Liquid cooling plate with separation strips

Abstract

The utility model provides a liquid cooling plate with separation strips, comprising a bottom plate, the lower surface of which is used for connecting a chip; the plurality of pin fins are arranged in multiple rows and multiple columns and are arranged on the upper surface of the bottom plate; the separation strips are arranged in the middle of the bottom plate and extend in the row or column direction, and the separation strips are connected between every two adjacent pin fins in an abutting mode in the width direction of the separation strips; the cover plate is connected with the bottom plate, the cover plate and the bottom plate are mutually enclosed to form a cavity, the cavity accommodates all the pin fins and the separation strips, preset gaps are formed between the two ends, in the length direction, of the separation strips and the inner wall of the cavity, a liquid inlet hole and a liquid outlet hole are formed in the cover plate, and the liquid inlet hole and the liquid outlet hole correspond to the two sides, in the width direction, of the separation strips respectively. According to the liquid cooling plate with the separation strips, the flowing stroke of cooling liquid can be improved, the heat dissipation uniformity is improved, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of chip heat sinks, and in particular to a liquid cooling plate with partition strips. Background Technology

[0002] The chip generates a lot of heat during operation, requiring a liquid cooling plate to dissipate and cool the chip.

[0003] Existing liquid cooling plates typically have a cavity, inlet hole, and outlet hole. The coolant has a short flow path, low cooling efficiency, and uneven heat dissipation. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, the purpose of this utility model is to provide a liquid cooling plate with a separator, which can improve the flow path of the coolant, increase the uniformity of heat dissipation, and improve the heat dissipation efficiency.

[0005] To address the aforementioned problems, this utility model provides a liquid cooling plate with partition strips, wherein the liquid cooling plate with partition strips comprises:

[0006] A base plate, the lower surface of which is used to connect the chip;

[0007] Multiple needle wings, the multiple needle wings are arranged in multiple rows and columns, and are disposed on the upper surface of the base plate;

[0008] A dividing strip is disposed in the middle of the base plate and extends along the direction of a row or column, and abuts between two adjacent needle wings in its width direction;

[0009] A cover plate is connected to the base plate and they enclose each other to form a cavity. The cavity accommodates all the needle wings and the partition strip. Both ends of the partition strip in the length direction have a predetermined gap with the inner wall of the cavity. The cover plate has an inlet hole and an outlet hole, which correspond to the two sides of the partition strip in the width direction, respectively.

[0010] Furthermore, the needles in adjacent rows and columns are staggered, and the dividing strips are distributed in a serpentine pattern.

[0011] Furthermore, the dividing strip has a first notch and a second notch that are distributed sequentially and alternately. The first notch and the second notch are oriented in opposite directions and each accommodates one of the needle wings. The first notch abuts against the first sidewall of a row or column of the needle wings in the middle. Correspondingly, the second notch abuts against the second sidewall of the same row or column of the needle wings in the middle. The first sidewall and the second sidewall are arranged opposite to each other.

[0012] Furthermore, the needle-wing comprises:

[0013] The first needle wing corresponds to the needle wing directly below the liquid inlet and the liquid outlet;

[0014] The second needle wing is the needle wing remaining after removing the first needle wing, and the height of the second needle wing is higher than that of the first needle wing.

[0015] Furthermore, the top of the separator strip is laser-welded to the tip of the needle wing.

[0016] Furthermore, the base plate is formed as a flat plate.

[0017] The cover plate has a convex cap and a flange capable of accommodating all of the needle wings. The flange connects to the edge of the opening of the convex cap and protrudes outward. The cover plate is connected to the base plate through the flange.

[0018] Furthermore, the base plate is brazed to the flange.

[0019] Furthermore, the liquid cooling plate also includes:

[0020] The buckle plate has a hollow center, the buckle plate is fitted with the convex cover and connected to the flange, and the buckle plate has mounting holes, into which fasteners can be inserted to make the lower surface of the base plate tightly connected to the chip.

[0021] Furthermore, the liquid cooling plate also includes:

[0022] A liquid inlet connector is connected to the liquid inlet hole. The liquid inlet connector includes a first connecting block and a first pagoda connector. The first connecting block communicates with the liquid inlet hole. The first end of the first pagoda connector is connected to the first connecting block, and its second end is used to connect to the liquid inlet pipe.

[0023] The liquid outlet connector is connected to the liquid outlet hole. The liquid outlet connector includes a second connecting block and a second pagoda connector. The second connecting block is in communication with the liquid outlet hole. The first end of the second pagoda connector is connected to the second connecting block, and its second end is used to connect to the liquid outlet pipe.

[0024] Furthermore, the needle-like wings are formed in a columnar shape.

[0025] Due to the above technical solution, this utility model has the following beneficial effects:

[0026] According to this utility model, a liquid cooling plate with a separator strip has pin fins on a base plate. The separator strip is located in the middle of the base plate and extends along a row or column direction, abutting between two adjacent pin fins in its width direction. A cover plate connects to the base plate and they enclose each other to form a chamber, with an inlet and an outlet hole formed on the cover plate. Coolant can enter the chamber through the inlet hole, flow in the area corresponding to the first direction of the separator strip's width direction, pass through a predetermined gap (the gap between the separator strip and the chamber) into the area corresponding to the second direction of the separator strip's width direction, and then flow out of the chamber through the outlet hole. The separator strip can separate the coolant (the coolant cannot directly cross the separator strip from the inlet hole to the outlet hole), increasing the coolant's flow path, improving coolant utilization, heat dissipation efficiency, and heat dissipation uniformity. The gap between the pin fins is narrow, meaning the separator strip is narrow, and the number of pin fins is not reduced. This separator strip can increase the contact area with the coolant, improving heat dissipation efficiency. The separator strip abuts between two adjacent needle fins, facilitating the fabrication of the liquid cooling plate. The base plate and needle fins can be formed as a single piece through cold forging, and then the separator strip can be inserted into the gap between adjacent needle fins. This avoids the more complex and costly CNC machining methods commonly used, thus saving costs and improving production efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0028] Figure 1 This is a structural diagram of a liquid cooling plate with partition strips according to an embodiment of the present invention;

[0029] Figure 2 This is a structural diagram of a cover plate according to an embodiment of the present utility model;

[0030] Figure 3 This is a structural diagram of the base plate and needle fins according to an embodiment of the present invention;

[0031] Figure 4 This is a structural diagram of a liquid cooling plate with partition strips according to another embodiment of the present invention;

[0032] Figure 5 This is a structural diagram of a buckle plate according to an embodiment of the present utility model.

[0033] Figure label:

[0034] 100. Base plate; 200. Cover plate; 210. Convex cover; 220. Flange; 231. Liquid inlet; 232. Liquid outlet; 311. First pagoda connector; 312. First connecting block; 321. Second pagoda connector; 322. Second connecting block; 400. Buckle plate; 410. Mounting hole; 420. Hollowed-out; 520. First needle wing; 510. Second needle wing; 600. Separator strip. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0037] The following describes a liquid cooling plate with partition strips according to an embodiment of the present invention.

[0038] like Figures 1 to 5 As shown, the liquid cooling plate with partition strip in this embodiment of the present invention includes: a base plate 100, a plurality of needle fins, partition strips 600 and a cover plate 200.

[0039] First, the base plate 100 and multiple pins are described. The multiple pins are arranged in multiple rows and columns and are disposed on the upper surface of the base plate 100. The lower surface of the base plate 100 is used to connect the chip.

[0040] like Figure 3 As shown, multiple rows and columns of needles are arranged on the base plate 100. The needles can increase the contact area with the coolant and improve the heat dissipation efficiency.

[0041] Optionally, the needle-like fins are formed in a columnar shape, and the end face can be elliptical, circular, polygonal, etc. For example... Figure 3 The elliptical shape shown allows for a larger contact area with the separator 600.

[0042] Next, the separator 600 will be described. The separator 600 is disposed in the middle of the base plate 100 and extends along the direction of a row or column, and abuts between two adjacent needle wings in its width direction.

[0043] like Figure 3 As shown, the separator 600 extends along the row direction. The separator can separate the coolant (the coolant cannot directly pass through the separator from the inlet to the outlet), which can increase the flow path of the coolant, improve the utilization rate of the coolant, improve the heat dissipation efficiency, and increase the uniformity of heat dissipation.

[0044] The gaps between the pin fins are narrow, meaning the width of the separator 600 is low, and the number of pin fins is not reduced (the separator 600 does not occupy the distribution space of the pin fins). This separator 600 can increase the contact area with the coolant and improve heat dissipation efficiency. The distribution of the pin fins and separator 600 can be as described below, or the separator 600 can be directly inserted between two adjacent rows or columns of pin fins.

[0045] Furthermore, the spacer 600 abuts between two adjacent needle fins, facilitating the fabrication of the liquid cooling plate. The base plate 100 and needle fins can be formed as a single unit through cold forging, and then the spacer 600 can be inserted into the gap between adjacent needle fins. This structure avoids the complexity and high cost associated with commonly used CNC machining methods.

[0046] Finally, the cover plate 200 is described. The cover plate 200 is connected to the base plate 100 and together they form a chamber. The chamber accommodates all the needles and the partition strip 600. Both ends of the partition strip 600 in the length direction have a predetermined gap with the inner wall of the chamber. The cover plate 200 has an inlet hole 231 and an outlet hole 232, which correspond to the two sides of the partition strip 600 in the width direction, respectively.

[0047] The cover plate 200 is connected to the base plate 100 and they enclose each other to form a cavity. A convex cover 210 that can accommodate needle wings can be formed on the cover plate 200, and the base plate 100 covers the opening of the convex cover 210; or a groove that can accommodate needle wings can be formed on the base plate 100, and the cover plate 200 covers the opening of the groove.

[0048] The coolant can enter the chamber through the inlet hole 231, flow in the area corresponding to the first direction of the width direction of the partition bar 600, flow through the predetermined gap (the gap between the partition bar 600 and the chamber) into the area corresponding to the second direction of the width direction of the partition bar 600, and then flow out of the chamber through the outlet hole 232.

[0049] The liquid cooling plate with partition strips described above has pin fins on the base plate 100. Partition strips 600 are located in the middle of the base plate 100 and extend along a row or column direction, abutting against adjacent pin fins in their width direction. A cover plate 200 connects to the base plate 100 and they enclose a chamber, with an inlet hole 231 and an outlet hole 232 formed on the cover plate 200. Coolant can enter the chamber through the inlet hole 231, flow in the area corresponding to the first direction of the width direction of the partition strip 600, pass through a predetermined gap (the gap between the partition strip 600 and the chamber) into the area corresponding to the second direction of the width direction of the partition strip 600, and then flow out of the chamber through the outlet hole 232. The partition strips 600 separate the coolant (the coolant cannot directly cross the partition strip from the inlet hole to the outlet hole), increasing the coolant flow path, improving coolant utilization, heat dissipation efficiency, and heat dissipation uniformity. The narrow gaps between the pin fins, meaning the width of the separator 600 is low, without reducing the number of pin fins, increase the contact area with the coolant and improve heat dissipation efficiency. The separator 600 abuts between two adjacent pin fins, facilitating the fabrication of the liquid cooling plate. The base plate 100 and pin fins can be formed as a single piece through cold forging, and then the separator 600 can be inserted into the gap between adjacent pin fins. This avoids the complexity and high cost of commonly used CNC machining methods, thus saving costs and improving manufacturing efficiency.

[0050] In some embodiments of this utility model, adjacent rows and columns of needle wings are staggered, and the separator strips 600 are distributed in a serpentine pattern.

[0051] The staggered arrangement of the needles can increase the uniformity of coolant heat dissipation.

[0052] like Figure 3 As shown, the separator 600 is formed in a serpentine shape (with two types of symmetrical notches), which increases the contact area with the coolant and improves heat dissipation efficiency. Furthermore, the serpentine separator 600 increases the contact area with the needle fins, preventing relative movement and increasing the stability of the contact with the needle fins.

[0053] It should be noted that the above are just optional examples. The separator 600 can also be formed in a serpentine shape (a notch in only one direction). All of these should be understood within the scope of this utility model.

[0054] Furthermore, the separator 600 has a first notch and a second notch that are distributed sequentially and alternately. The first notch and the second notch are oriented in opposite directions and each accommodates a needle fin. The first notch abuts against the first sidewall of a row or column of needle fins in the middle. Correspondingly, the second notch abuts against the second sidewall of the same row or column of needle fins in the middle. The first sidewall and the second sidewall are arranged opposite to each other.

[0055] like Figure 3 As shown, the dividing strips 600 are distributed in a serpentine pattern, forming a rear recess (first recess), a front recess (second recess), a rear recess (first recess), a front recess (second recess), and so on, in sequence and alternately.

[0056] The rear notch abuts against the front sidewall (first sidewall) of one of the needle wings in the middle row, and the front notch abuts against the rear sidewall (second sidewall) of one of the needle wings in this row.

[0057] The serpentine distribution (with alternating first and second notches) allows for a more uniform distribution of coolant on both sides of the width of the partition bar 600. The alternating and sequential distribution of the first and second notches, each accommodating a needle fin, increases the contact area with the needle fin, further reducing the relative movement between the partition bar 600 and the needle fin, thus ensuring the stability of the position and structure of the partition bar 600.

[0058] It should be noted that the above are just optional examples. The separator 600 can also form a left notch (first notch) and a right notch (second notch). The left notch abuts against the right side wall (first side wall) of the needle wing, and the right notch abuts against the left side wall (second side wall) of the needle wing. All of these should be understood within the scope of this utility model.

[0059] In some embodiments of this utility model, the needle wing includes a first needle wing 520 and a second needle wing 510. The first needle wing 520 corresponds to the needle wing directly below the liquid inlet hole 231 and the liquid outlet hole 232. The second needle wing 510 is the needle wing remaining after removing the first needle wing 520, and the height of the second needle wing 510 is higher than that of the first needle wing 520.

[0060] like Figure 3 As shown, the height of the first needle fin 520 at the positions corresponding to the liquid inlet 231 and liquid outlet 232 is relatively low, while the height of the second needle fin 510 at other positions is relatively high. The lower height of the first needle fin 520 results in less obstruction to the inflow and outflow of coolant, increasing the flow rate of coolant into and out of the chamber, thus increasing heat dissipation efficiency. Furthermore, the first needle fin 520 can still increase the contact area with the coolant, thereby improving heat dissipation efficiency.

[0061] In some embodiments of this utility model, the top of the separator 600 is laser-welded to the top of the needle wing.

[0062] In addition to the contact between the needle fin and the separator 600, laser welding is added to the top of the needle fin and the separator 600, thereby further improving the stability of the connection between the needle fin and the separator 600. Moreover, this operation is simple and efficient.

[0063] In some embodiments of this utility model, the base plate 100 is formed as a flat plate. The cover plate 200 is formed with a convex cover 210 and a flange 220 that can accommodate all the needle wings. The flange 220 is connected to the edge of the opening of the convex cover 210 and protrudes outward. The cover plate 200 is connected to the base plate 100 through the flange 220.

[0064] The base plate 100 is formed as a flat plate and is provided with needle fins, which facilitates the integral formation of the base plate 100 and the needle fins by cold forging, resulting in lower cost and higher production capacity. The convex cover 210 of the cover plate 200 forms a cavity with the base plate 100, thereby accommodating the needle fins and coolant. The cover plate 200 can be formed by stamping, which is low-cost and simple to manufacture.

[0065] Furthermore, the base plate 100 is brazed to the flange 220.

[0066] Brazing connections offer high stability and ensure good chamber sealing, preventing leakage.

[0067] In some embodiments of this utility model, the liquid cooling plate further includes a retaining plate 400. The retaining plate 400 has a hollow 420 in the middle, and the retaining plate 400 is fitted with a protruding cover 210 and connected with a flange 220. The retaining plate 400 has a mounting hole 410, and fasteners can be inserted into the mounting hole 410 so that the lower surface of the base plate 100 is tightly connected to the chip.

[0068] like Figure 4 and Figure 5 As shown, fasteners (such as bolts, rivets, etc.) pass through the mounting holes 410 of the buckle plate 400 to connect with the chip's periphery or the chip itself, so that the flange 220 and the base plate 100 press the chip together, increasing the tightness and stability of the connection with the chip and reducing thermal resistance.

[0069] In some embodiments of this utility model, the liquid cooling plate further includes a liquid inlet connector and a liquid outlet connector. The liquid inlet connector is connected to the liquid inlet hole 231 and includes a first connecting block 312 and a first pagoda connector 311. The first connecting block 312 communicates with the liquid inlet hole 231, and the first end of the first pagoda connector 311 is connected to the first connecting block 312, and its second end is used to connect to the liquid inlet pipe. The liquid outlet connector is connected to the liquid outlet hole 232 and includes a second connecting block 322 and a second pagoda connector 321. The second connecting block 322 communicates with the liquid outlet hole 232, and the first end of the second pagoda connector 321 is connected to the second connecting block 322, and its second end is used to connect to the liquid outlet pipe.

[0070] like Figure 1 As shown, the coolant can enter the chamber through the inlet pipe into the first pagoda connector 311 and the first connecting block 312, and then flow out of the chamber to the second connecting block 322 and the second pagoda connector 321 before entering the outlet pipe.

[0071] The first pagoda connector 311 facilitates a sealed connection with the inlet pipe, and the second pagoda connector 321 facilitates a sealed connection with the outlet pipe to prevent leakage.

[0072] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A liquid cooling plate with partition strips, characterized in that, The liquid cooling plate includes: A base plate, the lower surface of which is used to connect the chip; Multiple needle wings, the multiple needle wings are arranged in multiple rows and columns, and are disposed on the upper surface of the base plate; A dividing strip is disposed in the middle of the base plate and extends along the direction of a row or column, and abuts between two adjacent needle wings in its width direction; A cover plate is connected to the base plate and they enclose each other to form a cavity. The cavity accommodates all the needle wings and the partition strip. Both ends of the partition strip in the length direction have a predetermined gap with the inner wall of the cavity. The cover plate has an inlet hole and an outlet hole, which correspond to the two sides of the partition strip in the width direction, respectively.

2. The liquid cooling plate with partition strips according to claim 1, characterized in that, The needles in adjacent rows and columns are staggered, and the dividing strips are distributed in a serpentine pattern.

3. The liquid cooling plate with partition strips according to claim 2, characterized in that, The dividing strip has a first notch and a second notch that are distributed sequentially and alternately. The first notch and the second notch are oriented in opposite directions and each accommodates one of the needle wings. The first notch abuts against the first sidewall of a row or column of the needle wings in the middle. Correspondingly, the second notch abuts against the second sidewall of the same row or column of the needle wings in the middle. The first sidewall and the second sidewall are arranged opposite to each other.

4. The liquid cooling plate with partition strips according to claim 1, characterized in that, The needle wings include: The first needle wing corresponds to the needle wing directly below the liquid inlet and the liquid outlet; The second needle wing is the needle wing remaining after removing the first needle wing, and the height of the second needle wing is higher than that of the first needle wing.

5. The liquid cooling plate with partition strips according to claim 1, characterized in that, The top of the separator strip is laser welded to the top of the needle wing.

6. The liquid cooling plate with partition strips according to claim 1, characterized in that, The base plate is formed as a flat plate. The cover plate has a convex cap and a flange capable of accommodating all of the needle wings. The flange connects to the edge of the opening of the convex cap and protrudes outward. The cover plate is connected to the base plate through the flange.

7. The liquid cooling plate with partition strips according to claim 6, characterized in that, The base plate is brazed to the flange.

8. The liquid cooling plate with partition strips according to claim 6, characterized in that, The liquid cooling plate also includes: The buckle plate has a hollow center, the buckle plate is fitted with the convex cover and connected to the flange, and the buckle plate has mounting holes, into which fasteners can be inserted to make the lower surface of the base plate tightly connected to the chip.

9. The liquid cooling plate with partition strips according to claim 1, characterized in that, The liquid cooling plate also includes: A liquid inlet connector is connected to the liquid inlet hole. The liquid inlet connector includes a first connecting block and a first pagoda connector. The first connecting block communicates with the liquid inlet hole. The first end of the first pagoda connector is connected to the first connecting block, and its second end is used to connect to the liquid inlet pipe. The liquid outlet connector is connected to the liquid outlet hole. The liquid outlet connector includes a second connecting block and a second pagoda connector. The second connecting block is in communication with the liquid outlet hole. The first end of the second pagoda connector is connected to the second connecting block, and its second end is used to connect to the liquid outlet pipe.

10. The liquid cooling plate with partition strips according to claim 1, characterized in that, The needle-like wings are formed in a columnar shape.

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