Heat dissipation device for high-heat-flux heat transfer

Abstract

The utility model discloses a heat dissipation device with high heat flux heat transfer, which belongs to the technical field of heat dissipation devices and comprises a base, horizontal fins, heat pipes and a fan, the horizontal fins are horizontally stacked at the top of the base at equal intervals, the heat pipes are uniformly mounted at the bottom of the base, two ends of each heat pipe vertically penetrate to the tops of the horizontal fins, and the fan is mounted on the base. A fan is installed on one side of the horizontal fin, and vertical fins are evenly and vertically arranged on the side, away from the fan, of the horizontal fin. The vertical fins are evenly arranged between the horizontal fins, the vertical fins on the two sides of the horizontal fins incline towards one side of the fan, airflow can be guided to evenly pass through the fins in the using process, the heat dissipation effect is ensured, meanwhile, the fan does not need to be selected according to the sizes of the fins, practicability is higher, and the heat dissipation effect is better. In addition, the vertical fins are arranged, so that the supporting stability of the horizontal fins can be improved, the contact area between the horizontal fins and airflow is increased, and the heat dissipation effect in the using process is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation device, in particular to a high heat flux density heat dissipation device, belongs to heat dissipation device technical field. BACKGROUND

[0002] The high heat flux density heat dissipation device is designed for the heat source generating a large amount of heat (i.e. high heat flux density) on the unit area, which can quickly and efficiently dissipate the heat to ensure the normal operation of the heat source equipment. Common heat dissipation devices include heat pipe radiators, micro-channel radiators and jet impact radiators.

[0003] In the prior art, the utility model discloses a heat dissipation device with double-layer heat pipes in the application number 202320562879.3. In order to solve the technical problem that the existing CPU heat dissipation device adopts a single-layer heat pipe structure for heat dissipation, the number of heat pipes placed in the heat dissipation device is limited, which leads to the fact that the heat conduction capacity of the single-layer heat pipe heat dissipation device cannot meet the needs of high-power heat dissipation. The two ends of the first heat pipe are embedded in the first mounting hole, the two ends of the second heat pipe are embedded in the second mounting hole, and the second heat pipe is located on the inner side of the first heat pipe. A heat dissipation device with a double-layer heat pipe structure is formed, which allows the base and the heat dissipation device to accommodate more heat pipes. The heat pipe has the advantage of extremely fast heat transfer speed, thereby realizing more efficient heat conduction and making the heat conduction speed faster. The heat dissipation device improves the heat dissipation speed and heat dissipation power of the heat dissipation device, thereby meeting the needs of high-power heat dissipation. The upper and lower double-layer heat pipe stacking structure design effectively improves the heat dissipation speed and heat dissipation power of the heat dissipation device without increasing the space of the base and the volume of the heat dissipation device, effectively solving the problem of insufficient heat dissipation of the single-layer heat pipe heat dissipation device, and having strong practicality.

[0004] However, the above-mentioned application still has some deficiencies:

[0005] During the use of the heat dissipation device, a heat dissipation fan is required for use. Since the heat dissipation fan transports air flow horizontally, in order to ensure uniform heat dissipation of the heat pipe, the heat dissipation fan needs to be selected according to the size of the fin. A larger heat dissipation fan not only increases the energy consumption of the device, but also increases the occupied space of the device. In addition, when the number of heat pipes increases, the distance between the heat pipes becomes relatively small, which may cause heat interference, resulting in uneven heat transfer and reduced heat dissipation efficiency of some heat pipes, and the performance advantages of each heat pipe cannot be fully utilized.

[0006] Therefore, a high heat flux density heat dissipation device is designed to optimize the above-mentioned problems. Utility model content

[0007] The utility model discloses a main purpose is to provide a high heat flux density heat transfer's heat sink to solve the problem of above -mentioned background art.

[0008] The utility model discloses a purpose can reach by adopting following technical scheme:

[0009] A high heat flux density heat transfer's heat sink, including base, horizontal fin, heat pipe and fan, horizontal fin equal interval horizontal stack setting at the top of base, the bottom of base evenly installs heat pipe, both ends of heat pipe are vertically through to the top of horizontal fin, one side of horizontal fin is installed with fan, and the side of horizontal fin away from fan is evenly vertically provided with vertical fin, and vertical fin is inserted between horizontal fin, and the vertical fin of both ends of horizontal fin all inclines to the direction of fan, and the end of vertical fin is equipped with positioning assembly between vertical fin and horizontal fin.

[0010] Preferably: the both sides of base top are all provided with mounting hole, and the middle position of base top is all provided with fin.

[0011] Preferably: the side of vertical fin is evenly provided with bayonet, and the thickness of bayonet is same with horizontal fin, and the bayonet is clamped on the surface of horizontal fin.

[0012] Preferably: positioning assembly includes U-shaped clamp and socket, and both ends of U-shaped clamp are all provided with clamping hook, and the socket that is matched with clamping hook is set up on horizontal fin, and the clamping hook of U-shaped clamp end is inserted into the inside of socket, and the middle position of U-shaped clamp is clamped on the outside of vertical fin.

[0013] Preferably: the upper and lower ends of vertical fin outside are all provided with clamping groove, and the clamping groove is parallel to the thickness direction of vertical fin, and the middle position of U-shaped clamp is clamped in the inside of clamping groove.

[0014] Preferably: heat pipe includes flat section, cylindrical section and flat section, and the flat section is fixed at the bottom of base, and the bottom of flat section is flush with the bottom surface of base, and both ends of flat section are all provided with cylindrical section, and the top end of cylindrical section is all provided with flat section vertically, and flat section vertically penetrates horizontal fin.

[0015] Preferably: the flat section is located at the outside of vertical fin of both ends of horizontal fin respectively, and the flat section is parallel between flat section and vertical fin.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1. The utility model discloses a vertical fin is provided with between horizontal fin even, and the vertical fin of horizontal fin both sides is to the side of fan and inclines, can guide the airflow even through the fin in the process of using, while ensuring the heat dissipation effect, need not select the fan according to the size of fin, the practicality is higher, in addition the setting of vertical fin can improve the support stability of horizontal fin and increase the contact area with airflow, improve the heat dissipation effect in the process of using.

[0018] 2. The utility model discloses a flat section of the end of heat pipe is set up, can improve the contact effect of airflow and heat pipe, and the flat section is parallel between the vertical fin, and the resistance effect of airflow is smaller, and the heat dissipation effect is better. ACCURACY OF DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 It is the heat pipe structure diagram of the utility model;

[0021] Figure 3 It is the vertical fin structure diagram of the utility model;

[0022] Figure 4 It is the utility model's Figure 1 It is the enlarged view of A place in the middle.

[0023] In the drawing: 1, base;101, mounting hole;

[0024] 2, horizontal fin;

[0025] 3, heat pipe;301, flat section;302, cylindrical section;303, flat section;

[0026] 4, fan;

[0027] 5, vertical fin;501, bayonet;

[0028] 6, positioning assembly;601, U-shaped clamp;602, jack;603, clamping groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment.

[0030] Therefore, the following detailed description of embodiments of the present application is not intended to limit the scope of the present application as claimed, but merely represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0032] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0034] Embodiment 1

[0035] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the present embodiment proposes a high heat flux heat transfer heat dissipation device, which comprises a base 1, horizontal fins 2, heat pipes 3 and a fan 4. The horizontal fins 2 are arranged at equal intervals and horizontally stacked on the top of the base 1. The base 1 is uniformly provided with heat pipes 3 at the bottom. Both ends of the heat pipes 3 are vertically penetrated to the top of the horizontal fins 2. The fan 4 is installed on one side of the horizontal fins 2. The vertical fins 5 are uniformly and vertically arranged on the side of the horizontal fins 2 away from the fan 4, and the vertical fins 5 are inserted between the horizontal fins 2. The vertical fins 5 at both ends of the horizontal fins 2 are inclined towards the direction of the fan 4. The end of the vertical fin 5 and the horizontal fin 2 are provided with a positioning assembly 6.

[0036] When assembled, first, the base 1, horizontal fins 2, heat pipes 3 and fans 4 are assembled into a heat pipe radiator, then the vertical fins 5 are evenly inserted into the side of the horizontal fins 2 away from the fan 4, the horizontal fins 2 are supported between them by the vertical fins 5, and the airflow is guided, when installing, the base 1 is attached to the heat source and fixed on the mounting frame with screws, when dissipating heat, the heat generated by the heat source is transmitted to the horizontal fins 2 through the heat pipes 3, the fan 4 is started, external cold air is extracted and blown towards the inside of the horizontal fins 2, heat dissipation is performed, in addition, the airflow is diffused to the end under the guidance of the vertical fins 5, so that the airflow passes through each part of the vertical fins 5 to dissipate heat.

[0037] Example 2

[0038] The scheme in Example 1 is further introduced below in combination with a specific working mode, see the description below:

[0039] As shown in Figure 1 , as a preferred embodiment, on the basis of the above mode, further, mounting holes 101 are provided on both sides of the top of the base 1, and heat dissipation fins are provided at the middle position of the top of the base 1, during installation, the screws are passed through the mounting holes 101 to fix the base 1, and during heat dissipation, the heat dissipation fins are used to accelerate the heat dissipation effect.

[0040] As shown in Figure 3 , as a preferred embodiment, on the basis of the above mode, further, the side edges of the vertical fins 5 are evenly provided with bayonets 501, the bayonets 501 are the same thickness as the horizontal fins 2, and the bayonets 501 are clamped on the surface of the horizontal fins 2.

[0041] During installation of the vertical fins 5, the bayonets 501 are aligned with the upper horizontal fins 2, then the vertical fins 5 are inserted into the horizontal fins 2, the vertical fins 5 at the middle position are directly opposite the fan 4, and the vertical fins 5 at both ends of the horizontal fins 2 are inclined towards the direction of the fan 4, so as to uniformly diffuse and guide the airflow entering the inside of the horizontal fins 2 to the end.

[0042] As shown in Figure 4 , as a preferred embodiment, on the basis of the above mode, further, the positioning assembly 6 includes a U-shaped clamping piece 601 and a bushing 602, the two ends of the U-shaped clamping piece 601 are provided with clamping hooks, the horizontal fins 2 are provided with bushings 602 matched with the clamping hooks, the clamping hooks at the ends of the U-shaped clamping piece 601 are inserted into the inside of the bushings 602, and the U-shaped clamping piece 601 is clamped on the outside of the vertical fins 5 at the middle position.

[0043] After the vertical fin 5 is inserted into the installation, the middle position of the U-shaped clamping piece 601 is attached to the outer end of the vertical fin 5, and then the clamping hooks at both ends of the U-shaped clamping piece 601 are inserted into the inside of the insertion hole 602, and the vertical fin 5 is stably positioned under the elastic force of the U-shaped clamping piece 601.

[0044] As shown in Figure 4 , as a preferred embodiment, on the basis of the above-mentioned mode, further, the upper and lower ends of the outer side of the vertical fin 5 are provided with clamping grooves 603, the clamping grooves 603 are parallel to the thickness direction of the vertical fin 5, and the middle position of the U-shaped clamping piece 601 is clamped in the inside of the clamping groove 603, so that the U-shaped clamping piece 601 is stably positioned when positioning the vertical fin 5.

[0045] As shown in Figure 2 , as a preferred embodiment, on the basis of the above-mentioned mode, further, the heat pipe 3 includes a flat section 301, a cylindrical section 302 and a flat section 303, the flat section 301 is fixed at the bottom of the base 1, and the bottom of the flat section 301 is flush with the bottom surface of the base 1, both ends of the flat section 301 are inclinedly provided with the cylindrical section 302, the top end of the cylindrical section 302 is vertically provided with the flat section 303, and the flat section 303 vertically penetrates the horizontal fin 2, the setting of the flat section 301 can ensure the attachment effect with the heat source, the cylindrical section 302 is the initial shape of the heat pipe 3, and the setting of the flat section 303 can increase the contact area with the horizontal fin 2 and improve the heat dissipation effect.

[0046] As shown in Figure 1 , as a preferred embodiment, on the basis of the above-mentioned mode, further, the flat section 303 is located outside the vertical fin 5 at both ends of the horizontal fin 2, and is parallel between the flat section 303 and the vertical fin 5, when the airflow passes through the horizontal fin 2, the vertical fin 5 changes the flow direction of the guided gas, and the flow direction of the gas is parallel to the flat section 303, which reduces the resistance to the gas and improves the heat dissipation effect.

[0047] Example 3

[0048] The schemes in examples 1 and 2 will be further introduced in combination with specific working modes, which will be described in detail below:

[0049] When assembling, first, the base 1, the horizontal fins 2, the heat pipe 3 and the fan 4 are assembled into a heat pipe radiator, then the bayonet 501 on the vertical fin 5 is aligned with the upper horizontal fin 2, is inserted into the side of the horizontal fin 2 far from the fan 4, the vertical fin 5 in the middle position is opposite to the fan 4, and the vertical fin 5 at both ends of the horizontal fin 2 is inclined to the direction of the fan 4, the vertical fin 5 can support the horizontal fin 2 and increase the contact area of the device and air, after the insertion of the vertical fin 5, the middle position of the U-shaped clamping piece 601 is attached in the clamping groove 603 of the outer end of the vertical fin 5, then the clamping hooks at both ends of the U-shaped clamping piece 601 are inserted into the insertion hole 602, the vertical fin 5 is stably limited under the elastic force of the U-shaped clamping piece 601, when installing the device, the base 1 is attached to the heat source and is fixed on the mounting frame by screws, when using the radiator, the heat generated by the heat source is transmitted to the horizontal fin 2 through the heat pipe 3, the fan 4 is started, the external cold air is extracted and is blown to the inside of the horizontal fin 2, and heat is radiated, since the adjacent spacing between the vertical fin 5 near the fan 4 is the same, the gas can be uniformly diffused, when selecting the fan 4, the fan 4 with the same height as the horizontal fin 2 is selected, so that the heat can be uniformly radiated, in addition, after the gas enters the horizontal fin 2, the flow direction of the gas is parallel to the flat section 303, the resistance to the gas is reduced, and the heat radiation effect is better.

[0050] The above is only further embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled person in the technical field according to the technical scheme and concept of the present application can make equivalent replacement or change within the scope disclosed by the present application, and all of them belong to the protection scope of the present application.

Claims

1. A heat dissipating device for high heat flux density heat transfer, comprising a base (1), horizontal fins (2), heat pipes (3) and a fan (4), characterized in that: Horizontal fins (2) are arranged at equal intervals horizontally on the top of the base (1), the bottom of the base (1) is uniformly provided with heat pipes (3), both ends of the heat pipes (3) are vertically penetrated to the top of the horizontal fins (2), one side of the horizontal fins (2) is provided with a fan (4), the side of the horizontal fins (2) away from the fan (4) is uniformly provided with vertical fins (5) vertically, the vertical fins (5) are inserted between the horizontal fins (2), the vertical fins (5) at both ends of the horizontal fins (2) are inclined towards the direction of the fan (4), and the end of the vertical fin (5) is provided with a positioning assembly (6) between the horizontal fin (2).

2. A heat sink for high heat flux density heat transfer according to claim 1, wherein: Both sides of the top of the base (1) are provided with mounting holes (101), and the middle position of the top of the base (1) is provided with fins.

3. A heat sink for high heat flux density heat transfer according to claim 2, wherein: The side of the vertical fin (5) is uniformly provided with a bayonet (501), the bayonet (501) is the same thickness as the horizontal fin (2), and the bayonet (501) is clamped on the surface of the horizontal fin (2).

4. The heat dissipating device of claim 3, wherein: The positioning assembly (6) comprises a U-shaped clamp (601) and a bushing (602), both ends of the U-shaped clamp (601) are provided with hooks, the horizontal fin (2) is provided with a bushing (602) matched with the hooks, the hooks at the end of the U-shaped clamp (601) are inserted into the inside of the bushing (602), and the middle position of the U-shaped clamp (601) is clamped on the outside of the vertical fin (5).

5. A heat sink for high heat flux density heat transfer according to claim 4, wherein: Both ends of the upper and lower of the outside of the vertical fin (5) are provided with a clamping groove (603), the clamping groove (603) is parallel to the thickness direction of the vertical fin (5), and the middle position of the U-shaped clamp (601) is clamped in the inside of the clamping groove (603).

6. A heat sink for high heat flux density heat transfer according to any one of claims 1-5, wherein: The heat pipe (3) comprises a flat section (301), a cylindrical section (302) and a flat section (303), the flat section (301) is fixed on the bottom of the base (1), the bottom of the flat section (301) is flush with the bottom surface of the base (1), both ends of the flat section (301) are inclinedly provided with the cylindrical section (302), the top end of the cylindrical section (302) is vertically provided with the flat section (303), and the flat section (303) is vertically penetrated through the horizontal fin (2).

7. A heat sink for high heat flux density heat transfer according to claim 6, wherein: The flat section (303) is located outside the vertical fin (5) at both ends of the horizontal fin (2), and the flat section (303) is parallel to the vertical fin (5).

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