Lithium battery diaphragm thermal extension device

Abstract

The utility model discloses a lithium battery diaphragm thermal extension device, and relates to the technical field of lithium battery processing, the lithium battery diaphragm thermal extension device comprises a workbench and an extension assembly, the bottom of the workbench is provided with supporting column feet, and the upper end of the workbench is provided with the extension assembly; and the extension assembly comprises a limiting sliding groove, electric telescopic rods, limiting sliding blocks, a limiting frame, a threaded mounting groove, a threaded rotating rod, an auxiliary rotating handle, a clamping block and a rubber anti-skid block, the electric telescopic rods are mounted at the two ends in the limiting sliding groove, the limiting sliding blocks are mounted at the front ends of the electric telescopic rods, and the limiting frame is mounted at the upper ends of the limiting sliding blocks. And meanwhile, a threaded mounting groove is formed in the upper end in the limiting frame, a threaded rotating rod is connected into the threaded mounting groove, and an auxiliary rotating handle is mounted at the upper end of the threaded rotating rod. According to the thermal extension device for the lithium battery diaphragm, the position deviation of the diaphragm can be avoided in the extension process of the lithium battery diaphragm, the extension uniformity of the diaphragm is improved, and the overall use efficiency of the extension device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, in particular to a thermal extension device for lithium battery diaphragms. Background Technique

[0002] A lithium battery is a type of battery with lithium metal or lithium alloy as the positive / negative electrode material and using a non-aqueous electrolyte solution. In the structure of a lithium battery, the diaphragm is one of the key inner components. The performance of the diaphragm determines the interface structure, internal resistance, etc. of the battery, directly affecting the characteristics such as the capacity, cycle, and safety performance of the battery. A diaphragm with excellent performance plays an important role in improving the comprehensive performance of the battery. The main function of the lithium battery diaphragm is to separate the positive and negative electrodes of the battery to prevent the two poles from contacting and short-circuiting. In addition, it also has the function of allowing electrolyte ions to pass through. In order to improve the processing efficiency of lithium batteries, an extension device is required. However, the existing extension devices still have the following deficiencies:

[0003] When the existing extension device is in use, since most extension devices do not have the movement limit during the extension of the lithium battery diaphragm, the extension uniformity of the lithium battery diaphragm is easily affected, resulting in the problems of reduced practicability and use efficiency of the extension device.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a thermal extension device for lithium battery diaphragms is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a thermal extension device for lithium battery diaphragms to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A thermal extension device for lithium battery diaphragms, including a workbench and an extension component. Support column feet are installed at the bottom of the workbench. An extension component is arranged at the upper end of the workbench. The extension component includes a limit sliding groove, an electric telescopic rod, a limit sliding block, a limit frame, a threaded installation groove, a threaded rotating rod, an auxiliary rotating handle, a clamping block, and a rubber anti-sliding block. Electric telescopic rods are installed at both ends inside the limit sliding groove. A limit sliding block is installed at the front end of the electric telescopic rod. A limit frame is installed at the upper end of the limit sliding block. A threaded installation groove is opened at the upper end inside the limit frame. A threaded rotating rod is connected inside the threaded installation groove. An auxiliary rotating handle is installed at the upper end of the threaded rotating rod. A clamping block is connected to the front end of the threaded rotating rod. A rubber anti-sliding block is additionally arranged at the bottom of the clamping block. A heating component is arranged inside the workbench.

[0007] Furthermore, the internal dimension of the limit sliding groove is adapted to the external dimension of the limit sliding block, and the limit sliding block is slidably connected to the limit sliding groove through the electric telescopic rod.

[0008] Further, two limiting frames are provided, and the two limiting frames are symmetrically arranged on both sides of the upper end of the workbench.

[0009] Further, the internal dimension of the threaded installation groove is adapted to the external dimension of the threaded rotating rod, and the threaded rotating rod is rotationally connected to the limiting frame through the threaded installation groove.

[0010] Further, the rubber anti-sliding blocks are equidistantly distributed at the bottom of the clamping block, and the rubber anti-sliding blocks are fixedly connected to the clamping block through bolts.

[0011] Further, the heating component includes an installation through groove, an installation cross plate, a fan, a heating wire and a wedge-shaped net. The installation cross plate is installed at the bottom end inside the installation through groove, and a fan is installed on the upper end of the installation cross plate. The heating wires are distributed above the fan, and a wedge-shaped net is arranged above the heating wires.

[0012] Further, four fans are provided, and two fans are in a group. Each group of fans is symmetrically arranged on both sides inside the installation through groove.

[0013] Further, the external dimension of the heating wire is adapted to the internal dimension of the installation through groove, and the heating wire is embeddedly connected to the workbench through the installation through groove.

[0014] The utility model provides a lithium battery separator thermal extension device, which has the following beneficial effects:

[0015] 1. Through the setting of the extension component, when the lithium battery separator thermal extension device is used, the electric telescopic rod drives the limiting slider to move left and right inside the limiting chute, so that the limiting frame installed on the upper end of the limiting slider moves stably. The threaded rotating rod is rotationally installed inside the limiting frame through the threaded installation groove. While rotating the threaded rotating rod with the auxiliary turning handle, the clamping block moves downwards accordingly. The edge of the lithium battery separator to be processed is limited by the clamping block, and the rubber anti-sliding blocks are used to increase the friction force after clamping, improving the clamping stability of the lithium battery separator and increasing the subsequent extension processing efficiency.

[0016] 2. Through the setting of the heating component, when the lithium battery separator thermal extension device is used, the installation cross plate is fixedly installed at the lower end inside the installation through groove through the fastening bolts, and the fan is fixedly installed on both sides of the upper end of the installation cross plate through the fastening bolts. The heating wire installed above the fan operates in cooperation with the fan to convey hot air upwards. At the same time, the hot air heats the lithium battery separator, increasing the subsequent extension efficiency of the lithium battery separator. At the same time, the wedge-shaped net added above the heating wire prevents large particle impurities from contacting the lithium battery separator through the fan, improving the overall practicability of the extension device. Description of the Drawings

[0017] Figure 1Schematic three-dimensional structure diagram of a lithium battery separator thermal extension device of the present utility model;

[0018] Figure 2 Schematic three-dimensional unfolded structure diagram of an extension component of a lithium battery separator thermal extension device of the present utility model;

[0019] Figure 3 Schematic three-dimensional unfolded structure diagram of a heating component of a lithium battery separator thermal extension device of the present utility model.

[0020] In the figure: 1, workbench; 2, support column feet; 3, extension component; 301, limit sliding groove; 302, electric telescopic rod; 303, limit slider; 304, limit frame; 305, threaded installation groove; 306, threaded rotating rod; 307, auxiliary turning handle; 308, clamping block; 309, rubber anti-slip block; 4, heating component; 401, installation through groove; 402, installation cross plate; 403, fan; 404, heating wire; 405, wedge-shaped net. Specific implementation manners

[0021] The following further describes in detail the implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] Such as Figures 1 to 3As shown in the figure, a thermal extension device for a lithium battery separator includes a workbench 1 and an extension assembly 3. Support column feet 2 are installed at the bottom of the workbench 1. An extension assembly 3 is arranged at the upper end of the workbench 1. The extension assembly 3 includes a limit chute 301, an electric telescopic rod 302, a limit slider 303, a limit frame 304, a threaded installation groove 305, a threaded rotating rod 306, an auxiliary rotating handle 307, a clamping block 308, and a rubber anti-slip block 309. Electric telescopic rods 302 are installed at both ends inside the limit chute 301. A limit slider 303 is installed at the front end of the electric telescopic rod 302. A limit frame 304 is installed at the upper end of the limit slider 303. A threaded installation groove 305 is opened at the upper end inside the limit frame 304. A threaded rotating rod 306 is connected inside the threaded installation groove 305. An auxiliary rotating handle 307 is installed at the upper end of the threaded rotating rod 306. A clamping block 308 is connected to the front end of the threaded rotating rod 306. A rubber anti-slip block 309 is additionally arranged at the bottom of the clamping block 308. The internal dimension of the limit chute 301 is adapted to the external dimension of the limit slider 303. The limit slider 303 is slidably connected to the limit chute 301 through the electric telescopic rod 302. The number of limit frames 304 is two, and the two limit frames 304 are symmetrically arranged on both sides of the upper end of the workbench 1. The internal dimension of the threaded installation groove 305 is adapted to the external dimension of the threaded rotating rod 306. The threaded rotating rod 306 is rotatably connected to the limit frame 304 through the threaded installation groove 305. The rubber anti-slip blocks 309 are evenly distributed at the bottom of the clamping block 308. The rubber anti-slip blocks 309 are fixedly connected to the clamping block 308 through bolts. The electric telescopic rod 302 is fixedly installed on both sides inside the limit chute 301 through fastening bolts. The operation of the electric telescopic rod 302 drives the limit slider 303 to move left and right inside the limit chute 301, so that the limit frame 304 installed at the upper end of the limit slider 303 moves accordingly. The threaded rotating rod 306 is rotatably installed inside the limit frame 304 by using the threaded installation groove 305. The threaded rotating rod 306 is rotated by cooperating with the auxiliary rotating handle 307, and at the same time, the clamping block 308 moves downward accordingly. The edge of the lithium battery separator to be processed is limited by the clamping block 308, and the friction after clamping is increased by cooperating with the rubber anti-slip block 309, so as to improve the clamping stability of the lithium battery separator and increase the subsequent extension processing efficiency.

[0023] As Figure 1 and Figure 3As shown, a heating component 4 is arranged inside the workbench 1. The heating component 4 includes an installation through groove 401, an installation horizontal plate 402, a fan 403, a heating wire 404, and a wedge-shaped net 405. The installation horizontal plate 402 is installed at the bottom end inside the installation through groove 401, and the fan 403 is installed on the upper end of the installation horizontal plate 402. The heating wires 404 are distributed above the fan 403. Meanwhile, the wedge-shaped net 405 is arranged above the heating wires 404. The number of fans 403 is four, and two fans 403 form a group. Each group of fans 403 is symmetrically arranged on both sides inside the installation through groove 401. The outer dimension of the heating wire 404 is adapted to the inner dimension of the installation through groove 401, and the heating wire 404 is embeddedly connected with the workbench 1 through the installation through groove 401. The installation horizontal plate 402 is fixedly installed at the lower end inside the installation through groove 401 through fastening bolts, and the fan 403 is fixedly installed on both sides of the upper end of the installation horizontal plate 402 in cooperation with the fastening bolts. The heating wire 404 installed above the fan 403 operates in cooperation with the fan 403 to convey hot air upward. Meanwhile, the hot air heats the lithium battery separator, increasing the subsequent stretching efficiency of the lithium battery separator. At the same time, the wedge-shaped net 405 added above the heating wire 404 prevents large-particle impurities from contacting the lithium battery separator through the fan 403, improving the overall practicability of the stretching device.

[0024] In summary, when the lithium battery separator thermal stretching device is in use, first, the supporting column feet 2 increase the stability of the workbench 1 during use. The operation of the electric telescopic rod 302 inside the limit sliding groove 301 drives the limit slider 303 to move left and right inside the limit sliding groove 301, so that the limit frame 304 installed on the upper end of the limit slider 303 moves stably accordingly. The threaded rotating rod 306 is rotationally installed inside the limit frame 304 through the threaded installation groove 305. While rotating the threaded rotating rod 306 with the auxiliary rotating handle 307, the clamping block 308 moves downward accordingly. The edge of the lithium battery separator to be processed is limited by the clamping block 308, and the rubber anti-sliding block 309 is used to increase the friction after clamping, improving the clamping stability of the lithium battery separator. Then, the heating wire 404 inside the installation through groove 401 operates in cooperation with the fan 403 to convey hot air upward. Meanwhile, the hot air heats the lithium battery separator, increasing the subsequent stretching efficiency of the lithium battery separator. The wedge-shaped net 405 added above the heating wire 404 is used to prevent large-particle impurities from contacting the lithium battery separator through the fan 403, improving the overall practicability of the stretching device.

[0025] The embodiments of the present invention are given for the purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A lithium battery diaphragm thermal stretching device, comprising a workbench (1) and a stretching assembly (3), characterized in that: The workbench (1) is provided with a supporting column foot (2) at the bottom, and an extension assembly (3) is provided at the upper end of the workbench (1), and the extension assembly (3) comprises a limit slide groove (301), an electric telescopic rod (302), a limit slider (303), a limit frame (304), a threaded installation groove (305), a threaded rotating rod (306), an auxiliary rotating handle (307), a clamping block (308) and a rubber anti-sliding block (309), the electric telescopic rod (302) is installed at both ends inside the limit slide groove (301), and the front end of the electric telescopic rod (302) is installed A limit slider (303) is provided, and a limit frame (304) is installed on the upper end of the limit slider (303); a threaded mounting groove (305) is provided on the upper end of the limit frame (304); a threaded rotating rod (306) is connected to the inside of the threaded mounting groove (305); an auxiliary rotating handle (307) is installed on the upper end of the threaded rotating rod (306); a clamping block (308) is connected to the front end of the threaded rotating rod (306); a rubber anti-sliding block (309) is added to the bottom of the clamping block (308); and a heating component (4) is provided inside the workbench (1).

2. A lithium battery diaphragm thermal stretching device according to claim 1, characterized in that: The inner dimensions of the limiting slide groove (301) are matched with the outer dimensions of the limiting slider (303), and the limiting slider (303) is slidably connected to the limiting slide groove (301) via an electric telescopic rod (302).

3. A lithium battery diaphragm thermal stretching device according to claim 1, characterized in that: The number of the limiting frames (304) is two, and the two limiting frames (304) are symmetrically arranged on both sides of the upper end of the workbench (1).

4. A lithium battery diaphragm thermal stretching device according to claim 1, characterized in that: The inner dimensions of the threaded mounting groove (305) are matched with the outer dimensions of the threaded rotating rod (306), and the threaded rotating rod (306) is rotatably connected to the limiting frame (304) via the threaded mounting groove (305).

5. A lithium battery diaphragm thermal stretching device according to claim 1, characterized in that: The rubber anti-sliding blocks (309) are evenly distributed at the bottom of the clamping block (308), and the rubber anti-sliding blocks (309) are fixedly connected to the clamping block (308) by bolts.

6. A lithium battery diaphragm thermal stretching device according to claim 1, characterized in that: The heating component (4) comprises a mounting groove (401), a mounting cross plate (402), a fan (403), a heating wire (404) and a wedge-shaped net (405); the mounting cross plate (402) is mounted at the bottom of the mounting groove (401), the fan (403) is mounted at the upper end of the mounting cross plate (402), the heating wire (404) is distributed at the upper end of the fan (403), and the wedge-shaped net (405) is arranged at the upper end of the heating wire (404).

7. A lithium battery diaphragm thermal stretching device according to claim 6, characterized in that: The number of the fans (403) is four, and two fans (403) form a group, and each group of fans (403) is symmetrically arranged on both sides of the installation slot (401).

8. A lithium battery diaphragm thermal stretching device according to claim 6, characterized in that: The external dimensions of the heating wire (404) are matched to the internal dimensions of the installation slot (401), and the heating wire (404) is embeddedly connected to the workbench (1) via the installation slot (401).

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