Pole piece deironing device

Abstract

The utility model provides a pole piece deironing device. The pole piece deironing device comprises two fixed plates and two magnetic parts, the two magnetic parts are oppositely arranged between the two fixed plates and are rotatably connected with the two fixed plates respectively, and a pole piece is arranged between the two magnetic parts in a penetrating manner; the included angle between the extending direction of the fixing plate and the width direction of the pole piece is adjustably arranged, so that the pole piece is relatively close to the magnetic component, and the plane where one side face of the magnetic component is located is parallel to the surface of the pole piece by rotating the magnetic component. And the problem that the magnetic force utilization rate of an iron removal device in the prior art is low is solved.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery production, and in particular to a pole piece iron removal device. Background Art

[0002] Trace amounts of magnetic metal impurities (such as Fe and Cr) in lithium batteries undergo chemical reactions and dissolve in the electrolyte. When the battery is charging, the metal ions will pass through the diaphragm to the surface of the negative electrode under the action of an external electric field. When the battery is discharging, the metal ions at the negative electrode gain electrons and precipitate as metal elements on the surface of the diaphragm to form dendrites. The dendrites will continue to grow and pierce the diaphragm, forming a micro-short circuit and causing low voltage in the battery cell. Therefore, demagnetization is an indispensable step in the preparation of lithium batteries. Demagnetization of the pole piece surface is generally carried out using a demagnetization rod or demagnetization block structure device.

[0003] However, when using a demagnetization rod structure for demagnetization, since the demagnetization rod is cylindrical and the closest distance from the circle to the straight line is a point (tangent point), the part of the demagnetization rod surface with the best demagnetization effect is a line parallel to the pole piece surface, and thus the magnetic force utilization rate of the demagnetization rod is low, and the frequency of cleaning is high; when using a demagnetization block structure for demagnetization, the structure is generally a fixed device (cannot rotate), and the symmetrical installation causes the magnetic forces in the middle area to cancel each other out, resulting in a very poor demagnetization effect. It needs to be disassembled for cleaning, which is troublesome to clean, and accidents are prone to occur after the strong magnetic device is disassembled, which is extremely unsafe. Utility Model Content

[0004] The main purpose of the present application is to provide a pole piece iron removal device to solve the problem of low magnetic force utilization rate of the iron removal device in the related art.

[0005] In order to achieve the above-mentioned purpose, the present application provides a pole piece iron removal device, comprising: two fixed plates; two magnetic components, which are relatively arranged between the two fixed plates and are respectively rotatably connected to the two fixed plates, and a pole piece is passed through the two magnetic components; wherein the angle between the fixed plate along its extension direction and the pole piece along its width direction can be adjusted so that the pole piece is arranged relatively close to the magnetic component, and the surface of one side of the magnetic component is parallel to the surface of the pole piece by rotating the magnetic component.

[0006] Furthermore, the magnetic component is a rectangular structure, and the two magnetic components are vertically connected to the fixing plate along their length directions.

[0007] Furthermore, two mounting holes are respectively provided on the fixing plate, and a fixing part and a rotating part are provided at both ends of the magnetic component along its extension direction. A fixing bolt is passed through the mounting hole and connected to the fixed part, and the rotating part is rotatably connected to the fixing plate, so that the magnetic component is rotatably set with the line between the mounting holes on the two fixing plates as the axis.

[0008] Furthermore, two arc-shaped grooves are respectively provided on the fixing plate, and sliding bolts are movably passed through the arc-shaped grooves and connected to the rotating part, so that the rotating part is movably arranged along the extension direction of the arc-shaped grooves.

[0009] Furthermore, the preset angle between the fixing plate along its extension direction and the pole piece along its width direction is The width of the magnetic component is b, and the vertical distance between the surface of one side of the magnetic component and the surface of the pole piece is h; wherein the preset angle The width b and vertical distance h of the magnetic component meet the following requirements:

[0010] Furthermore, a handle is provided on the fixing plate for controlling the rotation of the fixing plate to adjust the angle between the fixing plate along its extension direction and the pole piece along its width direction.

[0011] Furthermore, the two arc-shaped grooves on the fixing plate are symmetrically arranged; and / or the two mounting holes are symmetrically arranged on both ends of the fixing plate.

[0012] Furthermore, the mounting hole is the center of the circle where the arc-shaped groove is located.

[0013] Furthermore, an iron removal component is slidably connected to the magnetic component along its length direction. The iron removal component is sleeved on the magnetic component to remove iron filings on the surface of the magnetic component when moving along the extension direction of the magnetic component.

[0014] Furthermore, the structural shape of the iron removal component is adapted to the outer surface shape of the magnetic component, and a handle is provided on the outer peripheral wall of the iron removal component for operating the iron removal component to slide on the magnetic component.

[0015] Applying the technical solution of the present application, a pole piece iron removal device includes two fixed plates and two magnetic components; the two magnetic components are relatively arranged between the two fixed plates and are rotatably connected to the two fixed plates respectively, and a pole piece is inserted between the two magnetic components; wherein, the angle between the fixed plate along its extension direction and the pole piece along its width direction can be adjusted so that the pole piece is relatively close to the magnetic component, and the magnetic component is rotated so that the plane where one side of the magnetic component is located is parallel to the surface of the pole piece. In the above arrangement, the pole piece is inserted between the two magnetic components and is arranged at a preset angle between the pole piece along its width direction and the fixed plate along its extension direction. In this way, by adjusting the fixed plate, the preset angle is reduced or increased, thereby making the pole piece and the magnetic component relatively close to each other, and then by controlling the magnetic component to rotate until one side thereof is parallel to the surface of the pole piece, the surface of the pole piece is ironed. At this time, the distance between the magnetic component and the pole piece is the shortest, which fully utilizes the magnetic force of the magnetic component, thereby solving the problem of low magnetic force utilization rate of the iron removal device in the related art. At the same time, the two magnetic components are separately rotatably arranged, and any magnetic component can be controlled to rotate for cleaning without having to disassemble it separately, thereby reducing unnecessary safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 The figure shows the overall structure of the pole piece iron removal device according to the embodiment of the present invention;

[0018] Figure 2 A schematic structural diagram of a fixing plate provided according to an embodiment of the pole piece iron removal device of the present utility model is shown.

[0019] The above drawings include the following reference numerals:

[0020] 10. Fixing plate; 11. Mounting hole; 12. Fixing bolt; 13. Arc groove; 14. Sliding bolt; 15. Handle; 20. Magnetic component. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment specifications known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be considered as part of the authorized specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary, rather than limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0024] In order to solve the problem of low magnetic force utilization rate of the iron removal device in the related art, the utility model provides a pole piece iron removal device.

[0025] Please refer to Figure 1 and Figure 2 As shown, applying the technical solution of the utility model, a pole piece iron removal device is provided, including two fixed plates 10 and two magnetic components 20; the two magnetic components 20 are relatively arranged between the two fixed plates 10 and are respectively rotatably connected to the two fixed plates 10, and a pole piece is passed through the two magnetic components 20; wherein, the angle between the fixed plate 10 along its extension direction and the pole piece along its width direction can be adjusted so that the pole piece is arranged relatively close to the magnetic component 20, and the magnetic component 20 is rotated to make the plane where one side of the magnetic component 20 is located parallel to the surface of the pole piece.

[0026] By applying the technical solution of this embodiment, when removing iron from the pole piece, the pole piece is inserted between the two magnetic components 20 and is arranged at a preset angle between the pole piece along its width direction and the fixed plate 10 along its extension direction. In this way, by adjusting the fixed plate 10 to reduce or increase the preset angle, the pole piece and the magnetic component 20 are arranged relatively close to each other, and then the magnetic component 20 is controlled to rotate until one side thereof is parallel to the surface of the pole piece to remove iron from the surface of the pole piece. At this time, the distance between the magnetic component 20 and the pole piece is the shortest, and the magnetic force of the magnetic component 20 is fully utilized, thereby solving the problem of low magnetic force utilization rate of the iron removal device in the related art. At the same time, the two magnetic components 20 are separately rotatable, and any magnetic component 20 can be controlled to rotate to clean it without having to disassemble it separately, thereby reducing unnecessary safety accidents.

[0027] In this embodiment, the magnetic components 20 are rectangular in structure, and the two magnetic components 20 are respectively connected perpendicularly to the fixed plate 10 along their length. In the above arrangement, the magnetic components 20 are rectangular strips. Thus, after adjusting the fixed plate 10 to bring the pole piece and the magnetic components 20 relatively close, the magnetic components 20 can be rotated so that the side surfaces of the magnetic components 20 are parallel to the pole piece, so that the magnetic components 20 and the pole piece are at the closest vertical distance, thereby effectively utilizing the magnetic force of the magnetic components 20 and maximizing the magnetic force utilization rate.

[0028] like Figure 1 and Figure 2 As shown, two mounting holes 11 are respectively provided on the fixed plate 10, and a fixed portion and a rotating portion are provided at both ends of the magnetic component 20 along its extension direction. A fixing bolt 12 is passed through the mounting hole 11 and connected to the fixed portion, and the rotating portion is rotatably connected to the fixed plate 10, so that the magnetic component 20 is rotatably arranged with the line connecting the mounting holes 11 on the two fixed plates 10 as the axis. In the above arrangement, the fixed portion and the rotating portion are respectively and spaced apart on one end face of the square block-shaped magnetic component 20. In this way, after the fixed portion of the magnetic component 20 is relatively fixed and hinged to the fixed plate 10, the rotating portion of the magnetic component 20 is controlled to rotate, and then the magnetic component 20 is rotated to a position where its side surface is parallel to the pole piece to remove iron from the pole piece.

[0029] Specifically, the fixed plate 10 is provided with two arcuate slots 13, each of which is movably provided with a sliding bolt 14 connected to the rotating portion, so that the rotating portion is movably arranged along the extending direction of the arcuate slot 13. Thus, by controlling the sliding bolt 14 to slide within the arcuate slot 13 along the extending direction of the arcuate slot 13, the magnetic component 20 is driven to rotate.

[0030] In order to avoid magnetic interference between the two symmetrically arranged magnetic components 20, the preset angle between the fixing plate 10 along its extension direction and the pole piece along its width direction is The width of the magnetic component 20 is b, and the vertical distance between the surface of one side of the magnetic component 20 and the surface of the pole piece is h; wherein the preset angle The width b and vertical distance h of the magnetic component 20 satisfy:

[0031] In this embodiment, a handle 15 is provided on the fixing plate 10 for controlling the rotation of the fixing plate 10 to adjust the angle between the fixing plate 10 along its extension direction and the pole piece along its width direction. Thus, by rotating the handle 15 clockwise or counterclockwise, the fixing plate 10 can be driven to rotate, thereby reducing or increasing the angle between the fixing plate 10 along its extension direction and the pole piece along its width direction, thereby bringing the pole piece and the magnetic component 20 closer together, facilitating the subsequent control of rotating the magnetic component 20 to a position parallel to the pole piece to achieve the closest vertical distance.

[0032] In this embodiment, the two arc-shaped grooves 13 on the fixing plate 10 are symmetrically arranged.

[0033] In this embodiment, two mounting holes 11 are symmetrically arranged on both ends of the fixing plate 10 .

[0034] Specifically, the mounting hole 11 is the center of the circle where the arc groove 13 is located. In this way, when the sliding bolt 14 is controlled to slide in the arc groove 13 along the extending direction of the arc groove 13, the magnetic component 20 rotates around the mounting hole 11.

[0035] In this embodiment, an iron removal component is slidably connected to the magnetic component 20 along its length. The iron removal component is sleeved on the magnetic component 20 to remove iron filings on the surface of the magnetic component 20 when it moves along the extension direction of the magnetic component. With the above arrangement, after the battery pole piece passes through the channel between the two magnetic components 20, the magnetic component 20 adsorbs the iron filings on the pole piece onto its own surface. As the iron filings on the surface of the magnetic component 20 increase, they will affect the magnetism of the magnetic component 20 itself and also cause scratches on the surface of the pole piece. In this way, the non-magnetic iron removal component is sleeved on the magnetic component 20, and the iron removal component is controlled to slide on the magnetic component 20 to remove the iron filings adsorbed on the surface of the magnetic component 20.

[0036] Specifically, the iron removal component is configured to match the outer surface of the magnetic component 20. A handle is provided on the outer periphery of the component to allow the component to slide on the magnetic component 20. In this configuration, the iron removal component is a square ring that fits the magnetic component 20. This facilitates the sliding of the iron removal component on the magnetic component 20 by controlling the handle to remove iron filings adsorbed on the surface of the magnetic component 20.

[0037] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0038] The pole piece iron removal device includes two fixed plates 10 and two magnetic components 20; the two magnetic components 20 are relatively arranged between the two fixed plates 10 and are respectively rotatably connected to the two fixed plates 10, and a pole piece is passed through the two magnetic components 20; wherein, the angle between the fixed plate 10 along its extension direction and the pole piece along its width direction can be adjusted so that the pole piece is arranged relatively close to the magnetic component 20, and the magnetic component 20 is rotated to make the plane where one side of the magnetic component 20 is located parallel to the surface of the pole piece. In the above arrangement, the pole piece is inserted between the two magnetic components 20 and is arranged at a preset angle between the pole piece along its width direction and the fixed plate 10 along its extension direction. In this way, by adjusting the fixed plate 10 to reduce or increase the preset angle, the pole piece and the magnetic component 20 are arranged relatively close to each other, and then the magnetic component 20 is controlled to rotate until one side thereof is parallel to the surface of the pole piece to remove iron from the surface of the pole piece. At this time, the distance between the magnetic component 20 and the pole piece is the shortest, and the magnetic force of the magnetic component 20 is fully utilized, thereby solving the problem of low magnetic force utilization rate of the iron removal device in the related art. At the same time, the two magnetic components 20 are separately rotatable, and any magnetic component 20 can be controlled to rotate to clean it without disassembling it separately, thereby reducing unnecessary safety accidents.

[0039] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0042] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A pole piece iron removal device, characterized in that: include: two fixing plates (10); Two magnetic components (20) are relatively arranged between the two fixed plates (10) and are rotatably connected to the two fixed plates (10), and a pole piece is passed through the two magnetic components (20); The angle between the fixing plate (10) along its extension direction and the pole piece along its width direction is adjustable so that the pole piece is relatively close to the magnetic component (20), and the plane on which one side of the magnetic component (20) is located is parallel to the surface of the pole piece by rotating the magnetic component (20).

2. The pole piece iron removal device according to claim 1, characterized in that: The magnetic component (20) is a rectangular structure, and the two magnetic components (20) are respectively connected to the fixing plate (10) vertically along their length directions.

3. The pole piece iron removal device according to claim 1, characterized in that: Two mounting holes (11) are respectively provided on the fixing plate (10), and the two ends of the magnetic component (20) along the extension direction thereof are provided with a fixing portion and a rotating portion, a fixing bolt (12) is passed through the mounting hole (11) and connected to the fixing portion, and the rotating portion is rotatably connected to the fixing plate (10), so that the magnetic component (20) is rotatably arranged with the line connecting the mounting holes (11) on the two fixing plates (10) as the axis.

4. The pole piece iron removal device according to claim 3, characterized in that: Two arc-shaped grooves (13) are respectively provided on the fixing plate (10), and a sliding bolt (14) is movably passed through the arc-shaped groove (13) and connected to the rotating part, so that the rotating part can be movably arranged along the extension direction of the arc-shaped groove (13).

5. The pole piece iron removal device according to claim 1, characterized in that: The preset angle between the fixing plate (10) along its extension direction and the pole piece along its width direction is The width of the magnetic component (20) is b, and the vertical distance between the surface where one side of the magnetic component (20) is located and the surface of the pole piece is h; wherein the preset angle The width b of the magnetic component (20) and the vertical distance h satisfy:

6. The pole piece iron removal device according to claim 1, characterized in that: The fixing plate (10) is provided with a handle (15) for controlling the rotation of the fixing plate (10) to adjust the angle between the fixing plate (10) along its extension direction and the pole piece along its width direction.

7. The pole piece iron removal device according to claim 4, characterized in that: The two arc-shaped grooves (13) on the fixing plate (10) are symmetrically arranged; and / or, The two mounting holes (11) are symmetrically arranged on both ends of the fixing plate (10).

8. The pole piece iron removal device according to claim 4, characterized in that: The mounting hole (11) is the center of the circle where the arc-shaped groove (13) is located.

9. The pole piece iron removal device according to any one of claims 1 to 8, characterized in that: The magnetic component (20) is slidably connected to an iron removal component along its length direction. The iron removal component is sleeved on the magnetic component (20) to remove iron filings on the surface of the magnetic component (20) when moving along the extension direction of the magnetic component (20).

10. The pole piece iron removal device according to claim 9, characterized in that: The structural shape of the iron removal component is adapted to the outer surface shape of the magnetic component (20), and a handle is provided on the outer peripheral wall of the iron removal component for operating the iron removal component to slide on the magnetic component (20).

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