TWM588360U - Improved structure of liquid-cooling heat dissipation head - Google Patents

Abstract

An improved structure of a liquid-cooled heat dissipation head includes a substrate and a cover. One side of the substrate forms a heat exchange surface and is provided with a plurality of heat dissipation fins. The heat dissipation fins are recessed with a first groove and a first Two grooves, the cover body has a first side and a second side, the first side corresponds to the heat exchange surface cover and merges together to define a heat exchange chamber for a cooling liquid to flow, and the first side corresponds to the The first and second grooves are respectively provided with a first convex portion and a second convex portion, and the first and second convex portions are engaged with and combined with the first and second grooves, and the first The two convex parts jointly define a guide channel, a water inlet and a water outlet are respectively arranged on the cover body, the water inlet is connected to the guide channel, and the water outlet is connected to the heat exchange chamber, and through the structure of this creation Design can achieve the effect of greatly improving the heat exchange efficiency.

Description

Improved structure of liquid-cooled radiator

This creation is about an improved structure of a liquid-cooled heat sink, especially an improved structure of a liquid-cooled heat sink that can greatly increase heat exchange efficiency.

With the advancement of semiconductor processing technology, the computing speed of semiconductor wafers has also doubled compared to the past, but the increase in computing efficiency also accompanies the doubling of thermal energy. For the thermal energy produced by today's semiconductor wafers, the traditional forced air cooling mechanism is no longer sufficient, so liquid cooling mechanisms such as water-cooled systems are bound to be the driving force in the future.
The water cooling head is a component used to contact a heat source (such as a semiconductor wafer) in a water cooling system. Its general working method is to perform heat exchange with the heat source in a thermally conductive manner to remove the heat generated during the work of the heat source, and then The cooling liquid (such as water) flows into the water-cooling head to conduct heat exchange with the cooling fins or fins or radiating parts of the water-cooling head to transfer heat energy to the cooling liquid, which is taken away from the water-cooling as the cooling liquid flows out. head. Therefore, the design of the flow channel in the water cooling head is closely related to its thermal convection performance. Generally, a plurality of cooling columns or fins are provided in the water cooling head to form a flow channel for the cooling liquid to flow through the cooling columns or fins or radiating parts. For heat exchange, the traditional water-cooled head directly flows the cooling liquid from a water inlet into the flow channel of the cooling fins. Because the cooling liquid flows in the water-cooled head, there are no similar restrictions or restricted structural guidance. The direction of the water flow will cause the cooling liquid to flow in a non-directional manner during the flow, except that there is only a small amount of complete heat exchange between the cooling liquid inflow and the cooling column or fins or fins near the inlet. However, the heat exchange rate is poor or even non-existent for the radiating columns or fins that are far from the middle of the entrance, or even fins, resulting in the traditional water-cooling head's heat exchange efficiency being inconspicuous.

Therefore, in order to effectively solve the above problems, the main purpose of this creation is to provide an improved structure of a liquid-cooled heat sink that can greatly increase the heat exchange efficiency.
The secondary objective of this creation is to provide an improved structure of a liquid-cooled heat sink that makes the flow of cooling liquid smoother.
In order to achieve the above purpose, the present invention provides an improved structure of a liquid-cooled heat dissipation head, which includes a substrate and a cover, a heat exchange surface is formed on one side of the substrate, and a plurality of heat dissipation fins are provided on the heat exchange surface. The heat dissipation fins are recessed with a first groove and a second groove, and a first channel is formed between the two adjacent heat dissipation fins. The cover has a first side and a second side. The first side corresponds to the cover and the heat exchange surface of the substrate and merges to define a heat exchange chamber for a cooling liquid to flow, and the first side is respectively provided with a first protrusion corresponding to the first and second grooves. And a second convex portion, the first and second convex portions collectively define a guide channel, a water inlet and a water outlet are respectively arranged on the cover, and the water inlet communicates with the guide channel and the water outlet The heat exchange chamber is communicated.
Through the creation of the design of this structure, the first and second grooves of the substrate and the first and second convex portions formed on the first side of the cover are engaged with each other, so that the cooling liquid is When the water inlet flows into the cover body, it passes through the guide channel formed by the first and second convex portions on the cover body. In this way, the flow of the cooling liquid can be entered from the center of the heat dissipation fins and then redirected. The discharge from both sides can greatly improve the heat exchange efficiency between the cooling liquid and the radiating fins.

The above-mentioned purpose of this creation and its structural and functional characteristics will be explained according to the preferred embodiments of the drawings.
Please refer to Figs. 1 and 2 for a three-dimensional exploded view and a three-dimensional combination view of the first embodiment of the improved structure of the liquid-cooled heat sink. As shown in the figure, a liquid-cooled heat sink improved structure 2 includes A substrate 20 and a cover 21. The substrate 20 has a heat conduction surface 201 and a heat exchange surface 202. The heat conduction surface 201 is in contact with a heat source (not shown). The heat exchange surface 202 is provided with The plurality of heat dissipation fins 203 are arranged at intervals. Each heat dissipation fin 203 has a first notch 2031 and a second notch 2032, and the first notches 2031 on each heat dissipation fin 203 are arranged at a corresponding interval. A first groove 204 is formed, and the second notches 2032 on each of the heat dissipation fins 203 are arranged at a corresponding interval to form a second groove 205. In addition, first and second adjacent heat dissipation fins 203 are formed with first steps. Road 206;
A water inlet 22 and a water outlet 23 are respectively provided on the cover 21, and the cover 21 has a first side 211 and a second side 212 on both sides, and the cover 21 has a first side 211. Correspondingly affixed on the heat dissipation fin 203 and covered with the heat exchange surface 202 of the substrate 20, so that a heat exchange chamber 2114 is defined between the first side 211 of the cover 21 and the heat exchange surface 202. For a cooling liquid 3 to flow (please refer to FIG. 4 together), the heat exchange chamber 2114 is in communication with the flow channel 206 of the heat dissipation fin 203 and the water outlet 23, and corresponds to the first side 211 The aforementioned first and second grooves 204 and 205 respectively protrude a first convex portion 2111 and a second convex portion 2112, and the first and second convex portions 2111 and 2112 collectively define a guide track 2113, and The guide channel 2113 communicates with the water inlet 22, wherein the first and second convex portions 2111 and 2112 are used to restrict the cooling liquid 3 from flowing in through the water inlet 22 and can only pass through the guide channel 2113 in parallel Into each of the flow channels 206 between the radiating fins 203, so as to achieve a smooth flow direction of the cooling liquid 3;
Wherein, the first and second convex portions 2111 and 2112 on the cover 21 are integrally formed with the cover 21, and in this embodiment, the first and second convex portions 2111 and 2112 are continuous. The first and second convex portions 2111 and 2112 can also be formed into a discontinuous state (not shown in the figure), and of course, they are continuous. The heat dissipation efficiency achieved by the first and second convex portions 2111 and 2112 is better than that of the first and second convex portions 2111 and 2112 in a discontinuous state. In addition, in this embodiment, the first and second convex portions 2111 The cross-sectional shapes of the first and second recesses 204 and 205 are rectangular, and the cross-sectional shapes of the corresponding first and second grooves 204 and 205 are the cross-sectional shapes of the first and second recesses 2111 and 2112. The two are matched with each other. The shape of the structure, but the shape is not limited to a rectangle. In actual implementation, it can be triangular or semi-circular or other geometric shapes, which can also achieve efficacy.
Continue to refer to Figures 3 and 4, which are the top view and partial three-dimensional cross-sectional view of the flow of the cooling liquid 3 in the improved structure 2 of the liquid-cooled heat sink for this creation. Through the structural design of this creation, The cover 21 has a structural design of a guide track 2113 formed by first and second convex portions 2111 and 2112 on a first side 211 of the cover body 21, and the heat dissipation fin 203 is correspondingly pasted through the first side 211. The top surface is a free end so that the first and second convex portions 2111 and 2112 are embedded (inserted) in the first and second grooves 204 and 205. When the cooling liquid 3 passes through the water inlet 22 through the After the cover 21 reaches the guide channel 2113, the cooling liquid 3 will then flow into the flow channels 206 of the radiating fins 203, and the cooling liquid 3 will flow out to the ends of the radiating fins 203 respectively. The heat exchange chamber 2114 is finally flowed out through the water outlet 23 to complete the internal circulation of the cooling liquid 3 in the liquid-cooled heat sink improved structure 2. In other words, by the first and second convex portions 2111, The structural design of the guide track 2113 formed by 2112 is directly formed on the cover 21. The flow of cooling liquid has a function to both sides from the central discharge of heat-dissipating fins 203 to enter, so as to achieve significantly enhance the cooling liquid and the heat exchange efficiency of heat-dissipating fins 3 203.
Please refer to FIG. 5 and FIG. 4 together, which are three-dimensional exploded views of the second embodiment of the improved structure of the liquid-cooled heat-dissipating head. The corresponding relationship is the same as the improved structure of the liquid-cooled heat-dissipating head described above, so it is not repeated here, but the main difference between the improved structure of the liquid-cooled heat-dissipating head and the foregoing is that the first side 211 of the cover 21 A stopper portion 2115 is formed corresponding to one end of the first and second convex portions 2111 and 2112, and the stopper portion 2115 is connected to the first and second convex portions 2111 and 2112 and collectively defines the guide track 2113. With the structural design of the baffle portion 2115, the cooling liquid 3 can be restricted to pass only through the guide channel 2113 and the non-directional turbulent flow of the cooling liquid 3 can be prevented to achieve a rectifying effect and a large increase in heat exchange efficiency. effect.
As mentioned above, this creation has the following advantages compared to conventional knowledge:
1. Significantly increase heat exchange efficiency;
2. Can make the flow of cooling liquid more smooth.
The creation has been described in detail above, but the above is only a preferred embodiment of the creation, and the scope of implementation of the creation cannot be limited. That is to say, all equal changes and modifications made in accordance with the scope of this creative application shall still be covered by the patent of this creative.

2‧‧‧ Improved structure of liquid-cooled heat sink
20‧‧‧ substrate
201‧‧‧ heat conduction surface
202‧‧‧Heat exchange surface
203‧‧‧Cooling Fin
2031‧‧‧The first notch
2032‧‧‧Second notch
204‧‧‧first groove
205‧‧‧Second groove
206‧‧‧ runner
21‧‧‧ Cover
211‧‧‧first side
2111‧‧‧first convex
2112‧‧‧Second Convex
2113‧‧‧Guide Road
2114‧‧‧Heat exchange chamber
2115‧‧‧ stall
212‧‧‧second side
22‧‧‧ water inlet
23‧‧‧ Outlet
3‧‧‧ cooling liquid

FIG. 1 is an exploded perspective view of the first embodiment of the improved structure of the creative liquid-cooled heat sink;
FIG. 2 is a three-dimensional combined view of the first embodiment of the improved structure of the creative liquid-cooled heat sink;
FIG. 3 is a top view of the first embodiment of the improved structure of the creative liquid-cooled heat sink;
FIG. 4 is a partial three-dimensional cross-sectional schematic diagram of the first embodiment of the improved structure of the creative liquid-cooled heat sink;
FIG. 5 is an exploded perspective view of the second embodiment of the improved structure of the creative liquid-cooled heat sink.

Claims (8)

An improved structure of a liquid-cooled heat sink includes:
A substrate has a heat exchange surface formed on one side, and a plurality of heat dissipation fins are disposed on the heat exchange surface. The heat dissipation fins are recessed with a first groove and a second groove, and the two adjacent A first-grade channel is formed between the heat-dissipating fins; and a cover body having a first side and a second side, and the first side is correspondingly combined with the heat-exchange surface cover of the substrate to jointly define a heat-exchange chamber for A cooling liquid flows, and a first convex portion and a second convex portion are respectively protruded from the first side corresponding to the first and second grooves, and the first and second convex portions correspond to the first and second grooves. The two grooves are embedded and combined, and the first and second convex portions jointly define a guide channel. A water inlet and a water outlet are respectively arranged on the cover. The water inlet communicates with the guide channel. A water nozzle communicates with the heat exchange chamber. The improved structure of the liquid-cooled heat sink according to claim 1, wherein the first and second convex portions are integrally formed with the cover system. The improved structure of the liquid-cooled heat sink according to claim 1, wherein the first and second convex portions may be continuous or discontinuous. The improved structure of the liquid-cooled heat sink according to claim 1, wherein the first side of the cover body forms a stopper corresponding to one end of the first and second convex portions, and the stopper is connected to the first The two convex parts are connected and jointly define the guide track. The improved structure of the liquid-cooled heat sink according to claim 1, wherein the substrate further forms a heat conducting surface opposite to the heat exchange surface, and the heat conducting surface is in contact with a heat source. The improved structure of the liquid-cooled heat sink according to claim 1, wherein each of the heat sink fins has a first notch and is arranged at a corresponding interval to form the first groove, and each heat sink fin has a first recess. Two notches are arranged at corresponding intervals to form the second groove. The improved structure of the liquid-cooled heat sink according to claim 1, wherein the first side is correspondingly attached to the top surface of the free end of the heat-dissipating fin to allow the cooling liquid to pass through the guide channel. Into the runner. The improved structure of the liquid-cooled heat sink according to claim 1, wherein the cross-sectional shape of the first and second convex portions is rectangular or triangular or semi-circular or other geometric shapes, The cross-sectional shape is a cross-sectional shape corresponding to the first and second concave portions.