Demagnetizing device for positive electrode material of lithium battery

Abstract

The utility model relates to the technical field of lithium battery manufacturing, in particular to a demagnetizing device for a lithium battery positive electrode material. According to the technical scheme, the device comprises supporting legs, a bottom plate, a vibration bin and a limiting frame, two step grooves are formed in the lower end of the interior of the vibration bin at equal intervals, limiting grooves are formed in the positions, located at the step grooves, of the two sides of the interior of the vibration bin, and second contact plates are fixed to the middles of the inner sides of the limiting grooves through second springs; a demagnetizing net is fixed in the limiting frame, first contact plates are fixed to the two ends of the limiting frame, the limiting frame is slidably installed in the limiting groove through the first contact plates, a first spring is fixed to one end of the lower side of the vibration bin, and a vibration motor is fixed to the end, away from the first spring, of the lower side of the vibration bin; the vibration bin is fixed to the middle of the upper end face of the bottom plate through a first spring and a vibration motor. The lithium battery material demagnetizing device has the advantage of being beneficial to demagnetizing magnetic impurities in lithium battery materials.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery manufacturing, in particular to a demagnetization device for lithium battery positive electrode materials. Background Art

[0002] Lithium batteries are widely used in portable electronic devices such as mobile phones and laptops due to their high energy density and relatively low self-discharge rate. Lithium-ion batteries have become the mainstream of the market due to their excellent performance. In addition to traditional consumer electronics, lithium battery technology has also shown great potential in fields such as new energy vehicles and energy storage systems.

[0003] During the manufacturing process of lithium batteries, the positive electrode materials need to be filtered to remove impurities and ensure the purity of the materials. At the same time, the magnetic impurities contained in the materials can easily affect the normal use of lithium batteries. When processing lithium batteries, special magnetic impurity removal devices are required to filter and remove them to improve the efficiency of lithium batteries. Therefore, there is a need for a device that is conducive to demagnetizing magnetic impurities in lithium battery materials. Utility Model Content

[0004] The purpose of the utility model is to provide a demagnetization device for lithium battery positive electrode materials, which has the advantage of being conducive to demagnetizing magnetic impurities in lithium battery materials, and solves the problem that magnetic impurities contained in the materials are likely to affect the normal use of lithium batteries. When processing lithium batteries, a special magnetic impurity removal device is needed to filter and remove them.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a demagnetization device for positive electrode materials of lithium batteries, comprising supporting legs, a bottom plate, a vibration bin and a limit frame, wherein two step grooves are equidistantly provided at the inner lower end of the vibration bin, and both sides of the inner part of the vibration bin are located at the step grooves, and limit grooves are provided, a second contact plate is fixed to the middle of the inner side of the limit groove through a second spring, a demagnetization net is fixed to the inside of the limit frame, a first contact plate is fixed to both ends of the limit frame, the limit frame is slidably installed in the limit groove through the first contact plate, a first spring is fixed to one end of the lower side of the vibration bin, a vibration motor is fixed to one end of the lower side of the vibration bin facing away from the first spring, and the vibration bin is fixed to the middle of the upper end surface of the bottom plate through the first spring and the vibration motor.

[0006] Preferably, there are four supporting legs in total, and the four supporting legs are respectively fixed at the four corners of the lower end surface of the base plate.

[0007] Preferably, the vibration bin is connected and fixed with a storage hopper at one end of the vibration motor, and the inner lower end of the storage hopper is flush with the inner lower end of the vibration bin.

[0008] Preferably, the outer height of the limit frame is smaller than the inner depth of the vibration chamber.

[0009] Preferably, the first contact plate and the second contact plate are in contact with each other, the first contact plate and the second contact plate are electrically connected, and the demagnetization net is electrically connected to the first contact plate via a wire.

[0010] Preferably, the inner and outer widths of the vibration bin and the storage hopper are equal, and the outer widths of the vibration bin and the storage hopper are smaller than the width of the bottom plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model is conducive to achieving the effect of vibrating the vibration bin by arranging the first spring and the vibration motor. The vibration bin is placed on the bottom plate through the first spring and the vibration motor. When in use, the vibration motor is connected to the power supply. Under the action of the first spring and the vibration motor, the vibration bin is driven to vibrate, and the powdered positive electrode material of the battery can enter the vibration bin through the storage hopper, so that the powdered positive electrode material of the battery can be vibrated downward.

[0013] 2. The utility model provides a limit frame and a magnetic removal net, which is beneficial to filtering the magnetic impurities in the positive electrode material of the battery. The magnetic removal net is placed inside the limit groove through the limit frame, and the first contact plate and the magnetic removal net are connected to a power source through the second contact plate, so that magnetism is generated on the magnetic removal net. While the positive electrode material of the battery is discharged outwardly through the vibration of the vibration bin, the magnetic impurities in the positive electrode material of the battery can be adsorbed by the two magnetic removal nets, thereby filtering the magnetic impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the limit frame and magnetic removal net structure of the utility model.

[0017] In the figure: 1. Support leg; 2. Bottom plate; 3. First spring; 4. Vibration bin; 5. Limiting groove; 6. Limiting frame; 7. Step groove; 8. Storage hopper; 9. Vibration motor; 10. Second spring; 11. First contact plate; 12. Second contact plate; 13. Demagnetization net. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Embodiment 1

[0022] See also Figures 1 to 3 The utility model provides an embodiment: a demagnetization device for positive electrode materials of a lithium battery, comprising a supporting leg 1, a bottom plate 2, a vibration bin 4 and a limit frame 6, wherein two step grooves 7 are equidistantly provided at the inner lower end of the vibration bin 4, and both sides of the inner side of the vibration bin 4 are located at the step grooves 7, and limit grooves 5 are provided, and a second contact plate 12 is fixed to the middle of the inner side of the limit groove 5 through a second spring 10, a demagnetization net 13 is fixed to the inside of the limit frame 6, and a first contact plate 11 is fixed to both ends of the limit frame 6, and the limit frame 6 is slidably installed in the limit groove 5 through the first contact plate 11, a first spring 3 is fixed to one end of the lower side of the vibration bin 4, and a vibration motor 9 is fixed to the end of the lower side of the vibration bin 4 away from the first spring 3, and the vibration bin 4 is fixed to the middle of the upper end surface of the bottom plate 2 through the first spring 3 and the vibration motor 9.

[0023] There are four supporting legs 1 in total, and the four supporting legs 1 are respectively fixed at the four corners of the lower end surface of the base plate 2 .

[0024] A storage hopper 8 is fixedly connected to one end of the vibration bin 4 located at the vibration motor 9 , and the inner lower end of the storage hopper 8 is flush with the inner lower end of the vibration bin 4 .

[0025] The inner and outer widths of the vibration bin 4 and the storage hopper 8 are equal, and the outer widths of the vibration bin 4 and the storage hopper 8 are smaller than the width of the bottom plate 2 .

[0026] The vibration bin 4 is placed on the bottom plate 2 through the first spring 3 and the vibration motor 9. When in use, the vibration motor 9 is powered on. Under the action of the first spring 3 and the vibration motor 9, the vibration bin 4 is driven to vibrate, and the powdered battery positive electrode material can enter the vibration bin 4 through the storage hopper 8, so that the powdered battery positive electrode material can be vibrated downward.

[0027] Embodiment 2

[0028] See also Figures 1 to 3 , the utility model provides an embodiment: a demagnetization device for positive electrode materials of lithium batteries. Compared with the first embodiment, the present embodiment also includes: a supporting leg 1, a bottom plate 2, a vibration bin 4 and a limit frame 6. The lower end of the inner part of the vibration bin 4 is equidistantly provided with two step grooves 7. The inner two sides of the vibration bin 4 are located at the step grooves 7, and both have limit grooves 5. The middle of the inner side of the limit groove 5 is fixed with a second contact plate 12 through a second spring 10. The inner part of the limit frame 6 is fixed with a demagnetization net 13. The two ends of the limit frame 6 are fixed with a first contact plate 11. The limit frame 6 is slidably installed in the limit groove 5 through the first contact plate 11. A first spring 3 is fixed to one end of the lower side of the vibration bin 4. A vibration motor 9 is fixed to the end of the lower side of the vibration bin 4 away from the first spring 3. The vibration bin 4 is fixed to the middle of the upper end surface of the bottom plate 2 through the first spring 3 and the vibration motor 9.

[0029] The outer height of the limiting frame 6 is smaller than the inner depth of the vibration chamber 4 .

[0030] The first contact plate 11 and the second contact plate 12 are in contact with each other, and the first contact plate 11 and the second contact plate 12 are electrically connected. The demagnetization net 13 is electrically connected to the first contact plate 11 through a wire.

[0031] The magnetic removal net 13 is placed inside the limiting groove 5 through the limiting frame 6, and the first contact plate 11 and the magnetic removal net 13 are powered on through the second contact plate 12, so that magnetism is generated on the magnetic removal net 13. While the positive electrode material of the battery is discharged outward through the vibration of the vibration bin 4, the magnetic impurities in the positive electrode material of the battery can be adsorbed by the two magnetic removal nets 13, thereby filtering the magnetic impurities.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A demagnetization device for lithium battery positive electrode materials, comprising a support leg (1), a bottom plate (2), a vibration chamber (4) and a limit frame (6), characterized in that: The lower end of the vibration bin (4) is provided with two step grooves (7) at equal distances from each other. The two sides of the vibration bin (4) are provided with limit grooves (5) at the step grooves (7). A second contact plate (12) is fixed to the middle of the inner side of the limit groove (5) via a second spring (10). A magnetic removal net (13) is fixed to the inside of the limit frame (6). The two ends of the limit frame (6) are fixed with first contact plates (11). The limit frame (6) is slidably mounted in the limit groove (5) via the first contact plate (11). A first spring (3) is fixed to one end of the lower side of the vibration bin (4). A vibration motor (9) is fixed to one end of the lower side of the vibration bin (4) away from the first spring (3). The vibration bin (4) is fixed to the middle of the upper end surface of the bottom plate (2) via the first spring (3) and the vibration motor (9).

2. A demagnetization device for lithium battery positive electrode material according to claim 1, characterized in that: There are four supporting legs (1) in total, and the four supporting legs (1) are respectively fixed at the four corners of the lower end surface of the bottom plate (2).

3. A demagnetization device for lithium battery positive electrode material according to claim 1, characterized in that: The vibration bin (4) is connected and fixed with a storage hopper (8) at one end of the vibration motor (9), and the inner lower end of the storage hopper (8) is flush with the inner lower end of the vibration bin (4).

4. A demagnetization device for lithium battery positive electrode material according to claim 1, characterized in that: The outer height of the limiting frame (6) is smaller than the inner depth of the vibration bin (4).

5. The demagnetization device for lithium battery positive electrode material according to claim 1, characterized in that: The first contact plate (11) and the second contact plate (12) are in contact with each other, the first contact plate (11) and the second contact plate (12) are electrically connected, and the demagnetization net (13) is electrically connected to the first contact plate (11) via a wire.

6. A demagnetization device for lithium battery positive electrode material according to claim 1, characterized in that: The inner and outer widths of the vibration bin (4) and the storage hopper (8) are equal, and the outer widths of the vibration bin (4) and the storage hopper (8) are smaller than the width of the bottom plate (2).

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