Electric core pole group hot-pressing equipment

Abstract

The utility model relates to the field of battery cell hot-pressing, and discloses battery cell pole group hot-pressing equipment which comprises a bottom plate, a baffle is fixedly connected to the top surface of the bottom plate, a supporting plate is fixedly connected to one side of the baffle, a moving assembly for enhancing the hot-pressing effect is arranged on the supporting plate, an electric push rod is arranged on one side of the baffle, and the electric push rod is arranged on the other side of the baffle. According to the device, a battery cell pole group is placed on a second heating plate, then a first motor is started to drive a connecting rod to rotate, at the moment, the connecting rod drives a first threaded rod to rotate, so that the battery cell pole group can be quickly heated, the battery cell pole group can be quickly fixed, and the battery cell pole group can be quickly heated. The stability and the reliability are improved; the overall strength and the durability of the battery cell pole group are improved; the production efficiency is improved; the rapid and uniform hot pressing of the battery cell pole group is realized;

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of battery cell hot pressing, in particular to a battery cell pole group hot pressing equipment. BACKGROUND

[0002] The battery cell pole group is the core component of the battery cell, which is composed of the positive electrode, the negative electrode and the separator. They work together to ensure the normal operation of the battery. The positive electrode and the negative electrode are two polar ends of the battery cell, both containing active substances, which are usually the site of chemical reaction. The separator is a thin film with ion permeability, which can prevent direct contact between the positive and negative electrodes, but allows ions to transfer between the two poles. The type of battery cell pole group mainly depends on the type of positive electrode material. The battery cell pole group is responsible for storing positive and negative charges and controlling charge transmission. The working principle of the battery cell is to achieve charging and discharging by the migration of lithium ions between the positive and negative electrodes. When the battery is charging, lithium ions are released from the positive electrode material. The battery cell pole group is the core component of the battery cell, which is composed of the positive electrode, the negative electrode and the separator. Selecting the appropriate pole group type is crucial to improving battery performance and ensuring safety in use. The battery cell pole group hot pressing equipment is a device that tightly combines the positive electrode, negative electrode and separator components of the battery cell under high temperature and high pressure by heating and applying pressure. The main functions of this equipment include welding, sealing and performance testing of the battery cell to ensure that the quality and performance of the battery cell meet the requirements. The working principle of the battery cell pole group hot pressing equipment is mainly based on hot pressing technology. During the hot pressing process, the equipment heats the battery cell pole group to a certain temperature through the heating plate and applies a certain pressure through the pressure system, causing the components of the battery cell pole group to undergo physical changes such as melting, fusion and diffusion under high temperature and high pressure, thereby achieving the tight combination of the battery cell pole group.

[0003] According to the Chinese patent with publication number CN215266405U, a battery cell hot pressing equipment is disclosed. The hot pressing equipment includes a first pressure contact, a second pressure contact, and a compensation structure. The second pressure contact is spaced apart from the first pressure contact, and the second pressure contact and the first pressure contact can jointly heat press the battery cell. The compensation structure is located between the battery cell and the first pressure contact and / or between the battery cell and the second pressure contact during hot pressing. The compensation structure is used to compensate for the thickness of the thinned area of the battery cell during hot pressing. The thinned area is the area of the battery cell body near the tab. The battery cell body is the part of the battery cell other than the tab. The hot pressing equipment compresses the thinned area and the compensation structure during hot pressing, which compensates for the thickness difference between the tab and other parts of the battery cell, reduces the gap between the positive and negative electrode tabs, and ensures the consistency of the battery cell hot pressing interface.

[0004] In the above scheme, the compensation structure is used to compensate the thickness of the thinning area of the to-be-hot-pressed battery cell during hot pressing, the thinning area is the area of the cell body of the to-be-hot-pressed battery cell close to the tab, and the cell body is the part of the to-be-hot-pressed battery cell other than the tab. The hot pressing equipment presses the thinning area and the compensation structure tightly during hot pressing, which has the following disadvantages: the existing battery tab hot pressing equipment has a smaller downward pressure at the four corners than at the center when hot pressing downward, resulting in poor hot pressing effect at the four corners, uneven pressure distribution, and insufficient pressure and temperature at the tab and the separator in the four corner regions, thereby affecting the hot pressing effect, the adhesion between the tab and the separator is not strong enough, and the capacity density and safety of the battery cell are affected. In addition, the battery tab needs to be manually taken out after hot pressing, which is easy to scald the workers due to the high temperature of the battery tab, reduces the work efficiency, affects the overall efficiency of production, increases the labor cost, is time-consuming and laborious, and is complicated to operate, thereby reducing the work efficiency and practicality, and is not conducive to long-term use. Greatly increases the labor intensity of workers. Utility model content

[0005] The utility model aims at providing a battery tab hot pressing equipment to solve the problem that the existing battery tab hot pressing equipment has a smaller downward pressure at the four corners than at the center when hot pressing downward, resulting in poor hot pressing effect at the four corners and uneven pressure distribution.

[0006] In order to achieve the above-mentioned utility model purposes, the utility model adopts the following technical scheme: a battery tab hot pressing equipment, comprising a bottom plate, the top surface of the bottom plate is fixedly connected with a baffle, one side of the baffle is fixedly connected with a supporting plate, the supporting plate is provided with a moving assembly for strengthening the hot pressing effect, one side of the baffle is provided with an electric push rod, the telescopic end of the electric push rod is fixedly connected with a thickening block, the thickening block is provided with an anti-scald assembly which can quickly fix the battery and then move out.

[0007] Preferably, the moving assembly comprises a first motor, the first motor is fixedly connected on the supporting plate, the output end of the first motor is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a first threaded rod, the outer wall of the connecting rod is fixedly connected with a first gear, the first threaded rod is threadedly connected with a moving plate, four second gears are arranged on the first gear, the first gear is in gear engagement with the four second gears, the top surface of the four second gears is fixedly connected with a rotating shaft, the top surface of the rotating shaft is rotatably connected with a supporting plate, the bottom surface of the four second gears is fixedly connected with a telescopic rod, the telescopic end of the telescopic rod is fixedly connected with a second threaded rod, and the bottom end of the second threaded rod is fixedly connected with a circular plate.

[0008] Preferably, one side of the baffle is fixedly connected with a connecting plate, four threaded holes are formed in the connecting plate, and the bottom surface of the circular plate is fixedly connected with a first heating plate.

[0009] Preferably, the anti-scalding assembly comprises a placing plate fixedly connected to the thickened block, a sliding groove is formed in the placing plate, a sliding plate is threadedly connected to the sliding groove, a first toothed plate is fixedly connected to the top surface of the sliding plate, a third gear is arranged on the first toothed plate, the first toothed plate is in gear engagement with the third gear, a second toothed plate is arranged on the third gear, the second toothed plate is in gear engagement with the third gear, a fixed plate is fixedly connected to the top surface of the second toothed plate, and a second motor is fixedly connected to the top surface of the placing plate, with the output end of the second motor being fixedly connected to the third gear.

[0010] Preferably, the baffle is fixedly connected with an elongated plate on one side, and the elongated plate is fixedly connected with a second heating plate on one side.

[0011] Preferably, the top surface of the bottom plate is fixedly connected with a back plate, and the bottom surface of the bottom plate is fixedly connected with a support column.

[0012] Compared with the prior art, the electric core pole group hot-pressing device has the following beneficial effects:

[0013] I. In use, the electric core pole group is placed on the second heating plate, and then the first motor is started to drive the connecting rod to rotate, at this time the connecting rod drives the first threaded rod to rotate, and then the moving plate threadedly connected to the first threaded rod moves downward, at this time the moving plate drives the first heating plate to move downward, then the connecting rod drives the first gear to rotate, at this time the first gear drives the four second gears to rotate simultaneously, then the second gears drive the telescopic rods to rotate, at this time the telescopic ends of the telescopic rods drive the second threaded rods to rotate, then the second threaded rods start to rotate in the threaded holes formed in the connecting plate, at this time the second threaded rods rotate in the threaded holes and move downward, then the second threaded rods drive the circular plates to move downward, at this time the circular plates drive the first heating plate to move downward, realizing rapid and uniform hot-pressing of the electric core pole group, improving stability and reliability, improving the overall strength and durability of the electric core pole group, improving production efficiency, speeding up the entire production progress, realizing rapid and uniform hot-pressing of the electric core pole group, strengthening the application range, and improving the practicality.

[0014] II. In use, when the battery cell pole group processing is completed, the second motor is started, and then the second motor drives the third gear to rotate, at this time the third gear drives the first tooth plate meshed with the gear to move inwards, and then the first tooth plate starts to slide in the sliding groove opened on the placement plate, at this time the third gear drives the second tooth plate to move inwards, and then the fixed plate fixedly connected to the first tooth plate and the second tooth plate starts to move inwards to fix the battery cell pole group, at this time the electric push rod is started to drive the thickening block to move outwards, and then the thickening block drives the placement plate to move outwards, at this time the processed battery cell pole group is moved to the appropriate position to be released and falls into the recycling box for recycling, realizing quick recycling of the processed battery cell pole group, improving the overall production efficiency, realizing quick recycling, reducing the risk of scalding, protecting the safety of the operator, reducing resource waste, improving product quality, being conducive to long-time work, improving work efficiency, being convenient to operate and saving manpower, improving flexibility, being convenient to use, greatly simplifying work, saving time and effort. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front perspective structural schematic view of the embodiment.

[0016] Figure 2 It is an exploded structural schematic view of the embodiment.

[0017] Figure 3 It is a structural schematic view of the second gear of the embodiment.

[0018] Figure 4 It is a structural schematic view of the exploded telescopic rod of the embodiment.

[0019] Figure 5 It is a structural schematic view of the sliding plate of the embodiment.

[0020] Figure 6 It is a structural schematic view of the exploded second tooth plate of the embodiment.

[0021] In the figure: 1, bottom plate; 2, baffle; 3, support plate; 4, first motor; 5, first gear; 6, first threaded rod; 7, second gear; 8, telescopic rod; 9, second threaded rod; 10, moving plate; 11, first heating plate; 12, connecting plate; 13, threaded hole; 14, electric push rod; 15, thickening block; 16, placement plate; 17, sliding groove; 18, sliding plate; 19, first tooth plate; 20, third gear; 21, second tooth plate; 22, fixed plate; 23, second heating plate; 24, second motor; 25, back plate. DETAILED DESCRIPTION

[0022] The preferred embodiment of the utility model is described in detail below with reference to the drawings.

[0023] As Figures 1-4As shown, an electrode group hot pressing equipment for battery cell, including the bottom plate 1, the top surface of the bottom plate 1 is fixedly connected with the baffle 2, one side of the baffle 2 is fixedly connected with the supporting plate 3, the supporting plate 3 is provided with a moving assembly for strengthening the hot pressing effect, one side of the baffle 2 is provided with an electric push rod 14, the telescopic end of the electric push rod 14 is fixedly connected with the thickening block 15, the thickening block 15 is provided with an anti-scalding assembly which can quickly fix the battery cell and then move out, the moving assembly comprises a first motor 4, the first motor 4 is fixedly connected on the supporting plate 3, the output end of the first motor 4 is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a first threaded rod 6, the outer wall of the connecting rod is fixedly connected with a first gear 5, the first threaded rod 6 is threadedly connected with a moving plate 10, four second gears 7 are arranged on the first gear 5, the first gear 5 is in gear engagement with the four second gears 7, the top surface of the four second gears 7 is fixedly connected with a rotating shaft, the top surface of the rotating shaft is rotatably connected with the supporting plate 3, the bottom surface of the four second gears 7 is fixedly connected with a telescopic rod 8, the telescopic end of the telescopic rod 8 is fixedly connected with a second threaded rod 9, the bottom end of the second threaded rod 9 is fixedly connected with a circular plate, one side of the baffle 2 is fixedly connected with a connecting plate 12, four threaded holes 13 are formed in the connecting plate 12, and the bottom surface of the circular plate is fixedly connected with a first heating plate 11.

[0024] In use, the electrode group for battery cell is placed on the second heating plate 23, and then the first motor 4 is started to drive the connecting rod to rotate, at this time the connecting rod drives the first threaded rod 6 to rotate, and then the moving plate 10 threadedly connected on the first threaded rod 6 moves downward, at this time the moving plate 10 drives the first heating plate 11 to move downward, and then the connecting rod drives the first gear 5 to rotate, at this time the first gear 5 drives the four second gears 7 to rotate simultaneously, then the second gear 7 drives the telescopic rod 8 to rotate, at this time the telescopic end of the telescopic rod 8 drives the second threaded rod 9 to rotate, then the second threaded rod 9 starts to rotate in the threaded hole 13 formed in the connecting plate 12, at this time the second threaded rod 9 rotates downward in the threaded hole 13, then the second threaded rod 9 drives the circular plate to move downward, at this time the circular plate drives the first heating plate 11 to move downward, solving the problem that the pressing force of the four corners is less than that of the center when the electrode group hot pressing equipment for battery cell moves downward, realizing fast and uniform hot pressing of the electrode group for battery cell, improving stability and reliability, improving the overall strength and durability of the electrode group for battery cell, improving production efficiency, speeding up the entire production progress, realizing fast and uniform hot pressing of the electrode group for battery cell, strengthening the application range, and improving the practicality.

[0025] As Figures 1-6As shown, the anti-scalding assembly comprises a placing plate 16 fixedly connected to the thickened block 15, a sliding groove 17 is formed in the placing plate 16, a sliding plate 18 is threadedly connected to the sliding groove 17, a first toothed plate 19 is fixedly connected to the top surface of the sliding plate 18, a third gear 20 is arranged on the first toothed plate 19, the first toothed plate 19 is in gear engagement with the third gear 20, a second toothed plate 21 is arranged on the third gear 20, the second toothed plate 21 is in gear engagement with the third gear 20, a fixed plate 22 is fixedly connected to the top surface of the second toothed plate 21, a second motor 24 is fixedly connected to the top surface of the placing plate 16, the output end of the second motor 24 is fixedly connected to the third gear 20, the side of the baffle 2 is fixedly connected with an elongated plate, the side of the elongated plate is fixedly connected with a second heating plate 23, the top surface of the bottom plate 1 is fixedly connected with a back plate 25, and the bottom surface of the bottom plate 1 is fixedly connected with a supporting column.

[0026] In use, when the processing of the battery cell pole group is completed, the second motor 24 is started, and then the second motor 24 drives the third gear 20 to rotate, at this time the third gear 20 drives the gear-engaged first toothed plate 19 to move inward, and then the first toothed plate 19 starts to slide in the sliding groove 17 formed in the placing plate 16, at this time the third gear 20 drives the second toothed plate 21 to move inward, and then the fixed plate 22 fixedly connected to the first toothed plate 19 and the second toothed plate 21 starts to move inward to fix the battery cell pole group, at this time the electric push rod 14 is started to drive the thickened block 15 to move outward, and then the thickened block 15 drives the placing plate 16 to move outward, at this time the processed battery cell pole group is moved to a suitable position to be released and falls into the recycling box for recycling, solving the problem that the processed battery cell pole group needs to be manually taken out after hot pressing, which is easy to scald the workers, realizing quick recycling of the processed battery cell pole group, improving the overall production efficiency, realizing quick recycling, reducing the risk of scalding, protecting the safety of the operators, reducing resource waste, improving product quality, being conducive to long-time work, improving the work efficiency, being convenient to operate and saving manpower, improving the flexibility, being convenient to use, greatly simplifying the work, saving time and effort.

[0027] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A cell electrode assembly hot pressing device, comprising a base plate (1), characterized in that: A baffle (2) is fixedly connected to the top surface of the base plate (1). A support plate (3) is fixedly connected to one side of the baffle (2). A moving component to enhance the hot pressing effect is provided on the support plate (3). An electric push rod (14) is provided on one side of the baffle (2). A thickening block (15) is fixedly connected to the telescopic end of the electric push rod (14). An anti-scalding component that can quickly fix the battery cell and move out is provided on the thickening block (15).

2. The cell electrode assembly hot pressing device according to claim 1, characterized in that: The moving component includes a first motor (4), which is fixedly connected to a support plate (3). A connecting rod is fixedly connected to the output end of the first motor (4). A first threaded rod (6) is fixedly connected to the bottom end of the connecting rod. A first gear (5) is fixedly connected to the outer wall of the connecting rod. A moving plate (10) is threadedly connected to the first threaded rod (6). Four second gears (7) are provided on the first gear (5). The first gear (5) meshes with the four second gears (7). A rotating shaft is fixedly connected to the top surface of the four second gears (7). The support plate (3) is rotatably connected to the top surface of the rotating shaft. A telescopic rod (8) is fixedly connected to the bottom surface of the four second gears (7). A second threaded rod (9) is fixedly connected to the telescopic end of the telescopic rod (8). A circular plate is fixedly connected to the bottom end of the second threaded rod (9).

3. The cell electrode assembly hot pressing device according to claim 2, characterized in that: A connecting plate (12) is fixedly connected to one side of the baffle (2), and four threaded holes (13) are provided on the connecting plate (12). A first heating plate (11) is fixedly connected to the bottom surface of the circular plate.

4. The cell electrode assembly hot pressing device according to claim 1, characterized in that: The anti-scalding component includes a placement plate (16), which is fixedly connected to a thickened block (15). A groove (17) is provided on the placement plate (16), and a sliding plate (18) is threaded onto the groove (17). A first toothed plate (19) is fixedly connected to the top surface of the sliding plate (18). A third gear (20) is provided on the first toothed plate (19), and the first toothed plate (19) meshes with the third gear (20). A second toothed plate (21) is provided on the third gear (20), and the second toothed plate (21) meshes with the third gear (20). A fixing plate (22) is fixedly connected to the top surface of the second toothed plate (21). A second motor (24) is fixedly connected to the top surface of the placement plate (16), and the output end of the second motor (24) is fixedly connected to the third gear (20).

5. The cell electrode assembly hot pressing device according to claim 1, characterized in that: An extension plate is fixedly connected to one side of the baffle (2), and a second heating plate (23) is fixedly connected to one side of the extension plate.

6. The cell electrode assembly hot pressing device according to claim 1, characterized in that: The top surface of the base plate (1) is fixedly connected to a back plate (25), and the bottom surface of the base plate (1) is fixedly connected to a support column.

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