CN115046418A - Press tube type water cooling plate structure - Google Patents

Abstract

The invention relates to a pressure pipe type water cooling plate structure, which comprises: a plate body is provided with a channel, a water-cooling pipe is pressed and embedded into the channel, the water-cooling pipe is provided with a water-cooling pipe channel for a working medium to circulate, and the surface of the inner wall of the channel of the water-cooling pipe is annularly provided with a plurality of staggered convex bodies and channels, so that the contact area with the working medium is greatly increased and/or the working medium circulates in the water-cooling pipe channel in a turbulent state, and the heat exchange capacity of the water-cooling plate is further increased.

Description

Pressure tube type water cooling plate structure

technical field

The invention relates to the field of water-cooling plates, in particular to a tube-pressed water-cooling plate structure.

Background technique

Exposed Tube Coldplate (Exposed Tube Coldplate) is a kind of groove with corresponding shape processed by CNC on the base plate (such as copper plate or aluminum plate), and then embedded (inserted) into the bent copper tube, the groove between the copper tube and the base plate. The channels can be filled with high thermal conductivity epoxy resin or soldered with solder paste for reinforcement and auxiliary heat transfer. When the copper tube is embedded (inserted), it is flattened, and then milled so that an exposed surface of the copper tube and a surface of the substrate are on the same plane, so that the heating component is in direct contact with the copper tube, and the heat is directly conducted away. The pipes of seamless copper pipes constitute the water channel for the circulation of the working medium, there is no risk of liquid leakage, and the heating components can be installed on both sides.

1A to FIG. 1C are schematic diagrams of the existing press-tube type water-cooling plate, which includes a water-cooling substrate 11 and a copper tube 12. The water-cooling substrate 11 is machined with a groove 13 by CNC milling technology, and the copper tube 12 is embedded in In the groove 13, an exposed surface of the copper tube 12 is flattened or milled by surface profile processing such as pressing or milling, so that the exposed surface of the copper tube 12 is on the same plane as the water-cooled substrate 11, thereby contact with heat-generating components. The copper pipe 12 has a pipe 121 running through both ends of the copper pipe 12 , and the working medium 14 such as water, cold coal or ethanol flows through the pipe 121 .

However, the direct contact area between the existing copper tube 12 (as shown in FIG. 1A ) and the heating element is small, so that the heat of the heating element cannot be sufficiently taken away. In particular, the copper tube 12 is bent into a spiral serpentine shape (as shown in FIG. 1B ) or an S serpentine shape and is arranged on the water-cooled substrate 11 in an attempt to increase the contact area between the copper tube 12 and the heating element, and through the serpentine tube The length of the body can prolong the flow time of the working medium 14 to improve the heat exchange effect.

However, the inner wall of the pipe 121 of the copper pipe 12 in the above-mentioned prior art is a smooth surface without any features, and the working medium in the pipe 121 of the copper pipe 12 presents fluid stratification, and flows in a laminar flow state parallel to each other without mixing, The flow velocity of the working medium 14 located at the approximate center of the pipe 121 is fast, and the flow velocity of the working medium close to the inner wall of the pipe 121 is relatively slow (as shown in FIG. 1C ). As a result, only the working medium 14 close to the inner wall of the pipe 121 has a heat exchange effect, while the working medium 14 in the center of the pipe 121 quickly flows through the pipe 121 and cannot achieve effective heat exchange, resulting in less overall total heat exchange and poor heat exchange capacity. .

SUMMARY OF THE INVENTION

Therefore, how to solve the above-mentioned problems and deficiencies is the direction that the inventor of this case and the relevant manufacturers engaged in this industry are eager to research and improve.

In order to achieve the above-mentioned purpose, the present invention provides a tube-pressed water-cooling plate structure, which is characterized in that it includes:

a plate body with a groove;

A water-cooling pipe is arranged in the channel and has a first end, a second end and a water-cooling pipe channel, the water-cooling pipe channel is penetrating from the first end to the second end, and the water-cooling pipe channel is A plurality of convex bodies are arranged at intervals on the inner wall of the pipe, and a channel is formed between each two convex bodies.

The tube-pressed water-cooling plate structure, wherein: the plurality of protrusions and the channel are horizontally arranged in the water-cooling tube channel.

The said tube-pressed water-cooling plate structure, wherein: the convex body and the plurality of channels are arranged in the water-cooling tube channel with a twist angle.

The tube-pressed water-cooling plate structure, wherein: the protruding body protrudes from the inner wall of the pipe to a center of the water-cooling pipe channel, and has a fixed end and a free end, the fixed end is combined with the inner wall of the pipe, the The free end projects towards the center of the pipe.

The pipe-pressed water-cooling plate structure, wherein: the protruding body extends from the first end to the second end.

Said pipe-pressed water-cooling plate structure, wherein: the plate body has an upper surface and a lower surface, and the channel is located on the upper surface or the lower surface.

The tube-pressed water-cooling plate structure, wherein: the channel has an open side of the channel, the water-cooled tube has an exposed surface, and the exposed surface of the water-cooled tube is exposed from the open side of the channel and is connected with the upper surface of the plate body. The surface or the lower surface is the same plane.

Said pipe-pressed water-cooling plate structure, wherein: the plate body has an upper surface and a lower surface, and the channel is located between the upper surface and the lower surface.

The advantage of the present invention is to provide a pressure-tube type water-cooling plate structure that increases the contact area between the water-cooling pipe of the water-cooling plate and the working medium to improve the heat exchange of the water-cooling plate.

Another advantage of the present invention is to provide a press-tube type water-cooling plate that allows the working medium in the water-cooling pipe of the water-cooling plate to flow in a turbulent state, so as to increase the surface heat transfer coefficient in the water-cooling pipe, thereby improving the heat exchange of the water-cooling plate. structure.

Another advantage of the present invention is to provide a tube-pressed water cooling system in which the convex body protrudes from the inner wall of the pipe to the center of the water-cooling pipe channel, so that the thickness of the shell wall of the water-cooling pipe will not become thinner, not easily broken and damaged, and maintain the structural strength. plate structure.

Description of drawings

1A-1C are schematic diagrams of the prior art;

FIG. 2A and FIG. 2B are three-dimensional exploded and assembled schematic diagrams of the present invention;

Fig. 3A-Fig. 3C are the schematic diagrams that the channel of the present invention is located in different positions of the plate body;

4A and 4B are a perspective view and a side view of the convex body and the channel in the water-cooling pipe channel of the present invention being straightly arranged;

FIG. 4C is a cross-sectional view of a section of FIG. 4A for illustrating the flow state of the working medium therein;

5A and 5B are a perspective view and a side view of the convex body and the channel in the water-cooled tube channel of the present invention arranged at a twist angle;

5C and 5D are a cross-sectional view of a section of FIG. 5A and a front view of the section for illustrating the flow state of the working medium in the section.

Description of reference numerals: water-cooled base plate 11; copper pipe 12; pipe 121; groove 13; working medium 14; water-cooled plate 20; plate body 21; upper surface 211; lower surface 212; Upper plate part 216a; lower plate part 217a; water cooling pipe 22; first end 221; second end 222; water cooling pipe channel 223; pipe inner wall 2231; exposed surface 224; protrusion 225; fixed end 2251; free end 2252; groove channel 226; twist angle Φ; working medium 30; heating component 40; center X0; heat exchange surface area A; surface heat transfer coefficient h;

Detailed ways

The above object of the present invention and its structural and functional characteristics will be described with reference to the preferred embodiments of the accompanying drawings.

Please refer to FIG. 2A and FIG. 2B , which are schematic diagrams of three-dimensional decomposition and assembly of the present invention. As shown in the figure, a water-cooling plate 20 includes a plate body 21 and a water-cooling tube 22. The plate body 21 is made of a metal material with high thermal conductivity, such as copper, aluminum, stainless steel, titanium, or alloy. The water-cooling tube 22 is made of copper. Or copper alloy or aluminum or aluminum alloy composition. The plate body 21 has an upper surface 211 and a lower surface 212. Either one of the upper surface 211 and the lower surface 212 is provided with a channel 213. In this figure, the channel 213 is located on the upper surface 211 and has a channel 213. The channel open side 2131 is flush with the upper surface 211 . In a specific implementation, a machining machine such as CNC is used to machine the groove 213 on the upper surface 211 along a predetermined shape. The water-cooling tube 22 matches the shape of the channel 213 and is inserted into the channel 213 by means of caulking, and has an exposed surface 224 exposed from the open side 2131 of the channel, and is processed by surface profile ( For example, pressing or milling) to make the exposed surface 224 flush with the upper surface 211 of the plate body 21 to be the same plane.

Furthermore, the shapes of the channel 213 and the water cooling tube 22 are not limited. Although they are shown as U-shaped in this figure, they are not limited thereto, and may also be in a spiral shape, an S shape, or a meandering shape.

Please continue to refer to FIGS. 3A-3C , which are schematic diagrams of the grooves located at different positions on the board of the present invention. Referring to FIG. 2A and FIG. 2B together, although this embodiment shows that the channel 213 and the water cooling tube 22 are located on the upper surface 211 of the plate body 21 , and the exposed surface 224 and the upper surface 211 are on the same plane and are in contact with each other. A heating element 40 (as shown in FIG. 3A ). However, it is not limited to this. In other alternative implementations, the channel 213 and the water cooling tube 22 are located on the lower surface 212 of the plate body 21, the exposed surface 224 and the lower surface 212 are on the same plane, and contact the heating element 40 (eg shown in Figure 3B).

In another alternative implementation, the channel 213 and the water cooling tube 22 are located between the upper surface 211 and the lower surface 212 of the plate body 21 . In this way, the plate body 21 includes an upper plate portion 216a and a lower plate portion 217a that are butted face-to-face. The water cooling tube 22 is sandwiched between the upper plate portion 216a and the lower plate portion 217a, the upper surface 211 is located at the top side of the upper plate portion 216a, the lower surface 212 is located at the bottom side of the lower plate portion 217a, One or two heating elements 40 are in contact with the upper surface 211 and/or the lower surface 212 (as shown in FIG. 3C ).

Referring back to FIGS. 2A and 2B , the aforementioned water-cooling tube 22 has a first end 221 , a second end 222 and a water-cooling tube channel 223 , and the first end 221 and the second end 222 are shown protruding from the water-cooling tube in this embodiment. One side of the board body 21 (for example, can be the same side or different sides), but not limited to this, the side edge of the board body 21 can also be cut. The water-cooling pipe channel 223 passes through from the first end 221 to the second end 222, and has a pipe inner wall 2231 surrounded by a plurality of spaced protrusions 225 extending from the first end 221 to the second end 222, A working medium 30 (such as in FIGS. 4B, 5B and 5D) such as water, cold coal or ethanol enters from either end of the first end 221 and the second end 222, and then flows out from the other end through the water cooling pipe channel 223.

Please continue to refer to the accompanying drawings, FIGS. 4A and 4B are schematic diagrams of straight arrangement of the protrusions and channels in the water-cooling tube channel of the present invention; FIGS. 5A and 5B are the protrusions and channels in the water-cooling tube channel of the present invention with a twist Schematic diagram of the corner setting. As shown in FIGS. 4A and 4B , referring to FIGS. 2A and 2B together, the aforementioned protrusions (such as ribs or fins) 225 are convex from the inner wall 2231 of the pipe to a center X0 of the water cooling pipe channel 223 extending, and a channel 226 is formed between every two protruding bodies 225 . Each protrusion 225 has a fixed end 2251 and a free end 2252 . The fixed end 2251 is combined with the inner wall 2231 of the pipe, and the free end 2252 protrudes from the inner wall 2231 of the pipe toward the center X0 of the water cooling pipe channel 223 . The water cooling tube 22 and the protruding body 225 can be formed integrally or non-integrally. If it is integrally formed, the water-cooling tube 22 can be pulled by a mold. If it is not integrally formed, the water-cooling tube 22 and the convex body 225 are combined together by a joining means (eg, welding, bonding, or clamping). The above-mentioned protrusions 225 and channels 226 are arranged horizontally in the water-cooling tube channel 223 , that is, each protrusion 225 and channel 226 extends in parallel from the first end 221 of the water-cooling tube 22 without being inclined or skewed. to the second end 222 .

Furthermore, as shown in FIGS. 5A and 5B , and referring to FIGS. 2A and 2B together, in another alternative implementation, the first end 221 and the second end 222 of the aforementioned water cooling tube 22 can be oriented in different directions (ie, clockwise). direction and counterclockwise) or one end of the first end 221 and the second end 222 is fixed, and the other end is twisted in one direction, so that the protrusions 225 and the The channel 226 is provided with a twist angle Φ. In this way, each of the protrusions 225 and the channel 226 extends from the first end 221 of the water cooling tube 22 to the second end 222 in a twisted and inclined manner. Then, the twisted water-cooling tube 22 is bent to fit the shape of the channel 213 and inserted into the channel 23 .

Not limited to the above, in the implementation where the first end 221 and the second end 222 of the water cooling tube 22 are not twisted, the protrusions 225 and the channels 226 can be integrally formed along the torsion angle Φ (eg, mold extraction). drawn) or non-integrated (for example, welding or bonding or clipping) is provided in the water cooling pipe channel 223 .

In this embodiment, the convex bodies 225 and the channels 226 are arranged at a twist angle Φ to change the laminar flow state of fluid stratification in the prior art, so that the working medium 30 in the water-cooling tube channel 223 of this embodiment is The mixing is better, and then it becomes a turbulent flow (turbulent flow; or turbulent flow, turbulent flow or turbulent flow) state flow, thereby improving the heat exchange efficiency.

Furthermore, the protrusions 225 of the above-mentioned implementations are arranged to protrude from the inner wall 2231 of the pipe into the water-cooling pipe channel 223, so that the channel 226 is formed between the two protrusions 225 instead of being recessed into the inner wall 2231 of the pipe. With the channel 226 , the thickness of the shell wall of the water-cooling tube 22 will not become thin, and it is not easy to be broken and damaged, and the structural strength of the water-cooling tube 22 can be maintained.

Please continue to refer to FIG. 4C , which is a cross-sectional view of a section of FIG. 4A showing the flow state of the working medium in the section; FIGS. 5C and 5D are a section view of a section of FIG. 5A and the front of the section to indicate the flow of the working medium. Status diagram. As shown in the figure, referring to FIG. 2A and FIG. 2B together, according to Newton's law of cooling, the overall effect of convection is described as Q=h╳A╳Δt.

Where Q is the heat transfer (or heat transfer rate), h is the surface heat transfer coefficient (or convective heat transfer coefficient), A is the heat transfer surface area (or contact area), Δt is the fluid temperature difference (T-T' ).

In terms of the same external specifications of the water-cooling plate 20 (including the size of the plate body and the curved shape of the water-cooling pipe) and the flow rate of the working medium and the working medium, there are two ways to improve the heat exchange capacity of the water-cooling plate 20. One is to increase the water cooling The heat exchange area A in the water cooling tube 22 of the plate 20 is to increase the surface heat exchange coefficient h of the water cooling plate 20 .

As shown in FIG. 4C , referring to FIGS. 2A , 2B and 4A and 4B together, it can be seen from the above Newton’s law of cooling that the increase of the heat exchange surface area A will increase the heat exchange. Therefore, when the working medium 30 flows through the water-cooling tube 22, the contact between the water-cooling tube channel 223 and the working medium 30 is increased by the convex-concave structure of the convex bodies 225 and the channel 226 horizontally disposed in the water-cooling tube channel 223. area. In this way, compared with the prior art, the inner wall of the pipe 121 of the copper pipe 12 is not provided with any characteristic smooth surface, the present invention uses the convex and concave structures of the convex bodies 225 and the channel 226 to increase the distance between the water cooling pipe channel 223 and the working medium. The contact area of 30 further increases the heat exchange surface area A of the water-cooled plate 20, and also increases the heat exchange of the water-cooled plate 20.

In addition, as shown in FIGS. 5C and 5D , referring to FIGS. 2A , 2B and 5A and 5B together, it can be seen from the above Newton’s law of cooling that the surface heat transfer coefficient h increases, and the heat transfer increases. Therefore, when the working medium 30 flows through the water-cooled pipe 22, the working medium 30 close to the inner wall 2231 of the pipe is disturbed by the twisted convex body 225 and the groove 226 during the flow process, which presents a spiral diverging vortex (Vortex) along the twisting direction. ) flow, and then develop into a turbulent flow (turbulent flow; or turbulent flow, turbulent flow or turbulent flow) state flow. Compared with the laminar flow state of the prior art, the working medium 30 in the turbulent flow state can greatly improve the surface heat transfer coefficient h of the inner wall 2231 of the pipe in contact with it, so as to increase the surface heat transfer coefficient h in the water-cooled pipe channel 223 . Not only that, the convex and concave structures of the convex bodies 225 and the channels 226 can also increase the contact area between the water cooling tube channel 223 and the working medium 30 , thereby increasing the heat exchange surface area A of the water cooling plate 20 . Under the condition that both the surface heat transfer coefficient h and the heat transfer surface area A are increased, the heat transfer amount of the water cooling plate 20 is increased by a larger amount.

The above description is only illustrative rather than restrictive for the present invention. Those skilled in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined by the claims. All will fall within the protection scope of the present invention.

Claims (8)

1. A tube-pressed water-cooled plate structure, characterized in that, comprising: a plate body with a groove; A water-cooling pipe is arranged in the channel and has a first end, a second end and a water-cooling pipe channel, the water-cooling pipe channel is penetrating from the first end to the second end, and the water-cooling pipe channel is A plurality of convex bodies are arranged at intervals on the inner wall of the pipe, and a channel is formed between each two convex bodies. 2 . The tube-pressed water-cooling plate structure of claim 1 , wherein the plurality of protrusions and the channel are horizontally disposed in the water-cooling tube channel. 3 . 3 . The tube-pressed water-cooling plate structure as claimed in claim 1 , wherein the convex body and the plurality of channels are arranged in the water-cooling tube channel with a twist angle. 4 . 4. The tube-pressed water-cooling plate structure as claimed in claim 1, wherein the protruding body protrudes from the inner wall of the tube to a center of the water-cooling tube channel, and has a fixed end and a free end, the fixed end The end is combined with the inner wall of the pipe, and the free end protrudes toward the center of the pipe. 5 . The tube-pressed water-cooling plate structure of claim 1 , wherein the protruding body extends from the first end to the second end. 6 . 6 . The tube-pressed water-cooling plate structure of claim 1 , wherein the plate body has an upper surface and a lower surface, and the channel is located on the upper surface or the lower surface. 7 . 7 . The tube-pressed water-cooling plate structure of claim 6 , wherein the channel has an open side of the channel, the water-cooled tube has an exposed surface, and the exposed surface of the water-cooled tube is exposed from the open side of the channel. 8 . and the same plane as the upper surface or the lower surface of the plate body. 8 . The tube-pressed water-cooling plate structure of claim 1 , wherein the plate body has an upper surface and a lower surface, and the channel is located between the upper surface and the lower surface. 9 .

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