Metal matrix composite multilayer heat sink structure
By using a multi-layer heat dissipation structure made of metal matrix composite materials, and taking advantage of the high thermal conductivity of foamed copper, carbon fiber and diamond materials, combined with a threaded connection method, the problem of low heat dissipation efficiency of high-power electronic devices is solved, achieving efficient heat dissipation and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN DONGHAO INTELLIGENT INNOVATION TECHNOLOGY CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-23
AI Technical Summary
Existing heat dissipation structures are inefficient when dealing with high-power electronic devices, leading to a decline in the performance of these devices.
The system employs a multi-layer heat dissipation structure made of metal matrix composite materials, including a heat dissipation fin layer, an intermediate heat-conducting layer, and a heat source contact layer. It utilizes the high thermal conductivity of foamed copper, carbon fiber, and diamond materials, combined with a threaded connection method, to achieve rapid heat dissipation and convenient assembly.
It improves heat dissipation efficiency, solves the heat dissipation problem of high-power electronic devices, and facilitates the individual replacement of heat dissipation fin layers, reducing maintenance costs.
Smart Images
Figure CN224401904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat dissipation structure technology, and in particular to a multilayer heat dissipation structure of metal matrix composite material. Background Technology
[0002] A heat dissipation structure is a system that dissipates the heat generated during the operation of electronic devices and mechanical devices in a timely manner. Utilizing the principles of heat conduction and convection, it efficiently transfers heat from the heat source to the external environment. The heat dissipation structure can effectively control the temperature of the equipment, avoid performance degradation due to overheating, thereby ensuring stable operation of the equipment, improving reliability and safety, and providing a strong guarantee for high-performance equipment to achieve its best performance.
[0003] As electronic devices continue to develop, their performance becomes stronger and their power increases, resulting in more and more heat being generated. This heat needs to be dissipated in a timely and effective manner. Existing heat dissipation structures have low heat dissipation efficiency when dealing with high-power electronic devices, leading to a decline in the performance of these devices. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a multi-layer heat dissipation structure of metal matrix composite material, which aims to improve the problem of low heat dissipation efficiency of heat dissipation structure when facing high-power electronic devices, resulting in the degradation of electronic device performance.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer heat dissipation structure of metal matrix composite material, comprising a multi-layer component, wherein the multi-layer component includes a heat dissipation fin layer, an intermediate heat-conducting layer is fixedly connected to the bottom of the heat dissipation fin layer, the intermediate heat-conducting layer is fixedly connected to two second connecting members, a heat source contact layer is fixedly connected to the bottom of the intermediate heat-conducting layer, the heat dissipation fin layer is a metal matrix composite material of foamed copper, the intermediate heat-conducting layer is a metal matrix composite material of carbon fiber, the heat source contact layer is a metal matrix composite material of diamond, two fixing members are provided at the bottom of the heat dissipation fin layer, and two connecting members are provided at the bottom of the heat source contact layer.
[0006] Preferably, both of the fixing components include a first connector, the two first connectors are fixedly connected to the heat dissipation fin layer, two first bolts are threaded inside each of the two first connectors, two second connectors are threaded on the surface of each of the four first bolts, and a limit component is provided on the top of each of the two second connectors.
[0007] Preferably, both of the connecting components include a connecting block, both connecting blocks are fixedly connected to the heat source contact layer, and both connecting blocks are internally threaded with a second bolt.
[0008] Preferably, both limiting components include control covers, both control covers are fixedly connected to two second connecting members, both control covers have second limiting members slidably connected to their inner walls, both second limiting members have first limiting members at their bottoms, both first limiting members are fixedly connected to two first connecting members, and both control covers have two reset components on adjacent sides.
[0009] Preferably, the two first connectors are elongated strips, and the two second connectors are stepped elongated strips, with the steps of the two second connectors having inclined surfaces.
[0010] Preferably, each of the four reset components includes a slider, each of the four sliders is fixedly connected to the two control covers, each of the four sliders is slidably connected to the two second limiting members, and two reset members are fixedly connected to the opposite side of each of the two second limiting members. Each of the four reset members is fixedly connected to the two control covers.
[0011] Preferably, the two first limiting members are triangular strips, the two second limiting members are triangular strips, and the two second limiting members are centrally symmetrical with the two first limiting members.
[0012] Preferably, the four sliding members are cylindrical, and each of the four sliding members has a locking head on an adjacent side, and the four reset members are springs.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, the heat dissipation fin layer increases the heat dissipation area and accelerates heat dissipation by utilizing air convection. The middle heat-conducting layer can quickly conduct the heat transferred from the heat source contact layer to the surroundings, further improving the heat dissipation speed. The heat source contact layer directly contacts the heat source and efficiently absorbs heat. The three layers work together to solve the problem of low heat dissipation efficiency of heat dissipation structure when facing high-power electronic devices, which leads to the degradation of electronic device performance.
[0015] 2. In this utility model, the threaded connection of two first connecting parts, a second connecting part, and a first bolt makes the assembly and disassembly of the entire heat dissipation structure convenient. When the heat dissipation fin layer is damaged or needs to be replaced separately, the first bolt can be unscrewed to replace the heat dissipation fin layer, thus solving the problem of high maintenance costs caused by the inability to replace the heating fins separately. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of a multilayer heat dissipation structure of a metal matrix composite material proposed in this utility model;
[0017] Figure 2This is a schematic diagram of the heat dissipation fin layer of a multi-layer heat dissipation structure of a metal matrix composite material proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the first limiting component of a multilayer heat dissipation structure made of metal matrix composite material proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the connecting block of a multi-layer heat dissipation structure of a metal matrix composite material proposed in this utility model.
[0020] Legend:
[0021] 1. Fixing assembly; 101. First connector; 102. Second connector; 103. First bolt; 2. Limiting assembly; 201. First limiting member; 202. Second limiting member; 203. Control cover; 3. Reset assembly; 301. Sliding member; 302. Reset member; 4. Multilayer assembly; 401. Heat dissipation fin layer; 402. Intermediate heat-conducting layer; 403. Heat source contact layer; 5. Connecting assembly; 501. Connecting block; 502. Second bolt. Detailed Implementation
[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] Reference Figure 1 and Figure 2 The present invention provides an embodiment of a multi-layer heat dissipation structure of a metal matrix composite material, comprising a multi-layer component 4, wherein the multi-layer component 4 includes a heat dissipation fin layer 401, an intermediate heat-conducting layer 402 is fixedly connected to the bottom of the heat dissipation fin layer 401, the intermediate heat-conducting layer 402 is fixedly connected to two second connecting members 102, and a heat source contact layer 403 is fixedly connected to the bottom of the intermediate heat-conducting layer 402. The heat dissipation fin layer 401 is a metal matrix composite material of foamed copper, the intermediate heat-conducting layer 402 is a metal matrix composite material of carbon fiber, and the heat source contact layer 403 is a metal matrix composite material of diamond. Two fixing components 1 are provided at the bottom of the heat dissipation fin layer 401, and two connecting components 5 are provided at the bottom of the heat source contact layer 403.
[0024] Specifically, the heat dissipation fin layer 401 is made of a metal-based composite material of foamed copper. Its unique foam structure greatly increases the heat dissipation surface area. Foamed copper itself has good thermal conductivity, which can transfer the heat from the middle heat conduction layer 402 to various parts of the fins. Air can flow in the pores and surface of the fins, and dissipate the heat to the surrounding environment through air convection, thereby improving the heat dissipation efficiency.
[0025] The intermediate thermal conductive layer 402 is made of a metal matrix composite material of carbon fiber, which has good thermal conductivity and can conduct the heat transferred from the heat source contact layer 403 along the fiber direction, so that the heat is evenly distributed in the transverse direction of the heat source contact layer 403, avoiding local overheating, providing a uniform heat source for the heat dissipation fin layer 401, and further optimizing the heat dissipation effect.
[0026] The heat source contact layer 403 is made of a diamond-based metal matrix composite material. Utilizing the high thermal conductivity of diamond, it can efficiently absorb the heat generated by the heat source and transfer the heat to the intermediate heat-conducting layer 402 in a timely manner.
[0027] Reference Figure 2 and Figure 3 Both fixing components 1 include a first connector 101. The two first connectors 101 are fixedly connected to the heat dissipation fin layer 401. The two first connectors 101 are threaded with two first bolts 103 inside. The surfaces of the four first bolts 103 are threaded with two second connectors 102. The top of the two second connectors 102 is provided with a limit component 2.
[0028] Specifically, the two first connectors 101 are elongated strips. This shape design provides a large connection contact area for the heat dissipation fin layer 401 and the intermediate heat conduction layer 402, ensuring that the heat dissipation fin layer 401 and the intermediate heat conduction layer 402 can be stably connected during operation and will not easily shake or shift due to external forces. The first connectors 101 are welded to the heat dissipation fin layer 401, so that the first connectors 101 can be firmly attached to the heat dissipation fin layer 401.
[0029] The first connector 101 has two threaded holes machined inside. These threaded holes are precisely matched with the first bolt 103. The threaded connection method has the advantages of strong connection and easy disassembly. By rotating the first bolt 103, the first connector 101 and the second connector 102 can be quickly connected or separated, which provides convenience for the replacement of the heat dissipation fin layer 401.
[0030] One end of each of the four first bolts 103 is screwed into the threaded hole inside the first connector 101, and the other end is engaged with the corresponding threaded structure on the second connector 102. This double threaded connection enhances the connection strength between the first connector 101 and the second connector 102.
[0031] Reference Figure 4 Both connecting components 5 include connecting blocks 501, both connecting blocks 501 are fixedly connected to the heat source contact layer 403, and both connecting blocks 501 are threaded with second bolts 502 inside.
[0032] Specifically, the two connecting blocks 501 are connected to the heat source contact layer 403 by welding. This connection method ensures that the connecting blocks 501 and the heat source contact layer 403 can be firmly connected. The second bolt 502 is threaded inside the connecting block 501. Its function is to firmly and tightly fix the connecting block 501 to the external heat source.
[0033] By rotating the second bolt 502, it is gradually screwed into the corresponding threaded hole on the external heat source. As the bolt is tightened, the contact pressure between the heat source contact layer 403 and the heat source gradually increases, thereby ensuring close contact between the two, reducing thermal resistance, and enabling heat to be efficiently transferred from the heat source to the heat source contact layer 403.
[0034] Reference Figure 2 and Figure 3 Both limiting components 2 include control covers 203. Both control covers 203 are fixedly connected to two second connecting members 102. The inner walls of both control covers 203 are slidably connected with second limiting members 202. The bottom of both second limiting members 202 is provided with first limiting members 201. Both first limiting members 201 are fixedly connected to two first connecting members 101. Two reset components 3 are provided on adjacent sides of both control covers 203.
[0035] Specifically, the inner wall of the control cover 203 provides a sliding track for the second limiting member 202, so that the second limiting member 202 can slide in a specific direction inside it to ensure the accuracy of its movement trajectory. When the first limiting member 201 contacts the inclined surface of the second limiting member 202, it can squeeze the second limiting member 202.
[0036] When the second limiting member 202 is above the first limiting member 201, the second limiting member 202 can limit the first limiting member 201. When the first limiting member 201 is limited, the position of the heat dissipation fin layer 401 in the vertical direction is fixed.
[0037] Reference Figure 2 and Figure 3 The two first connectors 101 are elongated strips, and the two second connectors 102 are stepped elongated strips, with the steps of the two second connectors 102 having inclined surfaces.
[0038] Specifically, the first connector 101 and the second connector 102 are elongated strips. This shape makes it easier to position the connection between the heat dissipation fin layer 401 and the intermediate heat-conducting layer 402. The stepped length and sloping design of the second connector 102 allow the first limiting member 201 to be inserted between the second limiting member 202 and the second connector 102.
[0039] Reference Figure 2 and Figure 3 Each of the four reset components 3 includes a slider 301. Each of the four sliders 301 is fixedly connected to the two control covers 203. Each of the four sliders 301 is slidably connected to the two second limiters 202. Each of the two second limiters 202 has two reset components 302 fixedly connected to the opposite side. Each of the four reset components 302 is fixedly connected to the two control covers 203.
[0040] Specifically, the control cover 203 provides fixed support for the sliding member 301, the sliding member 301 provides motion guidance for the second limiting member 202, and the reset member 302 provides reset conditions for the second limiting member 202.
[0041] Reference Figure 2 and Figure 3 The two first limiting members 201 are triangular strips, the two second limiting members 202 are triangular strips, and the two second limiting members 202 are centrally symmetrical with the two first limiting members 201.
[0042] Specifically, the triangular elongated design makes the contact surface of the first limiting member 201 and the second limiting member 202 larger, which can achieve more stable limiting. The two second limiting members 202 are centrally symmetrically distributed with the two first limiting members 201, so that when the first limiting member 201 moves to the bottom of the second limiting member 202, the second limiting member 202 resets and locks the first limiting member 201.
[0043] Reference Figure 2 and Figure 3 The four sliding parts 301 are cylindrical, and each of the four sliding parts 301 has a locking head on an adjacent side. The four reset parts 302 are springs.
[0044] Specifically, the locking head of the slider 301 is used to limit the second limiting member 202. The slider 301 is cylindrical, which provides a guide for the movement of the second limiting member 202, so that the second limiting member 202 can only move along the axial direction of the slider 301, thereby ensuring that the movement trajectory of the second limiting member 202 in the control cover 203 is accurate and controllable.
[0045] The reset component 302 is a spring, and its two ends are fixedly connected to the control cover 203 and the second limiting component 202 respectively. When the second limiting component 202 is moved by an external force, the spring will be compressed synchronously. In this process, the spring stores elastic potential energy.
[0046] Once the external force disappears, the spring will release the stored elastic potential energy by relying on its own elastic restoring force, pushing the second limiting member 202 to reset along the guide direction of the sliding member 301, and once again realizing the limiting function of the heat dissipation fin layer 401.
[0047] Working principle: When efficient heat dissipation is required, the heat source contact layer 403 is in direct contact with the heat source. The heat source contact layer 403 is made of diamond metal matrix composite material, which has extremely high thermal conductivity. When the heat source generates heat, the heat source contact layer 403 can efficiently absorb heat and transfer it to the intermediate heat-conducting layer 402.
[0048] The intermediate thermal conductive layer 402 is a metal matrix composite material made of carbon fiber, which has good thermal conductivity and can quickly conduct heat along the fiber direction. The heat that is evenly distributed through the intermediate thermal conductive layer 402 will eventually be transferred to the heat dissipation fin layer 401.
[0049] The heat dissipation fin layer 401 is made of a metal matrix composite material of foamed copper. Its foam-like structure increases the heat dissipation surface area. The good thermal conductivity of foamed copper itself allows heat to be quickly transferred to all parts of the fins. Air can flow in the pores and surface of the fins, and the heat is continuously carried away and dissipated into the surrounding environment through air convection.
[0050] The heat source contact layer 403, the intermediate heat-conducting layer 402 and the heat dissipation fin layer 401 work together to absorb, conduct and dissipate heat in sequence, solving the problem of low heat dissipation efficiency of heat dissipation structure when facing high-power electronic devices, which leads to the degradation of electronic device performance.
[0051] When the heat sink fins need to be replaced individually, unscrew the first bolt 103. At this time, the first connector 101 and the second connector 102 can be separated, and the second limiting member 202 is squeezed. When the second limiting member 202 no longer contacts the first limiting member 201, the second limiting member 202 is no longer limited.
[0052] Since the first limiting member 201 is connected to the first connecting member 101, and the first connecting member 101 is connected to the heat dissipation fin layer 401, the heat dissipation fin layer 401 can be removed at this time. When replacing the heat dissipation fins, the first limiting member 201 and the second limiting member 202 should be aligned at an angle and the first limiting member 201 should be moved downward. At this time, the first limiting member 201 will squeeze the second limiting member 202, thereby compressing the reset member 302.
[0053] When the inclined surfaces of the first limiting member 201 and the second limiting member 202 miss each other, the reset member 302 releases elastic potential energy to drive the second limiting member 202 to reset and lock the first limiting member 201 to achieve initial positioning. At this time, the first bolt 103 is tightened to achieve a tight connection between the first connecting member 101 and the second connecting member 102, thereby fixing the heat dissipation fin layer 401 and solving the problem of high maintenance costs caused by the inability to replace the heating fins individually.
[0054] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multilayer heat dissipation structure of a metal matrix composite material, comprising a multilayer component (4), characterized in that: The multi-layer component (4) includes a heat dissipation fin layer (401), a middle heat-conducting layer (402) is fixedly connected to the bottom of the heat dissipation fin layer (401), the middle heat-conducting layer (402) is fixedly connected to two second connectors (102), a heat source contact layer (403) is fixedly connected to the bottom of the middle heat-conducting layer (402), the heat dissipation fin layer (401) is a metal-based composite material of foamed copper, the middle heat-conducting layer (402) is a metal-based composite material of carbon fiber, the heat source contact layer (403) is a metal-based composite material of diamond, two fixing components (1) are provided at the bottom of the heat dissipation fin layer (401), and two connecting components (5) are provided at the bottom of the heat source contact layer (403).
2. The multilayer heat dissipation structure of a metal matrix composite material according to claim 1, characterized in that: Both of the fixing components (1) include a first connector (101), and the two first connectors (101) are fixedly connected to the heat dissipation fin layer (401). The two first connectors (101) are threaded with two first bolts (103) inside, and the four first bolts (103) are threaded with two second connectors (102) on their surfaces. The top of the two second connectors (102) is provided with a limit component (2).
3. The multilayer heat dissipation structure of a metal matrix composite material according to claim 1, characterized in that: Both of the connecting components (5) include a connecting block (501), both of the connecting blocks (501) are fixedly connected to the heat source contact layer (403), and both of the connecting blocks (501) are threaded with a second bolt (502).
4. The multilayer heat dissipation structure of a metal matrix composite material according to claim 2, characterized in that: Both of the limiting components (2) include a control cover (203), both of the control covers (203) are fixedly connected to two second connecting members (102), the inner walls of both control covers (203) are slidably connected with second limiting members (202), the bottom of both second limiting members (202) is provided with first limiting members (201), both first limiting members (201) are fixedly connected to two first connecting members (101), and two reset components (3) are provided on adjacent sides of both control covers (203).
5. The multilayer heat dissipation structure of a metal matrix composite material according to claim 2, characterized in that: The two first connectors (101) are elongated strips, and the two second connectors (102) are stepped elongated strips, with the steps of the two second connectors (102) having inclined surfaces.
6. The multilayer heat dissipation structure of a metal matrix composite material according to claim 4, characterized in that: Each of the four reset components (3) includes a slider (301), which is fixedly connected to the two control covers (203). Each of the four sliders (301) is slidably connected to the two second limiters (202). Two reset components (302) are fixedly connected to the opposite side of each of the two second limiters (202). Each of the four reset components (302) is fixedly connected to the two control covers (203).
7. The multilayer heat dissipation structure of a metal matrix composite material according to claim 4, characterized in that: The two first limiting members (201) are triangular strips, the two second limiting members (202) are triangular strips, and the two second limiting members (202) are centrally symmetrical with the two first limiting members (201).
8. The multilayer heat dissipation structure of a metal matrix composite material according to claim 6, characterized in that: The four sliding members (301) are cylindrical, and each of the four sliding members (301) has a locking head on an adjacent side. The four reset members (302) are springs.