A battery formation negative pressure cup assembly with a plug

Abstract

The application provides a battery formation negative pressure cup assembly with a plug, comprising a fixing frame, a negative pressure busbar installed on the fixing frame, and a plurality of negative pressure cups installed below the fixing frame in parallel and at intervals, wherein the negative pressure cup comprises a negative pressure cup body, a suction port is arranged at the top of the negative pressure cup body, a plug corresponding to the suction port is installed below the suction port, two guide rods arranged in parallel and at intervals in the vertical direction are installed on each negative pressure cup, the top of the guide rod is connected with the fixing frame, the bottom of the guide rod extends into the negative pressure cup body after penetrating through the negative pressure cup body, the guide rod and the plug are connected through a connecting rod, and the suction port at the top of the negative pressure cup body and the negative pressure busbar are connected through a hose. The negative pressure cup assembly has a simple structure and a clever design, can accurately identify the empty channel of a battery tray without using an electric control, and can separately close the negative pressure air path of the empty channel during formation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery production, in particular to a battery formation negative pressure cup assembly with a plug. BACKGROUND

[0002] With the vigorous development of new energy vehicles, higher requirements are put forward for the endurance mileage, safety and charging speed of new energy vehicles. In order to improve the endurance mileage of the vehicle, it is necessary to improve the energy density of the power battery. In order to improve the energy density of the battery, some battery manufacturers have developed high energy density battery formulations. High energy density batteries produce a large amount of gas during the battery formation production process. If the gas is not discharged in time, it is easy to cause the battery shell to expand, affecting the appearance and performance of the battery. In order to discharge gas during the formation process, a negative pressure module is used to perform negative pressure gas extraction on the battery liquid injection port. However, in actual production, the situation shown in the figure may occur. After the NG battery is selected, the battery in the battery tray cannot be filled. In this case, in the prior art, an NG battery or a dummy battery is needed to fill the tray to prevent the vacuum degree of the negative pressure suction nozzle in the empty position from decreasing, which leads to the need to reserve a battery or dummy battery station when designing the production line, and the need for manual regular battery filling, which reduces the space utilization of the production line, increases the cost and the operation of the production line workers. Figure 1

[0003] Therefore, when several NG batteries are selected from a tray of batteries and then subjected to formation, the existing negative pressure module has the following problems:

[0004] (1) The negative pressure of the empty channel leaks, and the vacuum degree decreases;

[0005] (2) Cannot be controlled individually, and the empty channel negative pressure gas path is disconnected;

[0006] (3) Filling a dummy battery or a battery for re-formation increases the operation process, wastes robot beats and factory space. SUMMARY

[0007] In view of the deficiencies of the prior art, the present application provides a battery formation negative pressure cup assembly with a plug, which can accurately identify the empty channel of the battery tray without using an electric control, and can individually close the negative pressure gas path of the empty channel during formation. The empty channel negative pressure is not leaked after being closed during formation.

[0008] ​To achieve the above technical solutions, the application provides a battery formation negative pressure cup assembly with a plug, which comprises a fixing frame, a negative pressure busbar is installed on the fixing frame, a plurality of negative pressure cups are installed below the fixing frame in parallel and at intervals, the negative pressure cup comprises a negative pressure cup body, an air outlet is arranged at the top of the negative pressure cup body, a plug corresponding to the air outlet is installed below the air outlet, a suction nozzle pipe is arranged at the bottom of the negative pressure cup body, two guide rods are installed on each negative pressure cup in parallel and at intervals in the vertical direction, the top of the guide rod is connected with the fixing frame, the bottom of the guide rod extends into the negative pressure cup body after penetrating through the negative pressure cup body, the guide rod is connected with the plug through a connecting rod, the air outlet at the top of the negative pressure cup body is connected with the negative pressure busbar through a hose, a bottom plate is installed below the negative pressure cup on the fixing frame, the suction nozzle pipe at the bottom of the negative pressure cup body penetrates through the bottom plate in the longitudinal direction and extends downward, a suction nozzle is installed at the bottom of the suction nozzle pipe, and a spring is sleeved on the region of the suction nozzle pipe between the bottom plate and the suction nozzle.

[0009] In the above technical solution, in actual work, the negative pressure cup slides downward along the guide rod under the action of its own gravity and the elastic force of the spring, so that the plug below the air outlet of the negative pressure cup is just inserted into the air outlet, thereby closing the air outlet of the negative pressure cup; when the battery tray rises, the bottom of the negative pressure cup contacts the liquid injection port of the battery in the battery tray, and the negative pressure cup moves upward along the guide rod under the action of the spring elastic force and gravity and the push of the battery, while the plug is fixed, so that the plug is separated from the air outlet when the negative pressure cup moves upward along the guide rod, thereby opening the air outlet of the negative pressure cup; at this time, when the negative pressure busbar is vacuumized, the liquid injection port of the battery can be vacuumized through the negative pressure cup, while the empty channel of the battery tray cannot push the negative pressure cup upward, so that the negative pressure cup of the empty channel is always in a closed state, thereby realizing the separate closing of the negative pressure air path of the empty channel during formation, and the negative pressure of the empty channel is closed without air leakage.

[0010] Preferably, a sealing ring is installed at the joint of the guide rod and the negative pressure cup body, so as to ensure that the joint has good sealing performance.

[0011] Preferably, one end of the negative pressure busbar is connected with a vacuumizing device, in actual work, the negative pressure busbar generates suction force through the vacuumizing device.

[0012] Preferably, a lifting platform is installed below the negative pressure cup, a driving cylinder is installed at the bottom of the lifting platform, the battery tray is placed on the lifting platform, the battery is placed in the battery tray, in actual work, the lifting platform is driven to move up and down through the driving cylinder, thereby realizing the contact or separation of the battery in the battery tray and the negative pressure cup.

[0013] The battery formation negative pressure cup assembly with the plug has the advantages that the battery formation negative pressure cup assembly with the plug has simple structure and ingenious design, and can accurately identify the empty channel of the battery tray without using electric control, and can separately close the negative pressure gas path of the empty channel during formation, and the negative pressure gas path of the empty channel is not leaked after being closed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The structure diagram of the empty channel of the battery tray.

[0015] Figure 2 The structure diagram of the negative pressure cup not being in contact with the battery in the application.

[0016] Figure 3 The structure diagram of the negative pressure cup being in contact with the battery in the application.

[0017] Figure 4 The structure diagram of the negative pressure cup being in contact with the battery in the application. Figure 2 The enlarged structure diagram of the local structure in the application.

[0018] Figure 5 The structure diagram of the negative pressure cup being in contact with the battery in the application. Figure 3 The enlarged structure diagram of the local structure in the application.

[0019] Figure 6 The structure diagram of the negative pressure cup being in contact with the battery in the application.

[0020] In the figure: 1, fixed frame; 2, guide rod; 3, connecting rod; 4, plug; 5, negative pressure cup; 51, negative pressure cup body; 52, suction nozzle pipe; 53, air suction port; 6, hose; 7, negative pressure busbar; 8, bottom plate; 9, spring; 10, suction nozzle; 11, battery tray; 12, battery; 13, lifting platform; 14, driving cylinder; 15, sealing ring. DETAILED DESCRIPTION

[0021] Clearly, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. All the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] Embodiment: A battery formation negative pressure cup assembly with a plug.

[0023] Referring to Figures 1 to 6 As shown in the figure, a battery formation negative pressure cup assembly with a plug comprises a fixing frame 1, a negative pressure busbar 7 is installed on the fixing frame 1, one end of the negative pressure busbar 7 is connected with a vacuumizing device, in actual work, the negative pressure busbar 7 generates suction force through the vacuumizing device, a plurality of parallel and spaced negative pressure cups 5 are installed below the fixing frame 1, the negative pressure cup 5 comprises a negative pressure cup body 51, a suction nozzle pipe 52 is installed at the bottom of the negative pressure cup body 51, the suction nozzle pipe 52 is longitudinally and vertically arranged through a bottom plate 8 below the negative pressure cup 5 on the fixing frame 1 and extends downward, a suction nozzle 10 is installed at the bottom of the suction nozzle pipe 52, the suction nozzle 10 can better realize contact with a liquid injection port of a battery 12, a spring 9 is sleeved on the region of the suction nozzle pipe 52 between the bottom plate 8 and the suction nozzle 10, the spring 9 can make the suction nozzle 10 drive the negative pressure cup 5 to move downward and tightly plug with a plug 4 under normal circumstances, so that the negative pressure cup 5 is in a normally closed state. An air outlet 53 is arranged at the top of the negative pressure cup body 51, the plug 4 corresponding to the air outlet 53 is installed below the air outlet 53, two vertical and parallel spaced guide rods 2 are installed on each negative pressure cup 5, the top of the guide rod 2 is connected with the fixing frame 1, the bottom of the guide rod 2 extends into the negative pressure cup body 51 after penetrating through the negative pressure cup body 51, the guide rod 2 and the plug 4 are connected through a connecting rod 3, this structure design makes the position of the plug 4 fixed, but the negative pressure cup 5 can move up and down along the guide rod 2, a sealing ring 15 is installed at the joint of the guide rod 2 and the negative pressure cup body 51 to enhance the sealing property of the joint, the air outlet 53 at the top of the negative pressure cup body 51 and the negative pressure busbar 7 are connected through a hose 6, the hose 6 connection can meet the needs of vacuumizing and the requirements of the up and down movement of the negative pressure cup 5. A lifting platform 13 is installed below the negative pressure cup 5, a driving cylinder 14 is installed at the bottom of the lifting platform 13, a battery tray 11 is placed on the lifting platform 13, the battery 12 is placed in the battery tray 11, in actual work, the battery tray 11 and the negative pressure cup 5 are contacted or separated by driving the lifting platform 13 to move up and down through the driving cylinder 14.

[0024] The battery formation negative pressure cup assembly with the plug has simple structure and ingenious design, can realize accurate identification of the empty channel of the battery tray 11 without using electric control, and realize separate closing of the empty channel negative pressure gas path during formation, and no air leakage after the empty channel negative pressure is closed. During actual work, the negative pressure cup 5 slides downward along the guide rod 2 under the action of its own gravity and the elastic force of the spring 9, so that the plug 4 located below the air suction port 53 of the negative pressure cup 5 is just inserted into the air suction port 53, thereby closing the air suction port 53 of the negative pressure cup 5, and even when the negative pressure manifold 7 is vacuumized, the negative pressure cup 5 is in the closed state. When the battery tray 11 rises, the bottom of the negative pressure cup 5 contacts the liquid injection port of the battery 12 in the battery tray 11, and is pushed by the battery 12 to move upward along the guide rod 2, while the plug 4 is fixed, so that when the negative pressure cup 5 moves upward along the guide rod 2, the plug 4 is separated from the air suction port 53, thereby opening the air suction port 53 of the negative pressure cup 5, and at this time when the negative pressure manifold 7 is vacuumized, the liquid injection port of the battery 12 can be vacuumized through the negative pressure cup 5, while the empty channel of the battery tray 11 without the battery 12 cannot push the negative pressure cup 5 to move upward, so that the negative pressure cup 5 of the empty channel is always in the closed state, thereby realizing separate closing of the empty channel negative pressure gas path during formation, and no air leakage after the empty channel negative pressure is closed.

[0025] The above is the preferred embodiment of the present application, but the present application should not be limited to the embodiment and the content disclosed in the drawings, so any equivalent or modification without departing from the disclosed spirit of the present application falls within the protection scope of the present application.

Claims

1. A battery formation negative pressure cup assembly with a plug, characterized in that... include: A fixed frame is provided, on which a negative pressure manifold is installed. Multiple negative pressure cups are installed below the fixed frame, arranged in parallel and spaced intervals. Each negative pressure cup includes a cup body, with an air extraction port at the top and a corresponding plug below the port. A suction tube is located at the bottom of the cup body. Each cup has two vertically parallel guide rods installed at intervals. The top of the guide rods connects to the fixed frame, and the bottom extends through the cup body into the cup body. The guide rods are connected to the plugs via connecting rods. The air extraction port at the top of the cup body is connected to the negative pressure manifold via a flexible hose. A base plate is installed on the fixed frame below the cups. The suction tube at the bottom of the cup body extends longitudinally through the base plate and downwards. A suction nozzle is installed at the bottom of the suction tube, and a spring is fitted onto the area between the base plate and the nozzle.

2. The battery formation negative pressure cup assembly with plug as described in claim 1, characterized in that: A sealing ring is installed at the joint between the guide rod and the negative pressure cup body.

3. The battery formation negative pressure cup assembly with plug as described in claim 1, characterized in that: One end of the negative pressure manifold is connected to the vacuum pumping device.

4. The battery formation negative pressure cup assembly with a plug as described in claim 1, characterized in that: A lifting platform is installed below the negative pressure cup, and a drive cylinder is installed at the bottom of the lifting platform. The battery tray is placed on the lifting platform, and the battery is placed in the battery tray.

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