Tab flattening mechanism and battery module tabletting device

Abstract

The utility model provides a tab flattening mechanism and a battery module tabletting device, and relates to the technical field of battery manufacturing. The tab flattening mechanism comprises a mounting piece, a driving piece, a transmission piece, a connecting rod and a limiting piece. The mounting part, the driving part, the transmission part and the connecting rod are sequentially connected, the mounting part and the limiting part are mounted on the bracket, the connecting rod is in sliding fit with the limiting part, the driving part is used for driving the transmission part to move to drive the connecting rod to move, and the connecting rod is used for pressing the tab. The limiting piece is used for limiting the movement direction of the connecting rod, the transmission piece is driven by the driving piece to move so as to drive the connecting rod to move in the limiting direction of the limiting piece through the transmission piece, so that the purpose of pressing the tab is achieved, and compared with an existing manual pressing mode, the tab flattening mechanism is high in automation degree, saves manpower and improves the working efficiency. And the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a tab flattening mechanism and a battery module pressing device. Background Art

[0002] During the production of batteries, it is usually necessary to perform a pry inspection on the battery module to ensure the quality of the battery module. However, currently, after the pry inspection, the tabs are usually manually knocked flat, which is not only labor-intensive but also inefficient, seriously affecting the battery production efficiency. Utility Model Content

[0003] The utility model aims to provide a tab flattening mechanism and a battery module tablet pressing device, which can press the tabs and have a high degree of automation and high efficiency.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In a first aspect, the utility model provides a tab flattening mechanism, including a mounting member, a driving member, a transmission member, a connecting rod and a limiting member;

[0006] The mounting member, driving member, transmission member and connecting rod are connected in sequence, the mounting member and the limiting member are both used to be installed on the bracket, the connecting rod and the limiting member are slidably matched, the driving member is used to drive the transmission member to move, thereby driving the connecting rod to move, and the connecting rod is used to press the pole ear.

[0007] In an optional embodiment, the transmission member includes a flywheel and a crank, the output end of the driving member is connected to the flywheel, one end of the crank is movably connected to the flywheel, and the other end is movably connected to the connecting rod, the driving member is used to drive the flywheel to rotate, and the crank is used to drive the connecting rod to perform linear reciprocating motion under the drive of the flywheel.

[0008] In an optional embodiment, one end of the crank is movably connected to the center of the flywheel.

[0009] In an optional embodiment, the limiting member includes a mounting portion and a limiting portion that are connected to each other, the mounting portion is used to be installed on the bracket, the limiting portion is provided with a channel along the vertical direction, and the connecting rod is slidably disposed in the channel.

[0010] In an optional embodiment, the tab flattening mechanism further includes a pressing piece, the pressing piece is connected to the end of the connecting rod, and the pressing piece is used to press the tab.

[0011] In an optional embodiment, the pressing member is cylindrical, and an outer diameter of the pressing member is greater than an outer diameter of the connecting rod.

[0012] In a second aspect, the utility model provides a battery module pressing device, comprising a bracket, a carrying platform and a tab flattening mechanism as described in any one of the aforementioned embodiments, wherein the bracket is arranged on the carrying platform, the carrying platform is used to carry the battery module, and the tab flattening mechanism is arranged on the bracket.

[0013] In an optional embodiment, the tab flattening mechanism further includes a sensor, which is mounted on the bracket and is used to detect the position of the tab.

[0014] In an optional embodiment, the number of the sensors and the tab flattening mechanisms are both plural, and one tab flattening mechanism is provided corresponding to at least one sensor.

[0015] In an optional embodiment, the tab flattening mechanism further includes a controller, the controller is mounted on the bracket, the driving member and the sensor are both connected to the controller, and the controller is used to control the start and stop of the driving member.

[0016] The beneficial effects of the tab flattening mechanism and the battery module pressing device provided by the embodiments of the utility model include: the limiting member is used to limit the movement direction of the connecting rod, and the driving member drives the transmission member to move, so as to drive the connecting rod to move along the limiting direction of the limiting member through the transmission member, thereby achieving the purpose of pressing the tab. Compared with the existing manual pressing method, the tab flattening mechanism provided by the utility model has a high degree of automation, saves manpower, and is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a battery module pressing device provided in an embodiment of the utility model;

[0019] Figure 2 A partial structural schematic diagram of a battery module pressing device provided in an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the tab flattening mechanism provided in an embodiment of the utility model.

[0021] Icons: 1-battery module pressing device; 10-ear flattening mechanism; 20-bracket; 30-carrying platform; 40-sensor; 50-controller; 100-mounting part; 200-driving part; 300-transmission part; 310-flywheel; 320-crank; 400-connecting rod; 500-limiting part; 510-mounting part; 520-limiting part; 521-channel; 600-pressing part; 2-battery module. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] During the production of batteries, it is usually necessary to perform a pry inspection on the battery module to ensure the quality of the battery module. However, currently, after the pry inspection is completed, it is usually necessary to manually knock the tabs flat, which is not only labor-intensive but also inefficient, seriously affecting the production efficiency of the battery.

[0029] Based on the above questions, please refer to Figure 1 and Figure 2 The embodiment of the utility model provides a battery module pressing device 1, comprising a bracket 20, a carrying platform 30 and a tab flattening mechanism 10. The bracket 20 is arranged on the carrying platform 30, the carrying platform 30 is used to carry the battery module 2, and the tab flattening mechanism 10 is arranged on the bracket 20.

[0030] In this embodiment, the battery module 2 is composed of a tab and a plurality of battery cells. By placing the battery module 2 on the supporting platform 30, the tab flattening mechanism 10 can press the tab, which has a high degree of automation, saves manpower, and effectively improves the production efficiency of the battery.

[0031] Furthermore, the battery module pressing device 1 also includes a sensor 40 and a controller 50, both of which are installed on the bracket 20, and the driving member 200 and the sensor 40 are connected to the controller 50. The sensor 40 is used to detect the position of the pole ear, and the controller 50 is used to control the start and stop of the driving member 200.

[0032] In this embodiment, when the sensor 40 detects that the pole tab moves to a preset position, that is, when the pole tab moves to directly below the pole tab flattening mechanism 10, the sensor 40 transmits a signal to the controller 50. After receiving the signal, the controller 50 sends a control instruction to the driving component 200 of the pole tab flattening mechanism 10, thereby pressing the pole tab.

[0033] Therefore, the battery module pressing device 1 has a high degree of automation and can effectively avoid missed detection.

[0034] Optionally, the sensor 40 may be a laser ranging sensor 40 .

[0035] Furthermore, the number of sensors 40 and tab flattening mechanisms 10 are both plural, and one tab flattening mechanism 10 is provided correspondingly to at least one sensor 40 .

[0036] In this embodiment, by providing a plurality of sensors 40 and a tab flattening mechanism 10 , a plurality of tabs can be pressed simultaneously, which significantly improves the tab pressing efficiency.

[0037] In detail, the plurality of tab flattening mechanisms 10 and the plurality of sensors 40 are arranged in one-to-one correspondence.

[0038] For further information, see Figure 3 The tab flattening mechanism 10 includes a mounting member 100 , a driving member 200 , a transmission member 300 , a connecting rod 400 and a limiting member 500 .

[0039] Among them, the mounting member 100, the driving member 200, the transmission member 300 and the connecting rod 400 are connected in sequence, the mounting member 100 and the limiting member 500 are both used to be installed on the bracket 20, the connecting rod 400 and the limiting member 500 are slidably matched, the driving member 200 is used to drive the transmission member 300 to move, so as to drive the connecting rod 400 to move, and the connecting rod 400 is used to press the pole ear.

[0040] In this embodiment, the fixing member is used to fix the driving member 200, and the limiting member 500 is used to limit the movement direction of the connecting rod 400. Therefore, the driving member 200 drives the transmission member 300 to move, so that the transmission member 300 drives the connecting rod 400 to move along the limiting direction of the limiting member 500, thereby achieving the purpose of pressing the tab. Compared with the existing manual pressing method, the tab flattening mechanism 10 provided by the utility model has a high degree of automation, saves manpower, and is more efficient.

[0041] It can be understood that the driving member 200 is a motor, and the transmission member 300 can be a crank 320 connecting rod 400 structure, a crank 320 slider structure, etc., as long as the circular motion of the motor output end can be converted into reciprocating linear motion, and no specific limitation is made here.

[0042] Furthermore, the transmission member 300 includes a flywheel 310 and a crank 320. The output end of the driving member 200 is connected to the flywheel 310. One end of the crank 320 is movably connected to the flywheel 310, and the other end is movably connected to the connecting rod 400. The driving member 200 is used to drive the flywheel 310 to rotate, and the crank 320 is used to drive the connecting rod 400 to perform linear reciprocating motion under the drive of the flywheel 310.

[0043] In this embodiment, the flywheel 310 is driven to rotate through the output end of the driving member 200, so that the flywheel 310 drives the crank 320 and the connecting end of the flywheel 310 to perform circular motion. Since the other end of the crank 320 is also connected to the connecting rod 400, the other end of the crank 320 drives the connecting rod 400 to perform linear reciprocating motion, thereby realizing the function of pressing the pole ear.

[0044] It should be noted that the plane where the flywheel 310 moves is parallel to the plane where the crank 320 moves.

[0045] Furthermore, one end of the crank 320 is movably connected to the center of the flywheel 310 .

[0046] In this embodiment, the flywheel 310 is disc-shaped, so one end of the crank 320 is connected to the center of the flywheel 310, and the output end of the driving member 200 is connected to the area between the center and the circumference of the flywheel 310, so that the transmission member 300 forms an eccentric structure, so that when the driving member 200 drives the flywheel 310 to rotate, the crank 320 drives the connecting rod 400 to perform reciprocating linear motion.

[0047] Of course, in other embodiments, one end of the crank 320 may also be connected to other positions of the flywheel 310, as long as the flywheel 310 can drive the crank 320 to move and drive the connecting rod 400 to perform reciprocating linear motion through the crank 320.

[0048] Furthermore, the limiting member 500 includes a mounting portion 510 and a limiting portion 520 connected to each other. The mounting portion 510 is used to be mounted on the bracket 20 . The limiting portion 520 is provided with a channel 521 along the vertical direction. The connecting rod 400 is slidably disposed in the channel 521 .

[0049] In this embodiment, the channel 521 is extended in the vertical direction, so the connecting rod 400 is slidably disposed in the channel 521 to ensure that the connecting rod 400 performs reciprocating linear motion along the vertical direction.

[0050] Furthermore, the tab flattening mechanism 10 further includes a pressing member 600 , which is connected to the end of the connecting rod 400 , and is used to press the tab.

[0051] In this embodiment, a pressing member 600 is provided at the end of the connecting rod 400 so as to press the tab by the pressing member 600 , thereby ensuring that the tab can be effectively flattened and the quality of the tablet pressing is guaranteed.

[0052] It should be noted that the pressing member 600 can be detachably connected or fixedly connected to the connecting rod 400, and the pressing member 600 can also be integrally formed with the connecting rod 400, which is not specifically limited here.

[0053] In detail, the pressing member 600 is cylindrical, and the outer diameter of the pressing member 600 is greater than the outer diameter of the connecting rod 400 .

[0054] In this embodiment, the outer diameter of the pressing member 600 is larger than the outer diameter of the connecting rod 400 to ensure that the pressing member 600 has sufficient contact area with the tab, thereby ensuring that the pressing member 600 can flatten the tab and avoid damaging the tab.

[0055] In summary, the utility model provides a tab flattening mechanism 10 and a battery module pressing device 1, wherein the limit member 500 is used to limit the movement direction of the connecting rod 400, and the driving member 200 drives the transmission member 300 to move, so as to drive the connecting rod 400 to move along the restricted direction of the limit member 500 through the transmission member 300, thereby achieving the purpose of pressing the tab. Compared with the existing manual pressing method, the tab flattening mechanism 10 provided by the utility model has a high degree of automation, saves manpower, and is more efficient.

[0056] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tab flattening mechanism, characterized in that: It includes mounting parts, driving parts, transmission parts, connecting rods and limiting parts; The mounting member, driving member, transmission member and connecting rod are connected in sequence, the mounting member and the limiting member are both used to be installed on the bracket, the connecting rod and the limiting member are slidably matched, the driving member is used to drive the transmission member to move, thereby driving the connecting rod to move, and the connecting rod is used to press the pole ear.

2. The tab flattening mechanism according to claim 1, characterized in that: The transmission member includes a flywheel and a crank, the output end of the driving member is connected to the flywheel, one end of the crank is movably connected to the flywheel, and the other end is movably connected to the connecting rod, the driving member is used to drive the flywheel to rotate, and the crank is used to drive the connecting rod to perform linear reciprocating motion under the drive of the flywheel.

3. The tab flattening mechanism according to claim 2, characterized in that: One end of the crank is movably connected to the center of the flywheel.

4. The tab flattening mechanism according to claim 1, characterized in that: The limiting member comprises a mounting portion and a limiting portion which are connected to each other, the mounting portion is used to be mounted on the bracket, the limiting portion is provided with a channel along the vertical direction, and the connecting rod is slidably arranged in the channel.

5. The tab flattening mechanism according to claim 1, characterized in that: The tab flattening mechanism further includes a pressing piece, which is connected to the end of the connecting rod and is used to press the tab.

6. The tab flattening mechanism according to claim 5, characterized in that: The pressing piece is cylindrical, and the outer diameter of the pressing piece is greater than the outer diameter of the connecting rod.

7. A battery module pressing device, characterized in that: It comprises a bracket, a carrying platform and a tab flattening mechanism as described in any one of claims 1 to 6, wherein the bracket is arranged on the carrying platform, the carrying platform is used to carry a battery module, and the tab flattening mechanism is arranged on the bracket.

8. The battery module pressing device according to claim 7, characterized in that: The battery module pressing device also includes a sensor, which is installed on the bracket and is used to detect the position of the tab.

9. The battery module pressing device according to claim 8, characterized in that: The number of the sensors and the tab flattening mechanisms are both plural, and one tab flattening mechanism is provided corresponding to at least one sensor.

10. The battery module pressing device according to claim 8, characterized in that: The battery module pressing device also includes a controller, which is installed on the bracket. The driving member and the sensor are both connected to the controller, and the controller is used to control the start and stop of the driving member.

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