Oppositely-embraced radiator and power supply system
Through the design of the double-hugging radiator and the use of interface materials, the problem of efficient heat dissipation in a limited space is solved, achieving simple assembly and low cost, while improving the heat dissipation effect and reducing system noise.
Patent Information
- Application Number
- CN202411477482.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-01-21
AI Technical Summary
The prior art is difficult to achieve efficient heat dissipation in a limited space while keeping assembly simple and cost-effective.
Adopting a counter-hugging radiator design, mutual heat transfer is achieved through the symmetrical counter-hugging structure of the first radiator and the second radiator and the use of interface materials, and the heat transfer effect is enhanced through oblique extrusion force to avoid the problems of welding. High cost.
It improves the heat dissipation effect, saves design space, reduces product weight and volume, simplifies the assembly process, and reduces system noise and cost.
Smart Images
Figure CN119342762A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a radiator, in particular to a double-embracing radiator. Background Art
[0002] When the power supply system is working, a large amount of heat is generated, and a heat sink is usually required to dissipate the heat to ensure the normal operation of the power supply system.
[0003] The power supply system often has multiple working states, and each module may not work at the same time, as follows Figure 1 and Figure 2 In the power system shown, when module a and module b work at the same time, module c and module d do not work; when module c and module d work at the same time, module a and module b do not work. In order to make the heat sink more efficient, the current technology uses heat sink welding, welding the upper and lower heat sinks together, which greatly increases the cost.
[0004] like Figure 2 As shown, module a and module b share a heat sink a, module c and module d share a heat sink b, and the two heat sinks are separated in the middle. Since the two heat sinks are separated, the two heat sinks can only dissipate heat for the modules connected to them, but not for the modules on the opposite side. For example, when module a and module b are working, module c and module d are not working. In this case, heat sink b cannot dissipate heat for module a and module b. In order to achieve the heat dissipation effect, it is often necessary to increase the heat sink design, which increases the weight and volume of the system. However, the design space of the power supply system is often limited, or under the current development trend of lightweight and integration, how to ensure the heat dissipation effect in a limited space and save assembly time and cost has become a difficult problem in the industry.
[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art known to a person skilled in the art. Summary of the invention
[0006] The technical problem to be solved by the present invention is: how to solve the current problem of being unable to take into account both simple assembly and good heat dissipation effect.
[0007] The present invention solves the above technical problems through the following technical means:
[0008] The embracing type heat sink comprises a first heat sink, a second heat sink and an interface material;
[0009] The first heat sink comprises a first mounting portion and a plurality of first comb teeth, wherein the plurality of first comb teeth are inclined in the same direction; the second heat sink comprises a second mounting portion and a plurality of second comb teeth, wherein the plurality of second comb teeth are inclined in the same direction; the first comb teeth and the second comb teeth are inclined in opposite directions;
[0010] The ends of the first comb-shaped teeth and the ends of the second comb-shaped teeth are pressed against each other and connected through an interface material.
[0011] In the present invention, the first heat sink and the second heat sink are symmetrically designed, the first comb teeth and the second comb teeth are mutually squeezed in the up and down directions, and the front end of the heat sink teeth has a certain inclination angle, so that a mutual oblique squeezing force is generated, and the interface material 4 between the first comb teeth and the second comb teeth produces a certain amount of deformation, which on the one hand strengthens the structural stability between each other, and on the other hand enhances the mutual heat transfer ability of the two heat sinks. In the present invention, the first heat sink and the second heat sink can be designed to be symmetrically embraced, and then the interface material is added in the middle to strengthen the heat transfer, and the heat sink teeth on each side can be fully utilized for heat dissipation, and when the module on the heat sink on one side is working and the module on the heat sink on the other side is not working, the heat generated by the working module can be conducted to the heat sink on the other side through the interface material to achieve heat dissipation, and there is no need to adopt the existing welding method, so that the assembly process is simple, and the squeezing force between the first comb teeth and the second comb teeth ensures stability and achieves heat conduction. Therefore, the problems of heat dissipation, cost, weight, volume, process, and reliability mentioned in the present invention are cleverly solved, taking into account heat conduction, simple assembly, and meeting the use requirements of limited space, and at the same time, a fan with a small air volume can be selected to reduce system noise and reduce the cost of the power supply system.
[0012] Preferably, the inclination angle of the ends of the first comb teeth and the second comb teeth is 30°-40°.
[0013] The first radiator and the second radiator are tilted and have a certain degree of compressive elastic deformation. When the two are squeezed, an ideal stress angle of 45° is formed on both sides, which can form a relatively stable mutual squeezing force, so that a stable state is formed during squeezing.
[0014] Preferably, the first comb teeth and the second comb teeth are in an arc-shaped structure.
[0015] The first comb teeth and the second comb teeth gradually change from a vertical state to an inclined state, thereby avoiding stress concentration between the first comb teeth and the second comb teeth and ensuring the service life of the first comb teeth and the second comb teeth.
[0016] Preferably, the distance between adjacent first comb teeth is 2-3 times the thickness of the first comb teeth, and the distance between adjacent second comb teeth is 2-3 times the thickness of the second comb teeth.
[0017] To ensure the heat dissipation gap, and because the first comb teeth and the second comb teeth are arranged at an angle, the teeth on the edge may interfere with the box body and need to be removed during use, which brings inconvenience.
[0018] Preferably, the end side of the first comb-like teeth protrudes outward to form a first protrusion, and the first protrusion forms an angle with the end of the first comb-like teeth; the end side of the second comb-like teeth protrudes outward to form a second protrusion, and the second protrusion forms an angle with the end of the second comb-like teeth; the first protrusion abuts against the bottom surface of the second comb-like teeth, and the second protrusion abuts against the bottom surface of the first comb-like teeth, forming a chimeric shape between the first comb-like teeth and the second comb-like teeth.
[0019] Preferably, the distance between the first protrusion and the bottom surface of the first comb-shaped teeth is greater than the length of the interface material, and the distance between the second protrusion and the bottom surface of the second comb-shaped teeth is greater than the length of the interface material.
[0020] The design of the first protrusion and the second protrusion enhances the processability and long-term reliability, facilitates the installation of the interface material and ensures that the interface material is not easy to fall off during long-term use, and enhances the heat transfer between the teeth due to the increased contact area.
[0021] Preferably, the surface between the first comb-shaped teeth and the interface material includes a plurality of convex points, and the surface between the second comb-shaped teeth and the interface material includes a plurality of convex points.
[0022] The design of the protrusions can increase the friction between the first comb teeth and the interface material, further ensuring the stability of the interface material, and the protrusions can be squeezed into the interface material, increasing the contact area and enhancing the heat transfer between the teeth.
[0023] Preferably, after the ends of the first comb teeth, the ends of the second comb teeth and the interface material are assembled, the inclination angle of the contact surface between the first comb teeth and the interface material is 40°-50°, and the inclination angle of the contact surface between the second comb teeth and the interface material is 40°-50°.
[0024] Preferably, the interface material is a thermally conductive gasket or a thermally conductive gel, and the thickness of the interface material is 0.1-0.5 mm.
[0025] The power supply system comprises a box, a double-hugging radiator and a plurality of modules in the box, wherein at least two modules are connected to the mounting portion of the first radiator and at least two modules are connected to the mounting portion of the second radiator.
[0026] The use of the present invention can replace the high cost and development cycle caused by the brazing of two heat sinks in the existing design. Compared with the solution of two separate heat sinks, the heat dissipation effect is greatly improved, and the design space is saved, thereby reducing the weight and volume of the product. At the same time, a low-power fan can be selected to reduce system noise.
[0027] The advantages of the present invention are:
[0028] (1) In the present invention, the first heat sink and the second heat sink are symmetrically designed, the first comb teeth and the second comb teeth squeeze each other in the up and down direction, and the front end of the heat sink teeth has a certain inclination angle, so that a mutual oblique squeezing force is generated, and the interface material 4 between the first comb teeth and the second comb teeth produces a certain amount of deformation, which on the one hand strengthens the structural stability between each other, and on the other hand enhances the mutual heat transfer capacity of the two heat sinks. In the present invention, the first heat sink and the second heat sink can be designed to embrace each other symmetrically, and then the interface material is added in the middle to strengthen the heat transfer, and the heat sink teeth on each side can be fully utilized for heat dissipation. When the module on the heat sink on one side is working and the module on the heat sink on the other side is not working, the heat generated by the working module can be conducted to the heat sink on the other side through the interface material to achieve heat dissipation, and there is no need to use the existing welding method, so the assembly process is simple, and the squeezing force between the first comb teeth and the second comb teeth ensures stability and achieves heat conduction. Therefore, the multiple problems of heat dissipation, cost, weight, volume, process, and reliability mentioned in the present invention are cleverly solved, taking into account heat conduction, simple assembly, and meeting the use requirements of limited space. At the same time, a fan with a smaller air volume can be selected to reduce system noise and reduce the cost of the power supply system;
[0029] (2) The first comb teeth and the second comb teeth are arranged obliquely and have a certain degree of compressive elastic deformation. When the two are squeezed, an ideal force angle of 45° is formed on both sides, which can form a relatively stable mutual squeezing force, so that a stable state is formed during squeezing.
[0030] (3) The first comb teeth and the second comb teeth gradually change from a vertical state to an inclined state, thereby avoiding stress concentration between the first comb teeth and the second comb teeth and ensuring the service life of the first comb teeth and the second comb teeth.
[0031] (4) To ensure the heat dissipation gap, and because the first comb teeth and the second comb teeth are arranged at an angle, the teeth on the edge may interfere with the box body and need to be removed during use, which brings inconvenience.
[0032] (5) The design of the first protrusion and the second protrusion enhances the processability and long-term reliability, facilitates the installation of the interface material, ensures that the interface material is not easy to fall off during long-term use, and enhances the heat transfer between the teeth due to the increased contact area.
[0033] (6) The design of the protrusions can increase the friction between the first comb teeth and the interface material, further ensuring the stability of the interface material, and the protrusions can be squeezed into the interface material, increasing the contact area and enhancing the heat transfer between the teeth.
[0034] (7) The use of the present invention can replace the high cost and development cycle caused by the brazing of two heat sinks in the existing design. Compared with the solution of two separate heat sinks, the present invention greatly improves the heat dissipation effect and saves design space, thereby reducing product weight and volume. At the same time, a low-power fan can be selected to reduce system noise. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 It is a structural schematic diagram of a brazed radiator in the prior art;
[0036] Figure 2 It is a structural schematic diagram of a separate radiator in the prior art;
[0037] Figure 3 It is a structural schematic diagram of the embracing type radiator in the first embodiment of the present invention;
[0038] Figure 4 is a schematic structural diagram of a first radiator in Embodiment 1 of the present invention;
[0039] Figure 5 is a schematic diagram of the connection between the first comb teeth and the second comb teeth in the first embodiment of the present invention;
[0040] Figure 6 is a schematic structural diagram of a first radiator in Embodiment 2 of the present invention;
[0041] Figure 7 is a schematic diagram of the connection between the first comb teeth and the second comb teeth in the second embodiment of the present invention;
[0042] Figure 8 is a schematic diagram of the structure of the power supply system in the third embodiment of the present invention;
[0043] Numbers in the figure:
[0044] 1. a first heat sink; 11. a first mounting portion; 12. a first comb-shaped tooth;
[0045] 2. second heat sink; 21. second mounting portion; 22. second comb teeth;
[0046] 3. Interface material; 4. Box; 5. Module. DETAILED DESCRIPTION
[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0048] Embodiment 1:
[0049] like Figure 3 As shown, the hugging heat sink includes a first heat sink 1, a second heat sink 2, and an interface material 3; the first heat sink 1 includes a first mounting portion 11 and a plurality of first comb teeth 12, and the plurality of first comb teeth 12 are inclined in the same direction (left side); the second heat sink 2 includes a second mounting portion 21 and a plurality of second comb teeth 22, and the plurality of second comb teeth 22 are inclined in the same direction (right side); the inclination direction of the first comb teeth 12 is opposite to that of the second comb teeth 22; the end portions of the first comb teeth 12 and the end portions of the second comb teeth 22 are pressed against each other and connected by the interface material 3.
[0050] Specifically, the first radiator 1 and the second radiator 2 are arranged vertically. In this embodiment, the first radiator 1 and the second radiator 2 have substantially the same structure, except that the first comb teeth 12 and the second comb teeth 22 have different inclination directions. Figure 4 As shown, the bottom surface of the first mounting portion 11 is evenly connected to a plurality of first comb-shaped teeth 12 .
[0051] It should be noted that the first comb teeth 12 are arc-shaped. Preferably, the first comb teeth 12 and the second comb teeth 22 gradually change from a vertical state to an inclined state, and can gradually transition from an inclination of 10° to an inclination of 30°. In this embodiment, the inclination angle is relative to the vertical plane. The purpose of the gradual inclination is to avoid stress concentration between the first comb teeth 12 and the second comb teeth 22. There may be a risk of breakage after stress concentration, so the gradual inclination can ensure the service life of the first comb teeth 12 and the second comb teeth 22.
[0052] like Figure 5As shown, in this embodiment, the inclination angle of the ends of the first comb teeth 12 and the second comb teeth 22 is 30°-40°. After the first comb teeth 12 and the second comb teeth 22 are inclined, they have a certain compressive elastic deformation in the direction perpendicular to the ends of the first comb teeth 12. After the ends of the first comb teeth 12, the ends of the second comb teeth 22 and the interface material 3 are assembled, the inclination angle of the contact surface between the first comb teeth 12 and the interface material 3 is 40°-50°, and the inclination angle of the contact surface between the second comb teeth 22 and the interface material 3 is 40°-50°. Specifically, as in the present embodiment, the inclination angle between the end of the first comb-shaped teeth 12 and the end of the second comb-shaped teeth 22 is 35°. When the end of the first comb-shaped teeth 12 and the end of the second comb-shaped teeth 22 are assembled with the interface material 3, the first comb-shaped teeth 12 and the second comb-shaped teeth 22 are squeezed against each other in a direction perpendicular to the end of the first comb-shaped teeth 12. When the two are squeezed, an ideal force angle of 45° is formed on both sides, which can form a relatively stable mutual squeezing force, so that a stable state is formed during squeezing.
[0053] The distance between adjacent first comb teeth 12 is 2-3 times the thickness of the first comb teeth 12, and the distance between adjacent second comb teeth 22 is 2-3 times the thickness of the second comb teeth 22. To ensure the heat dissipation gap, and because the first comb teeth 12 and the second comb teeth 22 are inclined, the teeth on the edge may interfere with the box, and need to be removed when in use, which brings inconvenience.
[0054] In this embodiment, the interface material 3 is a thermally conductive pad or a thermally conductive gel, and the thickness of the interface material 3 is 0.1-0.5 mm. The deformation amount can be between 30% and 50% of the thickness of the interface material 3 itself. The use of the interface material 3, on the one hand, strengthens the structural stability between each other, and on the other hand, enhances the mutual heat transfer ability of the two heat sinks.
[0055] The first comb teeth 12 and the second comb teeth 22 on the outermost sides of the first radiator 1 and the second radiator 2 may interfere with the housing and need to be removed during use to avoid inconvenience.
[0056] In this embodiment, the first heat sink 1 and the second heat sink 2 are symmetrically designed, the first comb teeth 12 and the second comb teeth 22 are pressed against each other in the up and down directions, and the front end of the heat sink teeth has a certain inclination angle, so that a mutual oblique pressing force is generated, and the interface material 3 between the first comb teeth 12 and the second comb teeth 22 produces a certain amount of deformation, which on the one hand strengthens the structural stability between each other, and on the other hand enhances the mutual heat transfer capacity of the two heat sinks. In the present invention, the first heat sink 1 and the second heat sink 2 can be designed to be symmetrically embraced, and then the interface material 3 is added in the middle to strengthen the heat transfer, and the heat sink teeth on each side can be fully utilized for heat dissipation, and when the module on one side of the heat sink is working and the module on the other side of the heat sink is not working, the heat generated by the working module can be conducted to the heat sink on the other side through the interface material 3 to achieve heat dissipation, and there is no need to use the existing welding method, so the assembly process is simple, and the pressing force of the first comb teeth 12 and the second comb teeth 22 ensures stability and achieves heat conduction.
[0057] Since there are mature welding processes or tooth-slotting processes in the industry (the tooth-slotting process has poor thermal conductivity and cannot resist vibration and shock), technical personnel in this field will naturally think of these two mature solutions, and usually the teeth of the radiator are usually straight teeth, and the oblique teeth themselves are rarely used. Therefore, this embodiment breaks the traditional inherent thinking and sets the first comb teeth 12 and the second comb teeth 22 to be inclined, which just creatively forms the mutual oblique extrusion force between the top ends of the oblique teeth. The extrusion force is both stable and a necessary condition for enhancing heat transfer. At the same time, it cleverly solves the various problems of heat dissipation, cost, weight, volume, process, and reliability mentioned in this embodiment, taking into account thermal conductivity, simple assembly, and meeting the use requirements of limited space. At the same time, a fan with a smaller air volume can be selected to reduce system noise and reduce the cost of the power supply system.
[0058] Embodiment 2:
[0059] like Figure 6 , Figure 7 As shown, this embodiment is based on the first embodiment. In this embodiment, the end side of the first comb-like tooth 12 protrudes outward to form a first protrusion 13, and the first protrusion 13 forms an angle with the end of the first comb-like tooth 12; the end side of the second comb-like tooth 22 protrudes outward to form a second protrusion 23, and the second protrusion 23 forms an angle with the end of the second comb-like tooth 22; the first protrusion 13 abuts against the bottom surface of the second comb-like tooth 22, and the second protrusion 23 abuts against the bottom surface of the first comb-like tooth 12, forming a mosaic shape between the first comb tooth 12 and the second comb tooth 22.
[0060] The distance between the first protrusion 13 and the bottom surface of the first comb-shaped teeth 12 is greater than the length of the interface material 3 , and the distance between the second protrusion 23 and the bottom surface of the second comb-shaped teeth 22 is greater than the length of the interface material 3 .
[0061] The design of the first protrusion 13 and the second protrusion 23 enhances the processability and long-term reliability, facilitates the installation of the interface material 3 and ensures that the interface material 3 is not easy to fall off during long-term use, and enhances the heat transfer between the first comb teeth 12 and the second comb teeth 22 due to the increased contact area.
[0062] Preferably, the surface of the first comb-shaped teeth 12 and the interface material 3 includes a plurality of convex points, and the surface of the second comb-shaped teeth 22 and the interface material 3 includes a plurality of convex points. The design of the convex points can improve the friction of the contact between the first comb-shaped teeth 12 and the interface material 3, further ensure the stability of the interface material 3, and the convex points can be squeezed into the interface material 3, thereby increasing the contact area and strengthening the heat transfer between the first comb-shaped teeth 12 and the second comb-shaped teeth 22.
[0063] In this embodiment, a helical tooth heat sink can be formed by using a profile or a shoveling process. The profile process can design the heat sink tooth forming channel into a slightly curved heat sink tooth in the first embodiment, or a convex heat sink tooth in the second embodiment, usually made of 6063 material. The shoveling process can shovel the heat sink tooth and then push the shoveling blade forward a little distance, so that the heat sink tooth can produce a slightly curved heat sink tooth in the first embodiment, usually made of 1060 or 1070 material.
[0064] Embodiment three:
[0065] like Figure 8 As shown, the power supply system includes a box body 4, a double-hugging radiator and a plurality of modules 5 located inside the box body 4, at least two modules 5 are connected to the mounting portion of the first radiator 1, and at least two modules 5 are connected to the mounting portion of the second radiator 2.
[0066] The use of this embodiment can replace the high cost and development cycle caused by the brazing of two heat sinks in the existing design. Compared with the solution of two separate heat sinks, it greatly improves the heat dissipation effect and saves design space, thereby reducing product weight and volume. At the same time, a low-power fan can be selected to reduce system noise.
[0067] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. The radiator is characterized by: It includes a first heat sink, a second heat sink, and an interface material; The first heat sink comprises a first mounting portion and a plurality of first comb teeth, wherein the plurality of first comb teeth are inclined in the same direction; the second heat sink comprises a second mounting portion and a plurality of second comb teeth, wherein the plurality of second comb teeth are inclined in the same direction; the first comb teeth and the second comb teeth are inclined in opposite directions; The ends of the first comb-shaped teeth and the ends of the second comb-shaped teeth are pressed against each other and connected through an interface material.
2. The radiator according to claim 1, characterized in that: The inclination angles of the ends of the first comb teeth and the second comb teeth are 30°-40°.
3. The radiator according to claim 1, characterized in that: The first comb teeth and the second comb teeth are in an arc-shaped structure.
4. The radiator according to claim 1, characterized in that: The distance between adjacent first comb teeth is 2-3 times the thickness of the first comb teeth, and the distance between adjacent second comb teeth is 2-3 times the thickness of the second comb teeth.
5. The double-hugging radiator according to claim 1, characterized in that: The end side of the first comb-like teeth protrudes outward to form a first protrusion, and the first protrusion forms an angle with the end of the first comb-like teeth; the end side of the second comb-like teeth protrudes outward to form a second protrusion, and the second protrusion forms an angle with the end of the second comb-like teeth; the first protrusion abuts against the bottom surface of the second comb-like teeth, and the second protrusion abuts against the bottom surface of the first comb-like teeth, forming a mosaic shape between the first comb-like teeth and the second comb-like teeth.
6. The double-hugging radiator according to claim 5, characterized in that: The distance between the first protrusion and the bottom surface of the first comb-shaped teeth is greater than the length of the interface material, and the distance between the second protrusion and the bottom surface of the second comb-shaped teeth is greater than the length of the interface material.
7. The double-hugging radiator according to claim 1, characterized in that: The surface of the first comb-shaped teeth and the interface material includes a plurality of convex points, and the surface of the second comb-shaped teeth and the interface material includes a plurality of convex points.
8. The double-hugging radiator according to claim 1, characterized in that: After the ends of the first comb teeth and the second comb teeth and the interface material are assembled, the inclination angle of the contact surface between the first comb teeth and the interface material is 40°-50°, and the inclination angle of the contact surface between the second comb teeth and the interface material is 40°-50°.
9. The double-hugging radiator according to claim 1, characterized in that: The interface material is a thermally conductive pad or a thermally conductive gel, and the thickness of the interface material is 0.1-0.5 mm.
10. A power supply system, characterized in that It comprises a box body, a double-hugging radiator according to any one of claims 1 to 9 and a plurality of modules located inside the box body, at least two modules are connected to the mounting portion of the first radiator, and at least two modules are connected to the mounting portion of the second radiator.