Modular low-temperature high-power lithium battery baking protection basket

Abstract

The utility model relates to the technical field of lithium battery production, in particular to a modular low-temperature high-power lithium battery baking protection basket which comprises protection basket modules in modular design, and at least two protection basket modules are detachably connected in the vertical direction by means of a quick release structure. In the process of building the device, the protective basket modules are accurately inserted into the first mounting holes in the four corners of the adjacent module frames in the vertical direction by means of the first guide rods on the quick release structures, and a complete multi-layer storage structure is quickly and stably assembled. Each protective basket module comprises a frame and a first partition plate, and the first partition plates are inserted into slots in the frame to divide the accommodating space into a plurality of placing units for placing battery cells. And during baking operation, the protective basket module can provide protection for the battery cells, so that the battery cells are prevented from being collided and extruded by the outside. In addition, the protection basket modules can be flexibly combined according to needs through the modular design, the connection and disassembly convenience is greatly improved through the quick disassembly structure, and the time and labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery production technical field, specifically, relate to a module formula low temperature high power lithium battery baking protection basket. BACKGROUND

[0002] Lithium ion battery as the emerging strategic industry, with its high energy density, long cycle life and low self-discharge rate, etc. Advantage, is widely used in new energy vehicles, unmanned aerial vehicles, wearable devices and other fields. Lithium battery needs to be carried out during production homogenate, coating, rolling, slicing, laminating, packaging, liquid injection, formation process; The working principle of low temperature high power lithium battery is similar to that of ordinary lithium ion battery, which is to realize the charging and discharging process of the battery by using lithium ion embedding and de-embedding between positive and negative electrodes. However, in order to meet the charging and discharging demand in low temperature environment, low temperature high power lithium battery has more strict standards when carrying out liquid injection process.

[0003] Liquid injection process is the fourth process of preparing battery. The electrolyte is injected into the packaged battery from the reserved liquid injection port. Water removal in the battery is required before electrolyte injection, and the water content in the battery is ensured by baking equipment to ensure that the lithium ion battery can meet the test standard of low temperature and high power. When baking, the battery is placed in a suitable material box, arranged neatly, the air bag is upward, and the number of each box is about 20EA; And require the battery to be expanded and opened. The structure of the existing material box is simple, and the applicability is low. When baking different specifications and models of batteries, different standard specifications of material boxes are usually required. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving one of the technical problems existing in the prior art. Therefore, the utility model provides a kind of module formula low temperature high power lithium battery baking protection basket, and applicability is good, can carry the baking process of multiple different specifications and models of battery.

[0005] According to the utility model embodiment, a kind of module formula low temperature high power lithium battery baking protection basket, including protection basket module, the protection basket module is provided with N, N The protection basket module is detachably connected together along vertical direction by quick release structure;The protection basket module includes frame and M first partition, the frame is provided with accommodating space, the inner circumferential side of the frame is provided with a plurality of insertion slots along the width direction both sides;The first partition is inserted in the insertion slot, and the accommodating space is divided into M+1 placement units;Wherein, N≥2;M≥1;The first mounting hole is provided at the four corners of the quick release structure of the frame, the first guide rod is provided on the side of the quick release structure away from first mounting hole, and the first guide rod of the protection basket module can be inserted in the first mounting hole adjacent in vertical direction.

[0006] According to some embodiments of the utility model, the first guide rod comprises a support part and a guide part, the shaft diameter of the support part is larger than the shaft diameter of the guide part, and the guide part and the first mounting hole are in interference fit.

[0007] According to some embodiments of the utility model, a guide C angle is arranged at the outer edge of the first mounting hole.

[0008] According to some embodiments of the utility model, handles are arranged on both sides of the frame in the length direction.

[0009] According to some embodiments of the utility model, reinforcing ribs are arranged on both sides of the frame in the width direction.

[0010] According to some embodiments of the utility model, heat dissipation holes are arranged at the bottom of the frame.

[0011] According to some embodiments of the utility model, a guide R angle is arranged on the slot.

[0012] According to some embodiments of the utility model, the protective basket module further comprises a second partition plate, the second partition plate is inserted on the frame, and the first partition plate is perpendicular to the second partition plate.

[0013] According to some embodiments of the utility model, the protective basket module is made of high-temperature-resistant insulating material.

[0014] According to some embodiments of the utility model, the quick release structure further comprises an extension rod, the extension rod is provided with a second mounting hole, and the side, away from the second mounting hole, of the extension rod is provided with a second guide rod.

[0015] According to some embodiments of the utility model, a modular low-temperature high-power lithium battery baking protective basket has at least the following beneficial effects:

[0016] According to the scheme of the utility model, the protection basket module adopts modular design, and at least two protection basket modules are detachably connected together along the vertical direction through the quick release structure; when the device is built, the first guide rod on the quick release structure is used to insert the protection basket module into the first mounting hole at the four corners of the frame of the vertically adjacent protection basket module, so that the plurality of protection basket modules are quickly and stably assembled to form a complete multi-layer storage structure. Each protection basket module comprises a frame and at least one first partition plate, the frame has an accommodation space inside, a plurality of insertion slots are arranged on the inner circumferential side of the frame along the width direction, and the first partition plate is inserted into the insertion slots to divide the accommodation space into M+1 placing units. In actual use, the battery cell can be placed in the placing units to realize orderly storage of the battery cell. When the baking operation is performed, the protection basket module is in the baking environment. The structure of the protection basket module can provide physical protection for the battery cell and prevent the battery cell from being affected by collision, extrusion and the like of external factors during the baking process. Meanwhile, the modular design of the device enables the protection basket module to be flexibly combined in layers and the number of placing units in each layer according to requirements, so as to adapt to the baking requirements of different numbers and specifications of battery cells. In the embodiment, a plurality of placing units are divided in each protection basket module by the first partition plate, and the position of the first partition plate in the insertion slot can be adjusted according to the size and shape of the lithium battery cell, and the size of the placing unit is changed, so that the placing requirements of different specifications of battery cells are met, and the versatility of the protection basket module is improved.

[0017] According to the scheme of the utility model, the quick release structure can improve the convenience of connection and disassembly between the protection basket modules. When the protection basket modules need to be assembled, the first guide rod can be quickly inserted into the first mounting hole to complete the connection; and after the baking operation is completed, each protection basket module can be quickly removed, which is convenient for storage and transportation, and time and labor cost are greatly saved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a structural schematic view of the double-layer protection basket module of the utility model;

[0019] Fig. 2 It is an explosion structural schematic view of the single-layer protection basket module of the utility model;

[0020] Fig. 3 It is a sectional view structural schematic view of the utility model;

[0021] Fig. 4 It is a structural schematic view of the utility model with an extension rod.

[0022] In the drawing:

[0023] 100 - protection basket module;

[0024] 200-frame, 201-accommodation space, 202-slot, 203-placing unit, 204-guide R angle, 210-first partition, 220-handle, 230-stiffening rib, 240-heat dissipation hole, 250-second partition;

[0025] 300-quick release structure, 310-first mounting hole, 311-guide C angle, 320-first guide rod, 321-supporting part, 322-guiding part, 323-shoulder, 330-elongated rod, 331-second mounting hole, 332-second guide rod. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In the description of the present application, the plural refers to two or more. If there is a description of first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0029] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0030] Reference Figs. 1 to 4As shown, the utility model discloses a kind of modular low-temperature high-power lithium battery baking protection basket, including protection basket module 100, protection basket module 100 is provided with N, N protection basket module 100 is detachably connected together along vertical direction by quick release structure 300;Protection basket module 100 includes frame 200 and M first baffle 210, frame 200 is provided with containing space 201, the inner circumferential side of frame 200 is provided with multiple slots 202 along the width direction both sides;First baffle 210 is inserted in slot 202, and containing space 201 is divided into M+1 placement unit 203;Wherein, N≥2;M≥1;Quick release structure 300 is provided with first mounting hole 310 at the four corners of frame 200, the side of quick release structure 300 away from first mounting hole 310 is provided with first guide rod 320, and the first guide rod 320 of protection basket module 100 can be inserted in vertically adjacent first mounting hole 310. Specifically, in the embodiment, the combination of multiple protection basket modules 100 forms the basic structure of the device, and the protection basket modules 100 are detachably connected along the vertical direction by the quick release structure 300;Quick release structure 300 is provided with first guide rod 320, and the first guide rod 320 is adapted with the first mounting hole 310 at the four corners of the frame 200 of the vertically adjacent protection basket module 100;The operator only needs to align the first guide rod 320 with the first mounting hole 310 and gently insert, and the connection of the two protection basket modules 100 can be quickly realized. With the cooperation of the first guide rod 320 and the first mounting hole 310, the multiple protection basket modules 100 are quickly and stably assembled together, and finally form a multi-layer storage structure. Each protection basket module 100 includes frame 200 and at least one first baffle 210;The inner circumferential side of frame 200 is uniformly distributed with multiple slots 202 along the width direction both sides;First baffle 210 can be inserted into slot 202, in the embodiment, the spacing of two slots 202 is the thickness of the minimum cell, and after first baffle 210 is inserted into slot 202, containing space 201 is divided into M+1 relatively independent placement units 203. The position of first baffle 210 in slot 202 can be adjusted according to the size and shape of lithium battery inside each protection basket module 100, the size of placement unit 203 is changed, different specifications of lithium battery are adapted, the demand of diversified market is met, the production cost and efficiency loss are reduced, in addition, in the lithium battery production process, the cell is placed in the placement unit 203. This storage method is convenient for staff management and operation, and the cell can be stored and taken conveniently according to production batch, model, etc., and the risk of damage can be avoided by avoiding mutual collision and interference. In the baking operation stage, the protection basket module 100 is placed in the baking environment as a whole. The structure of the protection basket module 100 can provide physical protection for the cell. The internal environment of the baking equipment is complex, and there are potential dangerous factors, such as equipment component movement, air flow fluctuation, etc. which may damage the cell.The frame 200 of the protection basket module 100 can withstand external force impact and disperse the force, and the first partition plate 210 can prevent adjacent battery cells from being extruded, buffer external vibration, and protect the battery cells from external interference during baking.

[0031] In some embodiments of the present application, the first guide rod 320 includes a support part 321 and a guide part 322, the shaft diameter of the support part 321 is greater than the shaft diameter of the guide part 322, and the guide part 322 is in interference fit with the first mounting hole 310. In this embodiment, the guide part 322 plays a guiding and positioning role when assembling the protection basket module 100. Since the guide part 322 is in interference fit with the first mounting hole 310, when the first guide rod 320 is inserted into the first mounting hole 310 at the four corners of the frame 200 of the vertically adjacent protection basket module 100, the guide part 322 is tightly fixed in the first mounting hole 310 by the friction force generated by the interference fit, ensuring the stability of the connection and preventing it from being easily loosened or falling off. The connection between the support part 321 and the guide part 322 forms a shaft shoulder 323, which can support the upper frame 200. The support part 321 plays a supporting and limiting role. The presence of the shaft shoulder 323 limits the depth of the first guide rod 320 inserted into the first mounting hole 310, ensures the accurate position of the protection basket module 100 when connected, and ensures the uniform spacing between adjacent modules, thereby ensuring the stability and regularity of the entire multi-layer protection basket structure. At the same time, the larger shaft diameter of the support part 321 can withstand certain external force, providing stronger structural support for the connection between the protection basket modules 100 and preventing the connection part from being damaged due to stress during use.

[0032] In some embodiments of the present application, a guide C corner 311 is arranged at the outer edge of the first mounting hole 310. Specifically, in this embodiment, the guide C corner 311 arranged at the outer edge of the first mounting hole 310 mainly plays a guiding and positioning role. During the process of inserting the first guide rod 320 into the first mounting hole 310, the guide C corner 311 can preliminarily guide the first guide rod 320. Since the guide C corner 311 has a certain inclined slope, when the first guide rod 320 approaches the first mounting hole 310, the slope of the guide C corner 311 will naturally guide the first guide rod 320 to smoothly enter the first mounting hole 310, reducing the possibility of hard collision between the first guide rod 320 and the edge of the first mounting hole 310, so that the first guide rod 320 can be more smoothly and accurately inserted into the guide hole.

[0033] In some embodiments of the utility model, the two sides of the length direction of frame 200 are respectively provided with handle 220. In this embodiment, the length direction refers to the direction determined by the longer side of frame 200. Generally, under the condition that the overall appearance structure of protective basket module 100 is rectangular, the length direction is along the longer side. In the production process of lithium battery, protective basket module 100 needs to be transferred between different stations, for example, from the cell storage area to the baking equipment, and then from the baking equipment to the next process after baking. The setting of handle 220 enables the staff to conveniently lift and transport protective basket module 100, reduces the labor intensity and improves the work efficiency. Compared with the case without handle 220, the staff does not need to hold or support protective basket module 100, which reduces the risk of falling and damaging the cell due to inconvenient operation. On the automatic production line, the design of handle 220 is also conducive to the integration and docking of protective basket module 100 and other equipment. Some automatic handling equipment can realize the automatic handling and feeding and discharging operation of the protective basket by grabbing handle 220, so that the whole production process is more smooth and efficient, and the automation level of the production process is improved.

[0034] In some embodiments of the utility model, the two sides of the width direction of frame 200 are respectively provided with reinforcing ribs 230. In the actual use process, the overall protective basket module 100 needs to bear a certain weight and external force impact. The setting of reinforcing ribs 230 significantly enhances the structural strength of frame 200 in the width direction, so that it can better bear the weight of lithium battery and itself, reduces the possibility of deformation and even damage of frame 200 due to stress, and prolongs the service life of protective basket module 100. For example, in the frequent handling and turnover process, reinforcing ribs 230 can effectively prevent frame 200 from twisting, cracking and other problems.

[0035] In some embodiments of the utility model, the bottom of frame 200 is provided with heat dissipation holes 240. In this embodiment, heat dissipation holes 240 can quickly and effectively dissipate the heat generated in the cell baking process, ensuring that the temperature around the lithium cell does not become too high. This helps to maintain the temperature uniformity of the cell during the baking process, improves the baking effect, and ensures the performance and quality of the lithium battery. For example, in a high-temperature baking environment, if there is no heat dissipation hole 240, heat will accumulate in the frame 200 of protective basket module 100, which may cause local overheating of the cell and affect the charge and discharge performance and life of the lithium battery. In addition, the continuous high-temperature environment not only affects the quality of the cell, but also damages the protective basket module 100 itself, accelerating the aging and deformation of the protective basket module 100. The existence of heat dissipation holes 240 reduces the temperature inside protective basket module 100, reduces the thermal effect of high temperature on frame 200, helps to prolong the service life of protective basket module 100, and reduces the equipment replacement cost.

[0036] In some embodiments of the present application, a guide R angle 204 is arranged on the slot 202. In this embodiment, the guide R angle 204 is arranged at the edge of the slot 202. When the first partition plate 210 is inserted into the slot 202, the guide R angle 204 plays a guiding role. Due to its smooth curve shape, compared with the sharp right-angled edge, it can guide the first partition plate 210 into the slot 202 more smoothly. The contact force during insertion is more evenly distributed, avoiding damage to the first partition plate 210 or difficulty in insertion due to local stress concentration.

[0037] In some embodiments of the present application, the protective basket module 100 further comprises a second partition plate 250, which is inserted into the frame 200, and the first partition plate 210 is perpendicular to the second partition plate 250. In this embodiment, the second partition plate 250 is arranged in the protective basket module 100 and perpendicular to the first partition plate 210, which greatly improves the utilization efficiency of the internal space of the protective basket. The first partition plate 210 preliminarily divides the internal space into multiple placement units 203 along the width direction of the frame 200, and the second partition plate 250 arranged vertically further subdivides these spaces. For example, the larger placement area divided by the first partition plate 210 can form smaller and more regular unit cells by the insertion of the second partition plate 250. This provides more choices for placing lithium battery cells of different specifications and sizes, and can flexibly arrange the placement of the cells according to actual needs, improving the adaptive ability of the protective basket module 100 to diversified cells.

[0038] In some embodiments of the present application, the protective basket module 100 is made of high-temperature-resistant insulating material. In this embodiment, the protective basket module 100 can be made of PEEK, PPS, FRP or CFRP. The cell baking process is usually carried out at a high temperature, and the protective basket module 100 needs to be in such a high-temperature environment for a long time. High-temperature-resistant materials can withstand the temperature required for baking without deformation, melting or performance degradation, ensuring that the protective basket maintains a stable structure and shape throughout the baking process, providing reliable support and protection for the cells. For example, the common baking temperature may reach tens of degrees Celsius or even higher, and ordinary materials may become soft and shrink at such temperatures, causing the protective basket module 100 to be unable to function normally, while high-temperature-resistant materials can withstand these high temperatures stably. Lithium batteries are energy storage devices, and their electrical properties are detected and processed during production. Insulating materials can effectively prevent the conduction of electric current, preventing leakage between the cells and the protective basket module 100 and between different cells, avoiding safety accidents caused by electrical short circuits, and ensuring the safety of operating personnel and the normal operation of production equipment. Especially when multiple cells are placed in the protective basket module 100 at the same time, the insulating material can play a good isolation role, ensuring the electrical independence between the cells.

[0039] In some embodiments of the utility model, quick detach structure 300 still includes extension rod 330, extension rod 330 is provided with second mounting hole 331, and the side, away from second mounting hole 331, of extension rod 330 is provided with second guide rod 332. In the embodiment, extension rod 330 is an optional configuration, and when the storage of some high height battery cell, through the design of extension rod 330, the containing space of the frame is expanded by extending outward from the main body of quick detach structure 300. The setting of extension rod 330 breaks through the space limitation of the original quick detach structure, and provides more possibilities for the connection of protection basket module 100.

[0040] The utility model has been described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A modular low temperature high power lithium battery baking shield basket, characterized in that, The application relates to a protective basket module (100) which is detachably connected together in a vertical direction through a quick-release structure (300), wherein the protective basket module (100) comprises a frame (200) and M first partition plates (210), the frame (200) is internally provided with an accommodating space (201), the inner circumferential side of the frame (200) is provided with a plurality of insertion grooves (202) on both sides in the width direction, the first partition plates (210) are inserted into the insertion grooves (202) and divide the accommodating space (201) into M+1 placing units (203), wherein N>=2 and M>=1, the quick-release structure (300) is provided with a first mounting hole (310) at each corner of the frame (200), the side, away from the first mounting hole (310), of the quick-release structure (300) is provided with a first guide rod (320), and the first guide rod (320) of the protective basket module (100) can be inserted into the first mounting hole (310) adjacent in the vertical direction.

2. The modular low temperature high power lithium battery baking protection basket according to claim 1, characterized in that, The first guide rod (320) comprises a supporting portion (321) and a guide portion (322), the shaft diameter of the supporting portion (321) is larger than the shaft diameter of the guide portion (322), and the guide portion (322) and the first mounting hole (310) are in interference fit.

3. The modular low temperature high power lithium battery baking protection basket according to claim 2, characterized in that, The outer edge of the first mounting hole (310) is provided with a guide C corner (311).

4. The modular low temperature high power lithium battery bake-out guard basket of claim 1, wherein, The frame (200) is respectively provided with a handle (220) on both sides in the length direction.

5. The modular low temperature high power lithium battery bake-out guard basket of claim 1, wherein, The frame (200) is respectively provided with a reinforcing rib (230) on both sides in the width direction.

6. The modular low temperature high power lithium battery bake-out guard basket of claim 1, wherein, The bottom of the frame (200) is provided with a heat dissipation hole (240).

7. The modular low temperature high power lithium battery bake-out guard basket of claim 1, wherein, The insertion groove (202) is provided with a guide R corner (204).

8. The modular low temperature high power lithium battery bake-out guard basket of claim 1, wherein, The protective basket module (100) further comprises a second partition plate (250), the second partition plate (250) is inserted into the frame (200), and the first partition plate (210) is perpendicular to the second partition plate (250).

9. The modular low temperature high power lithium battery bake-out guard basket of claim 1, wherein, The protective basket module (100) is made of high-temperature-resistant insulating material.

10. The modular low temperature high power lithium battery bake-out guard basket of claim 1, wherein, The quick-release structure (300) further comprises an extension rod (330), the extension rod (330) is provided with a second mounting hole (331), and the side, away from the second mounting hole (331), of the extension rod (330) is provided with a second guide rod (332).

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