swing plate to swing when it is impacted by the fluid, thereby controlling the opening and closing of the two adjacent sets of heat dissipation slots. This is beneficial for the diversion of the fluid, increasing the effective heat dissipation area of the fluid, optimizing the flow velocity distribution, and improving the heat dissipation efficiency.
[0009] Preferably, the bottom end of the rotating shaft extends through to the right end of the drive cavity and is connected to a set of turntables. The outer end of the bottom surface of the turntables is connected to a set of transmission arms, and the other end of the transmission arms is connected to a set of connectors. The bottom end of the second rotating shaft extends through to the left end of the drive cavity and is connected to a set of gears. The left end of the drive cavity is provided with a set of moving plates. The inner end of the moving plates is provided with a corresponding gear slot 1. The front end of the slot 1 is connected to a rack. The right end of the moving plates is provided with a slot 2. The connector can be inserted into the slot 2.
[0010] By adopting the above technical solution, the rotation of the first rotating shaft can drive the turntable and the transmission arm to rotate, and reciprocate to pull the moving plate. This allows the moving plate to drive the gear and the second rotating shaft to rotate through the rack and pinion, which can realize the modular linkage between the impeller and the swing plate, control the opening and closing of two adjacent sets of heat dissipation slots, and facilitate the diversion of fluid.
[0011] Preferably, the heat dissipation mechanism includes a top plate, a main water supply pipe, a secondary water supply pipe, and a water pump. Each heat dissipation fin has a set of top plates at its top end. Each top plate has a set of main water supply pipes at its left and right ends. Each of the two sets of main water supply pipes has at least two sets of secondary water supply pipes at its far ends. The other ends of the secondary water supply pipes extend through the top plate into the heat dissipation groove. A set of water pumps is provided at the right end of the heat dissipation groove. The outlet of the water pumps is connected to the bottom end of the secondary water supply pipes at the right end.
[0012] By adopting the above technical solution, coolant can be added to the heat dissipation tank through the left end water supply main pipe and water supply auxiliary pipe, and discharged from the right end water supply main pipe and water supply auxiliary pipe by the water pump, so as to realize the continuous flow of coolant and cool the fluid in the front and rear end heat dissipation tanks.
[0013] Preferably, the heat dissipation fins are arranged in an inverted trapezoidal shape.
[0014] Preferably, a set of heat dissipation fins is connected to both the left and right ends of the top surface of the partition, and the heat dissipation groove space between the two sets of heat dissipation fins is enlarged.
[0015] By adopting the above technical solution, the number of unnecessary heat dissipation fins can be reduced, which can not only reduce production costs, but also facilitate the flow of coolant and ensure heat dissipation effect.
[0016] Preferably, all the water supply sub-pipes are connected to the expanded heat dissipation trough.
[0017] Preferably, a set of heat dissipation fins is provided at the top opening of the two sets of flow channels on the left and right sides, and no less than two sets of turbulence elements are provided in the heat dissipation channels at the front and rear ends of the heat dissipation fins.
[0018] By adopting the above technical solution, when the fluid flows in the heat dissipation tank, it impacts the turbulent components and generates local flow resistance, breaking the laminar flow state of the fluid, which can improve the Nusselt number and optimize the heat dissipation performance.
[0019] Preferably, the driving cavity is narrower on the left and wider on the right, and the movable plate can slide at the left end within the driving cavity.
[0020] By adopting the above technical solution, the movement path of the moving plate can be limited to prevent it from dislodging.
[0021] Preferably, the connector is engaged in the second slot and can move back and forth within the second slot.
[0022] By adopting the above technical solution, when the turntable rotates and drives the transmission arm to rotate, the transmission arm can move back and forth in the slot 2 through the connecting piece, thereby improving the stability during movement.
[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. This application uses a heat dissipation mechanism disposed between the left and right flow channels. The heat dissipation mechanism includes components such as heat dissipation fins, heat dissipation channels, moving mechanism and flow mechanism. It can cool the fluid flowing through it and extend the residence time of the fluid through the wave-shaped heat dissipation fins to improve the heat dissipation effect. 2. This application uses a movable mechanism located at the right end of the heat dissipation fins. The movable mechanism includes components such as an impeller, a rotating shaft one, a rotating shaft two, a swing plate, and a drive chamber. The impeller rotates due to fluid impact and drives the swing plate to swing. This can control the opening and closing of the openings of two adjacent sets of heat dissipation slots, thereby achieving fluid diversion, increasing the effective heat dissipation area of the fluid, optimizing the flow velocity distribution, and improving heat dissipation efficiency. 3. This application uses a flow mechanism set at the top of the heat dissipation fins. The flow mechanism includes components such as a top plate, a main water supply pipe, a secondary water supply pipe, and a water pump. Coolant can be injected into the heat dissipation tank through the main water supply pipe and the secondary water supply pipe at the left end to cool down the fluid in the two adjacent heat dissipation tanks. The coolant is then discharged through the main water supply pipe and the secondary water supply pipe at the right end, ensuring the flow of coolant and maintaining the heat dissipation effect. Attached Figure Description
[0024] Figure 1 This is a top view of the overall structure of this application; Figure 2 This is a top view of the heat dissipation mechanism of this application; Figure 3 yes Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a top view of the structure of the organization involved in this application; Figure 5 This is a schematic diagram of the internal structure of the drive cavity in this application; Figure 6 yes Figure 2 Enlarged structural diagram at point B; Figure 7 This is a partial front view schematic diagram of the heat dissipation mechanism of this application; Explanation of reference numerals in the attached drawings: 1. Main board; 2. Partition plate; 3. Flow channel; 4. Heat dissipation mechanism; 41. Heat dissipation fins; 42. Heat dissipation channel; 43. Movable mechanism; 44. Flow mechanism; 431. Impeller; 432. Rotating shaft one; 433. Rotating shaft two; 434. Swing plate; 435. Drive chamber; 4351. Turntable; 4352. Transmission arm; 4353. Connector; 4354. Gear; 4355. Moving plate; 4356. Slot one; 4357. Rack; 4358. Slot two; 441. Top plate; 442. Main water supply pipe; 443. Secondary water supply pipe; 444. Water pump. Detailed Implementation
[0025] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 This application will be described in further detail below.
[0026] A wave-shaped finned radiator, reference Figure 1 The wave-shaped finned heat sink provided in this application adopts the following technical solution: it includes a main board 1, and at least two sets of partitions 2 are fixedly connected to the left and right ends of the top surface of the main board 1. There are flow channels 3 between adjacent sets of partitions 2 for fluid to flow. A heat dissipation mechanism 4 is connected to the top middle end of the main board 1, and the fluid can be cooled by the heat dissipation mechanism 4.
[0027] Reference Figure 2 Figure 3 and Figure 6The heat dissipation mechanism 4 includes heat dissipation fins 41, heat dissipation grooves 42, a movable mechanism 43, and a flow mechanism 44. At least two sets of wave-shaped heat dissipation fins 41 are fixedly connected to the top center of the main board 1. The heat dissipation fins 41 are arranged in an inverted trapezoidal shape. The wave-shaped heat dissipation fins 41 increase the residence time of the fluid and expand the contact area between the fluid and the heat dissipation fins 41, allowing for more stable heat exchange and thus improving the overall heat exchange efficiency of the radiator. A heat dissipation groove 42 is formed between the two sets of heat dissipation fins 41, and a movable mechanism 43 is connected to the right end of the heat dissipation fins 41 corresponding to the flow groove 3. The movable mechanism 43 is located at the front... Each of the rear heat dissipation slots 42 is fixedly connected with at least two sets of turbulent flow elements. The turbulent flow elements are teardrop-shaped, thicker on the right and thinner on the left. When the fluid flows in the heat dissipation slots 42, it impacts the turbulent flow elements, generating local flow resistance and breaking the laminar flow state of the fluid. This can increase the Nusselt number and optimize the heat dissipation performance. Furthermore, each of the top surfaces of the partition plate 2 is fixedly connected with a set of heat dissipation fins 41, forming a sealed space. The space of the heat dissipation slots 42 between the two sets of heat dissipation fins 41 is expanded, which can reduce the number of unnecessary heat dissipation fins 41. This can reduce production costs and facilitate the flow of coolant, ensuring the heat dissipation effect. The top of the heat dissipation fins 41 is provided with a flow mechanism 44.
[0028] Specifically, the fluid in the flow channel 3 can be cooled by the heat dissipation mechanism 4. By setting the wavy heat dissipation fins 41, the residence time of the fluid in the heat dissipation mechanism 4 is increased, so that the heat exchange time of the fluid is extended and the overall heat exchange efficiency of the radiator is improved.
[0029] Reference Figures 3-4 The active mechanism 43 includes an impeller 431, a first rotating shaft 432, a second rotating shaft 433, a swing plate 434, and a drive cavity 435. An impeller 431 is installed at the top of the right flow channel 3 near the heat dissipation fins 41. A set of first rotating shafts 432 is fixedly connected to the bottom of the impeller 431. A set of swing plates 434 is hinged to the right end of the heat dissipation fins 41 through the second rotating shaft 433. The swing plates 434 can swing back and forth, and when swinging, they can cover the right end opening of the front and rear heat dissipation channels 42. A corresponding drive cavity 435 is opened inside the main board 1. The bottom ends of the first rotating shaft 432 and the second rotating shaft 433 both extend into the drive cavity 435.
[0030] Specifically, when the impeller 431 is impacted by the fluid, it can drive the swing plate 434 to swing, thereby controlling the opening and closing of the two adjacent sets of heat dissipation slots 42, which is beneficial to the diversion of the fluid, increasing the effective heat dissipation area of the fluid, optimizing the flow velocity distribution, and improving the heat dissipation efficiency.
[0031] Reference Figures 4-5The bottom end of the rotating shaft 432 extends through to the right end of the drive cavity 435 and is fixedly connected to a set of turntables 4351. The rotation of the rotating shaft 432 can drive the turntables 4351 to rotate. A set of transmission arms 4352 is rotatably connected to the outer end of the bottom surface of the turntables 4351. A set of connecting parts 4353 is fixedly connected to the other end of the transmission arms 4352.
[0032] The bottom end of the second rotating shaft 433 extends through to the left end of the drive cavity 435 and is fixedly connected to a set of gears 4354. The rotation of gears 4354 can drive the second rotating shaft 433 to rotate. The drive cavity 435 is narrower on the left and wider on the right. A set of movable plates 4355 is slidably connected to the left end of the cavity, which can restrict the sliding path of the movable plates 4355. The inner end of the movable plates 4355 has a corresponding slot 4356 for the gears 4354. A rack 4357 is fixedly connected to the front end of the slot 4356. The rack 4357 and the gears 4354 are connected to each other. With four-phase meshing, when the moving plate 4355 slides, it can drive the gear 4354 to rotate through the rack 4357. The right end of the moving plate 4355 has a slot 4358, and the connecting piece 4353 can be inserted into the slot 4358 and can move back and forth within the slot 4358. When the turntable 4351 rotates and drives the transmission arm 4352 to rotate, the transmission arm 4352 can move back and forth within the slot 4358 through the connecting piece 4353, which improves the stability during movement and can push the moving plate 4355 to move.
[0033] Specifically, the rotation of the first rotating shaft 432 can drive the turntable 4351 and the transmission arm 4352 to rotate, and reciprocate to pull the moving plate 4355. This allows the moving plate 4355 to drive the gear 4354 and the second rotating shaft 433 to rotate through the rack 4357. This enables modular linkage between the impeller 431 and the swing plate 434, controls the opening and closing of two adjacent sets of heat dissipation slots 42, and facilitates the diversion of fluid.
[0034] Reference Figure 1 and Figure 7The heat dissipation mechanism 4 includes a top plate 441, a main water supply pipe 442, secondary water supply pipes 443, and a water pump 444. A set of top plates 441 is fixedly connected to the top of each heat dissipation fin 41. A set of main water supply pipes 442 is installed on the left and right ends of the top surface of each top plate 441. At least two sets of secondary water supply pipes 443 are fixedly connected to the ends of the two sets of main water supply pipes 442 that are far apart from each other. The other ends of the secondary water supply pipes 443 extend through the top plate 441 into the heat dissipation trough 42. The secondary water supply pipes 443 are all connected to the enlarged heat dissipation trough 42. Coolant flows in the main water supply pipe 442 at the left end. The coolant can be discharged into the heat dissipation tank 42 through the secondary water supply pipe 443. A set of water pumps 444 is installed at the right end of the heat dissipation tank 42. The outlet of the water pumps 444 is connected to the bottom end of the secondary water supply pipe 443 at the right end. The coolant in the heat dissipation tank 42 can be drawn out and discharged into the main water supply pipe 442 at the right end, so that the coolant is always flowing, which can ensure the cooling effect. The flow direction of the coolant is opposite to the flow direction of the fluid, forming a counter-current layout, thereby improving the overall heat dissipation efficiency.
[0035] Specifically, the coolant flows into the heat sink 42 through the left end water supply main pipe 442 and water supply secondary pipe 443, and is discharged from the right end water supply main pipe 442 and water supply secondary pipe 443 by the water pump 444, so as to realize the continuous flow of coolant and cool the fluid in the front and rear end heat sinks 42.
[0036] This application provides a wave-shaped finned radiator. A heat dissipation mechanism 4, located between the left and right flow channels 3, includes components such as heat dissipation fins 41, heat dissipation channels 42, a movable mechanism 43, and a flow mechanism 44. This mechanism cools the flowing fluid and extends the fluid's residence time through the wave-shaped fins 41, improving heat dissipation. The movable mechanism 43, located at the right end of the heat dissipation fins 41, includes components such as an impeller 431, a first rotating shaft 432, a second rotating shaft 433, a swing plate 434, and a drive chamber 435. The impeller 431 rotates due to fluid impact, which in turn drives the swing plate 434. 4. The oscillation mechanism controls the opening and closing of the openings of the two adjacent sets of heat dissipation slots 42, which can split the fluid, increase the effective heat dissipation area of the fluid, optimize the flow velocity distribution, and improve the heat dissipation efficiency. The flow mechanism 44, which is set at the top of the heat dissipation fins 41, includes components such as a top plate 441, a main water supply pipe 442, a secondary water supply pipe 443, and a water pump 444. Coolant can be injected into the heat dissipation slots 42 through the left-end main water supply pipe 442 and the secondary water supply pipe 443 to cool down the fluid in the two adjacent sets of heat dissipation slots 42. The coolant is then discharged through the right-end main water supply pipe 442 and the secondary water supply pipe 443 to ensure the flow of coolant and maintain the heat dissipation effect.
[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A wave-shaped finned heat sink, comprising a main board (1), wherein the top surface of the main board (1) is provided with no less than two sets of partitions (2) at both the left and right ends, and there are flow grooves (3) between adjacent sets of partitions (2). Its features are, The motherboard (1) is connected to a heat dissipation mechanism (4) at the top center. The heat dissipation mechanism (4) includes heat dissipation fins (41), heat dissipation grooves (42), movable mechanism (43) and flow mechanism (44). The main board (1) has at least two sets of wave-shaped heat dissipation fins (41) at the top center. A heat dissipation groove (42) is formed between the two sets of heat dissipation fins (41). The right end of the heat dissipation fins (41) located at the end of the flow groove (3) is connected to the movable mechanism (43). The top end of the heat dissipation fins (41) is fixedly connected to the flow mechanism (44). The active mechanism (43) includes an impeller (431), a first rotating shaft (432), a second rotating shaft (433), a swing plate (434), and a drive cavity (435). A set of impellers (431) is provided at the top of the flow channel (3) on the right end near the heat dissipation fins (41). A set of first rotating shafts (432) is connected to the bottom end of the impellers (431). A set of swing plates (434) is connected to the right end of the heat dissipation fins (41) through the second rotating shaft (433). A corresponding drive cavity (435) is provided at the inner end of the main board (1). The bottom ends of the first rotating shaft (432) and the second rotating shaft (433) both extend into the drive cavity (435). The heat dissipation mechanism (4) includes a top plate (441), a main water supply pipe (442), a secondary water supply pipe (443), and a water pump (444). The top of each heat dissipation fin (41) is provided with a set of top plates (441). The top surface of the top plate (441) is provided with a set of main water supply pipes (442) on both the left and right ends. The two sets of main water supply pipes (442) are provided with at least two sets of secondary water supply pipes (443) at the ends that are far apart from each other. The other ends of the secondary water supply pipes (443) extend through the top plate (441) into the heat dissipation groove (42). The right end of the heat dissipation groove (42) is provided with a set of water pumps (444). The outlet of the water pump (444) is connected to the bottom end of the secondary water supply pipe (443) on the right end.
2. The wave-shaped finned radiator according to claim 1, characterized in that, The bottom end of the rotating shaft (432) extends through to the right end of the drive cavity (435) and is connected to a set of turntables (4351). The bottom outer end of the turntable (4351) is connected to a set of transmission arms (4352), and the other end of the transmission arm (4352) is connected to a set of connectors (4353). The bottom end of the second rotating shaft (433) extends through to the left end of the drive cavity (435) and is connected to a set of gears (4354). The left end of the drive cavity (435) is provided with a set of movable plates (4355). The inner end of the movable plate (4355) is provided with a slot (4356) corresponding to the gear (4354). The front end of the slot (4356) is connected to a rack (4357). The right end of the movable plate (4355) is provided with a slot (4358). The connector (4353) can be inserted into the slot (4358).
3. A wave-shaped finned radiator according to claim 1, characterized in that, The heat dissipation fins (41) are arranged in an inverted trapezoidal shape.
4. A wave-shaped finned radiator according to claim 3, characterized in that, The top surface of the partition (2) is connected to a set of heat dissipation fins (41) at both the left and right ends, and the space of the heat dissipation groove (42) between the two sets of heat dissipation fins (41) is expanded.
5. A wave-shaped finned radiator according to claim 4, characterized in that, All the water supply sub-pipes (443) are connected to the expanded heat dissipation trough (42).
6. A wave-shaped finned radiator according to claim 1, characterized in that, The top openings of the two sets of flow channels (3) on the left and right sides are respectively equipped with a set of heat dissipation fins (41), and the heat dissipation fins (41) are provided with no less than two sets of turbulence components in the heat dissipation channels (42) at the front and rear ends.
7. A wave-shaped finned radiator according to claim 2, characterized in that, The drive cavity (435) is narrower on the left and wider on the right, and the movable plate (4355) can slide at the left end inside the drive cavity (435).
8. A wave-shaped finned radiator according to claim 2, characterized in that, The connector (4353) is engaged in the second slot (4358) and can move back and forth within the second slot (4358).
Citation Information
Patent Citations
Cooling heat dissipation structure for solar inverter
CN119364714A
Heat exchange structure
JP2020134109A
