Combined heat dissipation device based on module design

Abstract

The utility model discloses a combined heat dissipation device based on module design, which comprises a heat dissipation fan and a heat dissipation fin, the heat dissipation fin comprises a base and a plurality of heat dissipation fins, the base is connected with a heating component, the heat dissipation fins are parallelly mounted on the base at intervals, the base is of a split structure, a plurality of parallel mounting grooves are arranged on the upper end face of the base, and the heat dissipation fins are arranged in the mounting grooves. The installation grooves are used for being connected with the heat dissipation fins, the base and the heat dissipation fins are connected through welding, and the fan and the heat dissipation fins are connected through welding. The heat dissipation fins are of a plate-shaped structure and comprise the first fins and the second fins, sliding grooves are formed in the upper end faces of the first fins, the second fins are movably inserted into the sliding grooves, a plurality of corresponding adjusting through holes are formed in the first fins and the second fins, bolts penetrate through the adjusting through holes, and sealing rings are arranged between the first fins and the second fins.

Description

Technical Field

[0001] The utility model is a combined heat dissipation device based on module design. Background Art

[0002] As we all know, high temperature is the enemy of integrated circuits. High temperature will not only cause unstable system operation and shorten service life, but may even burn some components. The heat that causes high temperature does not come from outside the computer, but from inside the computer, or inside the integrated circuit. The function of the radiator is to absorb this heat and then dissipate it into or outside the chassis to ensure the normal temperature of computer components.

[0003] Usually, computers use both passive and active cooling methods, that is, the combination of heat sinks and fans. The heat dissipation performance of the heat sink depends on the thickness of its base and the Pin-Fin ratio of the fins, where Pin refers to the height of the fins of the heat sink, and Fin refers to the distance between two adjacent fins. However, the height of the fins is subject to the installation space of the mechanism. Therefore, in structures with different space sizes, the height of the fins will also change. Therefore, in order to maximize the heat dissipation performance of the heat sink, it is necessary to stator the specifications of the fins. However, in fact, the specifications of the fins are all specified. Therefore, structures with different space sizes can only choose relatively suitable fins, and therefore cannot exert the maximum heat dissipation performance. Utility Model Content

[0004] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide a combined heat dissipation device based on a module design.

[0005] A combined heat dissipation device based on a modular design includes a heat dissipation fan and a heat sink, the heat sink includes a base and a plurality of heat dissipation fins, the base is connected to a heat generating component, the heat dissipation fins are installed on the base in parallel and at intervals, the base is a plate-like structure, and a plurality of parallel mounting grooves are provided on its upper end surface, the mounting grooves are used to connect the heat dissipation fins, the base and the heat dissipation fins are connected by welding, and the fan and the heat dissipation fins are connected by welding;

[0006] The heat dissipation fins are of a split structure, and the heat dissipation fins include a first fin and a second fin. The upper end surface of the first fin is provided with a sliding groove, and the second fin is movably inserted in the sliding groove. The first fin and the second fin are provided with a plurality of corresponding adjustment through holes for passing bolts, and a sealing ring is provided between the first fin and the second fin.

[0007] Working principle: The height of the heat sink fins can be adjusted through the split structure, which can be applied to structures of different space sizes. The heat dissipation index of the heat sink mainly depends on the thickness of the base and the Pin-Fin ratio of the fins. Among them, Pin refers to the height of the fins of the heat sink, and Fin refers to the distance between two adjacent fins. However, the height of the fins is subject to the installation space of the mechanism. The higher the fins, the better the heat dissipation performance.

[0008] In order to reduce costs and ensure the quality of heat dissipation, the base is made of copper and the heat dissipation fins are made of aluminum. Pure copper is heavy and hard, so it is not suitable for making a radiator. The thermal conductivity of aluminum is much lower than that of copper. Therefore, the base is made of copper and the fins are made of aluminum, which is easy to process. The thermal conductivity is increased by changing the surface structure of the fins.

[0009] In order to further improve the heat dissipation performance, thermal grease is applied to the heat sink.

[0010] In order to ensure the heat dissipation performance, the cooling fan is arranged on the side of the heat sink, and the wind direction of the cooling fan passes through between the two heat sink fins. There are two ways to connect the cooling fan to the heat sink, one is to place it on the top of the heat sink, and the other is to place it on the side of the heat sink, namely the top-mounted type and the side-mounted type. The top-mounted type needs to change direction in the heat sink, which is easy to form a "windless zone", and the middle bearing part of the top-mounted traditional axial flow fan is easy to form a dead angle - "wind blind zone", but the center of the heat sink is in contact with the heat generating device (CPU core, etc.); the side-mounted fan and the duct-type heat sink are perfectly matched to make the air flow have only one direction, and there is no other adverse interference except the contact with the heat sink, and the wind resistance is small and the heat exchange efficiency is high. The air duct is the space between the two heat sink fins.

[0011] Compared with the top-mounted type, the side-mounted type not only has no wind blind spot, but also the airflow of the side-mounted fan can smoothly pass through the heat sink and blow out from the other side, which can blow the heat of the entire heat sink directly to the outside of the chassis along the fin gap, making the air flow in the chassis very smooth, thereby effectively reducing the overall temperature of the system. The top-mounted fan has a wind blind spot, and the airflow will inevitably generate vortices when it reaches the bottom, affecting the efficiency of the airflow and the heat dissipation effect.

[0012] In order to ensure the operation of the fan, the cooling fan includes a fixed plate, an inner fixed ring covering the edge of the fixed plate, a plurality of fan blades evenly distributed in an annular shape on the outside of the inner fixed ring, and an outer fixed ring fixed to the outsides of all the fan blades. The fan blades have a pleated structure, and the outer fixed ring has an annular base and an upright portion protruding from the base. The upright portion is provided with an external snap-in groove perpendicular to the base, and the outer side of the fan blade is provided with a claw that is inserted into the external snap-in groove.

[0013] In order to ensure the stable installation of the fan blades, a number of internal slots are evenly distributed on the outside of the inner fixing ring, a protrusion is provided on one side wall of the internal slot, and a locking hole matching the protrusion is provided on the inner side of the fan blade; an annular groove is provided on the inner side of the inner fixing ring for clamping the two sides of the edge of the fixing plate, the annular groove is connected with the internal slot, and a number of locking teeth are provided on the edge of the fixing plate for the inner side of the fan blade to penetrate.

[0014] In order to ensure the heat dissipation capacity of the fan, the total number of fan blades is more than 10.

[0015] In order to improve the heat dissipation capacity, the fan blades are narrow inside and wide outside.

[0016] In order to further improve the heat dissipation capability, the surfaces of the first fin and the second fin are roughened.

[0017] Beneficial effect: Compared with the prior art, the utility model can adjust the height of the heat dissipation fins through the split structure of the heat dissipation fins, and can be applied to structures with different space sizes; the heat dissipation index of the heat sink mainly depends on the thickness of the base and the Pin-Fin ratio of the fins, wherein Pin refers to the height of the fins of the heat sink, and Fin refers to the distance between two adjacent fins, but the height of the fins is subject to the installation space of the mechanism. The higher the fins, the better the heat dissipation performance. When installed in different structures, the height of the fins will also change accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the heat sink;

[0019] Figure 2 This is the front view of the heat sink fins;

[0020] Figure 3 It is a side view of the heat sink fins;

[0021] In the figure, 1, base, 2, heat sink fins, 3, first fins, 4, second fins. DETAILED DESCRIPTION

[0022] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0023] like Figure 1-3 As shown, a base 1, a heat dissipation fin 2, a first fin 3, and a second fin 4;

[0024] A combined heat dissipation device based on a modular design includes a heat dissipation fan and a heat sink, the heat sink includes a base 1 and a plurality of heat dissipation fins 2, the base 1 is connected to a heat generating component, the heat dissipation fins 2 are installed on the base 1 in parallel and at intervals, the base 1 is a plate-like structure, and a plurality of parallel installation grooves are provided on its upper end surface, the installation grooves are used to connect the heat dissipation fins 2, the base 1 and the heat dissipation fins 2 are connected by welding, and the fan and the heat sink are connected by welding;

[0025] The heat dissipation fin 2 is a split structure, and the heat dissipation fin 2 includes a first fin 3 and a second fin 4. The upper end surface of the first fin 3 is provided with a sliding groove, and the second fin 4 is movably inserted in the sliding groove. The first fin 3 and the second fin 4 are provided with a plurality of corresponding adjustment through holes for passing bolts. A sealing ring is provided between the first fin 3 and the second fin 4.

[0026] In this embodiment, the base 1 is made of copper, the heat sink fins 2 are made of aluminum, the heat sink is coated with thermal silicone grease, and the surfaces of the first fin 3 and the second fin 4 are roughened. Specifically, pure copper is heavy and hard, and is not suitable for making a heat sink, while the thermal conductivity of aluminum is much lower than that of copper. Therefore, the base 1 is made of copper, and the fins are made of aluminum, which is easy to process. The thermal conductivity is increased by changing the surface structure of the fins, and the contact area with the air is increased by roughening the surface of the fins to improve the heat dissipation capacity.

[0027] In the present embodiment, the cooling fan is arranged on the side of the heat sink, and the wind direction of the cooling fan passes through between the two heat sink fins 2. Specifically, there are two ways to connect the cooling fan to the heat sink, one is to place it on the top of the heat sink, and the other is to place it on the side of the heat sink, namely, top-mounted and side-mounted. The top-mounted type needs to change direction in the heat sink, which is easy to form a "windless zone", and the middle bearing part of the top-mounted traditional axial flow fan is easy to form a dead angle - "wind blind spot", but the center of the heat sink is in contact with the heat generating device (CPU core, etc.); the side-mounted fan and the duct-type heat sink are perfectly matched to make the air flow have only one flow direction, and there is no other adverse interference except the contact with the heat sink, and the wind resistance is small and the heat exchange efficiency is high. The duct is the space between the two heat sink fins 2.

[0028] Compared with the top-mounted type, the side-mounted type not only has no wind blind spot, but also the airflow of the side-mounted fan can smoothly pass through the heat sink and blow out from the other side, which can blow the heat of the entire heat sink directly to the outside of the chassis along the fin gap, making the air flow in the chassis very smooth, thereby effectively reducing the overall temperature of the system. The top-mounted fan has a wind blind spot, and the airflow will inevitably generate vortices when it reaches the bottom, affecting the efficiency of the airflow and the heat dissipation effect.

[0029] In this embodiment, the cooling fan includes a fixed plate, an inner fixed ring covering the edge of the fixed plate, a plurality of fan blades evenly distributed in a ring shape on the outside of the inner fixed ring, and an outer fixed ring fixed to the outsides of all the fan blades. The fan blades have a pleated structure, and the outer fixed ring has an annular base and an upright portion protruding from the base. The upright portion is provided with an external snap-in groove perpendicular to the base, and the outer side of the fan blade is provided with a claw that is engaged with the external snap-in groove.

[0030] In this embodiment, a plurality of inner snap seams are evenly distributed on the outside of the inner fixing ring, a convex is provided on one side wall of the inner snap seam, and a snap hole matching the convex is provided on the inner side of the fan blade; an annular groove is provided on the inner side of the inner fixing ring to clamp the two sides of the edge of the fixing plate, the annular groove is connected with the inner snap seam, and a plurality of snap teeth are provided on the edge of the fixing plate for the inner side of the fan blade to penetrate. Specifically, the power is highest when the air is thrown out of the cooling fan radially, so the fan blade needs to be kept in an upright position. When the claw is clamped into the outer snap seam, the fan blade can maintain an upright position, and the structure of the upright part can provide support force on both sides of the fan blade, so that the fan blade is not easily deflected by the wind.

[0031] In this embodiment, the total number of fan blades is more than 10, and the fan blades are narrow inside and wide outside.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined heat dissipation device based on module design, characterized in that: It includes a heat dissipation fan and a heat sink, wherein the heat sink includes a base and a plurality of heat dissipation fins, the base is connected to a heat generating component, the heat dissipation fins are installed on the base in parallel and at intervals, the base is a split structure, and a plurality of parallel mounting grooves are provided on its upper end surface, the mounting grooves are used to connect the heat dissipation fins, the base is connected to the heat dissipation fins by welding, and the fan is connected to the heat dissipation fins by welding; The heat dissipation fins are of a plate-like structure, and the heat dissipation fins include a first fin and a second fin. The upper end surface of the first fin is provided with a sliding groove, and the second fin is movably inserted in the sliding groove. The first fin and the second fin are provided with a plurality of corresponding adjustment through holes, and the through holes are used to pass bolts. A sealing ring is provided between the first fin and the second fin.

2. A combined heat dissipation device based on module design according to claim 1, characterized in that: The base is made of copper, and the heat sink fins are made of aluminum.

3. The combined heat dissipation device based on module design according to claim 1, characterized in that: The heat sink is coated with heat dissipation silicone grease.

4. The combined heat dissipation device based on module design according to claim 1, characterized in that: The cooling fan is arranged on the side of the cooling fin, and the wind direction of the cooling fan passes through between the two cooling fins.

5. The combined heat dissipation device based on module design according to claim 1, characterized in that: The cooling fan includes a fixed plate, an inner fixed ring covering the edge of the fixed plate, a plurality of fan blades evenly distributed in an annular shape on the outside of the inner fixed ring, and an outer fixed ring fixed to the outsides of all the fan blades, the fan blades are in a pleated structure, the outer fixed ring has an annular base and an upright portion protruding from the base, the upright portion is provided with an external snap-in seam perpendicular to the base, and the outer side of the fan blade is provided with a claw that is engaged with the external snap-in seam.

6. The combined heat dissipation device based on module design according to claim 5, characterized in that: The outer side of the inner fixing ring is evenly distributed with a plurality of inner snap-in slots, a side wall inside the inner snap-in slot is provided with a protrusion, and the inner side of the fan blade is provided with a snap-in hole matching the protrusion; the inner side of the inner fixing ring is provided with an annular groove for clamping the two sides of the edge of the fixing plate, the annular groove is connected with the inner snap-in slot, and the edge of the fixing plate is provided with a plurality of snap-in teeth for the inner side of the fan blade to penetrate.

7. The combined heat dissipation device based on module design according to claim 6, characterized in that: The total number of the fan blades is more than 10.

8. The combined heat dissipation device based on module design according to claim 6, characterized in that: The fan blade is narrow inside and wide outside.

9. The combined heat dissipation device based on module design according to claim 1, characterized in that: The surfaces of the first fin and the second fin are roughened.

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