Slurry demagnetizing device and slurry demagnetizing equipment

Abstract

The utility model belongs to the technical field of batteries, and discloses a slurry demagnetizing device and slurry demagnetizing equipment, the slurry demagnetizing device comprises a demagnetizing rod body and a driving part, the demagnetizing rod body is hollow, the surface of the demagnetizing rod body is provided with a hollow structure, and the driving part is connected with the demagnetizing rod body and is used for driving the demagnetizing rod body to rotate. In the actual working process, due to the fact that the demagnetizing rod body is connected with the driving piece, the driving piece can drive the demagnetizing rod body to rotate after being started. Due to the fact that the demagnetizing rod body is arranged in a hollow mode and the surface of the demagnetizing rod body is provided with the hollowed-out structure, the demagnetizing rod body can make full contact with the slurry when rotating in the slurry, the adsorption capacity of the demagnetizing rod body to metal particles in the slurry is improved, and therefore the metal particles in the slurry are thoroughly removed.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a slurry demagnetization device and a slurry demagnetization device. Background Art

[0002] In the production process of lithium batteries, as one of the key components of the battery, the quality of the separator directly affects the performance and safety of the battery. In the existing production process of coated separators, it is necessary to mix polymer raw materials with solvents to prepare a slurry, and then coat it on the surface of a substrate to form a separator. In this process, due to the metal parts of the raw materials or equipment, tiny metal particles may be introduced. These metal particles remaining on the separator after coating will seriously affect the performance of the battery and even cause safety problems such as short circuits.

[0003] Currently, the removal of metal particles is generally achieved by setting a fixed magnetic rod on the slurry pipeline to adsorb the metal particles. However, the existing magnetic rods have limited adsorption effect on metal particles. Summary of the Utility Model

[0004] The first object of the utility model is to provide a slurry demagnetization device, which has a good adsorption effect on metal particles and can preferably remove the metal particles in the slurry.

[0005] The second object of the utility model is to provide a slurry demagnetization equipment, which has a good adsorption effect on metal particles and can preferably remove the metal particles in the slurry.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] The utility model discloses a slurry demagnetization device, including: a demagnetization rod body, the demagnetization rod body is hollow, and the surface of the demagnetization rod body has a hollow structure; a driving member, the driving member is connected to the demagnetization rod body and is used to drive the demagnetization rod body to rotate.

[0008] In some embodiments, the ratio of the area of the hollow structure to the surface area of the demagnetization rod body is less than or equal to 0.5.

[0009] In some embodiments, the hollow structure includes a plurality of through holes, and the plurality of through holes are arranged in multiple rows and multiple columns.

[0010] In some specific embodiments, the aperture of each through hole is 0.1 mm - 5 mm.

[0011] In some embodiments, the driving member has a power output end, and the slurry demagnetization device further includes a coupling, one end of the coupling is connected to the demagnetization rod body, and the other end is connected to the power output end of the driving member.

[0012] In some embodiments, the slurry demagnetizing device further includes a mounting base having a mounting cavity. First and second avoidance holes are respectively provided at two ends of the mounting cavity. The coupling is disposed in the mounting cavity. The driving member is supported on the mounting base, and a power output end of the driving member passes through the first avoidance hole and is connected to the coupling. The demagnetizing rod body passes through the second avoidance hole and is connected to the coupling.

[0013] In some specific embodiments, the mounting base has a supporting convex ring disposed around the first avoidance hole. The supporting convex ring is used to support the driving member and is connected to the driving member through a connecting member.

[0014] In some embodiments, the demagnetizing rod body is provided with a docking end, and an elastic member is disposed in the docking end. The elastic member is used to press the demagnetizing rod body against the coupling.

[0015] The present utility model also discloses a slurry demagnetizing device, including a cavity and the slurry demagnetizing device described above. The cavity has a plurality of mounting holes, and at least one of the slurry demagnetizing devices is mounted in each mounting hole.

[0016] In some embodiments, the cavity has a fixed flange disposed around the mounting hole; the slurry demagnetizing device is threadedly connected to the fixed flange; or: the slurry demagnetizing device has a mounting flange for docking with the fixed flange.

[0017] Beneficial effects of the slurry demagnetizing device of the present utility model: During actual operation, since the demagnetizing rod body is connected to the driving member, the driving member can drive the demagnetizing rod body to rotate after being started. Since the demagnetizing rod body is hollow and has a hollow-out structure on its surface, when the demagnetizing rod body rotates in the slurry, it can be in full contact with the slurry, improving the adsorption ability of the demagnetizing rod body to metal particles in the slurry, thereby removing the metal particles in the slurry more thoroughly.

[0018] Beneficial effects of the slurry demagnetizing device of the present utility model: During actual operation, after the slurry demagnetizing device is inserted into the mounting hole, when the slurry passes through the cavity and the slurry demagnetizing device is started, since the demagnetizing rod body of the slurry demagnetizing device is hollow and has a hollow-out structure on its surface, when the demagnetizing rod body rotates in the slurry, it can be in full contact with the slurry, improving the adsorption ability of the demagnetizing rod body to metal particles in the slurry, thereby removing the metal particles in the slurry more thoroughly.

[0019] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the slurry demagnetization device according to an embodiment of the present utility model;

[0021] Figure 2 It is a schematic sectional view of the slurry demagnetization device according to an embodiment of the present utility model;

[0022] Figure 3 is Figure 2 An enlarged schematic view of the circled area A;

[0023] Figure 4 It is a schematic structural diagram of a slurry demagnetization device according to an embodiment of the present utility model;

[0024] Figure 5 It is a schematic structural diagram of another slurry demagnetization device according to an embodiment of the present utility model.

[0025] Reference numerals:

[0026] 100, slurry demagnetization device; 110, demagnetization rod body; 111, hollow structure; 112, docking end; 1121, docking shaft; 120, driving member; 121, power output end; 130, coupling; 140, mounting seat; 141, mounting cavity; 142, supporting convex ring; 143, mounting flange;

[0027] 200, cavity; 210, fixed flange. Detailed implementation manners

[0028] The following further describes the present utility model in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model are shown in the drawings, rather than all structures.

[0029] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] . In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0031] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] Next, refer to Figures 1 - 3 to describe the structure of the slurry demagnetizing device 100 according to the embodiment of the present utility model.

[0033] The present utility model discloses a slurry demagnetizing device 100. Refer to Figure 1 and Figure 2 As shown, the slurry demagnetizing device 100 includes a demagnetizing rod body 110 and a driving member 120. The demagnetizing rod body 110 is provided with a hollow interior, and the surface of the demagnetizing rod body 110 has a hollow-out structure 111. The driving member 120 is connected to the demagnetizing rod body 110. It can be understood that during the actual working process, since the demagnetizing rod body 110 is connected to the driving member 120, the driving member 120 can drive the demagnetizing rod body 110 to rotate after being started. Since the demagnetizing rod body 110 is provided with a hollow interior and the surface of the demagnetizing rod body 110 has a hollow-out structure 111, the demagnetizing rod body 110 can be in full contact with the slurry when rotating in the slurry, improving the adsorption ability of the demagnetizing rod body 110 to the metal particles in the slurry, and thus removing the metal particles in the slurry more thoroughly. In this embodiment, the driving member 120 is a rotating motor. Of course, the driving member 120 can also be selected as other rotating driving sources according to the actual situation.

[0034] In some embodiments, the ratio of the area of the hollow structure 111 to the surface area of the magnetic rod body 110 excluding the magnetic rod body 110 is less than or equal to 0.5. It can be understood that when the ratio of the area of the hollow structure 111 to the surface area of the magnetic rod body 110 excluding the magnetic rod body 110 is less than or equal to 0.5, it is possible to increase the contact area between the magnetic rod body 110 and the slurry as much as possible on the premise of ensuring the strength of the magnetic rod body 110, thereby improving the adsorption capacity of the magnetic rod body 110 for metal particles in the slurry.

[0035] In some embodiments, the hollow structure 111 includes a plurality of through holes. It can be understood that by providing a plurality of through holes as the hollow structure 111, it is possible to increase the contact area between the magnetic rod body 110 and the slurry as much as possible when the magnetic rod body 110 rotates in the slurry, thereby improving the adsorption capacity of the magnetic rod body 110 for metal particles in the slurry.

[0036] Optionally, there are various arrangements of the plurality of through holes. In a specific embodiment, the plurality of through holes are arranged in multiple rows and columns; in a specific embodiment, the plurality of through holes are arranged in a circular array; in a specific embodiment, the plurality of through holes are arranged in a staggered manner along the axial and circumferential directions of the magnetic rod body 110.

[0037] In some specific embodiments, the aperture of each through hole is 0.1 mm - 5 mm. Optionally, the aperture of each through hole can be 0.1 mm, 0.25 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm. The aperture of each through hole can also be selected as other values within 0.1 mm - 5 mm according to actual needs and is not limited to the above examples.

[0038] It should be supplemented here that in other embodiments of the present invention, the hollow structure 111 can also be an opening with a part of the outer periphery attached to the magnetic rod body 110, such as an opening made by punching, direct bending, etc. As long as the hollow structure 111 can increase the effective area of contact between the magnetic rod body 110 and the slurry, the shape, size, and arrangement of the hollow structure 111 can be adjusted according to actual needs.

[0039] In some embodiments, referring to Figure 3 As shown, the driving member 120 has a power output end 121; the slurry demagnetization device 100 further includes a coupling 130. One end of the coupling 130 is connected to the magnetic rod body 110, and the other end is connected to the power output end 121 of the driving member 120. It can be understood that by connecting the driving member 120 and the magnetic rod body 110 through the coupling 130, it is convenient to connect and disassemble the driving member 120 and the magnetic rod body 110.

[0040] Optionally, in addition to the docking end 112 of the magnetic bar body 110 having a solid setting, the docking end 112 has a docking shaft 1121 that cooperates with the coupling 130. It can be understood that by providing the docking end 112 at one end of the magnetic bar body 110, and the docking end 112 having the docking shaft 1121 that cooperates with the coupling 130, the connection stability between the magnetic bar body 110 and the coupling 130 can be ensured, and the phenomenon of the connection position between the magnetic bar body 110 and the coupling 130 breaking during the actual working process can be avoided.

[0041] Optionally, an elastic member is provided inside the docking end 112, and the elastic member presses the magnetic bar body 110 against the coupling 130. It can be understood that there is a slider assembly inside the docking end 112, and the slider assembly contains an elastic member, which can facilitate the maintenance of the pressing state between the magnetic bar body 110 and the coupling 130. By overcoming the acting force of the elastic member, the release of the pressing state can also be facilitated, so as to realize the quick insertion and disconnection between the magnetic bar body 110 and the coupling 130, which is more convenient in operation and beneficial to improving the operation efficiency. It should be added that the specific structure of the docking end 112 with an elastic member can be obtained according to the existing technology.

[0042] In some embodiments, as shown in Figure 3 the slurry demagnetizing device 100 further includes a mounting seat 140. The mounting seat 140 has a mounting cavity 141. A first avoidance hole and a second avoidance hole are respectively provided at both ends of the mounting cavity 141. The coupling 130 is arranged in the mounting cavity 141. The driving member 120 is supported on the mounting seat 140, and the power output end 121 of the driving member 120 passes through the first avoidance hole and is connected to the coupling 130. The magnetic bar body 110 passes through the second avoidance hole and is connected to the coupling 130. It can be understood that protecting the coupling 130 inside the mounting seat 140 can protect the connection position between the power output end 121 of the driving member 120 and the coupling 130. The connection position between the coupling 130 and the magnetic bar body 110 is protected in a cavity, which is beneficial to ensuring the working reliability of the slurry demagnetizing device 100, reducing the probability of its failure, and extending its service life. In addition, the mounting seat 140 can also be used as a support structure for the driving member 120, and an external bracket does not need to be used when the slurry demagnetizing device 100 is in use, thus facilitating the use of the slurry demagnetizing device 100.

[0043] In some specific embodiments, the mounting base 140 has a support convex ring 142 disposed around the first avoidance hole. The support convex ring 142 is used to support the driving member 120 and is connected to the driving member 120 through a connecting member. It can be understood that during the assembly process, the driving member 120 is attached to the support convex ring 142, and then the connecting member passes through the connection hole on the support convex ring 142 and is fixedly connected to the driving member 120. This connection method not only facilitates the assembly of the mounting base 140 and the driving member 120 but also improves the connection strength between the mounting base 140 and the driving member 120, ensuring the stability of the driving member 120. Optionally, the connecting member is a screw, a pin, or a rivet. Of course, in other embodiments of the present invention, the mounting base 140 can also be directly bonded or welded to the driving member 120, and the mounting base 140 and the driving member 120 can also be connected through other structures such as snap fasteners.

[0044] Next, refer to Figures 4 - 5 to describe the structure of the slurry demagnetization device according to the embodiments of the present invention.

[0045] The present invention also discloses a slurry demagnetization device. The slurry demagnetization device includes a cavity 200 and the foregoing slurry demagnetization device 100. The cavity 200 has a plurality of mounting holes, and each mounting hole is provided with a slurry demagnetization device 100. It can be understood that during the actual working process, after the slurry demagnetization device 100 is inserted into the mounting hole, the slurry can pass through the cavity 200 (the cavity 200 has a liquid inlet and a liquid outlet, which are not shown in the figure). After the slurry demagnetization device 100 is started, since the demagnetizing rod body 110 of the slurry demagnetization device 100 is hollow and the surface of the demagnetizing rod body 110 has a hollow structure 111, when the demagnetizing rod body 110 rotates in the slurry, it can be in full contact with the slurry, improving the adsorption ability of the demagnetizing rod body 110 to metal particles in the slurry, thereby more thoroughly removing the metal particles in the slurry.

[0046] In one embodiment, as Figure 4 shown, the cavity 200 has a fixed flange 210 disposed around the mounting hole, and the mounting base 140 has a mounting flange 143 that docks with the fixed flange 210. It can be understood that using the docking of the fixed flange 210 and the mounting flange 143 to install the slurry demagnetization device 100 on the cavity 200 can help improve the reliability of the slurry demagnetization device 100 and the sealing performance of the connection position. It should be noted that the connection method between the fixed flange 210 and the mounting flange 143 can be through a connecting member such as a screw, or through welding or bonding. In addition, to improve the connection sealing performance between the two, a gasket can also be interposed between the fixed flange 210 and the mounting flange 143.

[0047] In some alternative embodiments, as Figure 4As shown, the cavity 200 has a fixed flange 210 disposed around the mounting hole; the mounting base 140 is threadedly connected to the fixed flange 210. It can be understood that during the actual working process, first insert the mounting base 140 of the slurry demagnetizing device 100 into the threaded hole on the fixed flange 210, and then rotate the slurry demagnetizing device 100. This installation method is very convenient and does not require the use of connectors, facilitating the installation of the slurry demagnetizing device 100 onto the cavity 200 or the removal of the slurry demagnetizing device 100 from the cavity 200.

[0048] In the description of this specification, the descriptions referring to the terms "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0049] Obviously, the above embodiments of the present invention are merely examples given to clearly illustrate the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A slurry demagnetization device, characterized in that: include: A demagnetizing rod body (110), wherein the demagnetizing rod body (110) is hollow and the surface of the demagnetizing rod body (110) has a hollow structure (111); A driving member (120), wherein the driving member (120) is connected to the demagnetizing rod body (110) and is used to drive the demagnetizing rod body (110) to rotate.

2. The slurry demagnetization device according to claim 1, characterized in that: The ratio of the area of ​​the hollow structure (111) to the surface area of ​​the demagnetizing rod body (110) is less than or equal to 0.

5.

3. The slurry demagnetization device according to claim 1, characterized in that: The hollow structure (111) comprises a plurality of through holes, and the plurality of through holes are arranged in a plurality of rows and columns.

4. The slurry demagnetization device according to claim 3, characterized in that: The diameter of each through hole is 0.1 mm-5 mm.

5. The slurry demagnetization device according to any one of claims 1 to 4, characterized in that: The driving member (120) has a power output end (121); The slurry demagnetization device further comprises a coupling (130), one end of which is connected to the demagnetization rod body (110), and the other end of which is connected to the power output end (121) of the driving member (120).

6. The slurry demagnetization device according to claim 5, characterized in that: The slurry demagnetization device also includes a mounting seat (140), the mounting seat (140) having a mounting cavity (141), and two ends of the mounting cavity (141) are respectively provided with a first avoidance hole and a second avoidance hole, the coupling (130) is arranged in the mounting cavity (141), the driving member (120) is supported on the mounting seat (140), and the power output end (121) of the driving member (120) is connected to the coupling (130) through the first avoidance hole, and the demagnetization rod body (110) is connected to the coupling (130) through the second avoidance hole.

7. The slurry demagnetization device according to claim 6, characterized in that: The mounting seat (140) has a supporting convex ring (142) arranged around the first avoidance hole, and the supporting convex ring (142) is used to support the driving member (120) and is connected to the driving member (120) via a connecting member.

8. The slurry demagnetization device according to claim 5, characterized in that: The demagnetizing rod body (110) is provided with a butt end (112), and an elastic member is provided inside the butt end (112), and the elastic member is used to press the demagnetizing rod body (110) against the coupling (130).

9. A slurry demagnetization device, characterized in that: It comprises a cavity (200) and a slurry demagnetization device as described in any one of claims 1 to 8, wherein the cavity (200) has a plurality of mounting holes, and each of the mounting holes is equipped with at least one of the slurry demagnetization devices.

10. The slurry demagnetization equipment according to claim 9, characterized in that: The cavity (200) has a fixing flange (210) arranged around the mounting hole; The slurry demagnetizing device is threadedly connected to the fixed flange (210); or: the slurry demagnetizing device has a mounting flange (143) that is butt-jointed with the fixed flange (210).

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