Battery negative pressure formation vacuum mechanism

Abstract

The utility model provides a battery negative pressure formation vacuum mechanism which comprises a rack, a plurality of negative pressure absorption containers, a plurality of suction nozzles, a plurality of electromagnetic valves, a plurality of pressure sensors and a PLC (Programmable Logic Controller), the plurality of negative pressure absorption containers are fixed on the rack side by side, the plurality of suction nozzles are arranged at the bottom of the rack and are in one-to-one correspondence with the negative pressure absorption containers, and the electromagnetic valves are arranged on the suction nozzles. The suction nozzles are sequentially connected with the electromagnetic valves and the corresponding negative pressure absorption containers through pipelines, the pressure sensors are installed on the pipelines, and the electromagnetic valves and the pressure sensors are electrically connected with the PLC. The vacuum pump enables the negative pressure absorption container to generate negative pressure, the negative pressure absorption container is matched with the suction nozzles to absorb electrolyte of the battery cells, if air leakage happens to individual battery cells in the battery, signals received by the pressure sensors connected with the corresponding suction nozzles change greatly, the PLC drives the corresponding electromagnetic valves to be closed, and the battery cells are discharged. Therefore, the negative pressure formation of other battery cells into vacuum is not influenced, the performance and the stability of the battery are improved, and an energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of battery production equipment, and particularly relates to a battery negative pressure formation vacuum mechanism. Background Art

[0002] The negative pressure formation vacuum of a battery is an important technology in the battery manufacturing process. It improves the performance and stability of the battery by creating a negative pressure environment inside the battery. The realization of this technology requires the use of equipment such as a vacuum pump to evacuate the battery, and the internal pressure of the battery can be precisely adjusted by controlling the charging and discharging of gas. Currently, during the process of negative pressure formation vacuum for a battery by traditional equipment, usually a vacuum pump with a large suction force is used to extract the electrolyte of each battery cell, and it will continue to work even in the case of leakage of some suction cups. The vacuum leakage will consume more energy. A slight air leakage process can continue under such an imperfect vacuum degree, but in the case of continuous air leakage, the minimum requirement of the vacuum degree cannot be achieved, and the entire equipment needs to be stopped as a whole, which will affect the performance and stability of the battery. Content of the Utility Model

[0003] (I) Technical Problems to be Solved

[0004] In order to solve the above problems of the prior art, the utility model provides a battery negative pressure formation vacuum mechanism.

[0005] (II) Technical Solutions

[0006] In order to achieve the above object, the main technical solutions adopted by the utility model include:

[0007] A battery negative pressure formation vacuum mechanism includes a frame, a negative pressure absorption container, a suction nozzle, a solenoid valve, a pressure sensor, and a PLC controller;

[0008] A plurality of the negative pressure absorption containers are provided and are fixedly arranged side by side on the frame;

[0009] A plurality of the suction nozzles are provided, are installed at the bottom of the frame, and correspond to the negative pressure absorption containers one by one. The suction nozzles are sequentially connected to the solenoid valve and the corresponding negative pressure absorption containers through pipelines;

[0010] The pressure sensor is installed on the pipeline;

[0011] Both the solenoid valve and the pressure sensor are electrically connected to the PLC controller.

[0012] Preferably, the frame has a U-shaped structure. The negative pressure absorption container is installed inside the inner cavity of the frame. The pipeline is installed at the bottom of the frame. The solenoid valve is arranged at the top of the frame.

[0013] Preferably, it further includes a warning light, wherein a plurality of warning lights are provided and correspond one to one with the solenoid valves, and the warning lights are electrically connected to the PLC controller.

[0014] Preferably, a slide rail is provided at the bottom of the frame, and a plurality of sliders are slidably installed in the slide rail, and the plurality of sliders correspond one-to-one to the suction nozzles. An L-shaped plate is provided on one side of the suction nozzle, and the L-shaped plate is fixedly connected to the slide rail by a screw.

[0015] Preferably, a through pipe communicating with the suction nozzle is provided on one side thereof, and the through pipe is connected to the solenoid valve via a hose.

[0016] Preferably, the negative pressure absorption container is threadedly connected to the frame.

[0017] (3) Beneficial effects

[0018] The beneficial effect of the present utility model is that: by adopting the above technical solution, the suction nozzle at the bottom of the rack corresponds to the liquid filling port of each battery cell, the vacuum pump causes the negative pressure absorption container to generate negative pressure, and cooperates with the suction nozzle to absorb the electrolyte of the battery cell. If individual batteries in the battery leak, the signal received by the pressure sensor connected to the corresponding suction nozzle will change significantly, and the PLC controller will drive the corresponding solenoid valve to close, so as not to affect the negative pressure of other batteries to become vacuum, thereby improving the performance and stability of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a battery negative pressure vacuum mechanism;

[0020] Figure 2 This is a schematic diagram of the main structure of a battery negative pressure vacuum mechanism;

[0021] Figure 3 This is a schematic diagram of the slide rail installation structure;

[0022] Figure 4 This is a circuit structure diagram of the utility model.

[0023] Description of reference numerals:

[0024] 1. Frame;

[0025] 2. Suction nozzle;

[0026] 3. Negative pressure absorption container;

[0027] 4. Solenoid valve;

[0028] 5. Slide rail;

[0029] 6. Slider;

[0030] 7. L-shaped board;

[0031] 8. Screw rod Specific implementation manner

[0032] For better explaining the present utility model for easy understanding, the present utility model will be described in detail below in conjunction with the accompanying drawings through specific implementation manners.

[0033] Please refer to Figures 1 to 4 , the present utility model provides a battery negative pressure formation vacuum mechanism, including a frame 1, a negative pressure absorption container 3, a suction nozzle 2, a solenoid valve 4, a pressure sensor and a PLC controller;

[0034] A plurality of negative pressure absorption containers 3 are provided and are fixedly arranged side by side on the frame 1;[[ID=1,6]]

[0035] A plurality of suction nozzles 2 are provided, installed at the bottom of the frame 1 and corresponding to the negative pressure absorption containers 3 one by one. The suction nozzles 2 are sequentially connected to the solenoid valve 4 and the corresponding negative pressure absorption containers 3 through pipelines;

[0036] The pressure sensor is installed on the pipeline;

[0037] Both the solenoid valve 4 and the pressure sensor are electrically connected to the PLC controller;

[0038] During use, the suction nozzles 2 at the bottom of the frame 1 correspond to the liquid injection ports of each battery cell. The vacuum pump makes the negative pressure absorption container 3 generate negative pressure, and cooperates with the suction nozzles 2 to absorb the electrolyte of the battery cells. If there is a phenomenon of air leakage in individual battery cells, the signal received by the pressure sensor connected to the corresponding suction nozzle 2 changes greatly. The PLC controller drives the corresponding solenoid valve 4 to close, so as not to affect the negative pressure formation vacuum of other battery cells, thereby improving the performance and stability of the battery.

[0039] In this embodiment, the frame 1 has a C-shaped structure. The negative pressure absorption container 3 is installed inside the cavity of the frame 1, the pipeline is installed at the bottom of the frame 1, and the solenoid valve 4 is arranged at the top of the frame 1.

[0040] In this embodiment, it further includes warning lights. A plurality of warning lights are provided and correspond to the solenoid valves 4 one by one. The warning lights are electrically connected to the PLC controller to indicate the specific position of air leakage of the battery cells through the warning lights.

[0041] Refer to Figure 3 , in this embodiment, a slide rail 5 is provided at the bottom of the frame 1. A plurality of sliders 6 are slidably installed in the slide rail 5 and correspond to the suction nozzles 2 one by one. An L-shaped plate 7 is arranged on one side of the suction nozzle 2, and the L-shaped plate 7 is fixedly connected to the slide rail 5 through a screw rod 8;

[0042] During use, after driving the suction nozzle 2 to move to an ideal position by sliding the slider 6, the position of the suction nozzle 2 is adjusted by tightening the screw rod 8.

[0043] In this embodiment, a through pipe communicating with the suction nozzle 2 is provided on one side thereof, and the through pipe is connected to the solenoid valve 4 via a hose.

[0044] In this embodiment, the negative pressure absorption container 3 is threadedly connected to the frame 1 .

[0045] The working principle of this utility model is as follows:

[0046] The suction nozzle 2 at the bottom of the rack 1 corresponds to the liquid filling port of each battery cell. The vacuum pump generates negative pressure in the negative pressure absorption container 3, and cooperates with the suction nozzle 2 to absorb the electrolyte of the battery cell. If individual cells in the battery leak, the signal received by the pressure sensor connected to the corresponding suction nozzle 2 will change significantly, and the PLC controller will drive the corresponding solenoid valve 4 to close, so as not to affect the negative pressure of other cells into vacuum, thereby improving the performance and stability of the battery.

[0047] The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0048] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0049] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A battery negative pressure vacuum mechanism, characterized in that: It includes a frame, a negative pressure absorption container, a suction nozzle, a solenoid valve, a pressure sensor and a PLC controller; A plurality of the negative pressure absorption containers are provided and are fixedly arranged side by side on the frame; A plurality of the suction nozzles are provided, are installed at the bottom of the frame and correspond to the negative pressure absorption containers one by one. The suction nozzles are sequentially connected to the solenoid valve and the corresponding negative pressure absorption containers through pipelines; The pressure sensor is installed on the pipeline; Both the solenoid valve and the pressure sensor are electrically connected to the PLC controller.

2. A battery negative pressure vacuum mechanism according to claim 1, characterized in that: The frame is in a U-shaped structure. The negative pressure absorption container is installed inside the cavity of the frame. The pipeline is installed at the bottom of the frame. The solenoid valve is arranged at the top of the frame.

3. A battery negative pressure vacuum mechanism according to claim 1, characterized in that: It further includes warning lights. A plurality of the warning lights are provided and correspond to the solenoid valves one by one. The warning lights are electrically connected to the PLC controller.

4. A battery negative pressure vacuum mechanism according to claim 1, characterized in that: Sliding rails are arranged at the bottom of the frame. A plurality of sliders are slidably installed in the sliding rails and correspond to the suction nozzles one by one. An L-shaped plate is arranged on one side of the suction nozzle. The L-shaped plate is fixedly connected to the sliding rail through a screw.

5. A battery negative pressure vacuum mechanism according to claim 1, characterized in that: A through pipe communicated with the suction nozzle is arranged on one side of the suction nozzle. The through pipe is connected to the solenoid valve through a hose.

6. A battery negative pressure vacuum mechanism according to claim 1, characterized in that: The negative pressure absorption container is threadedly connected to the frame.

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