A phase change graphite composite heat spreader

Abstract

The utility model relates to communication technical field, and disclose a kind of phase-change graphite composite radiator, including lower shell and the upper shell of lower shell top end setting, the one side of lower shell close to upper shell is equipped with mounting slot, the inner wall of mounting slot is fixedly installed with locating block one and locating block two.The phase-change graphite composite radiator, by the cooperation of plug block and slot and stop block, the quick positioning of graphite sheet one and graphite sheet two can be realized, without complex calibration operation, it can ensure that the relative position of phase-change material and graphite sheet one and graphite sheet two is accurate, improves installation efficiency, reduces artificial cost and time cost, higher practicality, by the cooperation of graphite sheet one, graphite sheet two and phase-change material, the heat emitted by environment is absorbed and stored, the heat emitted when equipment is started is absorbed, internal heat comes down when equipment is stopped, phase-change material releases heat, so circulate repeatedly, reach the purpose of heat reduction, and the heat dissipation efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, specifically to a phase change graphite composite heat sink. Background Technology

[0002] The phase change graphite composite heat sink is a novel heat dissipation device consisting of an upper shell and a lower shell. The lower shell contains a heat-conducting cavity and a heat-dissipating cavity. A thin graphite sheet is placed inside the heat-conducting cavity, and the heat-dissipating cavity is filled with a phase change material. During operation, the thin graphite sheet rapidly conducts heat, transferring it to the phase change material, and the temperature is controlled by utilizing the phase change endothermic properties of the phase change material. It effectively solves the temperature control problem of high heat flux density electronic components in confined spaces for short periods and can be applied to high-performance computers, communication base stations, and other equipment.

[0003] Chinese Invention Patent Publication No. CN119342778B discloses a graphite homogeneous temperature composite phase change energy storage radiator. The specification of this radiator reveals that it utilizes thin graphite sheets with high thermal conductivity for rapid heat conduction, transferring heat from the heat source inwards along a plane. Most of the heat is transferred to the phase change material via the thin graphite sheets, where it absorbs heat through a phase change. The remaining heat is transferred to the aluminum alloy structural components of the radiator, reducing the temperature difference within the components and fully utilizing their heat capacity for heat dissipation. This combination of high thermal conductivity and phase change heat absorption allows for rapid heat transfer to the phase change material, improving heat dissipation and achieving rapid cooling. However, this graphite homogeneous temperature composite phase change energy storage radiator lacks a rapid positioning structure for the graphite sheets, making quick alignment difficult during installation and resulting in low installation efficiency. Furthermore, the radiator relies solely on a single layer of graphite sheets for heat conduction, leading to low thermal efficiency and poor practicality, hindering its widespread adoption. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a phase change graphite composite heat sink, which can effectively solve the problems of existing technologies that do not have a quick positioning structure for graphite sheets, making it difficult to quickly align during installation, resulting in low installation efficiency, and relying solely on a single layer of graphite sheets for heat conduction, resulting in low heat conduction efficiency, poor practicality, and inconvenience for widespread use.

[0005] The technical solution adopted by this utility model is: a phase change graphite composite heat sink, including a lower shell and an upper shell disposed at the top of the lower shell. The lower shell has an installation groove on the side near the upper shell. Positioning block one and positioning block two are fixedly installed on the inner wall of the installation groove. A phase change material is disposed on the side of the lower shell near the upper shell. Positioning groove one and positioning groove two are disposed along the edge of the phase change material. Insertion block and stop block are fixedly installed on the outer wall of the phase change material. Graphite sheet one and graphite sheet two are disposed on the outer wall of the phase change material. Slots are disposed on the outer walls of graphite sheet one and graphite sheet two.

[0006] Preferably, both the lower housing and the upper housing are made of aluminum alloy, and the lower housing and the upper housing are compatible with each other.

[0007] The above technical solutions, using aluminum alloy materials to make the lower and upper shells, have the characteristics of being lightweight, having good thermal conductivity, high heat dissipation efficiency, and strong corrosion resistance, and the material cost is relatively low, making them highly practical.

[0008] Preferably, the phase change material is adapted to the mounting groove, the first positioning block is adapted to the first positioning groove, and the second positioning block is adapted to the second positioning groove.

[0009] Using the above technical solution, workers insert the phase change material into the installation slot, insert positioning block one into positioning slot one, and positioning block two into positioning slot two. This allows for the rapid installation of the phase change material and prevents it from shifting during use, thus avoiding impact on the overall heat dissipation performance. This method is highly practical.

[0010] Preferably, the insert and the slot are plugged in, the cross-section of the stop block is L-shaped, four identical stop blocks are provided, the four stop blocks are symmetrically distributed about the center line of the graphite sheet, and the four stop blocks form a guide groove.

[0011] Using the above technical solution, workers insert graphite sheet one into the guide groove formed by four blocks, and simultaneously insert the insert block into the slot. This allows for rapid positioning of graphite sheet one, as well as graphite sheet two, avoiding misalignment when pasting graphite sheet one and graphite sheet two. Without the need for complex calibration operations, the relative positions of the phase change material and graphite sheet one and graphite sheet two can be ensured to be accurate, improving installation efficiency, reducing labor and time costs, and demonstrating high practicality.

[0012] Preferably, the graphite sheet one and graphite sheet two have the same structure, and the thickness of the graphite sheet one is 0.2mm to 0.5mm.

[0013] The above technical solution, with the graphite sheet thickness of 0.2mm to 0.5mm, effectively saves the space required for installation, while also ensuring heat dissipation performance and saving costs, making it highly practical.

[0014] Preferably, the first graphite sheet is located at the top of the phase change material, and the second graphite sheet is located at the bottom of the phase change material.

[0015] The above technical solution uses graphite sheet one, graphite sheet two and phase change material to absorb and store the heat emitted by the environment. The heat emitted when the equipment is turned on is absorbed, and when the equipment is turned off, the internal heat decreases and the phase change material releases heat. This cycle repeats to achieve the purpose of cooling and has high heat dissipation efficiency.

[0016] Preferably, there are multiple identical graphite sheets, and the multiple graphite sheets are distributed at equal intervals.

[0017] The above technical solution, through the design of multiple graphite sheets, further improves the overall heat dissipation efficiency and has high practicality.

[0018] Compared with the prior art, this utility model provides a phase change graphite composite heat sink, which has the following beneficial effects:

[0019] This phase change graphite composite heat sink, through the cooperation of inserts, slots, and blocks, enables rapid positioning of graphite sheet one and graphite sheet two, avoiding misalignment during the pasting of graphite sheet one and graphite sheet two. It eliminates the need for complex calibration operations, ensuring accurate relative positioning of the phase change material with graphite sheet one and graphite sheet two, improving installation efficiency, reducing labor and time costs, and demonstrating high practicality. The design of graphite sheet one with a thickness of 0.2mm to 0.5mm effectively saves installation space while maintaining heat dissipation performance and cost savings, further enhancing its practicality.

[0020] This phase change graphite composite radiator absorbs and stores heat emitted from the environment through the combination of graphite sheet one, graphite sheet two, and phase change material. When the equipment is turned on, the heat emitted is absorbed; when the equipment is turned off, the internal heat dissipates, and the phase change material releases heat. This cycle repeats repeatedly to achieve heat dissipation, resulting in high heat dissipation efficiency. The design of multiple graphite sheets further improves the overall heat dissipation efficiency, making it highly practical. Furthermore, the phase change graphite composite radiator uses aluminum alloy for its lower and upper shells, which are lightweight, have good thermal conductivity, high heat dissipation efficiency, and strong corrosion resistance. The material cost is relatively low, further enhancing its practicality. The cooperation of positioning block one with positioning groove one and positioning block two with positioning groove two allows for rapid installation of the phase change material, preventing displacement of the phase change material during use and ensuring overall heat dissipation performance. This also contributes to its high practicality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the phase change material installation structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the mounting structure of graphite sheet one and graphite sheet two of this utility model. Figure 1 ;

[0025] Figure 5This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0026] Figure 6 This is a schematic diagram of the block installation structure of this utility model;

[0027] Figure 7 This is a schematic diagram of the mounting structure of graphite sheet one and graphite sheet two of this utility model. Figure 2 .

[0028] The components are: 1. Lower housing; 2. Upper housing; 3. Mounting groove; 4. Positioning block one; 5. Positioning block two; 6. Phase change material; 7. Positioning groove one; 8. Positioning groove two; 9. Insert block; 10. Stop block; 11. Graphite sheet one; 12. Graphite sheet two; 13. Slot. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1:

[0031] like Figure 1-7 As shown, the present invention provides a phase change graphite composite heat sink, including a lower shell 1 and an upper shell 2 disposed at the top of the lower shell 1. A mounting groove 3 is provided on the side of the lower shell 1 near the upper shell 2. A positioning block 4 and a positioning block 5 are fixedly installed on the inner wall of the mounting groove 3. A phase change material 6 is disposed on the side of the lower shell 1 near the upper shell 2. A positioning groove 7 and a positioning groove 8 are provided along the edge of the phase change material 6. An insert block 9 and a stop block 10 are fixedly installed on the outer wall of the phase change material 6. Graphite sheet 11 and graphite sheet 2 12 are disposed on the outer wall of the phase change material 6. A slot 13 is provided on the outer wall of both graphite sheet 11 and graphite sheet 2 12.

[0032] Specifically, both the lower housing 1 and the upper housing 2 are made of aluminum alloy, and the lower housing 1 and the upper housing 2 are compatible. The advantages are that the lower housing 1 and the upper housing 2 made of aluminum alloy are lightweight, have good thermal conductivity, high heat dissipation efficiency, and strong corrosion resistance, and the material cost is relatively low, making them highly practical.

[0033] Specifically, the phase change material 6 is adapted to the mounting slot 3, the first positioning block 4 is adapted to the first positioning slot 7, and the second positioning block 5 is adapted to the second positioning slot 8. The advantage is that by inserting the phase change material 6 into the mounting slot 3, simultaneously inserting the first positioning block 4 into the first positioning slot 7, and the second positioning block 5 into the second positioning slot 8, the phase change material 6 can be quickly installed. During use, it prevents the phase change material 6 from shifting, thus avoiding impact on overall heat dissipation performance, making it highly practical.

[0034] Specifically, the insert 9 and slot 13 are plug-in installed. The cross-section of the stop 10 is L-shaped, and four identical stop 10s are arranged symmetrically about the center line of graphite sheet 11, forming a guide groove. The advantage is that when the operator inserts graphite sheet 11 into the guide groove formed by the four stop 10s and simultaneously inserts the insert 9 into the slot 13, the graphite sheet 11 and graphite sheet 2 can be quickly positioned. This avoids misalignment when pasting graphite sheet 11 and graphite sheet 2, eliminating the need for complex calibration operations and ensuring accurate relative positions of the phase change material 6 with graphite sheet 11 and graphite sheet 2, improving installation efficiency, reducing labor and time costs, and demonstrating high practicality.

[0035] Example 2:

[0036] like Figure 2-7 As shown, as an improvement on the previous embodiment, to further improve the overall heat dissipation efficiency, specifically, graphite sheet 11 is located at the top of the phase change material 6, and graphite sheet 12 is located at the bottom of the phase change material 6. The advantage is that the heat emitted by the environment is absorbed and stored through the cooperation of graphite sheet 11, graphite sheet 12, and the phase change material 6. The heat emitted when the equipment is turned on is absorbed, and when the equipment is stopped, the internal heat decreases, and the phase change material 6 releases heat. This cycle repeats repeatedly, achieving the purpose of heat reduction and resulting in high heat dissipation efficiency.

[0037] Specifically, multiple identical graphite sheets 11 are provided, and these graphite sheets 11 are distributed at equal intervals. The advantage is that the design of multiple graphite sheets 11 further improves the overall heat dissipation efficiency, making it highly practical.

[0038] Specifically, graphite sheet 11 and graphite sheet 212 have the same structure, with graphite sheet 11 having a thickness of 0.2mm to 0.5mm. The advantage is that the 0.2mm to 0.5mm thickness of graphite sheet 11 effectively saves installation space, while also ensuring heat dissipation performance and reducing costs, making it highly practical.

[0039] Working principle: During installation, the operator inserts the phase change material 6 into the installation slot 3, simultaneously inserting positioning block 4 into positioning slot 7 and positioning block 5 into positioning slot 8. This allows for rapid installation of the phase change material 6 and prevents it from shifting during use, thus ensuring overall heat dissipation performance. It is highly practical. Subsequently, the operator inserts graphite sheet 11 into the guide groove formed by four stops 10, and simultaneously inserts the insert block 9 into the slot 13. This allows for rapid positioning of graphite sheet 11 and graphite sheet 12, preventing misalignment during their application. No complex calibration is required, ensuring accurate relative positioning of the phase change material 6 with graphite sheets 11 and 12, improving installation efficiency and reducing labor costs and time. With high cost and practicality, the device absorbs and stores heat emitted from the environment through the combination of graphite sheet 11, graphite sheet 2 12, and phase change material 6. The heat emitted when the device is turned on is absorbed, and when the device is turned off, the internal heat decreases, and the phase change material 6 releases heat. This cycle repeats to achieve the purpose of cooling, resulting in high heat dissipation efficiency. The design of multiple graphite sheets 11 further improves the overall heat dissipation efficiency, making it highly practical. The design of graphite sheet 11 with a thickness of 0.2mm to 0.5mm effectively saves the space required for installation, while also taking into account heat dissipation performance and saving costs, making it highly practical. The lower shell 1 and upper shell 2, made of aluminum alloy, are lightweight, have good thermal conductivity, high heat dissipation efficiency, and strong corrosion resistance, and the material cost is relatively low, making it highly practical.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A phase change graphite composite heat sink, comprising a lower housing (1) and an upper housing (2) disposed at the top of the lower housing (1), characterized in that: The lower housing (1) has an installation groove (3) on the side near the upper housing (2). The inner wall of the installation groove (3) is fixedly installed with positioning block 1 (4) and positioning block 2 (5). The lower housing (1) is provided with phase change material (6) on the side near the upper housing (2). The phase change material (6) has positioning groove 1 (7) and positioning groove 2 (8) along its edge. The outer wall of the phase change material (6) is fixedly installed with insert block (9) and stop block (10). The outer wall of the phase change material (6) is provided with graphite sheet 1 (11) and graphite sheet 2 (12). The outer walls of graphite sheet 1 (11) and graphite sheet 2 (12) are both provided with slots (13).

2. The phase change graphite composite heat sink according to claim 1, characterized in that: The lower shell (1) and the upper shell (2) are both made of aluminum alloy and are compatible with each other.

3. The phase change graphite composite heat sink according to claim 1, characterized in that: The phase change material (6) is adapted to the mounting groove (3), the first positioning block (4) is adapted to the first positioning groove (7), and the second positioning block (5) is adapted to the second positioning groove (8).

4. The phase change graphite composite heat sink according to claim 1, characterized in that: The insert (9) and the slot (13) are plugged in and installed. The cross section of the stop (10) is "L" shaped. Four identical stop (10) are provided. The four stop (10) are symmetrically distributed about the center line of the graphite sheet (11). The four stop (10) form a guide groove.

5. A phase change graphite composite heat sink according to claim 1, characterized in that: The graphite sheet one (11) and graphite sheet two (12) have the same structure, and the thickness of the graphite sheet one (11) is 0.2mm to 0.5mm.

6. A phase change graphite composite heat sink according to claim 1, characterized in that: The first graphite sheet (11) is located at the top of the phase change material (6), and the second graphite sheet (12) is located at the bottom of the phase change material (6).

7. A phase change graphite composite heat sink according to claim 1, characterized in that: The graphite sheet (11) is provided in multiple identical forms, and the multiple graphite sheets (11) are distributed at equal intervals.

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