Multi-layer three-dimensional heat sink assembly

Abstract

This invention discloses a multi-layered three-dimensional heat sink assembly. The heat sink assembly has several parallel and spaced heat dissipation channels on its inner side. Each heat dissipation channel has a stepped structure with an air inlet section height greater than the air outlet section height. This invention forms a three-dimensional multi-layered heat dissipation structure. The structure is simple, absorbs heat quickly, and forms a three-dimensional heat dissipation cycle, which can dissipate heat quickly and efficiently. This is beneficial for the rapid cooling of heat-generating components and improves the service life and operating speed of electronic components.

Description

Technical Field

[0001] This invention relates to a heat sink, and more particularly to a multi-layered three-dimensional heat sink assembly. Background Technology

[0002] The electronic components in a laptop generate a lot of heat, which needs to be dissipated by a heat sink. Common heat sinks are square or ring-shaped, with one end facing the heat-generating component. They dissipate heat through a heat dissipation channel. However, because they are all regular shapes, the airflow speed inside the heat sink assembly is very slow, resulting in low heat dissipation efficiency and easy damage to the heat-generating component. Summary of the Invention

[0003] To overcome the above shortcomings, the present invention provides a multi-layered three-dimensional heat sink assembly with high heat dissipation efficiency.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a multi-layer three-dimensional heat sink assembly, wherein a plurality of parallel and spaced heat dissipation channels are formed on the inner side of the heat sink assembly, and the heat dissipation channels are stepped structures in which the height of the air inlet section is greater than the height of the air outlet section.

[0005] As a further improvement of the present invention, at least two heat dissipation grooves are formed on the air inlet end face of the heat sink assembly in the air inlet direction, and the heat dissipation grooves are arranged in parallel and spaced apart along the height direction of the heat sink assembly.

[0006] As a further improvement of the present invention, the heat sink assembly forms a double-layer air outlet structure at one end along the heat dissipation channel arrangement direction. The double-layer air outlet structure includes a bottom air outlet channel and an upper air outlet channel. The upper air outlet channel is stacked above the bottom air outlet channel, and the length of the upper air outlet channel is less than that of the bottom air outlet channel, and the height of the upper air outlet channel is also less than that of the bottom air outlet channel.

[0007] As a further improvement of the present invention, the upper end of the bottom air outlet channel is formed with a hollow structure, and the lower end of the upper air outlet channel is connected to the bottom air outlet channel through the hollow structure.

[0008] As a further improvement of the present invention, the other end of the heat sink assembly along the heat dissipation channel arrangement direction is a single-layer air outlet structure, and the single-layer air outlet structure is the same height and length as the aforementioned bottom air outlet channel. A hollow slot communicating with the interior of the heat dissipation channel is formed on the upper surface of the single-layer air outlet structure, and the side wall of the hollow slot facing the air outlet direction is aligned and connected with the side wall of the hollow structure of the bottom air outlet structure facing the air outlet direction. The side wall of the hollow slot facing the wind direction is aligned and connected with the air outlet end face of the upper air outlet channel. There is a set distance between the two side walls of the hollow slot along the air outlet direction.

[0009] As a further improvement of the present invention, the upper end of the heat sink assembly along the height direction of the heat dissipation channel is a stepped structure in which the height of the air inlet section is higher than the height of the air outlet section, and the lower end of the heat sink assembly along the height direction of the heat dissipation channel is formed by connecting an inclined air inlet section and a horizontal air outlet section, and the height of the inclined air inlet section away from the air outlet section is higher than the height of the end closer to the air outlet section.

[0010] As a further improvement of the present invention, the tilt angle of the inclined air intake section of the heat sink assembly along the heat dissipation channel arrangement direction increases in stages.

[0011] As a further improvement of the present invention, the inclination angles of the inclined air inlet section of the heat sink assembly along the heat dissipation channel arrangement direction are 163.2°, 168.08° and 174.12° respectively.

[0012] As a further improvement of the present invention, the lower surface of the air outlet section where the heat sink assembly connects with the air inlet section with the largest tilt angle forms a stepped structure with a height increase.

[0013] As a further improvement of the present invention, the heat sink assembly is composed of several heat sinks with U-shaped cross-sections stacked in parallel at intervals, and two adjacent heat sinks are fastened together by a snap-fit ​​structure, forming a heat dissipation channel between two adjacent heat sinks.

[0014] The beneficial technical effects of this invention are as follows: This invention forms a three-dimensional, multi-layered heat dissipation structure by splicing and stacking different heat dissipation fins. It has a large air inlet, absorbs heat quickly, and has at least two parallel grooves on the end face of the air inlet, which accelerates the flow of hot and cold air. One end of the air outlet section forms a double-layered air outlet structure, with a drop between the upper and lower air outlet channels, as well as between the upper air outlet channel and the single-layered air outlet channel at the other end of the heat dissipation fin assembly. Together, the upper air outlet channel, the lower air outlet channel, and the single-layered air outlet channel form a three-dimensional heat dissipation cycle, which is beneficial for accelerating heat dissipation. The air inlet of the heat dissipation fin assembly also forms a stepped drop with a progressively increasing tilt angle, which can more effectively accelerate heat dissipation from the heat source. This invention has a simple structure, forming a multi-layered, three-dimensional heat dissipation structure that can quickly and efficiently dissipate heat, which is beneficial for rapidly cooling heat-generating components and improving the lifespan and operating speed of electronic components. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is the front view of the present invention;

[0017] Figure 3 A top view of the present invention;

[0018] Figure 4 This is a bottom view of the present invention;

[0019] Figure 5 This is a rear view of the present invention;

[0020] Figure 6 This is the left view of the present invention;

[0021] Figure 7 This is the right view of the present invention. Detailed Implementation

[0022] Example: A multi-layered three-dimensional heat sink assembly, wherein several parallel and spaced heat dissipation channels 1 are formed on the inner side of the heat sink assembly. The heat dissipation channel 1 has a stepped structure in which the height of the air inlet section 2 is greater than the height of the air outlet section 3. This heat sink assembly is used in a laptop computer for heat dissipation. It forms an L-shaped columnar structure with a large air inlet for rapid heat absorption and a small air outlet to facilitate rapid airflow within the heat dissipation channels 1, achieving a high-speed heat dissipation effect.

[0023] The heat sink assembly has at least two heat dissipation grooves 4 formed on the air inlet end face in the air inlet direction, and the heat dissipation grooves 4 are arranged parallel to each other along the height direction of the heat sink assembly. Providing two parallel heat dissipation grooves 4 on the air inlet end face can accelerate the flow of hot and cold air and improve heat dissipation efficiency.

[0024] The heat sink assembly forms a double-layer air outlet structure at one end along the arrangement direction of the heat dissipation channel 1. This double-layer air outlet structure includes a bottom air outlet channel 5 and an upper air outlet channel 6. The upper air outlet channel 6 is stacked above the bottom air outlet channel 5, and the length and height of the upper air outlet channel 6 are both less than those of the bottom air outlet channel 5. The air outlet structure is divided into two layers. The bottom air outlet channel 5 is a complete row with a large opening, playing the main role in heat dissipation. The upper air outlet channel 6 has a small opening, creating a spatial difference with the bottom air outlet channel 5, and together they form a three-dimensional heat dissipation circulation to accelerate heat dissipation.

[0025] The upper end of the bottom air outlet channel 5 has a hollow structure, and the lower end of the upper air outlet channel 6 is connected to the bottom air outlet channel 5 through this hollow structure. After entering from the air inlet, hot air flows in the heat dissipation channel 1 and is finally discharged from the air outlets of the upper air outlet channel 6 and the bottom air outlet channel 5 respectively.

[0026] The other end of the heat sink assembly along the heat dissipation channel 1 is a single-layer air outlet structure 7, which is the same height and length as the aforementioned bottom air outlet channel 5. A hollow slot 8 is formed on the upper surface of the single-layer air outlet structure 7, which communicates with the interior of the heat dissipation channel 1. The side wall of the hollow slot 8 facing the air outlet direction is aligned and connected with the side wall of the hollow structure of the bottom air outlet structure facing the air outlet direction. The side wall of the hollow slot 8 facing the wind direction is aligned and connected with the air outlet end face of the upper air outlet channel 6. There is a set distance between the two side walls of the hollow slot 8 along the air outlet direction. The bottom air outlet duct 5 and the single-layer air outlet duct form an integrated structure with the same height and length, while the upper air outlet duct 6 forms a semi-row structure. This creates two spatial differences in height and direction between the upper air outlet duct 6 and the bottom air outlet duct 5 and the single-layer air outlet duct. Together with the bottom air outlet duct 5 and the single-layer air outlet duct, they form a three-dimensional heat dissipation cycle, resulting in faster heat dissipation. Furthermore, a hollow slot 8 extending along the arrangement direction of the heat dissipation channel 1 is provided on the air outlet section 3 of the heat sink assembly, which helps to accelerate the airflow within the heat dissipation channel 1 and speed up heat dissipation. The gap between the air outlet of the upper air outlet duct 6 and the bottom air outlet duct 5 forms a buffer, preventing the airflow from colliding with the hollow structure sidewall of the bottom air outlet duct 5 and causing turbulence, which is conducive to the rapid and smooth flow of air.

[0027] The upper end of the heat sink assembly along the height of the heat dissipation channel 1 has a stepped structure where the height of the air inlet section 2 is higher than that of the air outlet section 3. The lower end of the heat sink assembly along the height of the heat dissipation channel 1 is formed by connecting an inclined air inlet section 2 and a horizontal air outlet section 3, with the height of the inclined air inlet section 2 away from the air outlet section 3 being higher than the height of the end closer to the air outlet section 3. The inclined structure of the air inlet section 2 of the heat sink assembly guides the airflow and accelerates its flow.

[0028] The angle of inclination of the inclined air inlet section 2 of the heat sink assembly along the heat dissipation channel 1 increases in stages. The air inlet of the heat sink assembly also has a stepped drop, which can more effectively accelerate heat dissipation from the heat source.

[0029] The tilt angles of the inclined air inlet section 2 of the heat sink assembly along the heat dissipation channel 1 are 163.2°, 168.08° and 174.12° respectively.

[0030] The lower surface of the air outlet section 3, which connects the heat sink assembly with the air inlet section 2 with the largest tilt angle, forms a stepped structure with a raised height.

[0031] The heat sink assembly is composed of several U-shaped heat sinks stacked in parallel at intervals. Two adjacent heat sinks are fastened together by a snap-fit ​​structure, forming a heat dissipation channel 1 between adjacent heat sinks. The vertically extending bottom surface of each heat sink forms the partition surface of each heat dissipation channel 1. Multiple snap-fit ​​connection points are formed on the upper and lower sidewalls to achieve the snap-fit ​​connection of adjacent heat sinks. The heat sinks can form different shapes depending on their position in the heat sink assembly. It is composed of four different heat sink assemblies: the first type is an L-shaped structure with a small angle at the bottom surface of the air inlet section 2; the second type is a two-step structure with a small angle at the bottom surface of the air inlet section 2; the third type is a two-step structure with a medium angle at the bottom surface of the air inlet section 2; and the fourth type is a two-step structure with a large angle at the bottom surface of the air inlet section 2. Multiple heat sinks of the first, second, third, and fourth types are stacked and assembled in sequence to form a multi-layered heat dissipation structure.

Claims

1. A multi-layered three-dimensional heat sink assembly, characterized by: The heat sink assembly has several parallel and spaced heat dissipation channels (1) on its inner side. The heat dissipation channel is a stepped structure in which the height of the air inlet section (2) is greater than the height of the air outlet section (3). The heat sink assembly has at least two heat dissipation grooves (4) on the air inlet end face in the air inlet direction. Each heat dissipation groove is arranged parallel and spaced along the height direction of the heat sink assembly. The heat sink assembly forms a double-layer air outlet structure at one end along the heat dissipation channel arrangement direction. The double-layer air outlet structure includes a bottom air outlet channel (5) and an upper air outlet channel (6). The upper air outlet channel is stacked above the bottom air outlet channel. The length of the upper air outlet channel is less than that of the bottom air outlet channel, and the height of the upper air outlet channel is also less than that of the bottom air outlet channel. The upper end of the bottom air outlet channel forms a hollow structure. The lower end of the upper air outlet channel is connected to the bottom air outlet channel through the hollow structure. The inclination angle of the inlet section of the heat sink assembly increases in stages along the heat dissipation channel arrangement direction. The lower surface of the air outlet section where the heat sink assembly connects with the inlet section with the largest inclination angle forms a stepped structure with increased height.

2. The multi-layered three-dimensional heat sink assembly according to claim 1, characterized in that: The other end of the heat sink assembly along the heat dissipation channel arrangement direction is a single-layer air outlet structure (7), and the single-layer air outlet structure is the same height and length as the aforementioned bottom air outlet channel. A hollow slot (8) communicating with the interior of the heat dissipation channel is formed on the upper surface of the single-layer air outlet structure. The side wall of the hollow slot facing the air outlet direction is aligned and connected with the side wall of the hollow structure of the bottom air outlet structure facing the air outlet direction. The side wall of the hollow slot facing the wind direction is aligned and connected with the air outlet end face of the upper air outlet channel. There is a set distance between the two side walls of the hollow slot along the air outlet direction.

3. The multi-layered three-dimensional heat sink assembly according to claim 1, characterized in that: The upper end of the heat sink assembly along the height direction of the heat dissipation channel is a stepped structure in which the height of the air inlet section is higher than the height of the air outlet section. The lower end of the heat sink assembly along the height direction of the heat dissipation channel is formed by connecting an inclined air inlet section and a horizontal air outlet section, and the height of the inclined air inlet section away from the air outlet section is higher than the height of the end closer to the air outlet section.

4. The multi-layered three-dimensional heat sink assembly according to claim 1, characterized in that: The tilt angles of the air inlet section of the heat sink assembly along the heat dissipation channel arrangement are 163.2°, 168.08° and 174.12°, respectively.

5. The multi-layered three-dimensional heat sink assembly according to claim 1, characterized in that: The heat sink assembly is composed of several U-shaped heat sinks stacked in parallel at intervals. Two heat sinks connected together are fastened together by a snap-fit ​​structure, and a heat dissipation channel is formed between two adjacent heat sinks.

Images