Battery diaphragm drying device
By setting a negative pressure groove and a sponge structure on the drying roller, and combining heating and negative pressure adsorption, the problem of low drying efficiency of lithium battery separators is solved, and a high-efficiency separator drying effect with no residual water stains is achieved.
Patent Information
- Application Number
- CN202423222439.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing technologies, the drying efficiency of lithium battery separators is low, and water vapor and water droplets are difficult to control, resulting in water stains remaining on the separator surface and affecting the drying effect.
By using a drying roller with a negative pressure groove and a sponge structure, combined with heating and negative pressure adsorption, the membrane can be efficiently dried and impurities removed through sponge compression and negative pressure groove adsorption on the drying roller, along with a removal plate and a collection box.
It improves the drying efficiency of the diaphragm, ensures that there are no residual water stains on the diaphragm surface, enhances the drying effect, removes impurities, and avoids water vapor accumulation.
Smart Images
Figure CN223580512U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to diaphragm drying device technical field, especially in a kind of battery diaphragm drying device. BACKGROUND
[0002] In the structure of lithium battery, diaphragm is one of key inner layer components. The main function of lithium battery diaphragm is to separate the positive and negative poles of battery, to prevent the short circuit of two poles, and also has the function of allowing electrolyte ions to pass through.
[0003] The process steps for producing diaphragm currently mainly include: mixing raw materials extrusion, cooling, longitudinal / lateral stretching, extraction hole drawing, washing process, drying treatment, heat setting and winding. Usually, the drying treatment commonly used way is to evaporate water on diaphragm semi-finished product by heating through roller, and then remove water vapor by blowing.
[0004] But the drying efficiency is slow by ordinary blowing and heating, the direction of blowing cannot be controlled, water vapor and water droplets will move uncontrollably under the influence of wind force, it is difficult to ensure that the residual water vapor on the surface of diaphragm is eliminated. INVENTION CONTENTS
[0005] The main purpose of the utility model is to provide a kind of battery diaphragm drying device, which can effectively solve the technical problems in the background art.
[0006] To achieve the above purpose, the technical scheme adopted by the utility model is:
[0007] A kind of battery diaphragm drying device, including rack, multiple drying mechanisms are arranged in the rack, the drying mechanism includes drying roller, the drying roller is heating roller, negative pressure groove is opened on the drying roller, negative pressure cylinder is arranged in the negative pressure groove, sponge is arranged on the drying roller.
[0008] As a further scheme of the utility model, two rotating grooves are opened on the drying roller, gear one is rotatably installed on the two rotating grooves, and the gear one is fixedly connected with the sponge.
[0009] As a further scheme of the utility model, rotating roller is rotatably installed on the rack, gear two is fixedly installed on the rotating roller, and the gear two is meshingly connected with the gear one.
[0010] As a further scheme of the utility model, sliding block is slidably installed in the negative pressure groove, bidirectional screw rod is rotatably installed on one end surface of the drying roller, and the bidirectional screw rod is threadedly connected with the sliding block.
[0011] As a further scheme of the utility model, multiple negative pressure holes are opened on the surface of the negative pressure cylinder, and the multiple negative pressure holes are arrayed distributed.
[0012] As a further scheme of the utility model, a plurality of impurity removing plates are installed on the rotating roller, the plurality of impurity removing plates are distributed in a circular array, and a collecting box is inserted on the rack.
[0013] As a further scheme of the utility model, a transmission belt is connected between the two rotating rollers, a motor is installed on the rack, and the output shaft of the motor is fixedly connected with the rotating roller.
[0014] The utility model has the advantages of the following:
[0015] The diaphragm is extruded by the sponge and subjected to the adsorption force of negative pressure when passing through the drying mechanism, and the drying roller is heated, so that the moisture on the film can be quickly dried, and no water stains are left on the surface of the diaphragm, thereby improving the diaphragm drying efficiency and effect.
[0016] The impurities and moisture on the sponge are extruded and scraped off by the impurity removing plate when the sponge rotates and adsorbs, so that the sponge is kept clean. The removed impurities and moisture are discharged into the collecting box to avoid falling on the diaphragm again. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a whole structure schematic view of the battery diaphragm drying device of the utility model;
[0018] Figure 2 It is a working schematic view of the battery diaphragm drying device of the utility model;
[0019] Figure 3 It is a drying mechanism schematic view of the battery diaphragm drying device of the utility model;
[0020] Figure 4 It is a part split structure schematic view of the battery diaphragm drying device of the utility model; Figure 3
[0021] Figure 5 It is a drying roller cross section structure schematic view of the battery diaphragm drying device of the utility model.
[0022] In the drawing: 1, rack; 2, diaphragm; 3, drying mechanism;
[0023] 31, drying roller; 32, negative pressure cylinder; 321, negative pressure hole; 33, negative pressure groove; 34, rotating groove; 35, gear one; 36, sponge; 37, rotating roller; 38, gear two; 39, sliding block; 310, bidirectional screw rod; 311, handle;
[0024] 4, impurity removing plate; 5, collecting box; 6, motor; 7, transmission belt. DETAILED DESCRIPTION
[0025] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0026] Please refer to Figures 1-5 A battery diaphragm drying device, including frame 1, frame 1 is provided with drying mechanism 3, for extruding, adsorbing, heating drying to diaphragm 2, so that diaphragm 2 can be dried.
[0027] In the embodiment, drying mechanism 3 includes two drying rollers 31, two drying rollers 31 are fixedly installed on the inner wall of frame 1, and drying roller 31 is a heating roller, which can heat and dry diaphragm 2.
[0028] Rotary groove 34 is formed on drying roller 31, gear one 35 is rotatably installed in rotary groove 34, sponge 36 is fixedly installed between two gear ones 35, and sponge 36 is used to extrude diaphragm 2, so as to adsorb impurities and water on diaphragm 2.
[0029] Negative pressure groove 33 is formed on drying roller 31, negative pressure cylinder 32 is fixedly connected to one end of drying roller 31, a plurality of negative pressure holes 321 are formed on negative pressure cylinder 32 in an array, negative pressure cylinder 32 is connected to air pump (not shown in the figure) through pipeline, and negative pressure cylinder 32 is located in negative pressure groove 33. The air pump makes negative pressure cylinder 32 generate a certain negative pressure suction force through negative pressure holes 321, so that impurities and moisture on diaphragm 2 are adsorbed on sponge 36, which plays a role in auxiliary cleaning and drying diaphragm 2, and avoids that moisture and impurities are left on the surface of diaphragm 2.
[0030] Two sliding blocks 39 are slidably installed in negative pressure groove 33, bidirectional screw rod 310 is rotatably installed at one end of drying roller 31, bidirectional screw rod 310 is threadedly connected between sliding blocks 39, bidirectional screw rod 310 drives two sliding blocks 39 to relatively or oppositely displace, so as to adapt to diaphragm 2 of different widths, so that the negative pressure suction force received by diaphragm 2 of different widths is uniform and cannot escape.
[0031] Rotary roller 37 is rotatably installed in frame 1, gear two 38 is fixedly installed on rotary roller 37, gear two 38 and gear one 35 are meshingly connected, one end of rotary roller 37 is fixedly connected to motor 6, two adjacent rotary rollers 37 are connected through transmission belt 7, motor 6 drives rotary roller 37 to rotate, rotary roller 37 drives sponge 36 to rotate through the meshing between gear one 35 and gear two 38, which plays a role in extruding and drying diaphragm 2 while conveying diaphragm 2.
[0032] A plurality of circular array distribution of impurity removal plates 4 are fixedly installed on the surface of the rotating roller 37, and the impurity removal plates 4 are in contact with the sponge 36, so that the impurities adhered to the sponge 36 can be removed. The bottom end of the rotating roller 37 in the rack 1 is plugged into the collection box 5, which is used to collect the impurities removed by the impurity removal plate 4, so as to avoid the impurities falling on the diaphragm 2 again.
[0033] The rack 1 is an open structure, so that when the drying roller 31 evaporates water vapor, the water vapor is directly discharged to the outside environment, avoiding the problem of water stains left on the surface of the diaphragm 2 caused by the accumulation of water vapor.
[0034] It should be noted that the utility model is a kind of battery diaphragm drying device, when using, according to the width of diaphragm 2, rotating handle 311, handle 311 drives two-way screw rod 310 to rotate, so that two sliding blocks 39 relatively or oppositely slide along negative pressure groove 33, so that sliding block 39 is located on the two sides of diaphragm 2, diaphragm 2, sliding block 39 and negative pressure groove 33 form a space.
[0035] Start motor 6, motor 6 drives rotating roller 37 to rotate, rotating roller 37 drives gear two 38 to rotate, gear two 38 and gear one 35 are engaged to drive sponge 36 to rotate, by the mutual engagement between gear, the sponge 36 on the upper and lower drying roller 31 rotates in opposite directions. So as to synchronously press the upper and lower surfaces of diaphragm 2, absorb water and adhere impurities, play the role of drying and removing impurities.
[0036] Start air pump, air pump constantly inhales air through negative pressure hole 321 on negative pressure cylinder 32, so that diaphragm 2, sliding block 39 and negative pressure groove 33 form a space in negative pressure state, so that the water and impurities on diaphragm 2 can be more completely adsorbed on sponge 36, and the effect of enhancing drying effect is achieved.
[0037] Sponge 36 continuously rotates, and constantly passes through impurity removal plate 4, so that the impurities on the surface of sponge 36 are removed and fall into collection box 5, avoiding the impurities falling on the surface of diaphragm 2 again. At the same time, since the drying roller 31 is a heating roller, the water adsorbed on the sponge 36 can be evaporated while enhancing the drying effect, so that the sponge 36 can continuously press and adsorb the water on the diaphragm 2, and the drying effect is better.
[0038] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A battery separator drying apparatus comprising a frame (1), characterized in that: The rack (1) is provided with a plurality of drying mechanisms (3), the drying mechanism (3) comprises a drying roller (31), the drying roller (31) is a heating roller, a negative pressure groove (33) is formed in the drying roller (31), a negative pressure cylinder (32) is arranged in the negative pressure groove (33), and a sponge (36) is arranged on the drying roller (31).
2. The battery separator drying apparatus of claim 1, wherein: Two rotating grooves (34) are formed in the drying roller (31), gear one (35) is rotatably installed on the two rotating grooves (34), and the gear one (35) is fixedly connected with the sponge (36).
3. The battery separator drying apparatus of claim 1, wherein: The rack (1) is rotatably provided with a rotating roller (37), gear two (38) is fixedly installed on the rotating roller (37), and the gear two (38) is meshedly connected with the gear one (35).
4. The battery separator drying apparatus of claim 1, wherein: The sliding block (39) is slidably installed in the negative pressure groove (33), the bidirectional screw rod (310) is rotatably installed on one end surface of the drying roller (31), and the bidirectional screw rod (310) is threadedly connected with the sliding block (39).
5. The battery separator drying apparatus of claim 1, wherein: A plurality of negative pressure holes (321) are formed in the surface of the negative pressure cylinder (32), and the plurality of negative pressure holes (321) are arrayed.
6. The battery separator drying apparatus of claim 3, wherein: A plurality of impurity removal plates (4) are installed on the rotating roller (37), the plurality of impurity removal plates (4) are circularly arrayed, and the rack (1) is inserted with a collecting box (5).
7. The battery separator drying apparatus of claim 3, wherein: The transmission belt (7) is connected between the two rotating rollers (37), the motor (6) is installed on the rack (1), and the output shaft of the motor (6) is fixedly connected with the rotating roller (37).