A composite phase change energy storage radiator of paraffin and liquid metal

Abstract

The present invention discloses a paraffin and liquid metal composite phase change energy storage radiator, which relates to the field of radiator technology, including an upper shell and a lower shell that are separately arranged, an upper heat dissipation groove is provided on the upper shell, a lower heat dissipation groove is provided on the lower shell, the upper shell is embedded and installed in the lower heat dissipation groove, a heat dissipation cavity is formed between the lower heat dissipation groove and the upper heat dissipation groove, the heat dissipation cavity forms a liquid metal filling cavity at the corresponding position of the high-power chip, and the heat dissipation cavity forms a paraffin filling cavity at the corresponding position of the low-power chip, the paraffin filling cavity and the liquid metal filling cavity are separated by an annular liquid cooling channel, and a plurality of air cooling channels are provided through the bottom of the lower shell. Low-melting-point liquid metal is combined with a traditional phase change energy storage radiator, and the high thermal conductivity of liquid metal is used to conduct the heat of the chip with high power consumption to the phase change material heat storage area more quickly, effectively solving the heat dissipation problem in scenarios such as high overall thermal capacity requirements of electronic components and the need for rapid temperature equalization of large chips.

Description

Technical Field

[0001] The invention relates to the technical field of radiators, and in particular to a paraffin and liquid metal composite phase-change energy storage radiator. Background Art

[0002] The phase change materials used in the existing traditional phase change heat sinks are mostly paraffin-based materials, which have limited latent heat absorption during phase change, low thermal conductivity, and poor temperature uniformity. If the heat dissipation is too slow for high-power chips, it is easy to cause the chip temperature to rise too quickly, and the temperature rise of the chip cannot be controlled. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a paraffin and liquid metal composite phase change energy storage radiator, which effectively solves the heat dissipation problems in scenarios such as high overall thermal capacity requirements for electronic components and the need for rapid temperature equalization of large chips.

[0004] The objective of the present invention is achieved through the following technical scheme: a paraffin and liquid metal composite phase change energy storage radiator, comprising an upper shell and a lower shell which are separately arranged, the upper shell being provided with an upper heat dissipation groove, the lower shell being provided with a lower heat dissipation groove, the upper shell being embedded and installed in the lower heat dissipation groove, a heat dissipation cavity being formed between the lower heat dissipation groove and the upper heat dissipation groove, the heat dissipation cavity forming a liquid metal filling cavity at the corresponding position of the high-power chip, the heat dissipation cavity forming a paraffin filling cavity at the corresponding position of the low-power chip, the paraffin filling cavity and the liquid metal filling cavity being separated by an annular liquid cooling channel, and a plurality of air cooling channels being provided through the bottom of the lower shell.

[0005] Furthermore, elastic layers are laid in both the liquid metal filling cavity and the paraffin filling cavity, and the elastic layers are used to adapt to the volume change from solid to liquid.

[0006] Furthermore, two detection circular holes are provided at the bottom of the lower shell, the two detection circular holes are connected to the liquid metal filling cavity and the paraffin filling cavity respectively, and the pressure axis of the pressure sensor is installed in the detection circular holes and contacts the elastic layer.

[0007] Furthermore, the four inner side walls of the lower shell are each provided with a plurality of slots, and the plurality of slots are arranged at equal intervals in the horizontal direction. A sphere is arranged in the slot, and the slot is in the shape of a truncated cone. The diameter of the slot gradually decreases in the direction approaching the upper shell, and the minimum diameter of the slot is smaller than the diameter of the sphere. The side walls of the upper shell are each provided with grooves at positions corresponding to the slots, and a part of the sphere is fitted into the groove.

[0008] Furthermore, rectangular grooves are provided at the tops of the four sides of the lower shell body, and a lower pressure plate is slidably arranged in the rectangular groove. The lower pressure plate has the freedom to move along the thickness direction of the lower shell body, and the notch is communicated with the rectangular groove of the corresponding side. A wedge-shaped surface is provided at the bottom of the lower pressure plate close to the notch. When the ball contacts the wedge-shaped surface, the ball disengages from the groove. When the ball contacts the flat part of the lower pressure plate, the ball is partially located in the groove.

[0009] Furthermore, a limiting rod is provided at one end of the lower pressure plate, and the limiting rod is slidably penetrated through the lower shell body, and a limiting socket is provided at one end of the lower pressure plate close to the limiting rod, and one end of the limiting rod is adapted to fit in the limiting socket.

[0010] Furthermore, the side wall of the lower shell is provided with a large diameter hole and a small diameter hole at the position where the limit rod is set, and the two ends of the small diameter hole are respectively connected to the rectangular groove and the large diameter hole, and the limit rod is slidably adapted to the small diameter hole, and a limit plate is slidably arranged in the large diameter hole, and the end of the limit rod away from the lower pressure plate is fixedly connected to the limit plate, and a spring is sleeved on the limit rod, one end of the spring is connected to the limit plate, and the other end is connected to the step formed by the large diameter hole and the small diameter hole, and the limit plate and the lower pressure plate are both connected with pull rings, and when the spring is in normal state, one end of the limit rod is inserted into the limit plug hole.

[0011] Furthermore, the side wall of the lower shell is provided with two injection holes, and the two injection holes are respectively connected to the liquid metal filling chamber and the paraffin filling chamber. The bottom wall of the lower shell is provided with a coolant inlet and a coolant outlet, and the coolant inlet and the coolant outlet are respectively connected to the two ends of the annular liquid cooling channel. A sealed injection mechanism is arranged in the injection hole, and the sealed injection mechanism includes a hard plug, a screw, a threaded slider, an annular fixing block and a rubber sealing ring. The inner wall of the injection hole and the outer wall of the hard plug are both threaded. The hard plug thread is adapted in the injection hole, and the screw is rotatably arranged in the injection hole. The hard plug has a limiting slide rod fixed on it parallel to the screw rod, the threaded slider is threadedly mounted on the screw rod, and the threaded slider is slidably mounted on the limiting slide rod, the limiting slide rod is fixedly mounted with the annular fixing block, the annular fixing block is located between the hard plug and the threaded slider, the rubber sealing ring is fixed on one end of the annular fixing block close to the threaded slider, the diameter of the rubber sealing ring is smaller than the diameter of the injection hole, the threaded slider squeezes the rubber sealing ring to produce deformation, so as to make the outer wall of the rubber sealing ring close to the inner wall of the injection hole.

[0012] Furthermore, the annular fixing block is penetrated by a circular avoidance hole for the screw rod to pass through, the hard plug, the annular fixing block and the threaded slider are penetrated by small injection holes, the hard plug is provided with a countersunk hole at one end away from the screw rod, one end of the screw rod extends to the countersunk hole and a hexagonal nut is fixed therein, a sealing ring is provided on the bottom wall of the countersunk hole, the hexagonal nut squeezes the sealing ring to produce deformation, a rubber sealing disk is fixed at one end of the hard plug away from the screw rod, the rubber sealing disk is pressed against the outer wall of the lower shell body, and the rubber sealing disk is provided with an operating circular hole at the position of the countersunk hole.

[0013] Furthermore, a first rubber seal is fixed around the side wall of the upper shell, a first annular sealing groove is provided on the side wall of the lower shell, the first rubber seal is interference fit in the first annular sealing groove, a second annular sealing groove is provided on the top of the annular liquid-cooling channel surrounding the liquid metal filling cavity, a second rubber seal is fixed to the inner top wall of the upper shell, and the second rubber seal is interference fit in the second annular sealing groove.

[0014] The beneficial effects of the present invention are:

[0015] 1. Combining low-melting-point liquid metal with traditional phase-change energy storage heat sinks, and utilizing the high thermal conductivity of liquid metal, the heat of chips with high power consumption can be transferred more quickly to the heat storage area of ​​the phase-change material, effectively solving the heat dissipation problems in scenarios where the overall thermal capacity requirements of electronic components are high and large chips need to be quickly evenly heated.

[0016] 2. By setting an elastic layer to adapt to the volume changes caused by the deformation of liquid metal and paraffin, the liquid metal with changing volume can always fill the liquid metal filling cavity, and the paraffin with changing volume can always fill the paraffin filling cavity, thereby ensuring good heat dissipation contact and improving the heat dissipation effect. At the same time, deformation or damage of the radiator caused by volume expansion is avoided, thereby extending the service life of the radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the explosion of a paraffin and liquid metal composite phase change energy storage radiator of the present invention Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the internal structure of the lower shell of a paraffin and liquid metal composite phase-change energy storage radiator of the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0022] Figure 6 A top view of a paraffin and liquid metal composite phase-change energy storage radiator of the present invention;

[0023] Figure 7 for Figure 6 Middle BB section view;

[0024] Figure 8 for Figure 7 Enlarged view of point D in the middle;

[0025] Fig. 9 Schematic diagram of the explosion of a paraffin and liquid metal composite phase change energy storage radiator of the present invention Figure 2 ;

[0026] Fig.10 Schematic diagram of the explosion of a paraffin and liquid metal composite phase change energy storage radiator of the present invention Figure 3 ;

[0027] Fig.11 Schematic diagram of the explosion of a paraffin and liquid metal composite phase change energy storage radiator of the present invention Figure 4 ;

[0028] In the figure, 1-upper shell, 2-lower shell, 3-upper heat sink, 4-lower heat sink, 5-liquid metal filling cavity, 6-paraffin filling cavity, 7-annular liquid cooling channel, 8-air cooling channel, 9-elastic layer, 10-notch, 11-ball, 12-groove, 13-rectangular groove, 14-lower pressure plate, 15-wedge surface, 16-limit rod, 17-limit jack, 18-detection circular hole, 19-large diameter hole, 20-small diameter hole, 21-limit plate, 22-spring, 23-liquid injection hole , 24-coolant inlet, 25-coolant outlet, 26-hard plug, 27-screw, 28-threaded slider, 29-annular fixing block, 30-rubber sealing ring, 31-limiting slide bar, 32-avoidance circular hole, 33-liquid injection hole, 34-countersunk hole, 35-hexagon socket nut, 36-sealing ring, 37-rubber sealing disk, 38-operating circular hole, 39-first rubber seal, 40-first annular sealing groove, 41-second annular sealing groove, 42-second rubber seal. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0030] Embodiment 1

[0031] like Figures 1 to 11As shown, a paraffin and liquid metal composite phase change energy storage radiator comprises an upper shell 1 and a lower shell 2 which are separately arranged. An upper heat dissipation groove 3 is provided on the upper shell 1, and a lower heat dissipation groove 4 is provided on the lower shell 2. The upper shell 1 is embedded in the lower heat dissipation groove 4. When the design height of the upper shell 1 and the lower shell 2 remains unchanged, the thickness of the radiator can be reduced by adopting an embedded manner, thereby reducing the layout space of the radiator. A heat dissipation cavity is formed between the lower heat dissipation groove 4 and the upper heat dissipation groove 3. The heat dissipation cavity forms a liquid at the corresponding position of the high-power chip. A metal filling cavity 5 is formed, and a paraffin filling cavity 6 is formed at a corresponding position of the low-power chip in the heat dissipation cavity. Liquid metal and paraffin are respectively filled in the liquid metal filling cavity 5 and the paraffin filling cavity 6. The paraffin filling cavity 6 and the liquid metal filling cavity 5 are separated by an annular liquid cooling channel 7. A plurality of air cooling channels 8 are provided through the bottom of the lower shell 2. The plurality of air cooling channels 8 are arranged linearly, and the width of the air cooling channel 8 gradually decreases along its length direction, which can accelerate the wind speed passing through the air cooling channel 8 and can quickly take away the heat. In specific implementation, the mold The distribution of the chips is shown in that the middle part is an area with relatively large power consumption, and the surrounding parts are areas with relatively small power consumption. Therefore, the liquid metal filling cavity 5 is arranged in the middle of the heat dissipation cavity. The liquid metal filling cavity 5 is filled with liquid metal with high latent heat and high thermal conductivity, which is used to quickly even out the heat of the middle large power consumption chip and provide the main energy storage function. The paraffin filling cavity 6 is arranged around the liquid metal filling cavity 5 and is filled with paraffin phase change material around the paraffin filling cavity 6 to enhance the heat storage capacity of the entire radiator and reduce the weight of the radiator. A circular liquid cooling channel 7 is set between the paraffin filling cavity 6 and the liquid metal filling cavity 5 to provide users with chip cooling during long-term debugging, and can also further reduce the weight of the radiator. At the same time, it can also assist in cooling with liquid cooling. The air cooling channel 8 can cool the paraffin and liquid metal and extend the cooling working time of the paraffin and liquid metal. The air cooling channel 8 uses the cooling fan in the server to cool the air. The cooling fan accelerates the air flow. The air flows rapidly in the air cooling channel 8, driving the heat of the paraffin and liquid metal. The radiator integrates paraffin heat dissipation, liquid metal heat dissipation, liquid cooling heat dissipation, and air cooling heat dissipation, and they assist each other, thereby improving the heat dissipation capacity of the radiator and the working time of efficient heat dissipation, and effectively solving the heat dissipation problems in scenarios such as high overall thermal capacity requirements of electronic components and large chips that need to be quickly equalized in temperature. The working principle of the above-mentioned phase change energy storage radiator is: when the chip heat source is working, the heat released is conducted to the radiator through the thermal interface material, eliminating the heat concentration of the heat source and playing a temperature protection role for the chip. The phase change material and metal shell inside the radiator absorb and store heat, and at the same time conduct heat to the surrounding areas. The heat storage and heat dissipation of the radiator runs through the entire process. Before the phase change material reaches the phase change temperature, the phase change material is in a solid state, and its heat transfer method is heat conduction, and its heat storage method is sensible heat storage.When the temperature reaches the phase change temperature, the phase change material begins to melt and starts to store latent heat. The temperature of the phase change material remains basically unchanged. At this time, the heat transfer methods include heat conduction and heat convection. After the phase change material is completely melted, the phase change material stores energy through sensible heat again. After the heating device stops working, the radiator shell and internal materials begin to release heat to the outside through heat conduction. The phase change material changes from liquid to solid, and finally drops to the same temperature as the ambient temperature, waiting for the next heat storage and release cycle.

[0032] Embodiment 2

[0033] The volume of the phase change material (paraffin and liquid metal) will change during the process of changing its state. When the paraffin and liquid metal change from solid to liquid, they will absorb heat and expand, and their volume will increase. The solid paraffin and liquid metal are injected in a filling manner. After the volume increases, they will squeeze the upper shell 1 and the lower shell 2, which is easy to cause deformation or damage to the radiator. If filled in a liquid manner, the paraffin and liquid metal are not in a filling state after cooling to a solid, so that there is a gap between the phase change material and the shell, thereby reducing the heat transfer rate and the heat dissipation effect. For this reason, on the basis of the first embodiment, as Figure 1 and Figure 2 As shown, an elastic layer 9 is laid in the liquid metal filling cavity 5 and the paraffin filling cavity 6. The elastic layer 9 is used to adapt to the volume change from solid to liquid. Paraffin and liquid metal are respectively injected into the paraffin filling cavity 6 and the liquid metal filling cavity 5 in liquid form, so that the injection of paraffin and liquid metal is convenient. The injection amount of paraffin is greater than the volume of the paraffin filling cavity 6. Similarly, the injection amount of liquid metal is greater than the volume of the liquid metal filling cavity 5. In order to adapt to the injection volume of liquid paraffin and liquid metal, the elastic layer 9 will adaptively compress and deform. When the liquid paraffin and liquid metal are cooled into a solid, the volume will become smaller, and the elastic layer 9 will adapt to restore the deformation, so that the solid paraffin still fills the paraffin filling cavity 6 and the solid liquid metal still fills the liquid metal filling cavity 5, so that the heat conducted to the radiator by the thermal interface material can be well absorbed by the paraffin and liquid metal, thereby improving the heat dissipation effect without affecting the radiator.

[0034] Furthermore, if Figure 1 , Figure 2 and Fig.10As shown, two detection holes 18 are opened at the bottom of the lower shell 2, and the two detection holes 18 are connected to the liquid metal filling cavity 5 and the paraffin filling cavity 6 respectively. The pressure axis of the pressure sensor is installed in the detection hole 18 and contacts the elastic layer 9. The deformation pressure of the elastic layer 9 can be detected by the pressure sensor, and the injection amount of paraffin and liquid metal is judged according to the pressure, so that the injection amount of liquid paraffin is greater than the volume of the paraffin filling cavity 6, and the injection amount of liquid metal is greater than the volume of the liquid metal filling cavity 5, so as to ensure that the filling amount meets the requirements. Secondly, the heat storage and release cycle process of the radiator is monitored in real time according to the pressure sensor, and the pressure value of each heat storage and release cycle is compared with the deformation pressure of the elastic layer 9 when the phase change material is first injected. When the difference exceeds the set value, it means that the loss of paraffin and liquid metal cannot meet the solid filling. At this time, paraffin and liquid metal filling is required, which can timely remind the replenishment of phase change material, thereby continuously ensuring the good heat dissipation capacity of the radiator. It should be noted that, due to the setting of the elastic layer 9, the injection amount of paraffin and liquid metal is greater than the theoretical filling amount, thereby greatly extending the time when the paraffin and liquid metal are consumed and not filled, thereby extending the time for replenishing the phase change material, and reducing the workload of the radiator's later maintenance. In specific implementation, during the initial filling, the standard solid phase change material is filled with the volume size of the liquid metal filling cavity 5 and the paraffin filling cavity 6, which can be completed in one go, improving the filling efficiency, and then the upper shell 1 and the lower shell 2 are connected to realize the assembly of the radiator.

[0035] Embodiment 3

[0036] Since the phase change material needs to be replenished when it is consumed, in order to facilitate the filling of the phase change material, it is necessary to consider how to fill the phase change material without disassembling the heat sink. Therefore, based on the second embodiment, Figures 1 to 5As shown, the side wall of the lower shell 2 is provided with two injection holes 23, and the two injection holes 23 are connected to the liquid metal filling chamber 5 and the paraffin filling chamber 6 respectively. Liquid metal is injected into the liquid metal filling chamber 5 through one injection hole 23, and liquid paraffin is injected into the paraffin filling chamber 6 through the other injection hole 23. Due to the embedding of the upper shell 1 and the lower shell 2, in order to ensure the smooth filling of the phase change material, one of the injection holes 23 passes through the upper shell 1 and is connected to the liquid metal filling chamber 5 with the annular liquid cooling channel 7, and the other injection hole 23 passes through the upper shell 1 and is connected to the paraffin filling chamber 6. The bottom wall of the lower shell 2 is provided with a coolant inlet 24 and a coolant outlet 25, and the coolant inlet 24 and the coolant outlet 25 are respectively connected to the two ends of the annular liquid cooling channel 7, and the coolant inlet 24 and The coolant outlet 25 is respectively connected to the liquid inlet pipe and the liquid outlet pipe to realize the circulation of the coolant and provide water-cooled heat dissipation. A sealed liquid injection mechanism is arranged in the liquid injection hole 23, and the sealed liquid injection mechanism includes a hard plug 26, a screw rod 27, a threaded slider 28, an annular fixing block 29 and a rubber sealing ring 30. The inner wall of the liquid injection hole 23 and the outer wall of the hard plug 26 are both threaded. The hard plug 26 is threadedly adapted in the liquid injection hole 23. The screw rod 27 is rotatably arranged on the hard plug 26. A limiting slide bar 31 is fixed on the hard plug 26 parallel to the screw rod 27. The threaded slider 28 is threadedly sleeved on the screw rod 27, and the threaded slider 28 is slidably sleeved on the limiting slide bar 31. An annular fixing block 29 is fixedly sleeved on the limiting slide bar 31. The annular fixing block 29 is located at Between the hard plug 26 and the threaded slider 28, a rubber sealing ring 30 is fixed at one end of the annular fixing block 29 close to the threaded slider 28. The diameter of the rubber sealing ring 30 is smaller than the diameter of the injection hole 23. The threaded slider 28 squeezes the rubber sealing ring 30 to produce deformation, so that the outer wall of the rubber sealing ring 30 is close to the inner wall of the injection hole 23. After the phase change material is filled, the injection hole 23 needs to be sealed to prevent the liquid phase change material from flowing out of the injection hole 23. Therefore, higher requirements are placed on the sealing performance of the injection hole 23. The diameters of the threaded slider 28, the annular fixing block 29 and the rubber sealing ring 30 are all smaller than the diameter of the injection hole 23, which facilitates the installation of the sealed injection mechanism in the injection hole 23, and the hard plug 26 is threadedly connected to the injection hole 23. When the annular fixing block 29 is also located in the injection hole 23, the screw rod 27 is then rotated to limit the rotational freedom of the threaded slider 28 through the limiting slide bar 31, so that the threaded slider 28 moves linearly along the axial direction of the screw rod 27, and the threaded slider 28 moves close to the annular fixing block 29, so that the threaded slider 28 squeezes the rubber sealing ring 30 to produce deformation, and the rubber sealing ring 30 is axially deformed to increase the diameter of the rubber sealing ring 30, so that the outer wall of the rubber sealing ring 30 is tightly against the inner wall of the injection hole 23 to form a high-strength sealing surface, which greatly improves the sealing performance of the injection hole 23 and effectively prevents the liquid phase change material from overflowing. Secondly, after the rubber sealing ring 30 expands radially, its inner hole is tightly against the outer wall of the screw rod 27 and the inner wall of the limiting slide bar 31,Thus, the gap between the rubber sealing ring 30 and the screw 27 is eliminated, and the full sealing of the injection hole 23 can be achieved by simply squeezing the rubber sealing ring 30; it is worth noting that since the paraffin filling chamber 6 is arranged around the liquid metal filling chamber 5, in order to ensure that the sealing injection mechanism that closes the liquid metal filling chamber 5 can smoothly seal the corresponding injection hole 23, the rubber sealing ring 30 in the sealing injection mechanism is tightly attached to the injection hole 23 in the annular liquid cooling channel 7, completing the sealing of the injection hole 23 and also playing the role of isolating the liquid metal filling chamber 5 from the paraffin filling chamber 6.

[0037] Embodiment 4

[0038] Since the phase change material needs to be supplemented later, it is very inconvenient to remove the sealed liquid injection mechanism to fill the phase change material at this time, and the operation is complicated. It is also easy to cause the phase change material in the liquid metal filling cavity 5 and the paraffin filling cavity 6 to overflow. Therefore, based on the third embodiment, as Figures 1 to 5As shown, the annular fixing block 29 is penetrated with an avoidance circular hole 32 for the screw rod 27 to move through, and the hard plug 26, the annular fixing block 29 and the threaded slider 28 are penetrated with injection holes 33. The hard plug 26 is provided with a countersink 34 at one end away from the screw rod 27. One end of the screw rod 27 extends to the countersink 34 and is fixed with a hexagon socket nut 35. The bottom wall of the countersink 34 is provided with a sealing ring 36. The hexagon socket nut 35 squeezes the sealing ring 36 to produce deformation. The hard plug 26 is fixed with a rubber sealing disk 37 at one end away from the screw rod 27. The rubber sealing disk 37 is pressed tightly against the bottom On the outer wall of the shell 2, the rubber sealing disk 37 is provided with an operating circular hole 38 at the position of the counterbore 34. Since the rubber sealing ring 30 in the sealing injection mechanism of the sealed liquid metal filling cavity 5 acts on the injection hole of the annular liquid cooling channel 7, the injection hole on the lower shell 2 is not sealed, so that the phase change material in the paraffin filling cavity 6 will overflow through the injection hole on the lower shell 2. For this reason, a rubber sealing disk 37 is provided. The diameter of the rubber sealing disk 37 is larger than the diameter of the injection hole 23, so that the rubber sealing disk 37 is pressed against the lower shell 2 to form a second sealing surface, thereby sealing the lower shell 2. The injection hole 23 and the rubber sealing disk 37 are provided with marks at the corresponding positions of the injection holes 33, so as to facilitate the positioning of the injection holes 33. In the process of replenishing the phase change material in the later stage, the phase change material is in a liquid state and filled by injection. The injection needle pierces the rubber sealing disk 37 and penetrates into the injection hole 33, and then penetrates the rubber sealing ring 30 through the injection hole 33 and penetrates into the liquid metal filling cavity or the paraffin filling cavity 6, so as to complete the replenishment of the paraffin material and the liquid metal material. After the replenishment is completed, the injection needle is withdrawn, and the rubber sealing disk 37 and the rubber sealing ring 30 are deformed by themselves. The rubber sealing disk 37 and the rubber sealing ring 30 are used for recovery, and the elasticity of the rubber sealing disk 37 and the rubber sealing ring 30 is used to realize non-disassembly filling. After the filling is completed, the sealing can be realized again. The operation is simple and reliable, and it is ensured that the original phase change material inside will not overflow during the filling. Preferably, the rubber sealing disk 37 and the rubber sealing ring 30 are made of halogenated butyl rubber, which can be well reset to ensure that the sealing is not affected; the screw rod 27 is rotated by rotating the hexagon socket nut 35 to realize the movement of the threaded slider 28, and the sealing performance of the connection between the hexagon socket nut 35 and the screw rod 27 is improved by the sealing ring 36 to achieve comprehensive sealing.

[0039] Furthermore, if Figures 1 to 11As shown, a first rubber seal 39 is fixed around the side wall of the upper shell 1, a first annular sealing groove 40 is provided on the side wall of the lower shell 2, and the first rubber seal 39 is interference fit in the first annular sealing groove 40. A second annular sealing groove 41 is provided on the top of the annular liquid-cooling channel 7 around the liquid metal filling cavity 5, and a second rubber seal 42 is fixed on the inner top wall of the upper shell 1, and the second rubber seal 42 is interference fit in the second annular sealing groove 41. The connection between the upper shell 1 and the lower shell 2 is sealed by the cooperation of the first rubber seal 39 and the first annular sealing groove 40, and the contact position of the annular liquid-cooling channel 7 and the upper shell 1 is sealed by the cooperation of the second rubber seal 42 and the second annular sealing groove 41, so as to ensure that the liquid metal filling cavity 5 and the paraffin filling cavity 6 will not affect each other, and the phase change materials will not be mixed.

[0040] Embodiment 5

[0041] Since the upper shell 1 is embedded in the lower shell 2 and is connected by conventional screws, multiple screws need to be arranged on the four sides of the lower shell 2 to achieve a stable connection, which makes the installation and removal of the upper shell 1 and the lower shell 2 time-consuming and laborious. Therefore, based on the fourth embodiment, as shown in FIG. Figures 1 to 8As shown, the four inner side walls of the lower shell 2 are provided with a plurality of notches 10, and the plurality of notches 10 are arranged at equal intervals in the horizontal direction. A ball 11 is arranged in the notch 10, and the notch 10 is in the shape of a truncated cone. The diameter of the notch 10 gradually decreases in the direction close to the upper shell 1, and the minimum diameter of the notch 10 is smaller than the diameter of the ball 11. The side walls of the upper shell 1 are provided with grooves 12 at positions corresponding to the notches 10, and a part of the ball 11 fits in the groove 12. The tops of the four sides of the lower shell 2 are provided with rectangular grooves 13, and the sliding grooves 13 are provided in the rectangular grooves 13. A lower pressing plate 14 is provided, and the lower pressing plate 14 has the freedom to move along the thickness direction of the lower shell 2. The notch 10 is communicated with the rectangular groove 13 of the corresponding side. A wedge-shaped surface 15 is provided at the bottom of the lower pressing plate 14 near the notch 10. When the ball 11 contacts the wedge-shaped surface 15, the ball 11 is separated from the groove 12. When the ball 11 contacts the plane part of the lower pressing plate 14, the ball 11 is partially located in the groove 12. When installing, move the lower pressing plate 14 upward so that the wedge-shaped surface 15 of the lower pressing plate 14 corresponds to the notch 10. Since the notch 10 is a truncated cone , and the end close to the lower pressing plate 14 is the large diameter end, so that the ball 11 moves close to the lower pressing plate 14 under its own gravity, so that the ball 11 contacts the wedge-shaped surface 15 of the lower pressing plate 14, so that the ball 11 is completely located in the notch 10, and then, the upper shell 1 is installed in the lower shell 2, so that the bottom of the lower shell 2 contacts the inner bottom wall of the lower shell 2, and finally the lower pressing plate 14 is moved downward to complete the connection between the upper shell 1 and the lower shell 2. During the downward movement of the lower pressing plate 14, the ball 11 will be pushed to move close to the groove 12, and when the lower pressing plate 14 is lowered, After moving into position, the ball 11 is separated from the wedge surface 15 and contacts the flat part of the lower pressing plate 14. At this time, the lower pressing plate 14 pushes the ball 11 into the groove 12 and presses against the ball 11, so that the ball 11 will not be separated from the groove 12, thereby realizing the quick connection between the upper shell 1 and the lower shell 2. When disassembling, it is only necessary to move the lower pressing plate 14 upward so that the wedge surface 15 of the lower pressing plate 14 corresponds to the notch 10, so that the ball 11 is separated from the groove 12 under its own gravity, thereby realizing the quick disassembly between the upper shell 1 and the lower shell 2, which is simple and quick to operate. It should be noted that the connection position between the upper shell 1 and the lower shell 2 is located between the first rubber seal 39 and the sealing injection mechanism, so that the first rubber seal 39 can form an annular seal to achieve a full sealing effect. At the same time, the sealing injection mechanism is located below the ball 11, so that the assembly of the upper shell 1 and the lower shell 2 does not affect the injection function.

[0042] Furthermore, if Figures 1 to 8As shown, a limit rod 16 is provided at one end of the lower pressure plate 14, and the limit rod 16 is slidably penetrated in the lower shell body 2. A limit plug hole 17 is provided at one end of the lower pressure plate 14 close to the limit rod 16, and one end of the limit rod 16 is adapted in the limit plug hole 17. A large diameter hole 19 and a small diameter hole 20 are provided on the side wall of the lower shell body 2 at the position where the limit rod 16 is provided. The two ends of the small diameter hole 20 are respectively connected to the rectangular groove 13 and the large diameter hole 19. The limit rod 16 is slidably adapted to the small diameter hole 20. A limit disk 21 is slidably provided in the large diameter hole 19. The end of the limit rod 16 away from the lower pressure plate 14 is fixedly connected to the limit disk 21. A spring 22 is sleeved on the limit rod 16. One end of the spring 22 is connected to the limit disk 21, and the other end is connected to the step formed by the large diameter hole 19 and the small diameter hole 20. Pull rings are connected to the limit disk 21 and the lower pressure plate 14. When the spring 22 is in a normal state, The locking mechanism 14 is formed by the spring 22 and the limit rod 16 is connected to the locking mechanism 14 so that the locking mechanism 14 can be locked.

Claims

1. A paraffin and liquid metal composite phase change energy storage radiator, characterized in that: The invention comprises an upper shell (1) and a lower shell (2) which are separately arranged, wherein an upper heat dissipation groove (3) is provided on the upper shell (1), and a lower heat dissipation groove (4) is provided on the lower shell (2), wherein the upper shell (1) is embedded and installed in the lower heat dissipation groove (4), and a heat dissipation cavity is formed between the lower heat dissipation groove (4) and the upper heat dissipation groove (3), wherein the heat dissipation cavity forms a liquid metal filling cavity (5) at a corresponding position of a high-power chip, and the heat dissipation cavity forms a paraffin filling cavity (6) at a corresponding position of a low-power chip, wherein the paraffin filling cavity (6) is separated from the liquid metal filling cavity (5) by an annular liquid cooling channel (7), and a plurality of air cooling channels (8) are provided through the bottom of the lower shell (2), wherein the liquid metal filling cavity (5) is arranged in the middle of the heat dissipation cavity, and the paraffin filling cavity (6) is arranged around the liquid metal filling cavity (5) on the periphery of the heat dissipation cavity.

2. The paraffin and liquid metal composite phase change energy storage radiator according to claim 1, characterized in that: The liquid metal filling cavity (5) and the paraffin filling cavity (6) are both provided with an elastic layer (9), and the elastic layer (9) is used to adapt to the volume change from solid to liquid.

3. A paraffin and liquid metal composite phase change energy storage radiator according to claim 2, characterized in that: Two detection circular holes (18) are provided at the bottom of the lower shell (2), the two detection circular holes (18) respectively communicating with the liquid metal filling cavity (5) and the paraffin filling cavity (6), and a pressure shaft of the pressure sensor is installed in the detection circular holes (18) and contacts the elastic layer (9).

4. The paraffin and liquid metal composite phase change energy storage radiator according to claim 1, characterized in that: The four inner side walls of the lower shell (2) are each provided with a plurality of notches (10), the plurality of notches (10) being arranged at equal intervals in the horizontal direction, a sphere (11) being arranged in the notch (10), the notch (10) being in the shape of a truncated cone, the diameter of the notch (10) gradually decreasing in a direction approaching the upper shell (1), the minimum diameter of the notch (10) being smaller than the diameter of the sphere (11), the side walls of the upper shell (1) being each provided with a groove (12) at a position corresponding to the notch (10), a part of the sphere (11) being adapted to fit in the groove (12).

5. The paraffin and liquid metal composite phase change energy storage radiator according to claim 4, characterized in that: A rectangular groove (13) is provided at the top of each of the four sides of the lower shell (2), a lower pressure plate (14) is slidably arranged in the rectangular groove (13), and the lower pressure plate (14) has the freedom to move along the thickness direction of the lower shell (2). The notch (10) is communicated with the rectangular groove (13) of the corresponding side, and a wedge-shaped surface (15) is provided at the bottom of the lower pressure plate (14) near the notch (10). When the ball (11) contacts the wedge-shaped surface (15), the ball (11) is separated from the groove (12), and when the ball (11) contacts the flat surface of the lower pressure plate (14), the ball (11) is partially located in the groove (12).

6. The paraffin and liquid metal composite phase change energy storage radiator according to claim 5, characterized in that: A limiting rod (16) is provided at one end of the lower pressing plate (14), and the limiting rod (16) is slidably inserted into the lower shell (2). A limiting insertion hole (17) is provided at one end of the lower pressing plate (14) close to the limiting rod (16), and one end of the limiting rod (16) is adapted to fit into the limiting insertion hole (17).

7. The paraffin and liquid metal composite phase change energy storage radiator according to claim 6, characterized in that: The side wall of the lower shell (2) is provided with a large diameter hole (19) and a small diameter hole (20) at a position where the limiting rod (16) is provided, and the two ends of the small diameter hole (20) are respectively connected to the rectangular groove (13) and the large diameter hole (19), and the limiting rod (16) is slidably adapted to the small diameter hole (20), and a limiting plate (21) is slidably provided in the large diameter hole (19), and one end of the limiting rod (16) away from the lower pressure plate (14) is fixedly connected to the limiting plate (21), and a spring (22) is sleeved on the limiting rod (16), one end of the spring (22) is connected to the limiting plate (21), and the other end is connected to a step formed by the large diameter hole (19) and the small diameter hole (20), and the limiting plate (21) and the lower pressure plate (14) are both connected to pull rings, and when the spring (22) is in a normal state, one end of the limiting rod (16) is inserted into the limiting insertion hole (17).

8. The paraffin and liquid metal composite phase change energy storage radiator according to claim 1, characterized in that: The side wall of the lower shell (2) is provided with two injection holes (23), the two injection holes (23) are connected to the liquid metal filling chamber (5) and the paraffin filling chamber (6) respectively, the bottom wall of the lower shell (2) is provided with a coolant inlet (24) and a coolant outlet (25), the coolant inlet (24) and the coolant outlet (25) are connected to the two ends of the annular liquid cooling channel (7) respectively, a sealing injection mechanism is arranged in the injection hole (23), the sealing injection mechanism comprises a hard plug (26), a screw (27), a threaded slider (28), an annular fixing block (29) and a rubber sealing ring (30), the inner wall of the injection hole (23) and the outer wall of the hard plug (26) are both threaded, the hard plug (26) is threadedly adapted in the injection hole (23), the screw (27) is rotatably arranged in the hard plug The hard plug (26) is provided with a limit slide bar (31) fixed thereon in parallel with the screw rod (27); the threaded slide bar (28) is threadedly sleeved on the screw rod (27); the threaded slide bar (28) is slidably sleeved on the limit slide bar (31); the limit slide bar (31) is fixedly sleeved with the annular fixing block (29); the annular fixing block (29) is located between the hard plug (26) and the threaded slide bar (28); the rubber sealing ring (30) is fixed to one end of the annular fixing block (29) close to the threaded slide bar (28); the diameter of the rubber sealing ring (30) is smaller than the diameter of the injection hole (23); the threaded slide bar (28) squeezes the rubber sealing ring (30) to generate deformation, so as to make the outer wall of the rubber sealing ring (30) close to the inner wall of the injection hole (23).

9. The paraffin and liquid metal composite phase change energy storage radiator according to claim 8, characterized in that: The annular fixing block (29) is provided with an escape circular hole (32) for the screw rod (27) to move through. The hard plug (26), the annular fixing block (29) and the threaded slider (28) are all provided with injection holes (33). The hard plug (26) is provided with a countersunk hole (34) at one end away from the screw rod (27). One end of the screw rod (27) extends into the countersunk hole (34) and is fixed with a hexagon socket nut (35). The bottom wall of the countersunk hole (34) is provided with a sealing ring (36). The hexagon socket nut (35) squeezes the sealing ring (36) to produce deformation. The hard plug (26) is fixed with a rubber sealing disk (37) at one end away from the screw rod (27). The rubber sealing disk (37) is pressed against the outer wall of the lower shell (2). The rubber sealing disk (37) is provided with an operating circular hole (38) at the position of the countersunk hole (34).

10. The paraffin and liquid metal composite phase change energy storage radiator according to claim 1, characterized in that: A first rubber seal (39) is fixed around the side wall of the upper shell (1), a first annular sealing groove (40) is formed on the side wall of the lower shell (2), and the first rubber seal (39) is interference fit in the first annular sealing groove (40), a second annular sealing groove (41) is formed around the top of the annular liquid cooling channel (7) and around the liquid metal filling cavity (5), a second rubber seal (42) is fixed to the inner top wall of the upper shell (1), and the second rubber seal (42) is interference fit in the second annular sealing groove (41).

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