Battery cell vacuum packaging mechanism for lithium battery production line

Abstract

The utility model relates to the technical field of lithium batteries, and discloses a lithium battery production line battery cell vacuum packaging mechanism, which comprises a vacuum standing mechanism for carrying out primary vacuumizing treatment and standing treatment on a battery cell; the vacuum packaging mechanism is used for carrying out secondary vacuumizing treatment and packaging treatment on the battery cell treated by the vacuum standing mechanism; the turntable mechanism is used for bearing the battery cells and sequentially transporting the battery cells to the vacuum standing mechanism and the vacuum packaging mechanism for treatment; the vacuum standing module is used for carrying out first vacuum treatment and standing treatment on the battery cell; gas and impurities in the battery cell can be effectively removed under a vacuum condition; the vacuum packaging module is used for carrying out secondary vacuum treatment and packaging treatment on the battery cell treated by the vacuum standing module; the quality and the performance of the battery cell during packaging are ensured; and the turntable mechanism is responsible for bearing the battery cells and sequentially transporting the battery cells to the vacuum standing module and the vacuum packaging module for processing.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and in particular to a vacuum packaging mechanism for battery cells in a lithium battery production line. Background Art

[0002] Lithium battery is a battery with lithium metal or lithium ion as electrode material, which is widely used in various portable electronic devices, electric vehicles, energy storage systems and other fields; it consists of positive electrode, negative electrode, electrolyte and separator;

[0003] Lithium battery packaging refers to the process of packaging its internal components such as positive electrode, negative electrode, electrolyte and separator together to form a complete battery cell or battery pack; this process is designed to ensure the performance, safety and stability of the battery and meet the needs of various application scenarios;

[0004] The following problems exist in the market: the current lithium battery packaging mechanism generally lacks multiple vacuum processing processes, which leads to the presence of excess gas impurities in the battery cell, so the production quality of the battery cell needs to be improved;

[0005] The utility model aims to solve the technical problem of providing a battery core vacuum packaging mechanism to reduce gas impurities inside the battery core. Utility Model Content

[0006] The utility model aims to solve the technical problem of: providing a battery cell vacuum packaging mechanism to reduce gas impurities inside the battery cell; using a vacuum standing module to perform a first vacuum treatment and a standing treatment on the battery cell; under vacuum conditions, it can effectively remove gas and impurities in the battery cell to ensure the quality of subsequent packaging processes; the vacuum packaging module performs a second vacuum treatment and a packaging treatment on the battery cell that has been treated by the vacuum standing module; the quality and performance of the battery cell during packaging are ensured; the turntable mechanism is responsible for carrying the battery cell and transporting it to the vacuum standing module and the vacuum packaging module in turn for processing.

[0007] A lithium battery production line battery cell vacuum packaging mechanism, comprising:

[0008] A vacuum resting mechanism, which performs a first vacuuming process and a resting process on the battery cell;

[0009] A vacuum packaging mechanism, which performs a second vacuuming process and packaging process on the battery cell after being processed by the vacuum resting mechanism;

[0010] The turntable mechanism carries the battery cells and transports the battery cells to the vacuum standing mechanism and the vacuum packaging mechanism for processing.

[0011] Preferably, the turntable mechanism comprises a disk body driven to rotate by a driving motor; and a plurality of jigs for placing the battery cells are arranged at equal intervals around the disk body.

[0012] Preferably, the vacuum static mechanism includes: a vertically arranged static stand, a first vacuum cylinder arranged at the top of the static stand, a first vacuum box arranged below the first vacuum cylinder and connected to the piston rod of the first vacuum cylinder; and a plurality of first slides are arranged on the top of the static stand for sliding up and down with the first vacuum cylinder; and the first slide is fixedly connected and communicated with the interior of the first vacuum box; and a first vacuum outlet is arranged on the top of the first slide, and a first vacuum inlet is arranged on the bottom of the first slide; the first vacuum cylinder drives the first vacuum box to descend to cover the jig and the battery cell, and air is extracted from the outside through the first vacuum inlet to thereby create a vacuum.

[0013] Preferably, the vacuum packaging mechanism includes: a vertically arranged packaging bracket, two second vacuum cylinders symmetrically arranged on the top of the packaging bracket; and a second vacuum box is provided below the packaging bracket, and the top of the second vacuum box is connected to the piston rods of the two second vacuum cylinders; and a plurality of second slides are provided on the top of the packaging bracket, which slide up and down with each other; and the second slide is fixedly connected and communicated with the interior of the second vacuum box; and a second vacuum outlet is provided on the top of the second slide, and a second vacuum inlet is provided on the bottom of the second slide; the second vacuum cylinder drives the second vacuum box to descend to cover the jig and the battery cell, and the air is extracted from the outside through the second vacuum inlet to thereby create a vacuum.

[0014] Preferably, a first packaging cylinder and a second packaging cylinder are respectively provided on both sides of the second vacuum box; and a first hot-pressing packaging block connected to the piston rod of the first packaging cylinder and a second hot-pressing packaging block connected to the piston rod of the second packaging cylinder are provided inside the second vacuum box; the first hot-pressing packaging block and the second hot-pressing packaging block are respectively driven by the first packaging cylinder and the second packaging cylinder to fit together, thereby hot-pressing the top of the battery cell.

[0015] Preferably, an opening is formed on the top of the second vacuum box body; and a top cover for covering the opening is detachably provided; and a plurality of vertical clamps for limiting the position of the top cover are provided.

[0016] Preferably, a transparent observation window is provided on the top of the top cover.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the vacuum packaging mechanism of the battery cell of the lithium battery production line of the utility model, the vacuum standing module performs the first vacuum treatment and standing treatment on the battery cell; under vacuum conditions, it can effectively remove the gas and impurities in the battery cell, ensuring the quality of the subsequent packaging process; the vacuum packaging module performs the second vacuum treatment and packaging treatment on the battery cell treated by the vacuum standing module, ensuring the quality and performance of the battery cell during packaging; the turntable mechanism is responsible for carrying the battery cell, and transporting it to the vacuum standing module and the vacuum packaging module in turn for processing.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the structure of the vacuum static module of the utility model.

[0022] Figure 3 This utility model Figure 2 Another angle diagram of the structure.

[0023] Figure 4 It is a schematic diagram of the structure of the vacuum packaging module of the utility model.

[0024] Figure 5 This utility model Figure 4 Another angle diagram of the structure.

[0025] Figure 6 It is a schematic diagram of the structure of the first hot pressing packaging block of the utility model.

[0026] In the figure: D1, vacuum standing module; D2, vacuum packaging module; D3, turntable mechanism; D4, disk body; D5, fixture; D6, standing stand; D7, first vacuum cylinder; D8, first vacuum box; D9, first slide; D10, first exhaust outlet; D11, first exhaust inlet; D12, packaging bracket; D13, second vacuum cylinder; D14, second vacuum box; D15, second slide; D16, second exhaust outlet; D18, first packaging cylinder; D19, second packaging cylinder; D20, first hot-pressing packaging block; D21, second hot-pressing packaging block; D23, top cover; D24, vertical clamp; D25, observation window. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure.

[0029] See also Figures 1 to 6 In an embodiment of the utility model, a vacuum packaging mechanism for a lithium battery production line comprises:

[0030] The vacuum standing module D1 performs the first vacuuming and standing treatment on the battery cell;

[0031] The vacuum packaging module D2 performs a second vacuuming and packaging process on the battery cells processed by the vacuum standing module D1;

[0032] The turntable mechanism D3 carries the battery cells and transports them to the vacuum standing module D1 and the vacuum packaging module D2 for processing.

[0033] Specifically, the vacuum standing module D1 performs the first vacuum treatment and standing treatment on the battery cell; under vacuum conditions, it can effectively remove the gas and impurities in the battery cell to ensure the quality of the subsequent packaging process; the vacuum packaging module D2 performs the second vacuum treatment and packaging treatment on the battery cell treated by the vacuum standing module D1; the quality and performance of the battery cell during packaging are guaranteed; the turntable mechanism D3 is responsible for carrying the battery cell and transporting it to the vacuum standing module D1 and the vacuum packaging module D2 for processing in turn; the turntable mechanism D3 can adopt a turntable conveying system or other conveying systems suitable for battery cell processing to ensure the continuity and efficiency of the production line; wherein standing refers to maintaining a waiting period during or after the first vacuum treatment, so as to achieve the effect of standing; the main purpose of standing is to ensure that the injection liquid fully penetrates into the battery cell, so that the electrolyte in the battery cell can be evenly distributed, thereby improving the performance and stability of the battery cell; the standing process is carried out after the battery cell is injected to ensure that the electrolyte can fully penetrate into all parts of the battery cell to avoid gaps or unevenness; it can ensure that all parts of the battery cell can obtain appropriate electrolyte supply, thereby improving the charging and discharging performance and cycle life of the battery cell.

[0034] Furthermore, the turntable mechanism D3 includes a disk body D4 driven to rotate by a driving motor; and a plurality of jigs D5 for placing battery cells are arranged at equal intervals around the disk body D4.

[0035] Specifically, the driving motor is used to drive the rotation of the turntable body D4; the speed and direction can be controlled as needed; the turntable body D4 is a disc-shaped structure, which is driven to rotate by the driving motor; it is the core component of the turntable mechanism D3; a number of fixtures D5 for placing battery cells are arranged at equal intervals around the turntable body D4; these fixtures D5 can be clamps, trays or other structures suitable for fixing battery cells, which ensures the stability and safety of the battery cells when the turntable is running.

[0036] Furthermore, the vacuum standing module D1 includes: a vertically arranged standing frame D6, a first vacuum cylinder D7 arranged at the top of the standing frame D6, and a first vacuum box D8 arranged below the first vacuum cylinder D7 and connected to the piston rod of the first vacuum cylinder D7; and a plurality of first slides D9 are provided on the top of the standing frame D6 and are slidably matched with the first vacuum cylinder D7; and the first slide D9 is fixedly connected and communicated with the interior of the first vacuum box D8; and a first vacuum outlet D10 is provided on the top of the first slide D9, and a first vacuum inlet D11 is provided on the bottom of the first slide D9; the first vacuum cylinder D7 drives the first vacuum box D8 to descend to cover the fixture D5 and the battery cell, and the air is extracted from the outside through the first vacuum inlet D11 to thereby create a vacuum.

[0037] Specifically, the static stand D6 is a vertically arranged bracket for supporting and positioning the entire vacuum static module D1; the first vacuum cylinder D7 is a cylinder located at the top of the static stand D6, and is used to drive the up and down movement of the first vacuum box D8 during the vacuum treatment process; the first vacuum box D8 is a box located below the first vacuum cylinder D7, and is connected to the piston rod of the first vacuum cylinder D7; this box is used to accommodate the battery cells and perform vacuum treatment; the first slide cylinder D9 is a sliding cylinder located at the top of the static stand D6, which can slide up and down on the static stand D6 and cooperate with the top of the static stand D6; the first slide cylinder D9 is provided with a first vacuum outlet D10 at the top and a first vacuum inlet D11 at the bottom; these ports are used for the entry and exit of gas to realize the vacuum treatment process;

[0038] The first vacuum cylinder D7 drives the first vacuum box D8 to descend to cover the battery cell; the outside air is extracted through the first vacuum inlet D11 to achieve vacuum treatment; the first slide D9 slides up and down to ensure the sealing and guidance of the box; after the vacuum treatment is completed, the first vacuum cylinder D7 raises the first vacuum box D8 to complete the entire treatment process.

[0039] Furthermore, the vacuum packaging module D2 includes: a vertically arranged packaging bracket D12, two second vacuum cylinders D13 symmetrically arranged on the top of the packaging bracket D12; and a second vacuum box D14 is provided below the packaging bracket D12, and the top of the second vacuum box D14 is connected to the piston rods of the two second vacuum cylinders D13; and a plurality of second slides D15 that slide up and down with it are provided on the top of the packaging bracket D12; and the second slide D15 is fixedly connected and communicated with the interior of the second vacuum box D14; and a second vacuum outlet D16 is provided on the top of the second slide D15, and a second vacuum inlet is provided on the bottom of the second slide D15; the second vacuum cylinder D13 drives the second vacuum box D14 to descend to cover the fixture D5 and the battery cell, and the air is extracted from the outside through the second vacuum inlet to thereby create a vacuum.

[0040] Specifically, the packaging bracket D12 is a vertically arranged bracket for supporting and positioning the entire vacuum packaging module D2; the second vacuum cylinder D13 is two cylinders symmetrically arranged on the top of the packaging bracket D12, and is used to drive the action during the packaging process; the second vacuum box D14 is a box located below the packaging bracket D12, and is connected to the piston rods of the two second vacuum cylinders D13; this box is used to accommodate the battery cells and perform vacuum packaging processing; the second slide cylinder D15 is a sliding cylinder located on the top of the packaging bracket D12, which can slide up and down on the packaging bracket D12 and cooperate with the top of the packaging bracket D12; the second air extraction outlet D16 and the second air extraction inlet: the second slide cylinder D15 is provided with a second air extraction outlet D16 on the top and a second air extraction inlet on the bottom, and these ports are used for the entry and exit of gas to realize the vacuum packaging process;

[0041] The second vacuum cylinder D13 drives the second vacuum box D14 to descend and cover the battery cell; the external air is extracted through the second vacuum inlet to achieve vacuum packaging processing; the second slide cylinder D15 slides up and down to ensure the sealing and guidance of the box; after the vacuum packaging processing is completed, the second vacuum cylinder D13 raises the second vacuum box D14 to complete the entire packaging process.

[0042] Furthermore, a first packaging cylinder D18 and a second packaging cylinder D19 are respectively provided on both sides of the second vacuum box D14; and a first hot-pressing packaging block D20 connected to the piston rod of the first packaging cylinder D18 and a second hot-pressing packaging block D21 connected to the piston rod of the second packaging cylinder D19 are provided inside the second vacuum box D14; the first hot-pressing packaging block D20 and the second hot-pressing packaging block D21 are respectively driven by the first packaging cylinder D18 and the second packaging cylinder D19 to fit together, thereby performing hot-pressing packaging on the top of the battery cell.

[0043] Specifically, the first packaging cylinder D18 and the second packaging cylinder D19 are respectively arranged on both sides of the second vacuum box D14; they are used to control the movement of the first hot-pressing packaging block D20 and the second hot-pressing packaging block D21 to achieve hot-pressing packaging of the top of the battery cell; the first hot-pressing packaging block D20 and the second hot-pressing packaging block D21 are respectively connected to the piston rods of the first packaging cylinder D18 and the second packaging cylinder D19; they are located inside the second vacuum box D14, and are used to perform hot-pressing packaging on the top of the battery cell;

[0044] The first packaging cylinder D18 and the second packaging cylinder D19 respectively drive the first hot-pressing packaging block D20 and the second hot-pressing packaging block D21 to fit each other; in this way, the top of the battery cell is clamped by the two packaging blocks and is hot-pressed and packaged at a certain temperature and pressure; this process can effectively fix the top of the battery cell and ensure the stability and safety of the battery cell during use; through this mechanism, the vacuum packaging process can not only be carried out in a vacuum environment, but also the top of the battery cell can be hot-pressed and packaged, thereby improving the packaging quality and efficiency.

[0045] Furthermore, an opening is formed on the top of the second vacuum box D14, and a detachable top cover D23 for covering the opening is provided, and a plurality of vertical clamps D24 for limiting the top cover D23 are provided.

[0046] Specifically, the top of the second vacuum box D14 is open; in order to seal the box during the vacuum packaging process, a removable top cover D23 is provided on the second vacuum box D14, and the top cover D23 is used to cover the open top to ensure that the gas does not leak during the vacuum packaging process; the setting of the top cover D23 allows the top cover D23 to be disassembled, thereby facilitating the detection of the packaging effect, which is used in the initial debugging or subsequent debugging of the machine; vertical clamps D24 are installed around the second vacuum box D14 to limit and clamp the top cover D23; these vertical clamps D24 ensure that the top cover D23 is in a stable position during the packaging process to prevent it from accidentally moving and causing the vacuum packaging to fail.

[0047] Furthermore, a transparent observation window D25 is provided on the top of the top cover D23.

[0048] Specifically, a transparent observation window D25 is provided on the top of the top cover D23. The purpose of this design is to allow the operator to observe the status of the battery cell during the packaging process, ensure that the packaging process is normal, and monitor whether the packaging is complete; the transparent observation window D25 can be a transparent glass or plastic window installed on the top cover D23.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A vacuum packaging mechanism for lithium battery production line, characterized in that: include: A vacuum standing module (D1) performs the first vacuuming and standing treatment on the battery cell; A vacuum packaging module (D2) performs a second vacuuming process and packaging process on the battery cell processed by the vacuum standing module (D1); The turntable mechanism (D3) carries the battery cells and transports the battery cells to the vacuum standing module (D1) and the vacuum packaging module (D2) for processing.

2. A lithium battery production line battery cell vacuum packaging mechanism according to claim 1, characterized in that: The turntable mechanism (D3) comprises a disk body (D4) driven to rotate by a driving motor; and a plurality of jigs (D5) for placing electric cores are arranged at equal intervals around the disk body (D4).

3. A lithium battery production line battery cell vacuum packaging mechanism according to claim 2, characterized in that: The vacuum static module (D1) comprises: a vertically arranged static stand (D6), a first vacuum cylinder (D7) arranged at the top of the static stand (D6), and a first vacuum box (D8) arranged below the first vacuum cylinder (D7) and connected to the piston rod of the first vacuum cylinder (D7); and a plurality of first slides (D9) are arranged at the top of the static stand (D6) to slide up and down with the first slide; and the first slide (D9) is fixedly connected and communicated with the inside of the first vacuum box (D8); and a first air extraction outlet (D10) is arranged at the top of the first slide (D9), and a first air extraction inlet (D11) is arranged at the bottom of the first slide (D9); the first vacuum cylinder (D7) drives the first vacuum box (D8) to descend to cover the fixture (D5) and the battery cell, and air is extracted from the outside through the first air extraction inlet (D11) to create a vacuum.

4. A lithium battery production line battery cell vacuum packaging mechanism according to claim 2, characterized in that: The vacuum packaging module (D2) comprises: a packaging bracket (D12) arranged vertically, two second vacuum cylinders (D13) symmetrically arranged on the top of the packaging bracket (D12); a second vacuum box (D14) is arranged below the packaging bracket (D12), and the top of the second vacuum box (D14) is connected to the piston rods of the two second vacuum cylinders (D13); a plurality of second slides (D15) are arranged on the top of the packaging bracket (D12) and are slidably matched with the second slides (D15) up and down; and the second slides (D15) are fixedly connected and communicated with the inside of the second vacuum box (D14); a second air extraction outlet (D16) is arranged on the top of the second slide (D15), and a second air extraction inlet is arranged on the bottom of the second slide (D15); the second vacuum cylinder (D13) drives the second vacuum box (D14) to descend to cover the fixture (D5) and the battery cell, and air is extracted from the outside through the second air extraction inlet to thereby produce a vacuum.

5. A lithium battery production line battery cell vacuum packaging mechanism according to claim 4, characterized in that: A first packaging cylinder (D18) and a second packaging cylinder (D19) are respectively provided on both sides of the second vacuum box (D14); and a first hot-pressing packaging block (D20) connected to the piston rod of the first packaging cylinder (D18) and a second hot-pressing packaging block (D21) connected to the piston rod of the second packaging cylinder (D19) are provided inside the second vacuum box (D14); the first hot-pressing packaging block (D20) and the second hot-pressing packaging block (D21) are respectively driven by the first packaging cylinder (D18) and the second packaging cylinder (D19) to fit each other, thereby performing hot-pressing packaging on the top of the battery cell.

6. A lithium battery production line battery cell vacuum packaging mechanism according to claim 4, characterized in that: An opening is formed on the top of the second vacuum box (D14); a top cover (D23) for covering the opening is detachably provided; and a plurality of vertical clamps (D24) for limiting the position of the top cover (D23) are provided.

7. A lithium battery production line battery cell vacuum packaging mechanism according to claim 6, characterized in that: A transparent observation window (D25) is provided on the top of the top cover (D23).

Images