CN215003107U

CN215003107U - Heat pipe radiator

Info

Publication number: CN215003107U
Application number: CN202121002662.4U
Authority: CN
Inventors: 林琼榕; 陈海强
Original assignee: Teneng Heat Exchange Technology Zhongshan Co ltd
Current assignee: Teneng Heat Exchange Technology Zhongshan Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-12-03
Anticipated expiration: 2031-05-11

Abstract

The application discloses heat pipe radiator includes: the heat source heat dissipation device comprises a base plate used for configuring a heat source, a first heat pipe cooling fin, a second heat pipe cooling fin and a cooling fin, wherein the first heat pipe cooling fin, the second heat pipe cooling fin and the cooling fin are vertically connected to the base plate; the first heat pipe radiating fins and the second heat pipe radiating fins are both flat sealed pipes, and liquid absorbing cores filled with working liquid are tightly attached to the inner walls of the pipes and used for transferring heat of a heat source on the substrate and directly dissipating partial heat outwards. The radiator of the design scheme has the characteristics of high heat transfer performance, high heat dissipation rate, high power miniaturization, ingenious design, economy and practicality.

Description

Heat pipe radiator

Technical Field

The utility model relates to a technical field in the aspect of the radiator especially relates to a heat pipe radiator.

Background

In the prior art, a plurality of circular heat pipes are arranged on a substrate to transfer heat, and the contact surfaces of the heat pipes and the substrate and the contact surfaces of the heat pipes and the heat pipes have side-by-side gaps when the circular heat pipes are arranged and aligned due to alignment gaps among the circular pipes, so that the heat dissipation performance is reduced.

Moreover, when high-power heat dissipation is performed, the area size of the substrate is enlarged in the conventional heat pipe radiator, so that high-power heat dissipation is realized by increasing more heat pipes, the size and the weight are large, and the design and the installation of the whole cabinet are inconvenient. And because of the influence of heat flow effect, there is a temperature gradient in the radiating fin itself along the heat flow direction. Therefore, if the area size of the base plate or the fins is enlarged, the heat dissipation effect is not obvious, the manufacturing cost is increased, the volume and the weight are large, and the installation and the transportation are inconvenient.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

The utility model aims at providing a heat pipe radiator has heat transfer performance height, and rate of heat dissipation is fast, the characteristics of high-power miniaturization, design benefit and economical and practical.

(II) technical scheme

In order to achieve the above object, the present invention adopts the following technical solution to provide a heat pipe radiator, including:

the heat source heat dissipation device comprises a base plate used for configuring a heat source, a first heat pipe cooling fin, a second heat pipe cooling fin and a cooling fin, wherein the first heat pipe cooling fin, the second heat pipe cooling fin and the cooling fin are vertically connected to the base plate; the first heat pipe radiating fins and the second heat pipe radiating fins are both flat sealed pipes, and liquid absorbing cores filled with working liquid are tightly attached to the inner walls of the pipes and used for transferring heat of a heat source on the substrate and directly dissipating partial heat outwards.

In this design, the heat pipe fin is the sealed platykurtic body that has working fluid in the inside, and heat pipe fin itself also can dispel the heat when with heat transfer to fin, has very high heat conductivility. Secondly, a heat dissipation structure is arranged between the first heat pipe heat dissipation fin and the second heat pipe heat dissipation fin in a mutual annular mode, so that the heat dissipation power of the heat radiator is improved, and the size of the heat radiator can be miniaturized; moreover, the radiating fins are contacted with the first heat pipe radiating fins, so that the heat can be contacted and conducted and dissipated to the outside, and the radiating purpose is further realized. Therefore, the radiator with the heat pipe radiating fin structure can realize higher radiating power under the same unit weight so as to realize the purposes of miniaturization and high radiating power of the radiator, and has the advantages of ingenious structure, reasonable design, economy and practicability.

In some embodiments, at least one of the first heat pipe fins and at least one of the second heat pipe fins are arranged as one group of heat pipe fins, and two adjacent groups of heat pipe fins are arranged at intervals. Therefore, the first heat pipe radiating fin and the second heat pipe radiating fin are modularized, so that the contact area of the heat pipe radiating fins exposed in the air is increased, and the heat radiating rate of the heat pipe radiating fins during heat conduction is improved.

In some embodiments, the first heat pipe fin is a rounded rectangular ring with a notch at the top, and the center line of the notch is aligned with the center line of the first heat pipe fin. Therefore, the first heat pipe radiating fins are of a symmetrical type plate-shaped structure taking the center line of the gap as a symmetrical line, so that the contact area of the heat pipe radiating fins exposed in the air can be increased, and the radiating rate is increased; meanwhile, the two ends of the heat pipe radiating fins are ensured to have the same rate of transferring heat to the radiating fins from the base plate, so that the radiating temperature and the radiating power of the radiating fins at the two ends of the radiator are the same, and the purpose of working at the temperature of the radiator is achieved.

In some embodiments, in order to dissipate heat while rapidly conducting heat from the substrate to the outside, the first heat pipe heat sink is configured as a pipe structure that can be reasonably arranged in two intersecting directions, and thus, the first heat pipe heat sink includes: the heat sink comprises a first heating section, a curved heat dissipation section and a first bending part, wherein the first heating section is transversely arranged, the curved heat dissipation section is vertically connected to two ends of the first heating section, the first bending part is connected with the first heating section and the curved heat dissipation section, and the top of the curved heat dissipation section is in a circular arc shape with a transverse downward opening.

In some embodiments, the second heat pipe fin is formed by at least two arched heat pipe fins symmetrically connected to form a rounded rectangular ring shape with a notch, and a central line of the notch and a central line of the second heat pipe fin are in the same straight line. Therefore, the second heat pipe radiating fins are of symmetrical plate-shaped structures taking the central line of the gap as a symmetrical line, and the arched shape can enhance the contact area of the heat pipe radiating fins exposed in the air and improve the radiating rate; meanwhile, the two ends of the heat pipe radiating fins are ensured to have the same rate of transferring heat to the radiating fins from the base plate, so that the radiating temperature and the radiating power of the radiating fins at the two ends of the radiator are the same, and the purpose of working at the temperature of the radiator is achieved.

In some embodiments, in order to dissipate heat while rapidly conducting heat from the substrate to the outside, the first heat pipe heat sink is configured as a pipe structure capable of reasonable layout in two intersecting directions, and thus the second heat pipe heat sink includes: the heat radiation device comprises a second heated section, arched heat radiation sections and a second bending part, wherein the second heated section is transversely arranged, the arched heat radiation sections are vertically connected to two ends of the second heated section, the second bending part is used for connecting the second heated section and the arched heat radiation sections, and the openings of the arched heat radiation sections face downwards.

In some embodiments, in order to rapidly dissipate heat from the heat pipe fins, the thickness of each of the first heat pipe fin and the second heat pipe fin is set to be 0.1mm to 2 mm. Accordingly, the flat heat pipe fins are provided with the specific thickness in order to realize a heat radiation function while ensuring stable heat transfer, and the heat pipe fins with the largest number can be arranged in a limited unit volume to achieve the effect of high power miniaturization.

In some embodiments, in order for the heat pipe fins to rapidly transfer the received heat to the heat sink fins, while enhancing the contact area of the heat pipe fins exposed to the air, while increasing the heat dissipation rate of the heat pipe fins: the heat dissipation fin is provided with a contact surface and a heat dissipation surface, the heat dissipation surface is vertically connected between the side walls of the first heat pipe cooling fins, and the contact surface is connected to the two ends of the heat dissipation surface and flatly attached to the side walls of the first heat pipe cooling fins.

In some embodiments, in order for the heat pipe fins to rapidly transfer the received heat to the heat sink fins, while enhancing the contact area of the heat pipe fins exposed to the air, while increasing the heat dissipation rate of the heat pipe fins: the radiating fins are provided with radiating grooves, and the radiating fins are parallelly stacked, so that each radiating groove is communicated with two adjacent radiating fins to form a radiating air duct with an air inlet and an air outlet.

In some embodiments, in order for the heat pipe fins to rapidly transfer the received heat to the heat sink fins, while enhancing the contact area of the heat pipe fins exposed to the air, while increasing the heat dissipation rate of the heat pipe fins: the radiating fins are arranged in a U shape or a Chinese character 'shan'.

In some embodiments, in order to quickly conduct heat from the heat source to the outside: and abutting a heat dissipation plate against the top surfaces of the bottoms of the first heat pipe heat dissipation plate and the second heat pipe heat dissipation plate, wherein the heat dissipation plate is provided with a plurality of rectangular heat dissipation fins arranged at intervals.

In some embodiments, in order to quickly conduct heat from the heat source to the outside: the heat pipe heat sink comprises a base plate and is characterized in that a plurality of U-shaped heat transfer grooves are formed in the top of the base plate, at least two abutting grooves communicated with each other are formed in the bottom surface of each heat transfer groove, the two abutting grooves are in seamless butt joint with the bottom surfaces of a first heat pipe heat sink and a second heat pipe heat sink respectively, and the inner side surfaces of the heat transfer grooves are in seamless butt joint with the side surfaces of the heat pipe heat sinks.

In some embodiments, in order to quickly conduct heat from the heat source to the outside: the bottom of the base plate is provided with an installation groove, a plurality of heat transfer pipes which are longitudinally arranged are arranged in the installation groove, and each heat transfer pipe spans the heat transfer grooves.

Drawings

Fig. 1 is a schematic structural diagram of a heat pipe radiator according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a heat pipe radiator according to an embodiment of the present invention;

fig. 3 is an assembly view of a heat pipe fin and a heat dissipating fin according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a plurality of first heat pipe cooling fins according to an embodiment of the present invention;

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a side view of FIG. 4;

fig. 7 is a schematic structural diagram of a plurality of second heat pipe fins according to an embodiment of the present invention;

FIG. 8 is a front view of FIG. 7;

FIG. 9 is an enlarged view of a portion of FIG. 8 at A;

FIG. 10 is a side view of FIG. 7;

fig. 11 is a schematic structural view of a plurality of heat dissipation fins according to an embodiment of the present invention;

fig. 12 is a schematic view showing an installation structure of a heat transfer pipe according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a substrate according to an embodiment of the present invention.

Reference numerals:

1. a substrate; 11. a heat transfer tank; 12. a butt joint groove; 13. mounting grooves; 14. a heat transfer tube; 2. a first heat pipe fin; 21. a first heated section; 22. a curved heat dissipation section; 23. a first bending part; 24. a first fixing member; 3. a second heat pipe fin; 31. a second heated section; 32. an arched heat dissipation section; 33. a second bending part; 34. a second fixing member; 4. a heat dissipating fin; 41. a contact surface; 42. a heat dissipating surface; 43. a heat sink; 44. a heat dissipation air duct; 5. a heat sink.

Detailed Description

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification.

Referring to fig. 1-13, a heat pipe radiator of the present embodiment includes: the heat pipe comprises a base plate 1, a first heat pipe cooling fin 2, a second heat pipe cooling fin 3 and a cooling fin 4. The heat source can be arranged on one surface of the base plate 1, the other surface of the base plate 1 is vertically connected with a first heat pipe radiating fin 2, a second heat pipe radiating fin 3 and radiating fins 4, the first heat pipe radiating fin 2 is arranged around the second heat pipe radiating fin 3 at intervals, the bottoms of the first heat pipe radiating fin and the second heat pipe radiating fin are tightly attached to the base plate 1, and the radiating fins 4 are tightly attached between the side walls of two adjacent first heat pipe radiating fins 2; the first heat pipe radiating fins 2 and the second heat pipe radiating fins 3 are both flat sealed pipes, and liquid absorbing cores filled with working liquid are tightly attached to the inner walls of the pipes and used for transferring heat of a heat source on the substrate 1 and directly dissipating partial heat outwards. The heat pipe radiating fins are flat pipes with working liquid sealed inside, when heat of the substrate 1 is absorbed, the working liquid filled in the liquid absorbing cores in the heat pipe radiating fins is subjected to vapor-liquid phase change to realize heat transfer, and when the heat is transferred to the radiating fins, the heat pipe radiating fins can also radiate the heat, have low thermal resistance and high heat conductivity, and can transfer the heat on the substrate 1 to the direction far away from the substrate 1 at high speed. The heat dissipation fins 4 are solid devices made of metals such as copper, aluminum, silver and the like.

Therefore, a plurality of heat pipe radiating fins are vertically connected to the substrate 1 and used for quickly transferring heat on the substrate 1 to a direction away from the substrate 1 for radiating heat. Secondly, a heat dissipation structure is arranged between the first heat pipe cooling fin 2 and the second heat pipe cooling fin 3 in a mutually surrounding mode, the first heat pipe cooling fin and the second heat pipe cooling fin are arranged at intervals, the layout is ingenious and compact, meanwhile, the ventilation quantity between the first heat pipe cooling fin and the second heat pipe cooling fin can be enhanced, the heat dissipation power of the radiator is improved, and meanwhile, the size can be miniaturized; furthermore, the heat dissipation fins 4 contacting the first heat pipe fins 2 can contact the conducted heat and dissipate the heat to the outside, thereby further achieving the purpose of heat dissipation. Therefore, the radiator with the heat pipe radiating fin structure can realize higher radiating power under the same unit weight so as to realize the purposes of miniaturization and high radiating power of the radiator, and has the advantages of ingenious structure, reasonable design, economy and practicability.

As shown in fig. 3, in the present embodiment, a first heat pipe cooling fin 2 and a second heat pipe cooling fin 3 are tightly attached to form a set of heat pipe cooling fins, and the two adjacent sets of heat pipe cooling fins are arranged at intervals. Namely, two adjacent first heat pipe cooling fins 2 are arranged at intervals, and a second heat pipe cooling fin 3 is arranged at the interval; and, two adjacent second heat pipe cooling fins 3 are arranged at intervals, and one second heat pipe cooling fin 3 exists at the interval. Therefore, the first heat pipe radiating fin 2 and the second heat pipe radiating fin 3 are modularized, so that the installation is convenient, meanwhile, the contact area 41 of the heat pipe radiating fins exposed in the air can be increased, and the heat radiating rate of the heat pipe radiating fins in heat conduction is improved.

It is understood that in other embodiments, two first heat pipe fins 2 and one second heat pipe fin 3 may be crossed or sequentially arranged to form one group of heat pipe fins closely attached together, and two adjacent groups of heat pipe fins are arranged at intervals. Or, one first heat pipe radiating fin 2 and two second heat pipe radiating fins 3 are crossed or arranged in sequence to form a group of heat pipe radiating fins which are tightly attached together, and similarly, two adjacent groups of heat pipe radiating fins are arranged at intervals. Thus, the specific number of the first heat pipe fin 2 and the second heat pipe fin 3 can be set according to the actual power required by the heat sink.

As shown in fig. 4-6, in the present embodiment, the top of the first heat pipe cooling fin 2 has a notch, and two arc tops symmetrically disposed at two ends of the notch, and a central line of the notch and a central line of the first heat pipe cooling fin 2 are located on the same straight line. Therefore, the first heat pipe cooling fin 2 is of a symmetrical plate-shaped structure taking the central line of the gap as a symmetrical line, so that the contact area 41 of the heat pipe cooling fin exposed in the air can be increased, and the heat dissipation rate is improved; meanwhile, the two ends of the heat pipe radiating fins are ensured to have the same rate of transferring heat to the radiating fins 4 from the base plate 1, so that the radiating temperature and the radiating power of the radiating fins at the two ends of the radiator are the same, and the purpose of working at the temperature of the radiator is achieved. Furthermore, first heat pipe fin 2 is the cyclic annular that the arc top has the breach, this annular bottom is that the fillet rectangle is cyclic annular, therefore, this fillet rectangle utilizes the straight flange structure of rectangle to make the bottom of first heat pipe fin 2 flatly paste on base plate 1, make the both sides perpendicular to base plate 1 setting of first heat pipe fin 2 simultaneously, reduce the degree of difficulty to the processing design, and the fillet can realize smooth transition with both of the bottom of first heat pipe fin 2 and first heat pipe fin 2, connect and avoid first heat pipe fin 2 to combine the drawback that the steadiness is not high in the corner.

As shown in fig. 5 and 6, in the present embodiment, specifically, the first heat pipe fin 2 includes: the heat source comprises a first heated section 21 arranged transversely, a curved heat dissipation section 22 vertically connected to two ends of the first heated section 21, and a first bending part 23 connecting the first heated section 21 and the curved heat dissipation section 22, wherein the first bending part 23 is in an arc bending shape, and the top of the curved heat dissipation section 22 is in an arc shape with a transverse downward opening. The first heated section 21 is arranged such that the bottom of the heat pipe fin contacts the substrate 1, the bottom of the curved heat dissipating section 22 extends downward and is connected to the end of the first heated section 21 through the first bending part 23, and the tops of the two curved heat dissipating sections 22 are close to each other but not closely attached to each other to form a gap. Meanwhile, the tops of the two curved heat dissipation sections 22 are arc-shaped, and the joint of the arc-shaped tops can be connected through the first fixing piece 24, so that the stability of the top of the first heat pipe cooling fin 2 is improved. Furthermore, the contact position of curved heat dissipation section 22 and heat dissipation fin 4 is in seamless butt joint, and the plate surface of curved heat dissipation section 22 can be abutted against heat dissipation fin 4, and the plate surface of curved heat dissipation section 22 is the two side surfaces of curved heat dissipation section 22 with the largest length on the pipe diameter cross section, and can be the front surface and the back surface of curved heat dissipation section 22, that is, the front surface and the back surface of first heat pipe cooling fin 2, so that the contact area 41 area of the heat pipe cooling fin exposed in the air can be enhanced, and the heat dissipation rate is improved. The first heated section 21 and the curved heat dissipation section 22 are vertical and connected through the first bending portion 23, so that the disadvantage that the heat pipe fins are not high in combination stability at the corners is avoided. From this, the heat pipe fin can realize unique and rationally distributed's body structure on two cross directions, and above-mentioned this kind of body structure breaks through the design processing technology of current radiating fin 4 or round tube heat pipe, can solve the heat pipe or radiating fin 4 cloth volume that traditional radiator exists under the rated power and little, the space occupies greatly, the problem that radiating power is low, can make the heat source heat on the base plate 1 transmit fast and dispel the heat to keeping away from the direction of base plate 1 on, reach the purpose of dissipating base plate 1 heat to outside fast.

It is understood that in other embodiments, the gap on the first heat pipe cooling fin 2 is formed by the tops of the two curved heat dissipation sections 22 being close to each other but not close to each other, and the aperture size of the gap can be counted by data according to the specific heat dissipation power required by the heat sink.

As shown in fig. 7-10, in the present embodiment, the second heat pipe fin 3 is formed by two arched heat pipe fins symmetrically connected to form a ring shape having a notch, and the center line of the notch is aligned with the center line of the second heat pipe fin 3. Therefore, the second heat pipe radiating fins 3 are of a symmetrical plate-shaped structure taking the central line of the gap as a symmetrical line, so that the contact area 41 of the heat pipe radiating fins exposed in the air can be increased, and the heat radiating rate is increased; meanwhile, the two ends of the heat pipe radiating fins are ensured to have the same rate of transferring heat to the radiating fins 4 from the base plate 1, so that the radiating temperature and the radiating power of the radiating fins at the two ends of the radiator are the same, and the purpose of working at the temperature of the radiator is achieved. Furthermore, the second heat pipe fin 3 is annular with a notch, the bottom of the annular is annular with a rounded rectangle, the rounded rectangle utilizes the straight edge structure of the rectangle to enable the bottom of the second heat pipe fin 3 to be flatly pasted on the substrate 1, meanwhile, the two sides of the second heat pipe fin 3 are perpendicular to the substrate 1, the difficulty of processing and shaping is reduced, the rounded angle can enable the bottom of the second heat pipe fin 3 and the bottom of the second heat pipe fin 3 to be stably transited, and the defect that the second heat pipe fin 3 is not high in combination stability at the corner is avoided through connection.

As shown in fig. 8, 9, and 10, in the present embodiment, the second heat pipe fin 3 includes: the heat radiation device comprises a second heated section 31 transversely arranged, arch-shaped heat radiation sections 32 vertically connected to two ends of the second heated section 31, and a second bent part 33 connecting the second heated section 31 and the arch-shaped heat radiation sections 32, wherein the arch-shaped heat radiation sections are downward opened. Specifically, the method comprises the following steps: the second heated section 31 is arranged such that the bottom of the heat pipe fin is in contact with the substrate 1, the inner side edges of the two arched radiating sections 32 are close to each other but not tightly attached to each other to form a gap, the outer side edge of each arched radiating section 32 is arranged as the side edge of the heat pipe fin, the bottom of the outer side edge of each arched radiating section 32 is vertically connected to the tail end of the second heated section 31 through a second bent part 33, the arched openings of the arched radiating sections 32 face towards each other, the two arched radiating sections 32 are symmetrically arranged, and the outer side edge of each arched radiating section 32 extends downwards to be connected with the second bent part 33, so that the second heat pipe fin 3 is formed into a ring shape with a gap formed by symmetrically connecting the two arched heat pipe fins, and the central line of the gap and the central line of the second heat pipe fin 3 are in the same straight line. Therefore, the second heat pipe cooling fin 3 is a symmetrical plate-shaped structure taking the center line of the notch as a symmetrical line, so that the contact area 41 of the heat pipe cooling fin exposed to the air can be increased, and the heat dissipation rate can be improved. Meanwhile, the top butt joints of the two arched heat dissipation sections 32 can be connected through the second fixing member 34, so that the top stability of the second heat pipe heat dissipation fin 3 is improved.

Furthermore, the contact position of the arched heat dissipation section 32 and the heat dissipation fins 4 is in seamless butt joint, the plate surface of the arched heat dissipation section 32 can be abutted to the heat dissipation fins 4, the plate surface of the arched heat dissipation section 32 is two side surfaces of the arched heat dissipation section 32 with the largest length on the pipe diameter section, the front surface and the back surface of the arched heat dissipation section 32 can be the front surface and the back surface of the second heat pipe cooling fin 3, the contact area 41 area of the heat pipe cooling fin exposed in the air can be enhanced, and the heat dissipation rate is improved. And the second heated section 31 is vertical to the arched heat dissipation section 32, and the second bent part 33 is used for realizing connection between the two sections, so that the defect that the heat pipe cooling fin is not high in combination stability at the corner is avoided. From this, the heat pipe fin can realize unique and rationally distributed's body structure on two cross directions, and above-mentioned this kind of body structure breaks through the design processing technology of current radiating fin 4 or round tube heat pipe, can solve the heat pipe or radiating fin 4 cloth volume that traditional radiator exists under the rated power and little, the space occupies greatly, the problem that radiating power is low, can make the heat source heat on the base plate 1 transmit fast and dispel the heat to keeping away from the direction of base plate 1 on, reach the purpose of dissipating base plate 1 heat to outside fast.

It is understood that, in other embodiments, the notch on the second heat pipe fin 3 is formed by the inner edges of the two arched heat dissipation sections 32 being close to each other but not close to each other, and the aperture size of the notch can be subjected to data statistics according to the specific heat dissipation power required by the heat sink.

As shown in fig. 4 and 7, in the present embodiment, the pipe diameter cross sections of the first heat pipe fin 2 and the second heat pipe fin 3 are set to be rounded rectangles with arc-shaped side surfaces. The side cambered surface can increase the side surface area of the heat pipe radiating fin relative to the straight surface, so that a sufficient contact area 41 is formed between the heat pipe radiating fin and the outside, and the ventilation heat dissipation and heat transfer efficiency is improved.

As shown in fig. 1 and 2, in the present embodiment, a heat dissipation plate 5 is disposed on the heated sections at the bottoms of the first heat pipe cooling fin 2 and the second heat pipe cooling fin 3, and the heat dissipation plate 5 has a plurality of rectangular heat dissipation fins disposed at intervals, and the rectangular heat dissipation fins directly abut against the first heated section 21 and the second heated section 31, and are configured to receive heat and dissipate the heat to the outside through contact with air by themselves, so as to accelerate the heat dissipation rate of the entire heat sink.

In the present embodiment, the thickness of each of the first heat pipe fin 2 and the second heat pipe fin 3 is set to 0.1mm to 2 mm. Therefore, the heat pipe radiating fins can be shaped into a flat pipe body with the thickness of 1.6mm through a specific processing technology, the inside of the pipe body is only filled with a proper amount of working liquid in a negative pressure pumping state, and the liquid absorption core is attached to the inner wall of the pipe body and is filled with the working liquid. The heat pipe radiating fins are 14 hollow heat transfer pipes made of copper, aluminum, silver and other metals, meanwhile, enough space is reserved in the pipe body for heat transfer operation of working liquid, on the basis, the heat pipe is shaped into a flat pipe body with the thickness of 1.6mm, the heat pipe belongs to a breakthrough shaping structure, the pipe body structure can break through the existing shaping processing technology of the heat dissipation fins 4 or the round pipe-shaped heat pipe, the problems that the heat conduction pipes or the heat dissipation fins 4 are small in distribution amount, large in space occupation and low in heat dissipation power of a traditional radiator under rated power can be solved, and the purpose of rapid heat transfer is achieved.

As shown in fig. 3, 6 and 11, in the present embodiment, the heat dissipating fin 4 is provided with a contact surface 41 and a heat dissipating surface 42, the heat dissipating surface 42 is two side edges of the heat dissipating fin 4, the contact surface 41 is a bottom surface of the heat dissipating fin 4, the contact surfaces 41 are connected to two ends of the heat dissipating surface 42 and are flush with the side walls of the first heat pipe fins 2, and the heat dissipating surface 42 vertically abuts between the side walls of the two first heat pipe fins 2. Furthermore, as shown in fig. 11, the heat dissipation fins 4 are provided with heat dissipation grooves 43, the heat dissipation grooves 43 are located between the contact surfaces 41 on both sides and are arranged on one side of the heat dissipation surface 42, when the heat dissipation fins 4 are installed, the plurality of heat dissipation fins 4 are stacked in parallel, and the openings of the heat dissipation grooves 43 face downwards, so that each heat dissipation groove 43 is communicated with a heat dissipation air duct 44 with an air inlet and an air outlet formed between two adjacent heat dissipation fins 4, the heat dissipation air duct 44 can provide a flow passage for the circulation of the inside and the outside air of the heat sink, and the ventilation heat dissipation and the heat transfer efficiency of the whole heat sink are improved while ensuring that a sufficient contact surface 41 area exists between the heat pipe fins and the outside.

In other embodiments, the heat dissipation grooves 43 of the heat dissipation fins 4 may be disposed between two adjacent first heat pipe fins 2 with the openings facing upward. The heat dissipation fins 4 may also be disposed on two adjacent second heat pipe fins 3 to improve the heat dissipation efficiency of the first heat pipe fins 2. Specifically, as shown in fig. 11, in the present embodiment, the heat dissipating fin 4 has a U shape. It is understood that, in other embodiments, the heat dissipation fins 4 may be arranged in a chevron shape, that is, different numbers of contact surfaces 41 may be arranged on the heat dissipation surface 42 according to the required heat dissipation power of the heat sink, and the contact surfaces 41 may be arranged in parallel and the two outermost contact surfaces 41 may still abut against the first heat pipe fin 2 or the second heat pipe fin 3.

As shown in fig. 12 and 13, in this embodiment, the top of the substrate 1 is provided with a plurality of U-shaped heat transfer grooves 11, the plurality of heat transfer grooves 11 are arranged in parallel, the bottom surface of each heat transfer groove 11 is provided with two abutting grooves 12 communicated with each other, one heat pipe cooling fin is arranged in each abutting groove 12, the side wall between the two abutting grooves 12 is slightly higher than the bottom surface of the abutting groove 12 and is far lower than the side wall of the heat transfer groove 11, so that the first and second heat pipe cooling fins 3 in each abutting groove 12 are arranged in a close contact manner, and the heat transfer efficiency can be accelerated while the installation firmness is improved. When the heat pipe radiating fins are installed on the base plate 1, the abutting grooves 12 are in seamless abutting joint with the bottom surfaces of the heated sections of the heat pipe radiating fins, and the inner side surfaces of the heat transfer grooves 11 are in seamless abutting joint with the outer side surfaces of the heated sections of the heat pipe radiating fins, so that the installation firmness of the heat pipe radiating fins can be improved, and meanwhile, the heat pipe radiating fins are in full contact with each other to accelerate the heat transfer efficiency.

It is understood that in other embodiments, three or five or seven abutting grooves 12 communicated with each other are provided on the bottom surface of each heat transfer groove 11, and the specific number of abutting grooves 12 can be determined by statistical calculation according to the heat dissipation power required to be achieved by the heat sink.

Further, as shown in fig. 12, in the present embodiment, a mounting groove 13 is provided at the bottom of the substrate 1, the area of the mounting groove 13 is at least larger than half of the area of the substrate 1, a plurality of heat transfer pipes 14 are longitudinally arranged in the mounting groove 13, the plurality of heat transfer pipes 14 are tiled to be embedded in the substrate 1 through the mounting groove 13, a heat source can be directly abutted against the heat transfer pipes 14, the heat of the heat source is more quickly transferred to the substrate 1 and the heat pipe fins through the heat transfer pipes 14, and high thermal conductivity is further achieved. The heat transfer pipes 14 of the present embodiment may be provided in a rectangular straight pipe shape, each heat transfer pipe 14 spans over a plurality of heat transfer grooves 11, wherein the bottom surface of the mounting groove 13 is close to the bottom surface of the abutting groove 12, which may reduce the abutting distance between the heat transfer pipe 14 and the heat pipe heat sink, so that the heat source heat on the substrate 1 is more quickly transferred to the heat pipe heat sink, further achieving high thermal conductivity.

To sum up, the conduction type radiator that this design provided has the heat transfer performance height, and rate of heat dissipation is fast, the miniaturized characteristics of high-power, design benefit and economical and practical.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A heat pipe heat sink, comprising:

the heat source heat dissipation device comprises a base plate used for configuring a heat source, a first heat pipe cooling fin, a second heat pipe cooling fin and a cooling fin, wherein the first heat pipe cooling fin, the second heat pipe cooling fin and the cooling fin are vertically connected to the base plate;

the first heat pipe radiating fins and the second heat pipe radiating fins are both flat sealed pipes, and liquid absorbing cores filled with working liquid are tightly attached to the inner walls of the pipes and used for transferring heat of a heat source on the substrate and directly dissipating partial heat outwards.

2. A heat pipe radiator as claimed in claim 1, wherein:

at least one first heat pipe radiating fin and at least one second heat pipe radiating fin are arranged into a group of heat pipe radiating fins, and two adjacent groups of heat pipe radiating fins are arranged at intervals.

3. A heat pipe radiator as claimed in claim 1, wherein:

the first heat pipe radiating fin is in a round corner rectangular ring shape, the arc top of the first heat pipe radiating fin is provided with a notch, and the center line of the notch and the center line of the first heat pipe radiating fin are positioned on the same straight line.

4. A heat pipe radiator as claimed in claim 1, wherein:

the first heat pipe fin includes: the heat sink comprises a first heating section, a curved heat dissipation section and a first bending part, wherein the first heating section is transversely arranged, the curved heat dissipation section is vertically connected to two ends of the first heating section, the first bending part is connected with the first heating section and the curved heat dissipation section, and the top of the curved heat dissipation section is in a circular arc shape with a transverse downward opening.

5. A heat pipe radiator as claimed in claim 1, wherein:

the second heat pipe radiating fins are formed in a round-corner rectangular ring shape with notches by symmetrically connecting at least two arched heat pipe radiating fins, and the center lines of the notches and the center lines of the second heat pipe radiating fins are in the same straight line.

6. A heat pipe radiator as claimed in claim 1, wherein:

the second heat pipe fin includes: the heat radiation device comprises a second heated section, arched heat radiation sections and a second bending part, wherein the second heated section is transversely arranged, the arched heat radiation sections are vertically connected to two ends of the second heated section, the second bending part is used for connecting the second heated section and the arched heat radiation sections, and the openings of the arched heat radiation sections face downwards.

7. A heat pipe radiator as claimed in claim 1, wherein:

the radiating fins are provided with contact surfaces and radiating surfaces, the radiating surfaces are vertically connected between the side walls of the first heat pipe radiating fins, and the contact surfaces are connected to the two ends of the radiating surfaces and flatly attached to the side walls of the first heat pipe radiating fins.

8. A heat pipe radiator as claimed in claim 1, wherein:

the radiating fins are provided with radiating grooves, and the radiating fins are parallelly stacked, so that each radiating groove is communicated with two adjacent radiating fins to form a radiating air duct with an air inlet and an air outlet.

9. A heat pipe radiator as claimed in claim 1, comprising:

the heat dissipation plate is abutted against the top surfaces of the bottoms of the first heat pipe cooling fin and the second heat pipe cooling fin, and the heat dissipation plate is provided with a plurality of rectangular heat dissipation fins arranged at intervals.

10. A heat pipe radiator as claimed in claim 1, wherein:

the heat pipe heat sink comprises a base plate and is characterized in that a plurality of U-shaped heat transfer grooves are formed in the top of the base plate, at least two abutting grooves communicated with each other are formed in the bottom surface of each heat transfer groove, the two abutting grooves are in seamless butt joint with the bottom surfaces of a first heat pipe heat sink and a second heat pipe heat sink respectively, and the inner side surfaces of the heat transfer grooves are in seamless butt joint with the side surfaces of the heat pipe heat sinks.