Battery negative pressure press

Abstract

The utility model relates to battery processing technical field and disclose battery negative pressure press, including casing, fixed frame and formation storehouse, the casing is wrapped and is arranged at the outside of fixed frame, the inside fixed connection of fixed frame has the connecting frame, the formation storehouse sets up below the connecting frame. The utility model provides mobile bracket through the lift of pneumatic cylinder drive, makes the formation storehouse align below the connecting frame, and negative pressure subassembly generates the negative pressure through the suction nozzle, and the battery group injection port position is adsorbed, collects and temporarily stores the electrolyte overflow in the formation process, and after the formation, the negative pressure closes, and its temporary storage electrolyte is injected back in the battery. The position of probe module installs infrared laser sensor, and the degree of pressing of current probe is controlled, and the contact of battery tab is guaranteed, improves test stability and avoids hard contact damage battery, and the battery is driven by the pneumatic cylinder and is lifted together with the battery tray, and contacts with battery tab, and the circuit in the connecting frame conducts current, realizes battery formation.

Description

Technical Field

[0001] This utility model relates to the field of battery processing technology, and in particular to a battery negative pressure press. Background Technology

[0002] Lithium-ion batteries are rechargeable batteries that work by inserting and deintercalating lithium ions between positive and negative electrodes. Due to their advantages such as high energy density, long cycle life and low self-discharge rate, they are widely used in consumer electronics, new energy vehicles, energy storage systems and other fields. Lithium-ion battery formation refers to the key process steps of charging the cell for the first time, so that the positive and negative electrode materials form a stable solid electrolyte interface film and activate the battery capacity. This process directly affects the battery's performance, life and safety.

[0003] In the existing technology, during the battery formation process, the equipment has poor compatibility with batteries of different sizes when forming batteries. The probes inside the equipment are difficult to make accurate and stable contact with the battery tabs, which will affect the formation quality of batteries of different sizes. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the prior art, when the equipment is used to form batteries without specified dimensions, the equipment has poor compatibility with batteries of different specifications, and the probes inside the equipment are difficult to make accurate and stable contact with the battery tabs, which affects the formation quality of batteries of different specifications. Therefore, a negative pressure battery press is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A battery negative pressure press includes a housing, a fixed frame, and a formation chamber. The housing is wrapped around the outside of the fixed frame. A connecting frame is fixedly connected inside the fixed frame. The formation chamber is located below the connecting frame and contains multiple battery components. Multiple negative pressure components and multiple probe modules are located at the bottom of the connecting frame. A movable bracket is located below the connecting frame, and the formation chamber is located above the movable bracket. A cylinder is fixedly connected to the bottom of the connecting frame, and a connecting seat is fixedly connected to the bottom of the movable bracket. The piston rod end of the cylinder is fixedly connected inside the connecting seat. Multiple probes are slidably arranged at the bottom of the probe modules, and multiple suction nozzles are slidably arranged at the bottom of the negative pressure components.

[0006] Preferably, a heat sink is fixedly connected to the side wall of the housing, and a plurality of rectangular heat dissipation vents are provided on the inner wall of the heat sink. A plurality of cooling fans are fixedly connected inside the connecting frame, and fixing plates are fixedly connected to both sides of the fixing frame. Heating fans are fixedly connected inside the plurality of fixing plates.

[0007] Preferably, the bottom of the connecting frame is provided with an adjustment module, the bottom inner wall of the adjustment module is provided with a sliding groove, and the adjustment module is provided with multiple linear sliders sliding on the inner wall of the sliding groove.

[0008] Preferably, a guide frame is fixedly connected to the upper surface of the movable bracket, a roller is fixedly connected to the bottom of the chemical formation chamber, the roller is rotatably disposed on the inner wall of the guide frame, a slide cylinder is fixedly connected to the upper surface of the movable bracket, a guide slide rod is fixedly connected to the bottom of the connecting frame, and the rod wall of the guide slide rod is slidably disposed on the inner wall of the slide cylinder.

[0009] Preferably, a rear baffle is fixedly connected to one side of the movable bracket, a tray plate is fixedly connected to the other side of the movable bracket, and a partition is fixedly connected to the inner wall of the fixed frame at the center.

[0010] Preferably, the bottom of the negative pressure assembly is provided with multiple temperature probes, and the outer sides of the multiple probes, nozzles and temperature probes are respectively fitted with compression springs.

[0011] Preferably, a connecting plate is fixedly connected to one side of each of the multiple negative pressure components and multiple probe modules, and the multiple connecting plates are respectively inserted into the side wall of the multiple adjustable sliders. A linear slide rail is fixedly connected to the bottom of the connecting frame, and a linear slider is fixedly connected to the top of each of the multiple negative pressure components and multiple probe modules. The multiple linear sliders are respectively slidably disposed on the inner wall of the linear slide rail.

[0012] Compared with the prior art, the present invention provides a battery negative pressure press, which has the following beneficial effects: 1. This battery negative pressure press, driven by a cylinder via a movable bracket, raises and lowers the formation chamber to align with the bottom of the connecting frame. The negative pressure component generates negative pressure through a suction nozzle, adsorbing the electrolyte at the battery's inlet and collecting and temporarily storing the electrolyte overflowing during formation. After formation, the negative pressure is closed, and the temporarily stored electrolyte is refilled into the battery. An infrared laser sensor is installed at the probe module position to control the downward pressure of the current probe, ensuring good contact with the battery tabs, improving test stability, and avoiding damage to the battery from hard contact. The battery, driven by the cylinder, is lifted upward along with the battery tray, making contact with the battery tabs. Current is conducted through the circuitry within the connecting frame to achieve battery formation.

[0013] 2. The battery negative pressure press uses heating fans on both sides to exhaust air into the housing through the fixed plate, stabilizing the temperature inside the formation chamber. The top fan is a cooling fan, which dissipates heat from the probe module to prevent heat buildup at the probe and further reduces the heat generated by the probe contact resistance. Combined with the rectangular heat dissipation vents of the heat sink, it can accelerate air circulation. At the same time, the heat sink is made of aluminum alloy, which can increase the heat dissipation area.

[0014] 3. This battery negative pressure press supports the movement of the formation chamber through the guide frame and rollers on the movable bracket, which facilitates the switching of multiple chambers and the rapid loading and unloading of the formation chamber. The guide slide and the slide cylinder work together to ensure the vertical positioning of the formation chamber and prevent deviation. The pallet plate and the rear baffle can limit and block the formation chamber placed on the movable pallet to prevent displacement during the formation process.

[0015] 4. This battery negative pressure press, through the negative pressure component and probe module, moves laterally on a linear slide rail via a linear slider, adapting to batteries of different specifications. The adjustable slider cooperates with the slide groove of the fixed frame, which can improve the stability of the negative pressure component and probe module during the adjustment process. The negative pressure component and probe module are moved and positioned through the adjustable module, which can complete the module replacement and support the switching of production lines for different battery models. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the battery negative pressure press proposed in this utility model; Figure 2 This is a rear view of the battery negative pressure press proposed in this utility model; Figure 3 This is a schematic diagram of the first internal structure of the battery negative pressure press proposed in this utility model; Figure 4 This is a schematic diagram of the second internal structure of the battery negative pressure press proposed in this utility model; Figure 5 This is a first structural schematic diagram of the formation chamber and clamping mechanism of the battery negative pressure press proposed in this utility model. Figure 6 This is a schematic diagram of the second structure of the battery negative pressure press's formation chamber and clamping mechanism proposed in this utility model. Figure 7 This is a schematic diagram of the probe module and negative pressure assembly of the battery negative pressure press proposed in this utility model. Figure 8 This is a schematic diagram showing the installation position of the infrared laser sensor in the battery negative pressure press proposed in this utility model; Figure 9 This is a schematic diagram of the internal lead screw transmission structure of the adjustable distance module of the battery negative pressure press proposed in this utility model.

[0017] In the diagram: 1. Housing, 2. Fixing frame, 3. Formation chamber, 4. Battery assembly, 5. Heat sink, 6. Connecting frame, 7. Cooling fan, 8. Fixing plate, 9. Heating fan, 10. Negative pressure assembly, 11. Probe module, 12. Adjustable distance module, 13. Adjustable distance slider, 14. Moving bracket, 15. Guide frame, 16. Roller, 17. Slide cylinder, 18. Guide slide rod, 19. Cylinder, 20. Connecting seat, 21. Rear side baffle, 22. Tray plate, 23. Partition, 24. Probe, 25. Nozzle, 26. Temperature probe, 27. Compression spring, 28. Connecting insert plate, 29. Linear slide rail, 30. Linear slider. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1-7 The battery negative pressure press includes a housing 1, a fixed frame 2, and a formation chamber 3. The housing 1 is wrapped around the outside of the fixed frame 2. A connecting frame 6 is fixedly connected inside the fixed frame 2. The formation chamber 3 is located below the connecting frame 6 and contains multiple battery components 4. Multiple negative pressure components 10 and multiple probe modules 11 are located at the bottom of the connecting frame 6. A movable bracket 14 is located below the connecting frame 6, and the formation chamber 3 is located above the movable bracket 14. A cylinder 19 is fixedly connected to the bottom of the connecting frame 6, and a connecting seat 20 is fixedly connected to the bottom of the movable bracket 14. The piston rod end of the cylinder 19 is fixedly connected inside the connecting seat 20. Multiple probes 24 are slidably arranged at the bottom of the probe module 11. Multiple suction nozzles 25 are slidably arranged at the bottom of the negative pressure component 10. Multiple temperature probes 26 are slidably arranged at the bottom of the negative pressure component 10. Compression springs 27 are respectively sleeved on the outside of the multiple probes 24, suction nozzles 25, and temperature probes 26.

[0020] A heat sink 5 is fixedly connected to the side wall of the housing 1. The inner wall of the heat sink 5 has multiple rectangular heat dissipation vents. Multiple cooling fans 7 are fixedly connected inside the connecting frame 6. Fixing plates 8 are fixedly connected to both sides of the fixing frame 2. Heating fans 9 are fixedly connected inside the multiple fixing plates 8. An adjustment module 12 is provided at the bottom of the connecting frame 6. A sliding groove is provided on the inner wall of the bottom end of the adjustment module 12. Multiple adjustment sliders 13 are slidably arranged on the inner wall of the sliding groove of the adjustment module 12.

[0021] Battery assembly 4 is placed in formation chamber 3. Formation chamber 3 is placed above mobile bracket 14. Mobile bracket 14 is driven to lift and lower by cylinder 19 so that formation chamber 3 is aligned with the bottom of connecting frame 6. Negative pressure component 10 generates negative pressure through suction nozzle 25 to adsorb the electrolyte inlet of battery assembly 4, collect and temporarily store the electrolyte that overflows during formation. After formation is completed, negative pressure is turned off and the temporarily stored electrolyte is re-injected into the battery.

[0022] like Figure 8 As shown, an infrared laser sensor is installed at the probe module position to control the downward pressure of the current probe 24, ensuring good contact with the battery tabs, improving test stability and avoiding damage to the battery from hard contact. The battery is driven by the cylinder 19 to lift up along with the battery tray, making contact with the battery tabs. Current is conducted through the circuit in the connecting frame to achieve battery formation.

[0023] Heating fan 9 exhausts air into housing 1 through fixing plate 8, and heating fans on both sides exhaust air into housing through fixing plate to stabilize the temperature inside formation chamber 3. Cooling fan 7 is installed in connecting bracket 6. Its function is to dissipate heat from probe module, prevent heat accumulation, and further reduce the heat generated by probe contact resistance. In conjunction with the rectangular heat dissipation port of heat sink 5, it can accelerate air circulation.

[0024] To ensure stable loading and unloading of materials in the formation chamber 3, and to maintain stable placement during the formation process to prevent displacement, such as... Figure 1-7 As shown, a guide frame 15 is fixedly connected to the upper surface of the movable bracket 14, a roller 16 is fixedly connected to the bottom of the formation chamber 3, the roller 16 is rotatably disposed on the inner wall of the guide frame 15, a slide cylinder 17 is fixedly connected to the upper surface of the movable bracket 14, a guide slide rod 18 is fixedly connected to the bottom of the connecting frame 6, the rod wall of the guide slide rod 18 is slidably disposed on the inner wall of the slide cylinder 17, a rear baffle 21 is fixedly connected to one side of the movable bracket 14, a tray plate 22 is fixedly connected to the other side of the movable bracket 14, and a partition 23 is fixedly connected to the inner wall of the fixed frame 2 located at the center.

[0025] The guide frame 15 and rollers 16 on the movable tray 14 support the movement of the formation chamber 3, which facilitates battery loading and unloading and allows for rapid loading and unloading of the formation chamber 3. The guide slide rod 18 and slide cylinder 17 work together to guide and ensure that the formation chamber 3 is vertically positioned to prevent displacement. The tray plate 22 and the rear baffle 21 can limit and block the formation chamber 3 placed on the movable tray 14 to prevent displacement during the formation process.

[0026] In order to adapt to different battery specifications, such as Figure 1-7 As shown, connecting plates 28 are fixedly connected to one side of multiple negative pressure components 10 and multiple probe modules 11, and the multiple connecting plates 28 are respectively inserted into the side walls of multiple adjustable sliders 13. A linear slide rail 29 is fixedly connected to the bottom of the connecting frame 6, and a linear slider 30 is fixedly connected to the top of the multiple negative pressure components 10 and multiple probe modules 11, and the multiple linear sliders 30 are respectively slidably disposed on the inner wall of the linear slide rail 29. The movement and positioning of the negative pressure components 10 and probe modules 11 are adjusted by the adjustable module 12, such as... Figure 9The module shown is driven by an internal motor. The lead screw has positive and negative leads. When the lead screw rotates, the corresponding slider on it moves in the opposite direction at the same time, thereby realizing the adjustment of motor tabs with different spacing.

[0027] The negative pressure component 10 and the probe module 11 move laterally on the linear slide rail 29 via the linear slider 30 to adapt to batteries of different specifications. The adjustable slider 13 cooperates with the slide groove of the adjustable module 12 to improve the stability of the negative pressure component 10 and the probe module 11 during the adjustment process. The negative pressure component 10 and the probe module 11 are driven and positioned by the adjustable module 12, which can complete the module replacement and support the switching of production lines for different battery models.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A battery negative pressure press, comprising a housing (1), a fixing frame (2), and a formation chamber (3), characterized in that: The housing (1) is wrapped around the outside of the fixed frame (2). A connecting frame (6) is fixedly connected inside the fixed frame (2). The formation chamber (3) is located below the connecting frame (6). Multiple battery components (4) are provided inside the formation chamber (3). Multiple negative pressure components (10) and multiple probe modules (11) are provided at the bottom of the connecting frame (6). A movable bracket (14) is provided below the connecting frame (6). The formation chamber (3) is located above the movable bracket (14). A cylinder (19) is fixedly connected to the bottom of the connecting frame (6). A connecting seat (20) is fixedly connected to the bottom of the movable bracket (14). The piston rod end of the cylinder (19) is fixedly connected inside the connecting seat (20). Multiple probes (24) are slidably provided at the bottom of the probe module (11). Multiple suction nozzles (25) are slidably provided at the bottom of the negative pressure component (10).

2. The battery negative pressure press according to claim 1, characterized in that: A heat sink plate (5) is fixedly connected to the side wall of the housing (1). The inner wall of the heat sink plate (5) is provided with multiple rectangular heat dissipation holes. Multiple cooling fans (7) are fixedly connected inside the connecting frame (6). Fixing plates (8) are fixedly connected to both sides of the fixing frame (2). Heating fans (9) are fixedly connected inside the multiple fixing plates (8).

3. The battery negative pressure press according to claim 1, characterized in that: The bottom of the connecting frame (6) is provided with an adjustment module (12), and the inner wall of the bottom end of the adjustment module (12) is provided with a sliding groove. Multiple adjustment sliders (13) are slidably provided on the inner wall of the sliding groove of the adjustment module (12).

4. The battery negative pressure press according to claim 1, characterized in that: A guide frame (15) is fixedly connected to the upper surface of the movable bracket (14), and a roller (16) is fixedly connected to the bottom of the formation chamber (3). The roller (16) is rolled on the inner wall of the guide frame (15). A slide cylinder (17) is fixedly connected to the upper surface of the movable bracket (14), and a guide slide rod (18) is fixedly connected to the bottom of the connecting frame (6). The rod wall of the guide slide rod (18) is slidably disposed on the inner wall of the slide cylinder (17).

5. The battery negative pressure press according to claim 1, characterized in that: A rear baffle (21) is fixedly connected to one side of the movable bracket (14), and a tray plate (22) is fixedly connected to the other side of the movable bracket (14). A partition (23) is fixedly connected to the inner wall of the fixed frame (2) at the center.

6. The battery negative pressure press according to claim 1, characterized in that: Multiple temperature probes (26) are slidably provided at the bottom of the negative pressure assembly (10), and compression springs (27) are respectively sleeved on the outside of the multiple probes (24), the suction nozzle (25) and the temperature probes (26).

7. The battery negative pressure press according to claim 1, characterized in that: A connecting plate (28) is fixedly connected to one side of each of the multiple negative pressure components (10) and multiple probe modules (11). The multiple connecting plates (28) are respectively inserted into the side walls of multiple adjustable sliders (13). A linear slide rail (29) is fixedly connected to the bottom of the connecting frame (6). A linear slider (30) is fixedly connected to the top of each of the multiple negative pressure components (10) and multiple probe modules (11). The multiple linear sliders (30) are respectively slidably disposed on the inner wall of the linear slide rail (29).

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