Water cooling head assembly and cooling device

Abstract

The utility model belongs to the technical field of computer components, and discloses a water cooling head component and a cooling device. The water-cooling head assembly comprises a toothed plate, a tooth top cover and a metal connecting piece, one end of the toothed plate is used for heat exchange connection with a heat source, and the other end is provided with a plurality of convex teeth; the tooth top cover is arranged at the top of the convex tooth, and a welding gap with a preset thickness is formed between the tooth top cover and the convex tooth; the surface of the metal connecting piece is coated with welding flux, the metal connecting piece is clamped between the multiple convex teeth and the tooth top cover, and the welding flux is contained in the welding gap and extends under the action of capillary force; the metal connecting piece is welded to the toothed plate and the tooth top cover. According to the water-cooling head assembly, the tooth crest and the tooth crest cover are welded and fixed through the metal connecting piece with the capillary structure, water flow is prevented from passing through the tooth crest bypass, meanwhile, the internal pressure resistance of the water-cooling head assembly is enhanced, meanwhile, the convex teeth are prevented from deforming and inclining, and the use reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of computer components, in particular to a water cooling head component and a cooling device. Background Art

[0002] High-performance computing chips generate a huge amount of heat, and the common air cooling has reached its limit. Water cooling has a good cooling effect on chips, and the market demand is increasing. However, the internal teeth and tooth tops of common water cooling heads are not connected. Since the faster the flow rate of the working fluid, the higher the heat exchange efficiency, the working fluid pressure inside the water cooling head will be too high during high-efficiency heat dissipation, causing deformation inside the water cooling head and affecting the performance of the water cooling head. The reason for this phenomenon is that when using ordinary gap welding methods, such as gap brazing, the solder will flow into the tooth gap and block the gap, and the welding method is not strong enough; and when using interference gap brazing or diffusion welding, the water cooling head is subjected to large forces inside, causing the thinner tooth wall to deform and tilt easily, affecting the spacing between teeth, resulting in a decrease in the heat dissipation capacity of the water cooling head.

[0003] Therefore, there is an urgent need to provide a water-cooling head assembly and a cooling device to solve the above-mentioned technical problems in the prior art. Utility Model Content

[0004] The utility model aims to provide a water cooling head assembly, which can improve its own heat dissipation and cooling capabilities, and has higher internal welding strength, thereby improving the reliability of use.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The water cooling head assembly includes a tooth plate, a tooth top cover and a metal connecting piece, one end of the tooth plate is used for heat exchange connection with a heat source, and the other end is provided with a plurality of convex teeth; the tooth plate is provided with a water inlet and a water outlet, and the water inlet and the water outlet are connected to the gap between two adjacent convex teeth; the tooth top cover is provided on the top of the convex teeth, and a welding gap of a preset thickness is provided between the tooth top cover and the convex teeth; the metal connecting piece has a capillary structure for accommodating solder, and the surface is coated with solder to form a solder layer, the metal connecting piece is clamped between the plurality of convex teeth and the tooth top cover, the solder layer is accommodated in the welding gap and extends under the capillary force of the welding gap; the metal connecting piece welds the convex teeth and the tooth top cover together through the solder layer.

[0007] Optionally, the metal connecting sheet is woven from metal wires, and includes a first wire portion extending along a thickness direction of the convex teeth, and a second wire portion extending along a width direction of the convex teeth, and the first wire portion is perpendicular to the second wire portion.

[0008] Optionally, the material hardness of the metal wire is not greater than the hardness of the protruding teeth.

[0009] Optionally, the metal connecting sheet is formed by etching a metal plate, and the metal plate is concavely provided with a plurality of etching grooves, and the etching grooves are used to accommodate solder.

[0010] Optionally, a plurality of the etching grooves are arranged and distributed in a point shape, or a plurality of the etching grooves are interconnected and form a network.

[0011] Optionally, the thickness of the welding gap is smaller than the total thickness of the metal connecting sheet and the solder layer.

[0012] Optionally, the thickness of the welding gap is greater than the thickness of the metal connecting sheet.

[0013] Optionally, the thickness of the convex teeth is not less than 0.08 mm, and the thickness of the gap between two adjacent convex teeth is not less than 0.05 mm.

[0014] Another object of the present invention is to provide a cooling device, which includes the water cooling head assembly described in any of the above schemes, wherein a cooling medium is arranged in the water cooling head assembly.

[0015] Beneficial effects:

[0016] The water-cooled head assembly in the utility model is provided with a metal connecting piece between the top end of the convex tooth of the tooth plate and the top cover plate, and the surface of the metal connecting piece is coated with solder. When the metal connecting piece is welded with the convex tooth and the top cover plate, the solder fills in the welding gap between the tooth top cover and the convex tooth, and under the action of capillary force, the solder extends in an arc shape and fills the entire welding gap. Then the metal connecting piece is welded with the convex tooth and the tooth top cover, so that the tooth top cover can be firmly fixed to the top end of the convex tooth, and the solder only extends in the welding gap and will not contaminate the gap between adjacent convex teeth, thereby ensuring that the heat dissipation and cooling capacity of the water-cooled head assembly is not affected by the welding process; at the same time, since the solder extends in an arc shape, the contact area between the solder and the top end of the convex tooth can be expanded, providing higher welding strength, firmly fixing the convex tooth to the metal connecting piece, avoiding deformation of the convex tooth, and not causing the convex tooth to tilt due to the increase of the working fluid pressure inside the water-cooled head assembly, thereby improving the reliability of use and heat dissipation performance of the water-cooled head assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the local structure of the water cooling head assembly provided by the specific embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of a metal connecting piece made of metal wires provided in a specific embodiment of the utility model;

[0019] Figure 3 It is a partial enlarged schematic diagram of the top of the convex teeth of the water cooling head assembly provided by the specific embodiment of the utility model;

[0020] Figure 4 It is a partial enlarged schematic diagram of the top of the convex teeth of the water-cooling head assembly in another optional embodiment provided by the specific implementation method of the utility model;

[0021] Figure 5 It is a partial enlarged schematic diagram of another perspective of the top of the convex teeth of the water cooling head assembly provided by the specific embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of a metal connecting piece formed by etching a metal plate provided in a specific embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of a metal connecting piece formed by etching a metal plate in another optional embodiment provided by the specific implementation mode of the utility model;

[0024] Figure 8 It is a schematic diagram of a metal connecting piece formed by etching a metal plate in another optional embodiment provided in the specific implementation manner of the utility model.

[0025] In the figure:

[0026] 100, tooth plate; 110, convex teeth; 200, tooth top cover; 300, metal connecting piece; 310, solder layer; 320, first wire portion; 330, second wire portion; 340, etching groove. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] Please refer to Figure 1 In this embodiment, the water cooling head assembly includes a tooth plate 100, a tooth top cover 200 and a metal connecting sheet 300. One end of the tooth plate 100 is used for heat exchange connection with a heat source, and the other end is provided with a plurality of convex teeth 110; the tooth plate 100 is provided with a water inlet and a water outlet, and the water inlet and the water outlet are connected to the gap between two adjacent convex teeth 100; the tooth top cover 200 is provided on the top of the convex teeth 110, and the tooth top cover 200 and the convex teeth 110 are connected. A welding gap of preset thickness is arranged between the above-mentioned metal connecting sheet 300; the above-mentioned metal connecting sheet 300 has a capillary structure for accommodating solder, and the surface is coated with solder to form a solder layer 310, the above-mentioned metal connecting sheet 300 is sandwiched between the plurality of the above-mentioned convex teeth 110 and the above-mentioned tooth top cover 200, and the above-mentioned solder layer 310 is accommodated in the above-mentioned welding gap and extends under the action of the capillary force of the above-mentioned welding gap; the above-mentioned metal connecting sheet 300 welds and fixes the convex teeth 110 and the tooth top cover 200 through the solder layer 310.

[0032] The water-cooled head assembly in this embodiment is provided with a metal connecting piece 300 between the top of the convex tooth 110 of the tooth plate 100 and the top cover plate, and the surface of the metal connecting piece 300 is coated with a solder layer 310. When the metal connecting piece 300 is welded to the convex tooth 110 and the top cover plate, the solder layer 310 fills the welding gap between the tooth top cover 200 and the convex tooth 110, and under the action of capillary force, the solder layer 310 extends in the welding gap and fills the entire welding gap. Subsequently, the metal connecting piece 300 is welded to the convex tooth 110 and the tooth top cover 200, so that the tooth top cover 200 can be firmly fixed on the convex tooth The top of the convex tooth 110 is extended by the solder layer 310 only in the welding gap, and the gap between adjacent convex teeth 110 will not be contaminated, thereby ensuring that the heat dissipation and cooling capacity of the water cooling head assembly is not affected by the welding process; at the same time, since the solder layer 310 extends under the action of capillary force, the contact area between the solder layer 310 and the top of the convex tooth 110 can be expanded, providing higher welding strength, and firmly fixing the convex tooth 110 to the metal connecting sheet 300, thereby avoiding deformation of the convex tooth 110 and preventing the convex tooth 110 from tilting due to the increased working fluid pressure inside the water cooling head assembly, thereby improving the reliability and heat dissipation performance of the water cooling head assembly.

[0033] Optionally, the thickness of the welding gap is less than the total thickness of the metal connecting sheet 300 and the solder layer 310. When the metal connecting sheet 300 is placed in the welding gap, since the thickness of the welding gap is less than the total thickness of the metal connecting sheet 300 and the solder layer 310, the solder layer 310 is squeezed by the welding gap, so that the solder layer 310 extends in the welding gap, increasing the contact area between the solder layer 310 and the convex tooth 110, improving the welding strength, and preventing the convex tooth 110 from deforming.

[0034] Furthermore, the thickness of the welding gap is greater than the thickness of the metal connecting sheet 300. Such a welding gap can ensure that the metal connecting sheet 300 can smoothly enter the welding gap, and prevent the protruding teeth 110 from being squeezed and deformed by the metal connecting sheet 300; after the installation is completed, the welding gap can be further squeezed to reduce the size of the welding gap, so that the metal connecting sheet 300 and the protruding teeth 110 are interference-connected, which will not be repeated here.

[0035] Optionally, the thickness of the convex teeth 110 is not less than 0.08 mm, and the thickness of the gap between two adjacent convex teeth 110 is not less than 0.05 mm. The thickness of the convex teeth 110 is not less than 0.08 mm, which can ensure the mechanical strength of the convex teeth 110 itself; the gap between two adjacent convex teeth 110 is not less than 0.05 mm, which can prevent the solder layer 310 from extending in the gap between two adjacent convex teeth 110 due to capillary force, avoid blocking the gap between the convex teeth 110, and ensure a good heat dissipation effect of the water cooling head assembly.

[0036] like Figures 2 to 5 As shown, the metal connecting sheet 300 is woven from metal wires, and includes a first wire portion 320 extending along the thickness direction of the protruding tooth 110, and a second wire portion 330 extending along the width direction of the protruding tooth 110, and the first wire portion 320 is perpendicular to the second wire portion 330. Figure 2 As shown, the first wire portion 320 is perpendicular to the second wire portion 330, forming a square checkerboard-like weaving pattern. Of course, diamond weaving or rectangular weaving can also be used, and there is no specific limitation here.

[0037] like Figure 3 As shown, the first wire portion 320 is gap-matched with the tooth top cover 200 and the welding gap at the top of the convex tooth 110, the solder layer 310 completely fills the welding gap, and the solder layer 310 on both sides of the first wire portion 320 extends in an arc shape, and the solder layer 310 forms a cross-like T-shaped overlap shape, which is extended in an arc shape by 4 points to form a corrugated ring solder area, thereby increasing the contact area between the solder layer 310 and the welding gap, enhancing the welding strength, and forming a firm connection.

[0038] Of course, if Figure 4 As shown, the welding gap between the first wire portion 320, the tooth top cover 200 and the top of the convex tooth 110 is in interference fit, and the first wire portion 320, the tooth top cover 200 and the convex tooth 110 are squeezed against each other, and the first wire portion 320 or the convex tooth 110 is deformed at the contact point, so that the convex tooth 110 is subjected to pressure along its own height direction, which prevents the convex tooth 110 from tilting and deforming to both sides, improves the bending strength of the convex tooth 110, and ensures the heat dissipation effect of the water cooling head assembly.

[0039] Optionally, the material hardness of the metal wire is not greater than the hardness of the convex teeth 110. That is, when the first wire portion 320, the tooth top cover 200 and the convex teeth 110 are pressed against each other, the first wire portion 320 is deformed at the contact point, thereby preventing the convex teeth 110 from deforming, thereby ensuring the reliability of the water cooling head assembly.

[0040] like Figure 5 As shown, the second wire portion 330 extends along the width direction of the above-mentioned convex tooth 110, and the solder layer 310 is completely filled between two adjacent second wire portions 330. Only a small part of the solder layer 310 extends between two adjacent convex teeth 110 under the action of capillary force, forming a firm connection between the metal connecting sheet 300 and the convex tooth 110.

[0041] like Figures 6 to 8As shown, optionally, the metal connecting piece 300 is formed by etching a metal plate, and the metal plate is concavely provided with a plurality of etching grooves 340, and the etching grooves 340 are used to accommodate solder. Using the etching grooves 340 to accommodate solder can also allow the solder in the etching grooves 340 to extend into the welding gap under the action of capillary force, so that the metal connecting piece 300 formed in this way has a better front angle and can form a firm connection with the protruding teeth 110.

[0042] Furthermore, a plurality of the etching grooves 340 are arranged in a dotted pattern, or a plurality of the etching grooves 340 are interconnected and form a mesh. Specifically, the etching grooves 340 are provided on both the front and back sides of the metal plate or only on one side. Figure 6 and Figure 7 As shown, when the etching grooves 340 are arranged in dots, the shape of the etching grooves 340 is not limited to square, circle, rhombus or polygon. In this embodiment, a square is selected; and the etching grooves 340 can be through holes or blind holes, both of which can accommodate solder. Figure 6 As shown, the dot-shaped etched grooves 340 are first etched to form through grooves extending in the length direction, and then through holes are etched on the bottom wall of the through grooves, thereby forming the etched grooves 340; Figure 7 As shown, the etching groove 340 extends along the length direction on the top wall of the metal plate, and the etching groove 340 extends along the width direction on the bottom wall of the metal plate. The etching grooves 340 at the bottom and top are connected to each other. A plurality of etching grooves 340 are arranged horizontally and vertically to form a mesh structure, so that a through hole is formed on the metal plate. The solder is filled in the etching groove 340, and the metal plate can abut against the convex tooth 110, so that the metal plate and the convex tooth 110 are in interference connection while the solder extends in the welding gap, thereby preventing the convex tooth 110 from being deformed or tilted; Figure 8 As shown, the metal plate has only a top etched groove 340 extending from the extension line and used to accommodate solder, which has a simple structure and is easier to process.

[0043] The size of the etched groove 340 or the mesh formed by the first wire portion 320 and the second wire portion 330 can be adjusted according to demand, so as to control the amount of solder on the surface of the metal connecting sheet 300, as long as the solder in the mesh does not overflow.

[0044] This embodiment also provides a method for manufacturing a water cooling head assembly, which is used to manufacture a water cooling head assembly as described in any of the above solutions, and includes the following steps:

[0045] S1, processing to obtain the above-mentioned metal connecting sheet 300;

[0046] S2, coating solder on the surface of the metal connecting sheet 300, scraping the solder flat and drying it to form the solder layer 310;

[0047] S3, placing the tooth plate 100, the metal connecting sheet 300 and the tooth top cover 200 into the welding tool in sequence;

[0048] S4, welding and fixing the tooth plate 100, the metal connecting plate 300 and the tooth top cover 200.

[0049] Among them, during welding, the welding process adopted can be brazing or diffusion welding, which is not specifically limited here.

[0050] The method for manufacturing a water-cooled head assembly comprises the following steps: firstly, a metal connecting sheet 300 is obtained by processing, and a solder layer 310 is coated on the surface of the metal connecting sheet 300, and then the tooth plate 100, the metal connecting sheet 300 and the tooth top cover 200 are sequentially placed in a welding tool, and when the metal connecting sheet 300 is welded to the convex tooth 110 and the top cover plate, the solder layer 310 is filled in the welding gap between the tooth top cover 200 and the convex tooth 110, and under the action of capillary force, the solder layer 310 extends in an arc shape and fills the entire welding gap, and then the metal connecting sheet 300 is welded to the convex tooth 110 and the tooth top cover 200, so that the tooth top cover 200 can be welded. 00 is firmly fixed on the top of the convex tooth 110, and the solder layer 310 only extends in the welding gap, and will not contaminate the gap between adjacent convex teeth 110, thereby ensuring that the heat dissipation and cooling capacity of the water cooling head assembly is not affected by the welding process; at the same time, since the solder layer 310 extends in an arc shape, the contact area between the solder layer 310 and the top of the convex tooth 110 can be expanded, providing higher welding strength, and firmly fixing the convex tooth 110 to the metal connecting plate 300, thereby avoiding deformation of the convex tooth 110 and preventing the convex tooth 110 from tilting due to the increased working fluid pressure inside the water cooling head assembly, thereby improving the reliability and heat dissipation performance of the water cooling head assembly.

[0051] This embodiment further provides a cooling device, which includes the water cooling head assembly described in any of the above schemes, wherein a cooling medium is arranged in the water cooling head assembly. The cooling device uses the water cooling head assembly to ensure the mechanical strength of the water cooling head assembly, and when a higher heat dissipation capacity is required, the pressure of the cooling medium can be continuously increased, and the convex teeth 110 will not be deformed, thereby ensuring that the heat dissipation capacity of the cooling device is not affected, and the reliability and service life of the cooling device are also improved.

[0052] In this embodiment, the cooling device is used for heat dissipation of chips or graphics cards in a computer. No specific limitation is made here. As long as the water cooling head assembly is used, it is within the protection scope of the claims of the utility model.

[0053] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A water cooling head assembly, characterized in that: include: A tooth plate (100), one end of the tooth plate (100) being used for heat exchange connection with a heat source, and the other end being provided with a plurality of convex teeth (110); the tooth plate (100) being provided with a water inlet and a water outlet, the water inlet and the water outlet being connected to the gap between two adjacent convex teeth (110); A tooth top cover (200), wherein the tooth top cover (200) is arranged on the top of the convex tooth (110), and a welding gap of a preset thickness is arranged between the tooth top cover (200) and the convex tooth (110); A metal connecting sheet (300), the metal connecting sheet (300) having a capillary structure for accommodating solder, and having a surface coated with solder to form a solder layer (310), the metal connecting sheet (300) being sandwiched between a plurality of the convex teeth (110) and the tooth top cover (200), the solder layer (310) being accommodated in the soldering gap and extending under the action of the capillary force of the soldering gap; The metal connecting sheet (300) is used to weld and fix the protruding tooth (110) and the tooth top cover (200) via a solder layer (310).

2. The water cooling head assembly according to claim 1, characterized in that: The metal connecting sheet (300) is woven from metal wires, and comprises a first wire portion (320) extending along the thickness direction of the convex tooth (110), and a second wire portion (330) extending along the width direction of the convex tooth (110), wherein the first wire portion (320) is perpendicular to the second wire portion (330).

3. The water cooling head assembly according to claim 2, characterized in that: The material hardness of the metal wire is no greater than the hardness of the protruding teeth (110).

4. The water cooling head assembly according to claim 1, characterized in that: The metal connecting sheet (300) is formed by etching a metal plate, and the metal plate is concavely provided with a plurality of etching grooves (340), and the etching grooves (340) are used to accommodate solder.

5. The water cooling head assembly according to claim 4, characterized in that: A plurality of the etching grooves (340) are arranged and distributed in a dotted manner, or a plurality of the etching grooves (340) are interconnected and form a network.

6. The water cooling head assembly according to claim 1, characterized in that: The thickness of the welding gap is smaller than the total thickness of the metal connecting sheet (300) and the solder layer (310).

7. The water cooling head assembly according to claim 6, characterized in that: The thickness of the welding gap is greater than the thickness of the metal connecting sheet (300).

8. The water cooling head assembly according to any one of claims 1 to 7, characterized in that: The thickness of the convex teeth (110) is not less than 0.08 mm, and the thickness of the gap between two adjacent convex teeth (110) is not less than 0.05 mm.

9. A cooling device, characterized in that: It comprises a water cooling head assembly as claimed in any one of claims 1 to 8, wherein a cooling medium is arranged in the water cooling head assembly.

Images