A multifunctional mixing device for high thermal conductivity filler dispersion

Abstract

The utility model relates to the field of filler dispersion mixing discloses a kind of multifunctional mixing equipment for high thermal conductivity filler dispersion, including bottom plate and mixing tank, bottom plate is fixedly connected with the support vertical plate of both sides corresponding arrangement, mixing tank is rotatably connected between both sides support vertical plate, angle adjusting mechanism that drives mixing tank to swing is equipped on bottom plate;Rotatably connected with mixing inner barrel in mixing tank, mixing inner barrel is open end near the end of sealing bin cover, first motor that drives mixing inner barrel rotation is fixedly connected with mixing tank outer one end, mixing inner barrel inner wall is fixedly connected with partition, mixing grid is formed between adjacent partition, all rotatably connected in mixer in mixing grid, mixing inner barrel one end rotatably connected with gear that drives corresponding mixing grid in mixer rotation, mixing tank inner wall is fixedly connected with the inner ring gear meshed with gear.The utility model has the advantages compared with prior art, high thermal conductivity filler can be dispersed and mixed in multidimension, so that dispersion is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of filler dispersion and mixing technology, specifically to a multifunctional mixing device for dispersing high thermal conductivity fillers. Background Technology

[0002] With the rapid development of technologies such as 5G communication, artificial intelligence, and new energy vehicles, electronic devices are evolving towards higher power density, miniaturization, and higher integration. High thermal conductivity silicone encapsulation material technology is mature and constantly making breakthroughs. Leading companies have adopted multifunctional nanofiller compounding technology and precise silicone resin molecular structure design to achieve a balance between thermal conductivity and mechanical properties. In the process of processing high thermal conductivity silicone encapsulation materials, it is necessary to disperse and mix the high thermal conductivity filler. However, existing dispersion and mixing equipment only relies on unidirectional rotation stirring, and the shear force is unidirectional and unevenly distributed, which greatly affects the dispersion effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a multi-functional mixing device for dispersing high thermal conductivity fillers, which can disperse and mix high thermal conductivity fillers in multiple dimensions to make the dispersion more uniform.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a multifunctional mixing device for dispersing high thermal conductivity fillers, comprising a base plate and a mixing tank, wherein a sealing cover is provided at one end of the mixing tank, and two corresponding support plates are fixedly connected to the base plate, the mixing tank is rotatably connected between the two support plates, and an angle adjustment mechanism for driving the mixing tank to swing is provided on the base plate; a mixing inner barrel is rotatably connected inside the mixing tank, the end of the mixing inner barrel near the sealing cover is an open end, a first motor for driving the mixing inner barrel to rotate is fixedly connected to the outside end of the mixing tank, and at least one partition is fixedly connected to the inner wall of the mixing inner barrel, forming a mixing grid between adjacent partitions, and an agitator is rotatably connected to each mixing grid, a gear for driving the agitator in the corresponding mixing grid is rotatably connected to one end of the mixing inner barrel, and an internal gear ring meshing with the gear is fixedly connected to the inner wall of the mixing tank.

[0005] As an improvement, the angle adjustment mechanism includes an adjustment groove located on the base plate along the length of the mixing tank. A movable block is slidably connected in the adjustment groove. An adjustment bracket is hinged to the upper end of the movable block. The other end of the adjustment bracket is hinged to the bottom surface of the mixing tank. A moving mechanism for driving the movable block to slide is provided in the adjustment groove.

[0006] As an improvement, the moving mechanism includes a moving lead screw rotatably connected to the adjusting groove, a moving block threadedly connected to the outer wall of the moving lead screw, and a second motor for driving the moving lead screw to rotate fixedly connected to one end of the base plate.

[0007] As an improvement, the agitator includes a stirring rod rotatably connected to the mixing compartment, and at least one stirring blade is fixedly connected to the outer wall of the stirring rod.

[0008] As an improvement, the sealed compartment cover has a transparent observation window at its center.

[0009] The advantages of this invention compared to existing technologies are as follows: The angle adjustment mechanism drives the mixing tank to periodically reciprocate, causing the filler to flow axially within the tank. The rotation of the inner mixing drum drives the internal mixing compartments and agitators to revolve. The agitator in each mixing compartment rotates under the meshing action of gears and a fixed internal gear ring, providing strong shearing. Simultaneously, when the mixing compartment carrying the filler rotates upwards with the inner mixing drum, the filler falls downwards into the lower mixing compartments under gravity, creating impact and remixing. The synergistic effect of multiple motions results in multi-dimensional, multi-directional shearing and mixing, significantly overcoming the shortcomings of traditional unidirectional stirring where the shear force is singular and unevenly distributed. This makes the dispersion of the high thermal conductivity filler in the organosilicon matrix more uniform, efficient, and thorough. Attached Figure Description

[0010] Figure 1 This is an exploded view of a multifunctional mixing device for dispersing high thermal conductivity fillers according to this utility model.

[0011] Figure 2 This is a schematic diagram of the structure of a multifunctional mixing device for dispersing high thermal conductivity fillers according to this utility model.

[0012] Figure 3 This is a cross-sectional view of a multifunctional mixing device for dispersing high thermal conductivity fillers according to this utility model. Figure 1 .

[0013] Figure 4 This is a cross-sectional view of a multifunctional mixing device for dispersing high thermal conductivity fillers according to this utility model. Figure 2 .

[0014] Figure 5 This is a schematic diagram of the mixing inner barrel structure of a multifunctional mixing device for dispersing high thermal conductivity fillers according to this utility model.

[0015] As shown in the figure: 1. Base plate; 2. Support plate; 3. Mixing tank; 4. Inner mixing drum; 5. Sealing cover; 6. Partition; 7. Mixing grid; 8. Stirring rod; 9. Stirring blade; 10. Moving screw; 11. Moving block; 12. Adjusting bracket; 13. Second motor; 14. Adjusting groove; 15. Gear; 16. Internal gear ring; 17. First motor; 18. Transparent observation window. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 5 As shown, a multifunctional mixing device for dispersing high thermal conductivity fillers includes a base plate 1 and a mixing tank 3. One end of the mixing tank 3 is provided with a sealing cover 5, and the center of the sealing cover 5 is provided with a transparent observation window 18. Supporting uprights 2 are fixedly connected to the base plate 1 on both sides. The mixing tank 3 is rotatably connected between the two supporting uprights 2. An angle adjustment mechanism for driving the mixing tank 3 to swing is provided on the base plate 1. The angle adjustment mechanism includes an adjustment groove located on the base plate 1 along the length of the mixing tank 3. 14. A movable block 11 is slidably connected in the adjusting groove 14. An adjusting bracket 12 is hinged to the upper end of the movable block 11. The other end of the adjusting bracket 12 is hinged to the bottom surface of the mixing tank 3. A moving mechanism for driving the movable block 11 to slide is provided in the adjusting groove 14. The moving mechanism includes a moving screw 10 rotatably connected in the adjusting groove 14. The movable block 11 is threaded to the outer wall of the moving screw 10. A second motor 13 for driving the moving screw 10 to rotate is fixedly connected to one end of the base plate 1.

[0018] A mixing inner barrel 4 is rotatably connected inside the mixing tank 3. The end of the mixing inner barrel near the sealing cover 5 is open. A first motor 17 that drives the mixing inner barrel to rotate is fixedly connected to the outer end of the mixing tank 3. At least one partition 6 is fixedly connected to the inner wall of the mixing inner barrel 4. A mixing compartment 7 is formed between adjacent partitions 6. A stirrer is rotatably connected to each mixing compartment 7. The stirrer includes a stirring rod 8 rotatably connected to the mixing compartment 7. At least one stirring blade 9 is fixedly connected to the outer wall of the stirring rod 8. A gear 15 that drives the stirrer in the corresponding mixing compartment 7 is rotatably connected to one end of the mixing inner barrel. An internal gear ring 16 that meshes with the gear 15 is fixedly connected to the inner wall of the mixing tank 3.

[0019] In practical use, the sealing chamber cover 5 is opened, and the high thermal conductivity filler to be mixed is added to each mixing compartment 7 of the mixing inner barrel 4 in proportion. Then, the sealing chamber cover 5 is closed and locked, and the first motor 17 is started to drive the mixing inner barrel 4 to rotate in the mixing tank 3. The rotation of the mixing inner barrel 4 drives the mixing compartment 7, the agitator and the material inside to rotate together. While the mixing inner barrel 4 is rotating, the gear 15 fixed at the end of the mixing inner barrel 4 meshes with the internal gear ring 16 fixed on the inner wall of the mixing tank 3. Since the internal gear ring 16 is fixed, the gear 15 rotates due to meshing with the internal gear ring 16 during the rotation of the mixing inner barrel 4. The rotation of the gear 15 drives the agitator 8 connected to it to rotate in the mixing compartment 7. The agitator blades 9 on the agitator 8 apply strong shearing and agitation to the material in the mixing compartment 7 to achieve initial dispersion.

[0020] The second motor 13 is started, driving the moving screw 10 to rotate. The rotation of the moving screw 10 causes the moving block 11, which is threadedly connected to it, to slide back and forth along the length of the mixing tank 3 in the adjusting groove 14. The moving block 11 pushes or pulls the bottom surface of the mixing tank 3 through the adjusting bracket 12. Since the mixing tank 3 is rotatably connected to the supporting plate 2 through the shafts at both ends, the back-and-forth movement of the moving block 11 is converted into the periodic reciprocating swing of the mixing tank 3 around its supporting axis. The swing of the mixing tank 3 causes all the materials in the tank to flow back and forth axially, overcoming the stratification or dead corners that may occur when the materials are in a single rotation state.

[0021] As the mixing compartment 7, filled with material, rotates to the upper position with the inner mixing drum 4, the material, under the influence of gravity, spills down from the opening of the mixing compartment 7 and impacts the material in the lower mixing compartment 7. This continuous "lifting-spilling" process, under the influence of gravity, achieves intense collisions, penetration, and remixing of materials between different mixing compartments 7 or different areas of the same mixing compartment 7, greatly promoting the uniform distribution of the filler and interfacial bonding.

[0022] Operators can observe the mixing state, flow, and dispersion uniformity of the material inside the tank in real time through the transparent observation window 18 in the center of the sealed cover 5. This allows for adjustments to parameters such as swing amplitude, speed, rotation speed, or determination of the mixing endpoint as needed. Once the mixing and dispersion requirements are met, the mixing tank 3 is driven to swing to a tilted state with the sealed cover 5 facing downwards via the adjustment mechanism. After the equipment stops, the sealed cover 5 is opened, and the uniformly mixed high thermal conductivity organosilicon composite material is slid out of the mixing inner barrel 4 for collection.

[0023] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0025] 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.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A multifunctional mixing device for dispersing high thermal conductivity fillers, comprising a base plate (1) and a mixing tank (3), wherein a sealing cover (5) is provided at one end of the mixing tank, characterized in that: The base plate (1) is fixedly connected to the support plates (2) arranged on both sides, and the mixing tank (3) is rotatably connected between the support plates (2) on both sides. The base plate (1) is provided with an angle adjustment mechanism to drive the mixing tank (3) to swing. The mixing tank (3) is rotatably connected to a mixing inner barrel (4). The mixing inner barrel (4) is open at one end near the sealing cover (5). The mixing tank (3) is fixedly connected to a first motor (17) that drives the mixing inner barrel (4) to rotate. The inner wall of the mixing inner barrel (4) is fixedly connected to at least one partition (6). A mixing compartment (7) is formed between adjacent partitions (6). A stirrer is rotatably connected to each mixing compartment (7). A gear (15) that drives the stirrer in the corresponding mixing compartment (7) is rotatably connected to one end of the mixing inner barrel (4). An internal gear ring (16) that meshes with the gear (15) is fixedly connected to the inner wall of the mixing tank (3).

2. The multifunctional mixing device for dispersing high thermal conductivity fillers according to claim 1, characterized in that: The angle adjustment mechanism includes an adjustment groove (14) arranged on the base plate (1) along the length of the mixing tank (3). A moving block (11) is slidably connected in the adjustment groove (14). An adjustment bracket (12) is hinged to the upper end of the moving block (11). The other end of the adjustment bracket (12) is hinged to the bottom surface of the mixing tank (3). A moving mechanism for driving the moving block (11) to slide is provided in the adjustment groove (14).

3. The multifunctional mixing device for dispersing high thermal conductivity fillers according to claim 2, characterized in that: The moving mechanism includes a moving screw (10) rotatably connected in the adjusting groove (14), a moving block (11) threadedly connected to the outer wall of the moving screw (10), and a second motor (13) that drives the moving screw (10) to rotate is fixedly connected to one end of the base plate (1).

4. The multifunctional mixing device for dispersing high thermal conductivity fillers according to claim 1, characterized in that: The agitator includes an agitator rod (8) rotatably connected to the mixing compartment (7), and at least one agitator blade (9) is fixedly connected to the outer wall of the agitator rod (8).

5. A multifunctional mixing device for dispersing high thermal conductivity fillers according to claim 1, characterized in that: The sealed compartment cover (5) has a transparent observation window (18) at its center.

Images