Double-sided liquid cooling radiator
By designing upper and lower grooves on the liquid-cooled radiator substrate and covering the upper and lower covers to form a double-sided cooling structure, the problem of low utilization rate of existing liquid-cooled radiators is solved, and the effect of double-sided cooling and cost reduction is achieved.
Patent Information
- Application Number
- CN202422287065.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-19
AI Technical Summary
Existing liquid-cooled radiators usually only can refrigerate on one side, with low utilization rate and cannot effectively cool objects to be cooled on both sides.
A double-sided liquid-cooled radiator is designed. The upper and lower grooves are respectively provided on the upper and lower surfaces of the substrate, and are covered by the upper cover plate and the lower cover plate to form an upper and lower chambers. The coolant flows in the chamber, and objects to be cooled are arranged on both sides, which have high utilization rate and are connected to improve stability and production efficiency.
Double-sided cooling is achieved, the utilization rate of radiators is improved, the number of radiators is reduced, and the cost is reduced.
Smart Images
Figure CN223092878U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of radiators, in particular to a double-sided liquid-cooled radiator. Background Art
[0002] The existing liquid-cooled radiators usually cool on one side only. The coolant is accommodated in the middle of the liquid-cooled radiator, and the coolant can only dissipate heat from the objects to be cooled (such as chips, power devices / modules, etc.) provided on the upper surface or the lower surface, so the utilization rate of the liquid-cooled radiator is relatively low. Content of the Utility Model
[0003] Aiming at the above problems of the prior art, the purpose of the utility model is to provide a double-sided liquid-cooled radiator, which is simple to manufacture, has a high utilization rate, and low cost.
[0004] To solve the above problems, the utility model provides a double-sided liquid-cooled radiator, which comprises:
[0005] A substrate, on the upper surface and the lower surface of which there are formed an upper groove and a lower groove respectively. The upper groove forms a first through hole and a second through hole at both ends thereof, which penetrate through the substrate in the thickness direction. On the side of the substrate, there are formed a liquid inlet hole and a liquid outlet hole that communicate with the first through hole and / or the second through hole;
[0006] An upper cover plate, which covers the upper groove to close the opening at the top of the upper groove. On the lower surface of the upper cover plate, there are formed a plurality of first pin fins;
[0007] A lower cover plate, which covers the lower groove to close the opening at the top of the lower groove. On the upper surface of the lower cover plate, there are formed a plurality of second pin fins;
[0008] On the upper surface of the upper cover plate and the lower surface of the lower cover plate, objects to be cooled can be provided.
[0009] Furthermore, the upper groove and the lower groove form multiple groups of grooves, and the multiple groups of grooves are arranged along the length direction of the substrate. Each group of grooves includes an upper groove and a lower groove corresponding to each other up and down.
[0010] Furthermore, the first through holes of all the upper grooves are arranged at intervals, and the second through holes of all the upper grooves are communicated with each other. The liquid inlet hole and the liquid outlet hole are respectively communicated with two of the first through holes located at both ends in the length direction of the substrate.
[0011] Furthermore, the upper cover plate covers the openings at the tops of all the upper grooves, and the lower cover plate covers the openings at the bottoms of all the lower grooves.
[0012] Further, a first step that is recessed downward is formed at the top of the side of the upper groove, and a second step that is recessed upward is formed at the top of the side of the lower groove. The upper cover plate is disposed on the first step, and the lower cover plate is disposed on the second step.
[0013] Further, the upper cover plate is connected to the upper groove by a first welding, and the lower cover plate is connected to the lower groove by a second welding.
[0014] Further, both the first welding connection and the second welding connection are friction stir welding connections.
[0015] Further, both the upper cover plate and the lower cover plate are cold forging parts.
[0016] Further, the pin fins are formed in a columnar shape, and the end faces of the pin fins are formed in an oval shape, a circular shape or a polygonal shape.
[0017] Further, the upper cover plate and the lower cover plate are formed as aluminum parts or copper parts.
[0018] Due to the above technical solution, the present utility model has the following beneficial effects:
[0019] According to the double-sided liquid cooling radiator of the present utility model, the coolant enters the upper groove and the lower groove from the liquid inlet of the substrate, flows in the chambers formed by the upper groove and the upper cover plate and the lower groove and the lower cover plate, and finally the coolant flows out of the upper groove and the lower groove from the liquid outlet. The upper surface of the upper cover plate and the lower surface of the lower cover plate can both be provided with objects to be cooled, and objects to be cooled can be provided on both sides, improving the utilization rate. When cooling a plurality of objects to be cooled, the number of radiators used can be reduced, and the cost can be lowered. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.
[0021] Figure 1 is a structural diagram of a double-sided liquid cooling radiator according to an embodiment of the present utility model;
[0022] Figure 2 is Figure 1 an exploded view of the double-sided liquid cooling radiator of the embodiment;
[0023] Figure 3 is a structural diagram of a substrate according to an embodiment of the present utility model;
[0024] Figure 4 It is a structural diagram of the upper cover plate according to an embodiment of the present utility model;
[0025] Figure 5 It is a structural diagram of the cooperation between the double-sided liquid-cooled radiator and the object to be cooled according to an embodiment of the present utility model.
[0026] Attachment markings:
[0027] 100, substrate; 110, upper groove; 111, first through hole; 112, second through hole; 120, liquid inlet hole; 130, liquid outlet hole; 200, upper cover plate; 210, first pin fin; 300, lower cover plate; 400, object to be cooled. Detailed implementation manners
[0028] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0029] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.
[0030] Next, the double-sided liquid-cooled radiator according to the embodiment of the present utility model will be described.
[0031] As Figures 1 to 5 shown, the double-sided liquid-cooled radiator according to the embodiment of the present utility model includes a substrate 100, an upper cover plate 200, and a lower cover plate 300.
[0032] First, the substrate 100 will be described. Upper and lower grooves are formed on the upper and lower surfaces of the substrate 100. The upper groove 110 forms first through holes 111 and second through holes 112 that penetrate the substrate 100 in the thickness direction at both ends thereof. Liquid inlet holes 120 and liquid outlet holes 130 that communicate with the first through hole 111 and / or the second through hole 112 are formed on the side of the substrate 100.
[0033] As Figure 3As shown, symmetric upper grooves 110 and lower grooves are formed on the upper surface and lower surface of the substrate 100. First through holes 111 and second through holes 112 that connect the upper groove 110 and the lower groove (penetrating the substrate 100 in the thickness direction) are respectively formed at both ends of the upper groove 110 in the width direction.
[0034] The upper grooves 110 and the lower grooves can accommodate coolant. The coolant can be injected into the upper grooves 110 and the lower grooves through the liquid inlet hole 120, and the coolant can flow out of the upper grooves 110 and the lower grooves through the liquid outlet hole 130.
[0035] Next, the upper cover plate 200 and the lower cover plate 300 will be described. The upper cover plate 200 covers the upper groove 110 to close the opening at the top of the upper groove 110. A plurality of first pin fins 210 are formed on the lower surface of the upper cover plate 200. The lower cover plate 300 covers the lower groove to close the opening at the top of the lower groove. A plurality of second pin fins are formed on the upper surface of the lower cover plate 300. The objects to be cooled 400 can be arranged on both the upper surface of the upper cover plate 200 and the lower surface of the lower cover plate 300.
[0036] A plurality of first pin fins 210 are provided on the lower surface of the upper cover plate 200. The upper cover plate 200 covers the upper groove 110. When the upper groove 110 contains coolant, the first pin fins 210 can be inserted into the coolant, which can increase the contact area between the coolant and the upper cover plate 200 and improve the heat dissipation efficiency. A plurality of second pin fins are provided on the upper surface of the lower cover plate 300. The lower cover plate 300 covers the lower groove. When the lower groove contains coolant, the second pin fins can be inserted into the coolant, which can increase the contact area between the coolant and the lower cover plate 300 and improve the heat dissipation efficiency.
[0037] The objects to be cooled 400 can be arranged on both the upper surface of the upper cover plate 200 and the lower surface of the lower cover plate 300, so that the objects to be cooled 400 can be arranged on both sides, improving the utilization rate. When cooling a plurality of objects to be cooled 400, the number of radiators used can be reduced, and the cost can be lowered.
[0038] For the above double-sided liquid-cooled radiator, the coolant enters the upper grooves 110 and the lower grooves from the liquid inlet of the substrate 100, flows in the chambers formed by the upper grooves 110 and the upper cover plate 200 and the lower grooves and the lower cover plate 300, and finally the coolant flows out of the upper grooves 110 and the lower grooves from the liquid outlet. The objects to be cooled 400 can be arranged on both the upper surface of the upper cover plate 200 and the lower surface of the lower cover plate 300, so that the objects to be cooled 400 can be arranged on both sides, improving the utilization rate. When cooling a plurality of objects to be cooled 400, the number of radiators used can be reduced, and the cost can be lowered.
[0039] In some embodiments of the present utility model, multiple groups of grooves are formed by the upper grooves 110 and the lower grooves. The multiple groups of grooves are arranged along the length direction of the substrate 100. Each group of grooves includes an upper groove 110 and a lower groove corresponding to each other up and down. Among them, the multiple groups can be two groups, three groups, five groups, etc.
[0040] Multiple spaces for accommodating the coolant can be provided through the multiple groups of grooves. There can be one or more upper covers 200 and lower covers 300 to cover all the multiple groups of grooves, so as to be able to cool multiple groups of objects to be cooled 400 (each group of objects to be cooled 400 includes two objects to be cooled 400 corresponding to each other up and down), and the utilization rate can be further increased.
[0041] Furthermore, the first through holes 111 of all the upper grooves 110 are arranged at intervals, and the second through holes 112 of all the upper grooves 110 are connected and communicated. The liquid inlet hole 120 and the liquid outlet hole 130 are respectively communicated with two first through holes 111 located at both ends of the substrate 100 in the length direction.
[0042] As Figure 3 shown, the double-sided liquid cooling radiator has two groups of grooves. The two first through holes 111 are arranged at intervals, and the two second through holes 112 are connected and communicated. Thus, each group of grooves can be connected and communicated with each other, and one liquid inlet hole 120 and one liquid outlet hole 130 can enable the coolant to flow between each group of grooves, making the structure simple. It should be noted that the above are only optional examples, and the number of groups of grooves is not limited here.
[0043] The liquid inlet hole 120 and the liquid outlet hole 130 are respectively communicated with two first through holes 111 located at both ends of the substrate 100 in the length direction, which can enable the coolant to flow into each group of grooves in sequence, increasing the smoothness of the coolant flow path.
[0044] Furthermore, the upper cover 200 covers the openings at the tops of all the upper grooves 110, and the lower cover 300 covers the openings at the bottoms of all the lower grooves.
[0045] As Figure 2 shown, by covering the upper grooves 110 of each group of grooves with one upper cover 200 and covering the lower grooves of each group of grooves with one lower cover 300, the structure is relatively simple, which is convenient for the processing of the upper cover 200 and the lower cover 300, and is also convenient for the assembly of the double-sided liquid cooling radiator, avoiding the situation of complex processing and inconvenient assembly caused by using multiple upper covers 200 and lower covers 300.
[0046] In some embodiments of the present utility model, a first step that is recessed downward is formed at the top of the side of the upper groove 110, and a second step that is recessed upward is formed at the top of the side of the lower groove. The upper cover 200 is arranged on the first step, and the lower cover 300 is arranged on the second step.
[0047] AsFigures 2 to 4 As shown, the upper cover plate 200 is placed on the first step formed by the upper groove 110, and the lower cover plate 300 is placed on the second step formed by the lower groove. Thus, the height difference between the upper surface of the upper cover plate 200 and the upper surface of the substrate 100, and between the lower surface of the lower cover plate 300 and the lower surface of the substrate 100 can be reduced, increasing the flatness.
[0048] Furthermore, the upper cover plate 200 is connected to the upper groove 110 by a first welding connection, and the lower cover plate 300 is connected to the lower groove by a second welding connection.
[0049] The welding connection can make the upper cover plate 200 and the upper groove 110, and the lower cover plate 300 and the lower groove be tightly connected, increasing the structural stability.
[0050] Furthermore, both the first welding connection and the second welding connection are friction stir welding connections.
[0051] Friction stir welding has stable welding and high welding efficiency, which can improve the production efficiency of the double-sided liquid-cooled radiator, reduce costs, and has a stable structure.
[0052] In some embodiments of the present utility model, both the upper cover plate 200 and the lower cover plate 300 are cold forging parts.
[0053] Compared with cutting or CNC lathe machining, cold forging parts can improve production efficiency, have a high yield rate, can save costs, and meet the requirements of mass production.
[0054] Furthermore, the pin fins are formed into columns, and the end faces of the pin fins are formed into ellipses, circles or polygons.
[0055] As Figure 4 shown, the pin fins are formed into columns, and the shape of the end face is an ellipse. It should be noted that the above are only optional examples, and the end face can also be triangular, hexagonal, rectangular or circular, and these should all be understood to be within the scope of the present utility model.
[0056] Furthermore, the upper cover plate 200 and the lower cover plate 300 are formed into aluminum parts or copper parts.
[0057] The upper cover plate 200 and the lower cover plate 300 made of copper parts and aluminum parts are relatively easy to be formed by cold forging, and have a high thermal conductivity, which can improve the heat dissipation efficiency.
[0058] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A double-sided liquid-cooled radiator, characterized in that, The double-sided liquid-cooled radiator includes: a substrate, on the upper surface and the lower surface of which upper grooves and lower grooves are formed. The upper grooves form first through holes and second through holes that penetrate the substrate in the thickness direction at both ends thereof. Liquid inlet holes and liquid outlet holes communicating with the first through holes and / or the second through holes are formed on the side of the substrate; an upper cover plate that covers the upper grooves to close the openings at the tops of the upper grooves, and a plurality of first pin fins are formed on the lower surface of the upper cover plate; a lower cover plate that covers the lower grooves to close the openings at the tops of the lower grooves, and a plurality of second pin fins are formed on the upper surface of the lower cover plate; Objects to be cooled can be arranged on both the upper surface of the upper cover plate and the lower surface of the lower cover plate.
2. The double-sided liquid-cooled radiator according to claim 1, wherein, A plurality of groups of grooves are formed in the upper grooves and the lower grooves, and the plurality of groups of grooves are arranged along the length direction of the substrate. Each group of grooves includes an upper groove and a lower groove corresponding to each other up and down.
3. The double-sided liquid-cooled radiator according to claim 2, wherein The first through holes of all the upper grooves are arranged at intervals, and the second through holes of all the upper grooves communicate with each other. The liquid inlet holes and the liquid outlet holes respectively communicate with two of the first through holes located at both ends in the length direction of the substrate.
4. The double-sided liquid-cooled radiator according to claim 3, wherein The upper cover plate covers the openings at the tops of all the upper grooves, and the lower cover plate covers the openings at the bottoms of all the lower grooves.
5. The double-sided liquid-cooled radiator according to claim 1, characterized in that, A first step that is recessed downward is formed at the top of the side of the upper groove, and a second step that is recessed upward is formed at the top of the side of the lower groove. The upper cover plate is arranged on the first step, and the lower cover plate is arranged on the second step.
6. The double-sided liquid-cooled radiator according to claim 5, wherein The upper cover plate is connected to the upper groove by first welding, and the lower cover plate is connected to the lower groove by second welding.
7. The double-sided liquid-cooled radiator according to claim 6, wherein, Both the first welding connection and the second welding connection are friction stir welding connections.
8. The double-sided liquid-cooled radiator according to claim 1, wherein, Both the upper cover plate and the lower cover plate are cold forging parts.
9. The double-sided liquid-cooled radiator according to claim 8, wherein, The pin fins are formed in a columnar shape, and the end surfaces of the pin fins are formed in an oval shape, a circular shape or a polygonal shape.
10. The double-sided liquid-cooled radiator according to claim 9, wherein, Both the upper cover plate and the lower cover plate are formed as aluminum parts or copper parts.