Battery slurry demagnetizing device
By introducing a cover plate and clamping mechanism into the lithium battery slurry demagnetizing device, the magnetic rod can be quickly and completely picked up and put away, solving the problems of cumbersome operation and safety risks in the existing technology, and improving work efficiency and safety.
Patent Information
- Application Number
- CN202520172436.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing lithium battery slurry demagnetization devices are cumbersome to operate and pose safety risks during the replacement and cleaning of magnetic rods. In particular, inaccurate alignment of the magnetic rods during disassembly and assembly can easily lead to hand injuries.
A battery slurry demagnetizing device was designed. By adding a cover plate and a clamping mechanism to the magnetic rods, the clamping mechanism fixes all the magnetic rods to the cover plate, and the magnetic rods are picked up and put down as a whole by a drive mechanism, avoiding individual disassembly and assembly. Combined with a U-shaped flow tube design, the contact time between the slurry and the magnetic rods is extended.
It enables rapid overall loading and unloading of magnetic rods, saving maintenance time and labor costs, improving operational safety, preventing hand injuries, and increasing work efficiency.
Smart Images

Figure CN223842705U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery slurry demagnetization technology, and in particular to a battery slurry demagnetization device. Background Technology
[0002] The quality of the slurry directly affects the overall performance and quality of lithium batteries. However, during the production process, some iron, nickel, and zinc metal impurities are inevitably present. These magnetic substances can not only cause coating lines, particle scratches, and poor electrode appearance during the coating stage, thereby increasing the amount of slurry scrap, but may also affect the electrochemical performance during battery charging and discharging, and even endanger the safety performance of the battery. Therefore, it is necessary to use a demagnetizing device to remove magnetic substances from the slurry. The main method is to use a magnetic rod on the demagnetizing device to adsorb the magnetic substances in the slurry.
[0003] After prolonged use, some demagnetizing devices accumulate a large amount of magnetic impurities on the magnetic rods, affecting the demagnetizing effect. The magnetic rods need to be removed from the flow tube of the demagnetizing device for cleaning. Disassembling and assembling the magnetic rods is quite troublesome, and if the alignment is inaccurate during disassembly and assembly, the magnetic rods may adhere to the sleeve, causing injury to the workers' hands. Existing demagnetizing devices do not have a structure that allows the magnetic rods to be removed from the flow tube in one go. Utility Model Content
[0004] The purpose of this utility model is to provide a battery slurry demagnetizing device. By adding a cover plate and a clamping mechanism to the magnetic rods, all the magnetic rods can be picked up and put in one go, avoiding the tedious process of individual disassembly and assembly, and saving maintenance time and labor costs.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] This utility model discloses a battery slurry demagnetizing device, comprising multiple interconnected flow tubes for holding slurry and magnetic rods inserted in the flow tubes; characterized in that it further comprises a cover plate that can seal and cover all the openings of the flow tubes; wherein: the magnetic rods penetrate the cover plate, and the two are connected together by a clamping mechanism.
[0007] A further embodiment: The clamping mechanism includes two clamping blocks clamping the outer periphery of the magnetic rod and a screw connecting the two clamping blocks.
[0008] A further embodiment: the clamping mechanism also includes a guide rod connecting the two clamping blocks.
[0009] A further embodiment: the contact surface between the clamping block and the magnetic rod is an arc-shaped surface.
[0010] A further embodiment: the clamping mechanism further includes an elastic pressure member disposed on the inner side of the arc-shaped surface.
[0011] A further embodiment: The elastic pressure member includes an arc-shaped pressure plate and multiple elastic elements connected between the arc-shaped surface and the arc-shaped pressure plate.
[0012] A further option includes a drive mechanism for moving the cover plate closer to or away from the flow tube.
[0013] A further option: the driving mechanism is a telescopic cylinder.
[0014] A further option: the flow tube is a U-shaped tube.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention connects all magnetic rods together via a cover plate, facilitating one-step loading and unloading. Each magnetic rod is secured to the cover plate by a clamping mechanism. Releasing the clamps allows for cleaning. A drive mechanism controls the opening and closing of the cover plate over the flow tube, enabling rapid, complete loading and unloading of the magnetic rods. This avoids the tedious process of individually disassembling each rod, saving maintenance time and labor costs. It effectively prevents hand injuries caused by misalignment of the magnetic rods during disassembly and assembly, ensuring operator safety and demonstrating a dual advantage in improving work efficiency and ensuring operational safety. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the clamping mechanism in this utility model;
[0019] In the diagram: 1-flow cylinder, 2-magnetic rod, 3-cover plate, 4-clamping mechanism, 41-clamping block, 42-screw, 43-guide rod, 44-elastic pressure piece, 441-arc pressure plate, 442-elastic piece, 5-drive mechanism. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] Please see Figure 1 In this embodiment, a battery slurry demagnetizing device includes several flow tubes 1 for slurry flow. All flow tubes 1 are interconnected, and a magnetic rod 2 is inserted into the opening of each flow tube 1. A cover plate 3 is provided on the top of the flow tube 1, and the magnetic rod 3 passes through a circular hole in the cover plate 3, connecting each magnetic rod 2 into a whole. A clamping mechanism 4 is provided on the outer periphery of the magnetic rod 3 above the cover plate 3, which fixes the magnetic rod 3 to the cover plate 3. When it is necessary to clean the magnetic rod 2, the clamping mechanism 4 can be released from locking the magnetic rod 2.
[0023] Please continue reading. Figure 2 The clamping mechanism 4 includes two opposing clamping blocks 41, a screw 42 threadedly connected to the two clamping blocks 41, and a guide rod 43 parallel to the screw 42 and movably connected to the two clamping blocks 41. By turning the screw 42, the two clamping blocks 41 are moved closer or further apart to control the clamping and loosening of the magnetic rod 2. The clamping surface of the clamping block 41 is an arc-shaped surface that conforms to the outer contour of the magnetic rod 2 to improve the stability of the clamping.
[0024] Furthermore, the clamping mechanism 4 also includes an elastic pressure member 44 disposed on the inner side of the clamping surface of the clamping block 41. The elastic pressure member 44 is used to elastically limit the magnetic rod 2. The elastic pressure member 44 includes an arc-shaped pressure plate 441 mounted on the clamping surface of the clamping block 41, and an elastic member 442, i.e., a spring, disposed between the arc-shaped pressure plate 441 and the clamping surface. When the top end of the magnetic rod 2 is clamped between the two clamping blocks 41, the arc-shaped pressure plate 441 on the side of the two clamping blocks 41 that is close to each other abuts against the top end of the magnetic rod 2, and the elastic member 442 connected to the arc-shaped pressure plate 441 is compressed. Through the elastic mechanism of the elastic member 442, excessive clamping force can be prevented from damaging the magnetic rod 2, thus playing a certain protective role.
[0025] It should be noted that the clamping mechanism 4 not only fixes the magnetic rod 2 on the cover plate 3, but also has a radial limiting effect on the magnetic rod 2 when clamping it, so as to prevent it from shifting when inserted into the flow tube 1 in one step.
[0026] Furthermore, it also includes a drive mechanism 5 for driving the cover plate 3 away from or towards the flow tube 1. This drive mechanism 5 is a telescopic cylinder, with the telescopic end abutting against the bottom of the cover plate 3 and the non-telescopic end abutting against the upper surface of the base plate on which the flow tube 1 is placed. When it is necessary to disassemble the magnetic rods 2 inside the flow tube 1, simply drive the cover plate 3 away from the flow tube 1 through the telescopic cylinder, which will simultaneously pull all the magnetic rods 2 fixed on the cover plate 3 out of the flow tube 1. Then, by reversing the screw 42, the two clamping blocks 41 will move away from each other along the guide rod 43, thereby releasing the clamping of the magnetic rods 2 and removing the magnetic rods 2 from the cover plate 3 for cleaning.
[0027] Furthermore, the flow tube 1 is a U-shaped tube. The U-shaped design not only facilitates the insertion and removal of the magnetic rod, but also extends the flow path of the slurry, increasing the contact time between the slurry and the magnetic rod 2, thereby improving the demagnetization effect.
[0028] When cleaning the magnetic rods is required, activate the telescopic cylinder to extend its telescopic end, causing the cover plate to move upward and separate from the flow tube. At this time, all magnetic rods will be pulled out of the flow tube as a whole. Control the telescopic cylinder to retract. Then, screw 42 is turned one by one to release the clamping block 41 from the magnetic rod 2, allowing the magnetic rod 2 to be cleaned. After cleaning, insert the magnetic rod 2 one by one into the corresponding round hole on the cover plate 3, and then fit the clamping mechanism 4 onto the magnetic rod 2 one by one. Pre-tighten the screw 42 to clamp the magnetic rod 2, which simultaneously achieves the positioning of the magnetic rod 2. Move the cover plate 3 and the magnetic rod 2 horizontally downward as a whole, so that the magnetic rod 2 is inserted into the corresponding flow tube 1, thus achieving one-step installation of all magnetic rods 2.
[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
[0030] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.
Claims
1. A battery slurry demagnetizing device, comprising a plurality of interconnected flow tubes (1) for holding slurry, and magnetic rods (2) inserted into the flow tubes (1); characterized in that, It also includes a cover plate (3) that can seal and cover all openings of the flow tube (1); wherein: the magnetic rod (2) passes through the cover plate (3), and the two are connected together by a clamping mechanism (4).
2. The battery slurry demagnetizing device according to claim 1, characterized in that, The clamping mechanism (4) includes two clamping blocks (41) clamping the outer periphery of the magnetic rod (2) and a screw (42) connecting the two clamping blocks (41).
3. The battery slurry demagnetizing device according to claim 2, characterized in that, The clamping mechanism (4) also includes a guide rod (43) connecting the two clamping blocks (41).
4. The battery slurry demagnetizing device according to claim 2, characterized in that, The contact surface between the clamp (41) and the magnetic rod (2) is an arc-shaped surface.
5. The battery slurry demagnetizing device according to claim 4, characterized in that, The clamping mechanism (4) also includes an elastic pressure member (44) disposed on the inner side of the arc-shaped surface.
6. The battery slurry demagnetizing device according to claim 5, characterized in that, The elastic pressure member (44) includes an arc-shaped pressure plate (441) and a plurality of elastic members (442) connected between the arc-shaped surface and the arc-shaped pressure plate (441).
7. The battery slurry demagnetizing device according to claim 1, characterized in that, It also includes a drive mechanism (5) for driving the cover plate (3) closer to or away from the flow tube (1).
8. The battery slurry demagnetizing device according to claim 7, characterized in that, The drive mechanism (5) is a telescopic cylinder.
9. The battery slurry demagnetizing device according to claim 1, characterized in that, The flow tube (1) is a U-shaped tube.