Liquid cooling head and liquid cooling type heat dissipation system

A liquid-cooled head and heat-dissipating unit technology, used in instruments, electrical digital data processing, electrical components, etc., can solve the problems of accelerating heat exchange, accelerating the collision of cooling fins, and turbulent manufacturing effects, so as to improve heat absorption. Efficiency, good heat dissipation effect

Active Publication Date: 2020-04-28
GIGA BYTE TECH CO LTD
5 Cites 0 Cited by

AI-Extracted Technical Summary

Problems solved by technology

Existing cooling fins can be roughly columnar or sheet-shaped, and columnar cooling fins can disturb the flow direction of the cooling liquid to cause turbulent flow, so as to accelerate the collision between the cooling liquid and a plurality of the cooling fins, so as to accelerate heat exchange. Purpose, but there is a problem that the overall heat transfer area is small, which affects ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Method used

11 shows a liquid-cooled heat dissipation system using the liquid-cooled head of the present invention, wherein the inlet 11a of the heat-conducting body 1 is connected to a discharge port 41 of a pump 4 through a connecting pipe 61, and the outlet 11b is passed through another A connecting pipe 62 is connected to an input port 51 of a radiator 5 , and an output port 52 of the radiator 5 is connected to a suction port 42 of the pump 4 through a connecting pipe 63 . As shown by the arrows in Figures 11 and 12, driven by the pump 4, the cooling liquid, such as water or refrigerant, discharged from the outlet 41 of the pump 4 will enter the heat transfer body 1 from the inlet 11a, and flow sequentially. Through the introduction channel 101 and the heat exchange area 103, the heat absorbed by the heat dissipation unit 2 from the heat source is absorbed in the heat exchange area 103, and then enters the export channel 102 from the introduction ports 120 on both sides, and then flows along the export channel 102. 11 b flows out of the heat conducting body 1 , then flows into the radiator 5 for heat dissipation, and then flows back into the suction port 42 of the pump 4 . Wherein, once the coolant enters the heat exchange area 103, it will impact the rotating body 30, and thus drive the rotating body 30 to rotate, and the rotating rotating body 30 will spray the cooling liquid to the periphery, thus disrupting the flow of the cooling liquid to form Turbulent flow, so as to increase the collision between the cooling liquid and the cooling fins 21 of the heat dissipation unit 2, thereby increasing the heat exchange between the two, so that the heat absorption efficiency of the cooling liquid can be improved, and the cooling liquid heat absorption of the existing liquid cooling head can be solved Efficiency needs to be improved.
As shown in Figure 4 and Figure 5, the cooling unit 2 is located at the heat exchange area 103 of the third block 13 of the heat conducting body 1, and has a plurality of cooling fins 21 arranged at intervals, and is composed of a plurality of said A chamber 20 and a plurality of channels 210 are defined by the cooling fins 21 . The chamber 21 communicates with the inlet flow channel 101 of the heat conduction body 1 , and the plurality of channels 210 communicates with the chamber 20 and the outlet flow channel 102 of the heat conduction body 1 . In this embodiment, the plurality of heat dissipation fins 21 are integrated with the third block 13, and the sheet type is selected, that is, the plurality of heat dissipation fins 21 are thin sheets parallel to each other, so as to have a large the overall cooling area. As shown in Figure 3, a bottom surface 130 of the third block 13 is used to contact a heat source (such as a central processing unit, south bridge chip or other heat sources, not shown in the figure), corresponding to the plurality of said bottom surface 130 The cooling fins 21 can quickly absorb the heat generated by the heat source.
In the present embodiment, as shown in Fig. 4, 12, two inlets 120 of the second block body 12 of the heat conduction body 1 each form a slope 121, to guide the flow through the two inlets 120 Cooling liquid, which can reduce the flow resistance of the cooling liquid from the heat exchange area 103 to the outlet channel 102, so as to increase the flow rate of the cooling liquid and further improve the h...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Abstract

The invention mainly discloses a liquid cooling head. The liquid cooling head comprises a heat conduction body, a heat dissipation unit and a rotating device; the heat conduction body is provided witha leading-in flow channel used for leading in cooling liquid, a leading-out flow channel used for leading out the cooling liquid, and a heat exchange area connected with the leading-in flow channel and the leading-out flow channel; the heat dissipation unit is arranged in the heat exchange area of the heat conduction body; a rotary body of the rotating device is rotatably arranged in the heat conduction body and can rotate under the impact of the cooling liquid. Due to the fact that the rotating rotary body can disturb the flowing direction of the cooling liquid to cause turbulent flow, so that collision between the cooling liquid and the cooling fins of the heat dissipation unit can be increased, and therefore, heat exchange between the cooling liquid and the cooling fins is increased, and the heat absorption efficiency of the cooling liquid is improved.

Application Domain

Technology Topic

Image

  • Liquid cooling head and liquid cooling type heat dissipation system
  • Liquid cooling head and liquid cooling type heat dissipation system
  • Liquid cooling head and liquid cooling type heat dissipation system

Examples

  • Experimental program(1)

Example Embodiment

[0072] figure 1 , figure 2 The three-dimensional appearance view and the three-dimensional exploded view of a preferred embodiment of the liquid-cooled head of the present invention include a heat conducting body 1, a heat dissipation unit 2, and a rotating device 3. The heat-conducting body 1 can be made of heat-conducting metal, such as copper or aluminum. It has an introduction channel 101 for introducing cooling liquid (not shown), an outlet channel 102 for exporting cooling liquid, and a connecting introduction flow. A heat exchange area 103 between the channel 101 and the outlet flow channel 102.
[0073] In this embodiment, for ease of assembly, such as figure 2 As shown, the heat-conducting body 1 includes a first block 11, a second block 12, and a third block 13 stacked in sequence. These blocks 11-13 are tightly connected by a plurality of bolt assemblies (not shown in the figure), and use the arrangement of a plurality of sealing rings, such as figure 2 and image 3 The seal rings A to F shown in the figure ensure that the coolant flowing through the inlet flow passage 101, the heat exchange area 103, and the outlet flow passage 102 of the heat-conducting body 1 will not escape from the overlap of these blocks 11-13 vent.
[0074] Such as figure 2 , Figure 4 As shown, the introduction channel 101 penetrates the first block 11 and the second block 12 and has an inlet 11 a located on a top surface 110 of the first block 11. The outlet channel 102 is partially formed in the first block 11 and partially formed in the second block 12, and has an outlet 11b located on the top surface 110 of the first block 11, and two guides formed in the second block 12 口120. The two inlets 120 are respectively located on the left and right sides of the inlet channel 101. The heat exchange area 103 is located in the third block 13 and communicates with the aforementioned two inlets 120. It should be noted that the above-mentioned flow channel design is merely illustrative, and is not intended to limit the present invention.
[0075] Such as Figure 4 and Figure 5 As shown, the heat dissipation unit 2 is provided in the heat exchange area 103 of the third block 13 of the heat conducting body 1, and has a plurality of spaced apart heat dissipation fins 21, and a container defined by the plurality of heat dissipation fins 21 Chamber 20 and multiple channels 210. The chamber 21 communicates with the inlet flow passage 101 of the heat-conducting body 1, and a plurality of the channels 210 communicate the chamber 20 and the outlet flow passage 102 of the heat-conducting body 1. In this embodiment, the plurality of heat dissipation fins 21 and the third block 13 are integrated, and a thin sheet type is selected, that is, the plurality of heat dissipation fins 21 are thin sheets parallel to each other, thereby having a large The overall heat dissipation area. Such as image 3 As shown, a bottom surface 130 of the third block 13 is used to contact a heat source (such as a central processing unit, a south bridge chip or other heat sources, not shown in the figure), and corresponds to the plurality of heat dissipation fins on the bottom surface 130 21 can quickly absorb the heat generated by the heat source.
[0076] Such as Figure 5 As shown, the rotating device 3 is rotatably disposed in the heat conducting body 1 and is located in the chamber 20 of the heat dissipation unit 2. The rotating device 3 includes a rotating body 30 and a rotating shaft 31. The rotating shaft 31 is connected to the rotating body 30 and is disposed on the heat dissipation unit 2. In this embodiment, the liquid cold head further includes a partition 104 disposed on the heat dissipation unit 2 and covering the chamber 20, and the partition 104 further defines a plurality of through holes 105. The two ends of the rotating shaft 31 are respectively supported by the partition 104 and the heat dissipation unit 2 on the third block 13. In this embodiment, as Figure 6 to Figure 9 As shown, the rotating body 30 is disk-shaped and has a shaft hole 32 for the rotating shaft 31 to pass through, so the rotating body 30 can rotate around the rotating shaft 31. The rotating body 30 also has a plurality of fan blades 33 arranged in a ring shape and connected to each other, and the front edge of each fan blade 33 forms a guiding inclined surface 330, and each guiding inclined surface 330 and the rear edge of the preceding fan blade 33 A through hole 331 is formed in between. When a plurality of the fan blades 330 are impacted by a top-down fluid (such as a cooling liquid), part of the fluid will flow into the through holes 331 along the plurality of inclined guide surfaces 330 and then continue to flow downward. In the process, The plurality of inclined guide surfaces 330 can decompose the horizontal component force from the impact force received, so that the rotating body 30 rotates in a predetermined direction under the push of the horizontal component force (in this embodiment, it rotates counterclockwise), and the impact force becomes greater Larger, the faster the rotation speed of the rotating body 30.
[0077] Another example Image 6 and Picture 10 As shown, in this embodiment, the rotating device 3 may further include one or more upper bumps 34, which are located on a top surface of the rotating body 30 and close to the shaft hole 32, and higher than the rotating body 30, so as to avoid The rotating body 30 collides with the partition 104 when rotating. In addition, such as Figure 8 and Picture 10 As shown, the rotating device 3 may further include one or more lower bumps 35. The lower bumps 35 are located on a bottom surface of the rotating body 30 and close to the shaft hole 32, and are lower than the rotating body 30, so as to prevent the rotating body 30 from rotating. Hit the surface of the heat dissipation unit 2. Another example Figure 5 and Picture 10 As shown, the rotating shaft 31 may also have a supporting plate 311. There is a distance between the supporting plate 311 and the surface of the heat dissipating unit 2, and correspondingly support the aforementioned lower bump 35, so that the rotating body 30 and the surface of the heat dissipating unit 2 are kept at a distance. .
[0078] Picture 11 A liquid cooling system using the liquid cooling head of the present invention is shown, in which the inlet 11a of the heat conducting body 1 is connected to an outlet 41 of a pump 4 through a connecting pipe 61, and the outlet 11b is connected to another connecting pipe 62 An input port 51 of a heat sink 5 and an output port 52 of the heat sink 5 are connected to a suction port 42 of the pump 4 through a connecting pipe 63. Such as Picture 11 and Picture 12 As indicated by the arrow in the middle, driven by the pump 4, the coolant, such as water or refrigerant, discharged from the discharge port 41 of the pump 4 will enter the heat conducting body 1 from the inlet 11a, and flow through the introduction channel 101 and the heat In the heat exchange area 103, the heat absorbed by the heat dissipation unit 2 from the heat source is absorbed in the heat exchange area 103, and then enters the outlet channel 102 from the inlets 120 on both sides, and then flows along the outlet channel 102, and flows out of the heat conducting body 1 from the outlet 11b, Then, it flows into the heat sink 5 to dissipate heat, and then flows back into the suction port 42 of the pump 4. Among them, when the cooling liquid enters the heat exchange zone 103, it will impact the rotating body 30, and therefore drive the rotating body 30 to rotate. The rotating rotating body 30 will spray the cooling liquid to the periphery, and thus disrupt the flow direction of the cooling liquid. The turbulent flow increases the collision between the cooling liquid and the cooling fins 21 of the cooling unit 2, thereby increasing the heat exchange between the two, so that the heat absorption efficiency of the cooling liquid can be improved, and the cooling liquid heat absorption of the existing liquid cooling head is solved Efficiency needs to be improved.
[0079] In this embodiment, such as image 3 , Picture 12 As shown, the introduction channel 101 forms an enlarged space 101a corresponding to the chamber 20, so that the cooling liquid can flow into the heat conducting body 1 quickly. Due to the barrier 104, the cooling liquid can only flow into the chamber 20 through the through hole 105. At this time, because the liquid inlet area is reduced, the impact force of the cooling liquid entering the chamber 20 on the rotating body 30 can be increased, and Therefore, the rotation speed of the rotating body 30 is increased, and a more turbulent flow is generated, which further improves the heat absorption efficiency of the coolant.
[0080] In this embodiment, as Figure 4 , 12 As shown, the two lead openings 120 of the second block 12 of the heat conducting body 1 each form a slope 121 to guide the cooling liquid flowing through the two lead openings 120, which can reduce the flow of the cooling liquid from the heat exchange area 103 to The flow resistance of the outlet channel 102 increases the flow rate of the cooling liquid, and further improves the heat absorption efficiency of the cooling liquid.
[0081] Figure 13 Another rotating device 3a is shown, which includes a rotating body 30a and a rotating shaft 31a. The rotating body 30a is substantially the same as the rotating body 30, and the rotating shaft 31a is integrally formed with the rotating body 30a, or the rotating shaft 31a is connected to the rotating body 30a. Fixed, so the rotating body 30a and the rotating shaft 31a will rotate together. The rotating body 30a of the rotating device 3a can also be rotated by the impact of the cooling liquid, so as to cause a turbulent flow that can improve the heat absorption efficiency of the cooling liquid.
[0082] Figure 14 Another rotating device 3b is shown, which includes a rotating body 30b and a rotating shaft 31b. The rotating body 30b is substantially the same as the above-mentioned rotating body 30. In this embodiment, the shaft 31b includes a head 312b and a rod 313b extending downward from the head 312b. The diameter of the head 312b is larger than the rod 313b. The rod 313b passes through the shaft hole 32b of the rotating body 30b. Fixed to the heat dissipation unit 2b. The heat dissipating unit 2b is substantially the same as the heat dissipating unit 2 described above. The main difference is that the heat dissipating unit 2b forms a joint 20b corresponding to the rod 313b to correspond to the joint rod 313b. The coupling manner of the end section of the rod portion 313b and the coupling portion 20b can be screwed, welded, tightly fitted or other coupling manners, so that the two can be combined and fixed. In this embodiment, the rotating shaft 31b is a bolt or screw, so it is combined and fixed to the joint portion 20b of the heat dissipation unit 2b by screwing. In this way, the end section of the entire rotating shaft 31b can be fixed on the heat dissipation unit 2b, so that the rotating body 30b is located between the heat dissipation unit 2b and the head 312b of the rotating shaft 31b, and can be rotated by the impact of the coolant, thereby resulting in a liftable The turbulent flow of cooling liquid heat absorption efficiency. The advantage of this is that the partition 104 can be omitted, which makes the structure of the liquid cold head simpler. In addition, in an embodiment, the rotating shaft 31b may further include a supporting plate 311b, the supporting plate 311b is sleeved and fixed on the rod portion 313b, and has a certain distance from the surface of the heat dissipation unit 2b, and correspondingly supports the rotating body 30b The upper and lower bumps 35b keep the distance between the rotating body 30b and the surface of the heat dissipation unit 2b. The fixing method of the support plate 311b and the rod portion 313b can be screwed, welded, tightly fitted or other fixing methods, so that the two are combined and fixed.
[0083] Compared with the prior art, the liquid-cooling head of the present invention can be configured as described above, especially using the rotating device 3, 3a or 3b to disrupt the flow of the cooling liquid to form a turbulent flow, so as to improve the heat absorption efficiency of the cooling liquid and make the liquid cooling The head and liquid cooling system have better heat dissipation effect.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Similar technology patents

Four-target solar energy heat collection pipe

InactiveCN109099596AIncrease surface areaImprove heat absorption efficiencySolar heating energySolar heat collectors with working fluidsEngineeringCoating
Owner:ANHUI CHUNSHENG NEW ENERGY TECH

Aluminum alloy evaporating type block ice maker

InactiveCN110220345AImprove heat absorption efficiencyIncrease heat absorption and cooling effectLighting and heating apparatusFood processingRefrigerantEvaporator
Owner:FOCUSUN REFRIGERATION JIANGSU

Classification and recommendation of technical efficacy words

  • Improve heat absorption efficiency
  • Good cooling effect

Solar heat collector and seawater desalination system comprising same

InactiveCN105588342AAvoid thermal blind spotsImprove heat absorption efficiencySolar heating energyGeneral water supply conservationSeawaterSolar thermal collector
Owner:山东大学(威海)

Evaporator core

Owner:TONGLING HUIYU IND CO LTD

Stirling heat engine solar heat collector

ActiveCN103629829AUniform temperatureImprove heat absorption efficiencySolar heating energySolar heat devicesAbsorption rateStirling engine
Owner:斯特林威索AB

LED lamp with water-circulating heat dissipation function

ActiveCN105221970AImprove heat absorption efficiencyEven heat absorptionPoint-like light sourceLighting heating/cooling arrangementsHeat sinkEngineering
Owner:JIANGSU TIWIN OPTO ELECTRONICS TECH

Solar thermal collector system and sounding stave thereof

InactiveCN105737408AAvoid thermal blind spotsImprove heat absorption efficiencySolar heating energySolar heat devicesAbsorption capacitySolar thermal collector
Owner:SHANDONG UNIV

Oven

Owner:宁波优尼珂家用电器有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products