Vacuum hot press for solid-state battery materials

Abstract

The utility model relates to a kind of vacuum hot presses for solid-state battery material, including vacuum chamber, workbench is arranged in vacuum chamber, the opposite sides of the bottom end of vacuum chamber are uniformly provided with airtight module;The top of vacuum chamber is provided with pressurizing module, pressurizing module includes drive unit and pressure rod, the bottom end of pressure rod is screw surface, the inner top of vacuum chamber is fixedly installed with baffle, the center position of baffle is provided with the threaded hole that is mutually cooperated with the bottom end of pressure rod;By adopting the above technical scheme, threaded hole has better sealing performance, the connection mode of pressure rod through threaded hole, so that the inside of the working area in the bottom end inside vacuum chamber is not communicated with the area above baffle, then set an oil seal in the position of pressure rod passing through the top of vacuum chamber, so that sealing is more compact, so drive unit can be set on the outside of vacuum chamber, avoid when working, the internal pressure of vacuum chamber makes the problem of abnormal work of drive unit.

Description

Technical Field

[0001] This utility model relates to the field of hot press technology, and in particular to a vacuum hot press for solid-state battery materials. Background Technology

[0002] In the research and development and preparation of solid-state battery materials, vacuum hot pressing technology is a key process for achieving material densification and improving electrochemical performance.

[0003] Currently, traditional vacuum hot presses typically place the drive unit inside the vacuum chamber. During operation, the high-pressure environment inside the chamber can easily interfere with the drive unit, affecting its control accuracy and operational stability, and even leading to equipment failure. At the same time, the dynamic sealing between the pressure rod and the chamber has always been a technical challenge. Conventional sealing methods are prone to leakage under long-term high-temperature and high-pressure conditions, making it difficult to maintain a high vacuum level inside the chamber, thus affecting the sintering quality and consistency of solid-state battery materials. Therefore, it is necessary to design a vacuum hot press for solid-state battery materials. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum hot press for solid-state battery materials to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A vacuum hot press for solid-state battery materials includes a vacuum chamber. A worktable is fixedly installed at the middle of the bottom of the vacuum chamber. Sealing modules are provided on opposite sides of the bottom of the vacuum chamber. The sealing modules are used to seal the inlet and outlet of the vacuum chamber. A pressurizing module is fixedly installed at the top of the vacuum chamber. The pressurizing module includes a drive unit and a pressure rod. The pressure rod passes through the top of the vacuum chamber and extends into the interior of the vacuum chamber. The drive unit is used to drive the pressure rod to move up and down. The bottom end of the pressure rod is a threaded surface. A partition is fixedly installed at the top of the vacuum chamber. A threaded hole that mates with the bottom end of the pressure rod is provided at the center of the partition.

[0006] By adopting the above technical solution, the threaded hole has good sealing performance. The connection method of the pressure rod through the threaded hole makes the internal working area at the bottom of the vacuum chamber not connected with the area above the partition. Then, an oil seal is set at the position where the pressure rod passes through the top of the vacuum chamber to make the seal tighter. In this way, the drive unit can be set on the outside of the vacuum chamber, avoiding the problem of abnormal operation of the drive unit caused by the internal pressure of the vacuum chamber during operation.

[0007] In a further embodiment, a support frame is fixedly installed at the bottom of the vacuum chamber, a return spring is fixedly installed at the top of the support frame, a support plate is fixedly installed at the top of the return spring, and a through hole is provided at the center of the top of the support plate. A round rod is inserted into the through hole from top to bottom, and the round rod can slide up and down relative to the support plate.

[0008] In a further embodiment, guide posts are fixedly installed at the four bottom corners of the tray, and guide sleeves that cooperate with the guide posts are provided at the four top corners of the support frame. The reset spring is used to move the tray upward, and the bottom of the pressure rod is in contact with the top of the round bar.

[0009] By adopting the above technical solution, the round bar can be moved up and down by the pressure rod, and only the round bar needs to be replaced when it is needed.

[0010] In a further embodiment, the top periphery of the round bar is provided with centrifugal protrusions.

[0011] By adopting the above technical solution, the complete fall of the round bar can be avoided.

[0012] In a further embodiment, an electric heating element is embedded inside the workbench, which is used to heat the workbench.

[0013] By adopting the above technical solution, the required temperature can be maintained during compression.

[0014] In a further embodiment, the power unit consists of a motor and a speed reducer.

[0015] By adopting the above technical solution, the hot pressing of battery materials does not require very high pressure, mainly a vacuum environment and temperature. Therefore, the combination of a high-power motor and a reducer is sufficient to meet the set requirements.

[0016] In summary, this utility model has the following beneficial effects: 1. The threaded hole provides good sealing performance. The connection method of the pressure rod through the threaded hole prevents the internal working area at the bottom of the vacuum chamber from communicating with the area above the partition. Then, an oil seal is set at the position where the pressure rod passes through the top of the vacuum chamber to make the seal tighter. In this way, the drive unit can be set on the outside of the vacuum chamber, avoiding the problem of abnormal operation of the drive unit due to the internal pressure of the vacuum chamber during operation. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of the present invention, used to illustrate the structure of the server equipment monitoring system; Figure 2 This is a schematic diagram illustrating the internal structure of the vacuum chamber of this utility model.

[0018] In the diagram, 1 is the vacuum chamber; 2 is the worktable; 3 is the pressurization module; 31 is the drive unit; 32 is the pressure rod; and 4 is the partition. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0021] Example 1: like Figures 1-2 As shown, a vacuum hot press for solid-state battery materials includes a vacuum chamber 1. A worktable 2 is fixedly installed at the middle of the bottom of the vacuum chamber 1. Sealing modules are provided on both sides of the bottom of the vacuum chamber 1. The sealing modules are used to seal the inlet and outlet of the vacuum chamber 1. A pressurizing module 3 is fixedly installed on the top of the vacuum chamber 1. The pressurizing module 3 includes a drive unit 31 and a pressure rod 32. The pressure rod 32 passes through the top of the vacuum chamber 1 and extends into the interior of the vacuum chamber 1. The drive unit 31 is used to drive the pressure rod 32 to move up and down. The bottom end of the pressure rod 32 is a threaded surface. A partition 4 is fixedly installed on the top of the vacuum chamber 1. A threaded hole that mates with the bottom end of the pressure rod 32 is provided at the center of the partition 4. A support frame is fixedly installed at the bottom of the vacuum chamber 1. A return spring is fixedly installed at the top of the support frame. A support plate is fixedly installed at the top of the return spring. A through hole is provided at the center of the top of the support plate. A round rod is inserted into the through hole from top to bottom. The round rod can slide up and down relative to the support plate. Guide posts are fixedly installed at the four corners of the bottom of the support plate. Guide sleeves that cooperate with the guide posts are provided at the four corners of the top of the support frame. The return spring is used to move the support plate upward. The bottom of the pressure rod 32 is in contact with the top of the round rod. Centrifugal protrusions are provided on the periphery of the top of the round rod. An electric heating tube is embedded inside the worktable 2. The electric heating tube is used to heat the worktable 2. The drive unit 31 is a power group consisting of a motor and a reducer.

[0022] Specific implementation process: The threaded hole has good sealing performance. The connection method of the pressure rod through the threaded hole is to prevent the internal working area at the bottom of the vacuum chamber from being connected to the area above the partition. Then, an oil seal is set at the position where the pressure rod passes through the top of the vacuum chamber to make the seal tighter. In this way, the drive unit can be set on the outside of the vacuum chamber, avoiding the problem of abnormal operation of the drive unit caused by the internal pressure of the vacuum chamber during operation.

[0023] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0024] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A vacuum hot press for solid-state battery materials, characterized in that: The system includes a vacuum chamber (1), a workbench (2) is fixedly installed at the middle of the bottom of the vacuum chamber (1), and sealing modules are provided on both sides of the bottom of the vacuum chamber (1). The sealing modules are used to seal the inlet and outlet of the vacuum chamber (1). A pressurizing module (3) is fixedly installed on the top of the vacuum chamber (1). The pressurizing module (3) includes a drive unit (31) and a pressure rod (32). The pressure rod (32) passes through the top of the vacuum chamber (1) and extends into the interior of the vacuum chamber (1). The drive unit (31) is used to drive the pressure rod (32) to move up and down. The bottom end of the pressure rod (32) is a threaded surface. A partition (4) is fixedly installed on the top of the vacuum chamber (1). A threaded hole that cooperates with the bottom end of the pressure rod (32) is provided at the center of the partition (4).

2. The vacuum hot press for solid-state battery materials according to claim 1, characterized in that: A support frame is fixedly installed at the bottom of the vacuum chamber (1), a return spring is fixedly installed at the top of the support frame, a support plate is fixedly installed at the top of the return spring, and a through hole is provided at the center of the top of the support plate. A round rod is inserted into the through hole from top to bottom, and the round rod can slide up and down relative to the support plate.

3. The vacuum hot press for solid-state battery materials according to claim 2, characterized in that: The bottom four corners of the pallet are fixedly installed with guide posts, and the top four corners of the support frame are provided with guide sleeves that cooperate with the guide posts. The reset spring is used to move the pallet upward. The bottom of the pressure rod (32) is in contact with the top of the round bar.

4. A vacuum hot press for solid-state battery materials according to claim 2, characterized in that: The top periphery of the round bar is provided with centrifugal protrusions.

5. A vacuum hot press for solid-state battery materials according to claim 1, characterized in that: The workbench (2) is equipped with an electric heating tube, which is used to heat the workbench (2).

6. A vacuum hot press for solid-state battery materials according to claim 1, characterized in that: The drive unit (31) is a power unit consisting of a motor and a reducer.

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