Solid-state battery powdering machine

Abstract

The invention discloses a solid-state battery powdering machine which comprises a driving seat, a powdering assembly detachably arranged on the driving seat and a cooling assembly used for cooling the driving seat and the powdering assembly. The driving seat comprises a shell and a driving motor rotationally arranged in the shell, and the output end of the driving motor extends out of the shell; the powdering assembly comprises a powdering bowl and a powdering blade rotationally arranged in the powdering bowl, the powdering bowl and the powdering blade are made of ceramic materials, the powdering bowl comprises a bowl body and a bowl cover covering the bowl body, and an electromagnet used for adsorbing metal impurities is arranged at the bottom of the bowl cover; the cooling assembly comprises an air draft unit, a first cooling pipe and a second cooling pipe, the first cooling pipe and the second cooling pipe are connected with the output end of the air draft unit, the first cooling pipe and the second cooling pipe are arranged in the shell in a penetrating mode, the output end of the first cooling pipe is inserted into the driving motor, and the output end of the second cooling pipe is arranged at the bottom of the powdering bowl.

Description

Technical Field

[0001] This invention relates to the field of solid-state battery processing equipment technology, and specifically to a solid-state battery powder mill. Background Technology

[0002] In solid-state battery manufacturing, pulverization of raw materials plays a crucial role. It refines raw materials such as solid electrolytes and positive electrode active materials, increasing the specific surface area of ​​particles, enhancing the contact area between different components, and promoting more complete interfacial reactions. Simultaneously, pulverization results in more uniform particle size, reducing agglomeration during mixing and ensuring a more even distribution of components. This improves electrode conductivity and electrolyte ion conduction efficiency, ensuring battery consistency and cycle performance, and laying a solid foundation for subsequent molding and other processes.

[0003] In existing solid-state battery manufacturing processes, solid-state battery raw materials are generally pulverized using a pulverizer. For example, an ultra-fine pulverizer for easy material discharge, disclosed in publication number CN 210022355U, includes a chassis, a rotating shaft, a motor housing, a pulverizing chamber, blades, and a cover. The motor housing houses a motor, and the motor's output shaft extends upward into the pulverizing chamber. One end of the rotating shaft is connected to a crank handle. The motor housing also houses an electronic control board, and the motor is connected to the electronic control board. A second power contact is provided on the bottom side of the motor housing, and a first power contact is provided on the inner side of the chassis. When the motor housing is tilted, the first and second power contacts disengage from each other. The second power contact is connected to the electronic control board, and the first power contact is connected to a plug, which is connected to mains power.

[0004] However, existing powder grinders lack cooling components, which may lead to excessively high temperatures during the grinding process, affecting the electrochemical performance of solid-state battery powder. Furthermore, existing powder grinders generally use metal blades for grinding, which can also affect the performance of the powder raw materials. In addition, other metal impurities are easily mixed in during the grinding process, affecting the quality of solid-state batteries. Summary of the Invention

[0005] To address the technical problems existing in the background art, the present invention proposes a solid-state battery pulverizer.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: A solid-state battery pulverizer includes a drive base, a pulverizing assembly detachably mounted on the drive base, and a cooling assembly for cooling the drive base and the pulverizing assembly. The drive unit includes a housing and a drive motor disposed within the housing, with the output end of the drive motor extending out of the housing; The powder grinding assembly includes a powder grinding bowl and a powder grinding blade disposed inside the powder grinding bowl. The powder grinding bowl and the powder grinding blade are made of ceramic material. The powder grinding bowl includes a bowl body and a bowl lid covering the bowl body. An electromagnet for adsorbing metal impurities is provided at the bottom of the bowl lid. The cooling assembly includes an exhaust unit, and a first cooling pipe and a second cooling pipe connected to the output end of the exhaust unit. The first cooling pipe and the second cooling pipe are installed inside the housing. The output end of the first cooling pipe is inserted into the drive motor, and the output end of the second cooling pipe is located at the bottom of the grinding bowl.

[0007] Preferably, a heat sink is provided on the top of the housing, the grinding bowl is placed on the heat sink, and the second cooling pipe is inserted into the heat sink. The heat sink has a plurality of first heat dissipation holes and a plurality of spaced support protrusions. The support protrusions form a heat dissipation channel connecting the first heat dissipation holes. The top of the housing has a plurality of second heat dissipation holes connecting the first heat dissipation holes. Through the above improvements, a cavity is formed inside the heat sink. On the one hand, airflow is delivered to the heat sink through the second cooling pipe. The airflow passes through the first heat dissipation holes and connects to the heat dissipation channel, thereby directly acting on the bottom of the grinding bowl and being discharged into the external environment through the heat dissipation channel. On the other hand, the temperature of the grinding bowl is conducted through the support protrusions and exchanges heat with the heat sink to dissipate heat from the grinding bowl. The heat of the drive motor is discharged through the second heat dissipation holes and discharged into the external environment through the first heat dissipation holes, thereby ensuring the heat dissipation effect on the drive motor and the grinding bowl.

[0008] Preferably, the heat sink is provided with a fixing structure, which includes a plurality of tension buckles spaced at intervals around the outer periphery of the heat sink, a fixing buckle on the tension buckles, and a snap-fit ​​piece formed on the outer periphery of the bowl lid. The snap-fit ​​piece has a fixing groove for the fixing buckle to be inserted into. The fixing buckle is inserted into the fixing groove and, as the tension buckle rotates, pulls the snap-fit ​​piece downward to make the powder bowl abut and fix it to the heat sink. With the above improvement, in the process of fixing the powder bowl, the fixing buckle can be rotated first to put the fixing buckle into the fixing groove of the snap-fit ​​piece, and then the tension buckle can be rotated downward to pull the snap-fit ​​piece downward, so that the bowl lid presses the bowl body and fixes the bowl body abutting against the heat sink, thus realizing the quick installation of the powder bowl.

[0009] Preferably, a sealing groove is formed on the bowl lid, and a sealing ring is disposed within the sealing groove, with the top of the bowl abutting against the sealing ring. These improvements enhance the sealing performance during the grinding process.

[0010] Preferably, a filter assembly is provided inside the bowl, and the filter assembly is located below the powder-grinding blade. Through the above improvements, the filter assembly can filter the solid-state battery raw material powder, thereby ensuring the fineness of the powder.

[0011] Preferably, the filter assembly includes a primary filter and a fine filter, both of which have through-holes. The aperture of the through-holes on the primary filter is larger than that on the fine filter. The fine filter is positioned below the primary filter. Through these improvements, the primary filter intercepts large particles of impurities, preventing them from clogging the through-holes on the fine filter. The fine filter then performs a secondary filtration of the powder after the primary filtration, ensuring a more uniform particle size, reducing particle agglomeration, and guaranteeing the purity and fineness of the powder. This provides stable raw materials for subsequent processes and optimizes the processing effect of solid-state battery raw materials.

[0012] Preferably, a vibration ring is provided on the outer periphery of the bowl, and several vibration units are embedded in the vibration ring. Through the above improvements, the vibration units cause the powder to fall quickly through vibration, which can prevent the powder from accumulating and clogging on the surface of the filter screen, improve the filtration efficiency, and the vibration can break up slightly agglomerated powder, allowing more qualified particles to pass through the sieve holes, improving the powder throughput and utilization rate. In addition, the vibration accelerates the falling process, which can also shorten the processing time, enhance the continuity of the process, and ensure the stability of the powder processing volume.

[0013] Preferably, the heat sink is provided with a weighing unit, which is attached to the bottom of the powder grinding bowl. Through the above improvements, the weighing unit can monitor the weight of the powder in the powder grinding bowl in real time, accurately control the amount of powder to be ground, avoid excessive or insufficient raw materials, ensure the accuracy of the ratio, and facilitate real-time control of the powder grinding process, thereby improving the accuracy and efficiency of solid-state battery raw material processing.

[0014] Preferably, the bowl lid has an input hole for introducing inert gas, and a pressure sensor is provided on the bowl lid. Through the above improvements, the inert gas introduced through the input hole can isolate air, allowing gas atoms to adhere to the powder surface. This not only improves chemical properties but also prevents the powder from oxidizing and deteriorating. The pressure sensor monitors the pressure inside the chamber in real time, avoiding gas leakage or powder splashing caused by abnormal pressure, ensuring a stable grinding environment, and improving the purity of raw materials and the safety of processing.

[0015] Preferably, a rotating seat is provided on the bowl body, the bottom of the rotating seat is engaged with the output end of the drive motor, and a floating joint is connected to the rotating seat. The floating joint is connected to the pulverizing blade. Through the above improvements, the drive motor connects to the pulverizing blade through the floating joint to form an adaptive tilt angle, which can adjust the blade posture according to the distribution of powder, increase the pulverizing contact range, avoid dead corner residue, make the powder be pulverized more evenly and fully, improve the fineness and consistency of pulverization, and ensure the pulverization quality of solid-state battery raw materials.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: By detachably mounting the pulverizing component on the drive unit, the convenience of powder discharge is improved. Furthermore, by using a cooling component to cool the drive unit and the pulverizing component, not only is the lifespan of the drive unit extended, but overheating of the pulverizing component also prevents it from affecting the electrochemical performance of the solid-state battery powder. The drive unit includes a housing and a drive motor housed within the housing, with the motor's output end extending out of the housing. The pulverizing component includes a pulverizing bowl and pulverizing blades housed within the bowl. The pulverizing bowl and blades are made of ceramic material. The pulverizing bowl includes a bowl body and a lid covering the bowl body. An electromagnet is installed at the bottom of the lid to adsorb metallic impurities. Compared to traditional metal pulverizing bowls and blades, the use of ceramic material prevents them from affecting the chemical properties of the solid-state battery raw materials during the pulverizing process. Simultaneously, the electromagnet can adsorb other metallic impurities mixed in with the coarse powder, thus improving powder quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the connection between the drive seat and the pulverizing blade of the present invention; Figure 4 This is a schematic diagram of the structure of the bowl lid of the present invention; Figure 5 This is a schematic diagram of the bowl body of the present invention; Figure 6 This is a schematic diagram of the structure of the heat sink of the present invention; Figure 7 This is a schematic diagram of the connection between the base and the cooling component of the present invention; Figure 8 This is a schematic diagram of the internal structure of the base of the present invention; Figure 9 This is a cross-sectional view of the cooling component and the housing of the present invention. Figure 10 This is a schematic diagram of the pressure sensor and input port structure of the present invention; In the diagram: 1. Drive base; 2. Powder grinding assembly; 3. Cooling assembly; 1.1. Housing; 1.2. Drive motor; 1.3. Powder grinding bowl; 1.4. Powder grinding blade; 1.5. Bowl body; 1.6. Bowl lid; 1.7. Electromagnet; 2.1. Exhaust unit; 2.2. First cooling pipe; 2.3. Second cooling pipe; 2.4. Heat sink; 2.5. First heat dissipation hole; 2.6. Support protrusion; 2.7. Heat dissipation channel; 2.8. Second heat dissipation hole; 3.1. Fixing structure; 3.2. Tensioner; 3.3. Fixing buckle; 3.4. Snap-fit ​​piece 3.5 Fixed groove; 4.1 Filter screen assembly; 4.2 Primary sieve filter screen; 4.3 Fine sieve filter screen; 4.4 Powder passage hole; 5.1 Vibrating ring; 5.2 Vibrating unit; 5.3 Weighing unit; 5.4 Input hole; 5.5 Pressure sensor; 6.1 Rotating seat; 6.2 Floating joint; 7.1 Housing; 7.2 Base; 7.3 Control cavity; 7.4 Heat dissipation groove; 7.5 Connecting hole; 7.6 Sound-absorbing cotton; 7.7 Fan blade; 8.1 Sealing groove; 8.2 Sealing ring; 9.1 Connecting column. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0020] Example 1 like Figure 1-9 As shown, a solid-state battery pulverizer includes a drive base 1, a pulverizing component 2 detachably mounted on the drive base 1, and a cooling component 3 for cooling the drive base 1 and the pulverizing component 2. The detachable mounting of the pulverizing component 2 on the drive base 1 improves the convenience of powder discharge. Furthermore, the cooling component 3 cools the drive base 1 and the pulverizing component 2, which not only extends the service life of the drive base 1 but also prevents the pulverizing component 2 from overheating and affecting the electrochemical performance of the solid-state battery powder.

[0021] Specifically, the drive base 1 includes a housing 1.1 and a drive motor 1.2 disposed in the housing 1.1, and the output end of the drive motor 1.2 extends out of the housing 1.1 and forms a transmission connection with the powder grinding assembly 2.

[0022] The powder grinding assembly 2 includes a grinding bowl 1.3 and a grinding blade 1.4 disposed inside the grinding bowl. The grinding bowl 1.3 and the grinding blade 1.4 are made of ceramic material. The grinding bowl 1.3 includes a bowl body 1.5 and a bowl cover 1.6 covering the bowl body 1.5. An electromagnet 1.7 for adsorbing metal impurities is provided at the bottom of the bowl cover 1.6. The grinding bowl 1.3 and the grinding blade 1.4 are made of ceramic material. Compared with traditional metal grinding bowls and grinding blades, the grinding bowl 1.3 and the grinding blade 1.4 can avoid affecting the chemical properties of solid-state battery raw materials during the grinding process. At the same time, the electromagnet 1.7 can adsorb metal impurities mixed in the coarse powder to improve the quality of the powder.

[0023] like Figure 1 , Figure 7 , Figure 9 As shown, as a further explanation of the embodiment of the cooling component 3, the cooling component 3 includes an exhaust unit 2.1, and a first cooling pipe 2.2 and a second cooling pipe 2.3 connected to the output end of the exhaust unit 2.1. The first cooling pipe 2.2 and the second cooling pipe 2.3 are installed inside the housing 1.1. The output end of the first cooling pipe 2.2 is inserted into the drive motor 1.2, and the output end of the second cooling pipe 2.3 is located at the bottom of the mixing bowl 1.3.

[0024] During the entire cooling process, the exhaust unit 2.1 first draws in air from the external environment through the exhaust pipe and discharges it through the first cooling pipe 2.2 and the second cooling pipe 2.3. The air discharged from the first cooling pipe 2.2 acts on the drive motor 1.2 to cool it down, and the air discharged from the second cooling pipe 2.3 acts on the powder mixing bowl 1.3 to rapidly cool it down.

[0025] Furthermore, a heat sink 2.4 is provided on the top of the housing 1.1, the powder mixing bowl 1.3 is placed on the heat sink 2.4, and the second cooling pipe 2.3 is inserted into the heat sink 2.4. The heat sink 2.4 has a plurality of first heat dissipation holes 2.5 and a plurality of spaced support protrusions 2.6. The support protrusions 2.6 form a heat dissipation channel 2.7 connecting the first heat dissipation holes 2.5. On the one hand, airflow is delivered to the heat sink 2.4 through the second cooling pipe 2.3. The airflow is connected to the heat dissipation channel 2.7 through the first heat dissipation holes 2.5 and thus directly acts on the bottom of the powder mixing bowl 1.3, and is discharged into the external environment through the heat dissipation channel 2.7. On the other hand, the temperature of the powder mixing bowl 1.3 is conducted through the support protrusions 2.6 and exchanges heat with the heat sink 2.4 to dissipate heat from the powder mixing bowl 1.3.

[0026] In addition, the top of the housing 1.1 is provided with several second heat dissipation holes 2.8 that connect to the first heat dissipation hole 2.5. The heat of the drive motor 1.2 is discharged through the second heat dissipation holes 2.8 and discharged into the external environment through the first heat dissipation holes 2.5, thereby ensuring the heat dissipation effect on the drive motor 1.2 and the powder mixing bowl 1.3.

[0027] Preferably, the housing 1.1 includes a shell 7.1 for mounting the drive motor 1.2 and a base 7.2 disposed at the bottom of the shell 7.1. The base 7.2 has a control cavity 7.3 for mounting control elements. The top of the base 7.2 has a heat dissipation groove 7.4 communicating with the shell 7.1, and the bottom of the base 7.2 has a communicating hole 7.5. The heat in the control cavity 7.3, the heat in the drive motor 1.2, and the heat inside the shell 7.1 can also be discharged through the heat dissipation groove 7.4 and the communicating hole 7.5, further improving the heat dissipation effect inside the shell 7.1.

[0028] Preferably, the outer casing 7.1 is provided with sound-absorbing cotton 7.6, and the first cooling pipe 2.2 and the second cooling pipe 2.3 are inserted inside the sound-absorbing cotton 7.6. The sound-absorbing cotton 7.6 can not only absorb the sound emitted by the drive motor 1.2 and improve the noise reduction effect, but also improve the stability and reliability of the installation of the first cooling pipe 2.2 and the second cooling pipe 2.3.

[0029] Preferably, the output shaft of the drive motor 1.2 is provided with fan blades 7.7, which further improves the heat dissipation effect inside the housing 7.1. The air outlet direction of the fan blades 7.7 is towards the inside of the drive motor 1.2, thereby guiding the cold air into the control cavity 7.3 and discharging it towards the heat sink 2.4. The heat is discharged through the heat dissipation channel 2.7.

[0030] like Figure 4 , Figure 6 As shown, further explanation regarding the installation and disassembly of the powder grinding component 2 is provided on the heat sink 2.4, which includes a number of tension buckles 3.2 spaced apart on the outer periphery of the heat sink 2.4, a fixing buckle 3.3 on the tension buckles 3.2, and a snap-fit ​​piece 3.4 formed on the outer periphery of the bowl cover 1.6. The snap-fit ​​piece 3.4 forms a fixing groove 3.5 for the fixing buckle 3.3 to be inserted.

[0031] During the process of fixing the powder mixing bowl 1.3, the fixing buckle 3.3 can be rotated first to insert it into the fixing groove 3.5 of the snap-fit ​​piece 3.4. Then, the tightening buckle 3.2 is rotated downward to pull the snap-fit ​​piece 3.4 downward, so that the bowl lid 1.6 presses the bowl body 1.5 and fixes the bowl body 1.5 against the heat dissipation base 2.4, thus realizing the quick installation of the powder mixing bowl 1.3.

[0032] Furthermore, the tension buckle 3.2 is provided with a connecting post 9.1, and the connecting post 9.1 has a threaded adjustment hole. The fixing buckle 3.3 is threadedly connected to the threaded adjustment hole. The threaded adjustment hole can be used to cooperate with the fixing buckle 3.3 to adjust the position of the tension buckle 3.2 and the connecting post, thereby adjusting the downward tension of the snap-fit ​​piece 3.4 to ensure the reliability of fixing the powder bowl 1.3.

[0033] Preferably, a sealing groove 8.1 is formed on the bowl lid 1.6, and a sealing ring 8.2 is provided in the sealing groove 8.1. The top of the bowl body 1.5 abuts against the sealing ring 8.2, thereby improving the sealing performance during the powder grinding process.

[0034] Example 2 like Figure 2 As shown, the difference between this embodiment and Embodiment 1 is that a filter assembly 4.1 is provided inside the bowl 1.5. The filter assembly 4.1 is located below the powder-grinding blade 1.4. The filter assembly 4.1 can filter the solid-state battery raw material powder, thereby ensuring the fineness of the powder.

[0035] Specifically, the filter assembly 4.1 includes a primary filter screen 4.2 and a fine filter screen 4.3, both of which have through-holes 4.4. The aperture of the through-holes 4.4 on the primary filter screen 4.2 is larger than that on the fine filter screen 4.3. The fine filter screen 4.3 is positioned below the primary filter screen 4.2. In this layered filtration process, the primary filter screen 4.2 first intercepts large particles of impurities and prevents them from clogging the through-holes 4.4 on the fine filter screen 4.3. The fine filter screen 4.3 then performs a secondary filtration of the powder after the primary filtration, ensuring a more uniform particle size, reducing particle agglomeration, and guaranteeing the purity and fineness of the powder. This provides stable raw materials for subsequent processes and optimizes the processing effect of solid-state battery raw materials.

[0036] Furthermore, a vibration ring 5.1 is provided on the outer periphery of the bowl body 1.5, and several vibration units 5.2 are embedded on the vibration ring 5.1. The vibration units 5.2 cause the powder to fall quickly through vibration, which can prevent the powder from accumulating and clogging on the surface of the filter screen, improve the filtration efficiency, and the vibration can break up the slightly agglomerated powder, allowing more qualified particles to pass through the sieve holes, improving the powder throughput and utilization rate. In addition, the vibration accelerates the falling process, which can also shorten the processing time, enhance the continuity of the process, and ensure the stability of the powder processing volume.

[0037] Among them, the vibration units 5.2 are arranged at intervals on the vibration rings 5.1, and the vibration units 5.2 can vibrate synchronously or randomly to further improve the powder screening effect.

[0038] When discharging powder, the powder-discharging blade 1.4 can be directly disassembled and the filter assembly 4.1 removed to achieve quick powder dispensing.

[0039] Example 3 like Figure 2 , Figure 6 As shown, the difference between this embodiment and embodiment one is that a weighing unit 5.3 is provided on the heat sink 2.4. The weighing unit 5.3 abuts against the bottom of the powder mixing bowl 1.3. The weighing units 5.3 are evenly spaced on the heat sink 2.4 and supported on the bottom of the powder mixing bowl 1.3.

[0040] During the powder grinding process, the weighing unit 5.3 monitors the weight of the powder in the grinding bowl 1.3 in real time, accurately controls the amount of powder to avoid excessive or insufficient raw materials, ensures the accuracy of the ratio, and facilitates real-time control of the powder grinding process, thereby improving the accuracy and efficiency of solid-state battery raw material processing.

[0041] Example 4 like Figure 10 As shown, the difference between this embodiment and Embodiment 1 is that the bowl lid 1.6 is provided with an input hole 5.4 for inputting inert gas, and a pressure sensor 5.5 is provided on the bowl lid 1.6.

[0042] During grinding, inert gas can be introduced into the grinding bowl 1.3 through the inlet 5.4. The inert gas can not only isolate the air, but also make the powder surface adhere to gas atoms, which can not only improve the chemical properties of the powder, but also prevent the powder from oxidizing and deteriorating. The pressure sensor 5.5 is used to monitor the pressure in the chamber in real time to avoid abnormal pressure leading to gas leakage or powder splashing, ensuring a stable grinding environment and improving the purity of raw materials and processing safety.

[0043] Example 5 like Figure 2 , Figure 3 As shown, the difference between this embodiment and Embodiment 1 is that a rotating seat 6.1 is mounted on the bowl 1.5. The bottom of the rotating seat 6.1 is engaged with the output end of the drive motor 1.2, and a floating connector 6.2 is connected to the rotating seat 6.1. The floating connector 6.2 is connected to the pulverizing blade 1.4. The drive motor 1.2 is connected to the pulverizing blade 1.4 through the floating connector 6.2 to form an adaptive tilt angle. The blade posture can be adjusted according to the distribution of powder, increasing the pulverizing contact range, avoiding dead corner residue, making the powder more evenly and fully pulverized, improving the fineness and consistency of pulverization, and ensuring the pulverization quality of solid-state battery raw materials.

[0044] Furthermore, an anti-collision gap is formed between the powder-grinding blade 1.4 and the filter screen assembly 4.1, and the anti-collision gap is greater than the vertical swing distance of the powder-grinding blade 1.4 to avoid damage to the filter screen assembly 4.1 caused by the powder-grinding blade 1.4.

[0045] Furthermore, the floating joint 6.2 is existing technology. A floating joint is a device that compensates for alignment errors and vibrations in mechanical connections through a flexible structure. It mainly consists of a ball head, a ball seat, elastic elements (such as springs or rubber), and sliding components. Its core principle is to use spherical oscillation or axial sliding to achieve multi-degree-of-freedom displacement compensation (such as radial, axial, or angular offset). At the same time, it absorbs vibrations and automatically resets through elastic elements. This design can transmit force or motion within the allowable range, significantly reduce assembly accuracy requirements, and avoid stress concentration caused by rigid connections. Floating joints are widely used in automated equipment, transmission systems, and precision instruments, effectively extending component life, reducing vibration transmission, and adapting to thermal deformation or dynamic load changes. They are key components for improving the reliability and accuracy of mechanical systems.

[0046] In addition, Examples 1 to 5 can be implemented individually or all of them can be integrated for implementation.

[0047] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A solid-state battery pulverizer, characterized in that, It includes a drive base (1), a powder grinding assembly (2) detachably mounted on the drive base (1), and a cooling assembly (3) for cooling the drive base (1) and the powder grinding assembly (2); The drive base (1) includes a housing (1.1) and a drive motor (1.2) disposed inside the housing (1.1), and the output end of the drive motor (1.2) extends out of the housing (1.1); The powder grinding assembly (2) includes a powder grinding bowl (1.3) and a powder grinding blade (1.4) disposed inside the powder grinding bowl (1.3). The powder grinding bowl (1.3) and the powder grinding blade (1.4) are made of ceramic material. The powder grinding bowl (1.3) includes a bowl body (1.5) and a bowl cover (1.6) covering the bowl body (1.5). An electromagnet (1.7) for adsorbing metal impurities is provided at the bottom of the bowl cover (1.6). The cooling component (3) includes an exhaust unit (2.1), and a first cooling pipe (2.2) and a second cooling pipe (2.3) connected to the output end of the exhaust unit (2.1). The first cooling pipe (2.2) and the second cooling pipe (2.3) are installed inside the housing (1.1). The output end of the first cooling pipe (2.2) is inserted into the drive motor (1.2), and the output end of the second cooling pipe (2.3) is located at the bottom of the mixing bowl (1.3).

2. The solid-state battery pulverizer according to claim 1, characterized in that: The top of the housing (1.1) is provided with a heat sink (2.4), the powder grinding bowl (1.3) is disposed on the heat sink (2.4), and the second cooling tube (2.3) is inserted into the heat sink (2.4). The heat sink (2.4) is provided with a plurality of first heat dissipation holes (2.5), and the heat sink (2.4) is provided with a plurality of spaced support protrusions (2.6). The support protrusions (2.6) form a heat dissipation channel (2.7) connecting the first heat dissipation holes (2.5), and the top of the housing (1.1) is provided with a plurality of second heat dissipation holes (2.8) connecting the first heat dissipation holes (2.5).

3. A solid-state battery pulverizer according to claim 2, characterized in that: The heat sink (2.4) is provided with a fixing structure (3.1). The fixing structure (3.1) includes a plurality of tension buckles (3.2) spaced apart on the outer periphery of the heat sink (2.4), a fixing buckle (3.3) on the tension buckle (3.2), and a snap-fit ​​piece (3.4) formed on the outer periphery of the bowl lid (1.6). The snap-fit ​​piece (3.4) forms a fixing groove (3.5) for the fixing buckle (3.3) to be inserted. The fixing buckle (3.3) is inserted into the fixing groove (3.5) and pulls the snap-fit ​​piece (3.4) downward as the tension buckle (3.2) rotates, so that the powder mixing bowl (1.3) abuts and is fixed on the heat sink (2.4).

4. A solid-state battery pulverizer according to claim 1, characterized in that: A sealing groove (8.1) is formed on the bowl lid (1.6), and a sealing ring (8.2) is provided in the sealing groove (8.1), and the top of the bowl body (1.5) abuts against the sealing ring (8.2).

5. A solid-state battery pulverizer according to claim 1, characterized in that: A filter assembly (4.1) is provided inside the bowl body (1.5), and the filter assembly (4.1) is located below the pulverizing blade (1.4).

6. A solid-state battery pulverizer according to claim 5, characterized in that: The filter assembly (4.1) includes a primary filter screen (4.2) and a fine filter screen (4.3), and the primary filter screen (4.2) and the fine filter screen (4.3) are provided with passing-through holes (4.4). The aperture of the passing-through holes (4.4) on the primary filter screen (4.2) is larger than the aperture of the passing-through holes (4.4) on the fine filter screen (4.3). The fine filter screen (4.3) is disposed below the primary filter screen (4.2).

7. A solid-state battery pulverizer according to claim 1, characterized in that: The outer periphery of the bowl (1.5) is provided with a vibration ring (5.1), and a plurality of vibration units (5.2) are embedded on the vibration ring (5.1).

8. A solid-state battery pulverizer according to claim 3, characterized in that: A weighing unit (5.3) is provided on the heat sink (2.4), and the weighing unit (5.3) abuts against the bottom of the powder mixing bowl (1.3).

9. A solid-state battery pulverizer according to claim 1, characterized in that: The bowl cover (1.6) has an inlet hole (5.4) for introducing inert gas, and a pressure sensor (5.5) is provided on the bowl cover (1.6).

10. A solid-state battery pulverizer according to claim 1, characterized in that: A rotating seat (6.1) is mounted on the bowl body (1.5). The bottom of the rotating seat (6.1) is engaged with the output end of the drive motor (1.2). A floating connector (6.2) is connected to the rotating seat (6.1). The floating connector (6.2) is connected to the powder-grinding blade (1.4).

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