A dust removal device

Abstract

The utility model discloses a dust collector, including being located in the ultrasonic dust removal head and ion wind stick of pole piece both sides, the ultrasonic dust removal head has the negative pressure adsorption cavity and ultrasonic wave generating cavity of not intercommunication, wherein, the negative pressure adsorption cavity is equipped with the negative pressure interface for adsorbing dust, and the ultrasonic wave generating cavity is connected with the positive pressure interface for sending ion wind into the ultrasonic wave generating cavity. The utility model discloses the joint application of ion wind stick and ultrasonic dust removal head, compared with the separate use ultrasonic dust removal, the ion wind that ion wind stick blows is cleaner, and secondary pollution is not introduced. And the ion wind that ion wind stick generates, can neutralize the static electricity on the surface of object in time, effectively removes the dust particle of adsorption due to static electricity, makes the overall cleaning of pole piece more comprehensive.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, and in particular to a dust removal device. Background Technology

[0002] The lithium-ion battery winding process is a crucial step in lithium-ion battery manufacturing. It involves winding the positive electrode, negative electrode, and separator at a set speed and tension to form a wound bare cell structure. During the production of the positive and negative electrodes, dust particles inevitably adhere to the electrodes due to electrostatic attraction. Furthermore, the shaking of the electrodes during winding can introduce new dust particles. If this dust is not effectively removed, it will enter the battery during winding, increasing internal resistance, affecting cycle life, and potentially creating tiny conductive channels between the positive and negative electrodes, leading to self-discharge. Severe dust buildup can even puncture the separator, causing an internal short circuit and posing a safety risk. Utility Model Content

[0003] The purpose of this invention is to provide a dust removal device that, through the combined use of an ultrasonic dust removal head and an ion bar, can more comprehensively remove dust from the surface of the electrode, including tiny particles that are difficult to remove due to electrostatic adsorption, thereby further improving cleaning efficiency and quality.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model discloses a dust removal device, including an ultrasonic dust removal head and an ion wind bar disposed on both sides of an electrode; the ultrasonic dust removal head has a negative pressure adsorption chamber and an ultrasonic wave generating chamber that are not interconnected, wherein the negative pressure adsorption chamber is provided with a negative pressure interface for adsorbing dust, and the ultrasonic wave generating chamber is connected to a positive pressure interface for sending ion wind into the ultrasonic wave generating chamber.

[0006] A further embodiment: the ion air bar and the ultrasonic dust removal head are slidably connected by an L-shaped plate; the vertical section of the L-shaped plate is fixedly connected to the side of the ion air bar, and the horizontal section is slidably connected to the ultrasonic dust removal head, with the sliding direction perpendicular to the plane where the electrode is located.

[0007] A further solution: The horizontal section is provided with a parallel slide rail, and the top surface of the ultrasonic dust removal head is fixed with a protrusion that is accommodated in the slide rail.

[0008] A further solution: the air outlet direction of the ion bar is perpendicular to the plane where the electrode is located.

[0009] A further solution: A baffle is provided between the ultrasonic dust removal head and the electrode.

[0010] A further solution: the baffle is made of Teflon.

[0011] A further embodiment includes a guide roller for transporting the electrode sheet; the guide roller includes an upper roller disposed above the ultrasonic dust removal head and a lower roller disposed below the ultrasonic dust removal head.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention uses an ion air bar in combination with an ultrasonic dust removal head. Compared with ultrasonic dust removal alone, the ion air blown by the ion air bar is cleaner and will not introduce secondary pollution. In addition, the ion air generated by the ion air bar can neutralize the static electricity on the surface of the object in time, effectively remove dust particles adsorbed by static electricity, and make the overall cleaning of the electrode more comprehensive.

[0014] The ionizer bar uses an L-shaped plate to adjust the distance between itself and the electrode, adapting to different working conditions and offering strong versatility. A Teflon baffle is installed between the dust collector head and the electrode to prevent the electrode from rubbing against the dust collector head due to vibration, thus improving safety. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a side sectional view of the present invention;

[0017] In the diagram: 1-Ultrasonic dust removal head, 11-Negative pressure interface, 12-Positive pressure interface, 2-Ionizing air bar, 21-Air inlet, 22-Air outlet, 3-L-shaped plate, 31-Vertical section, 32-Horizontal section, 321-Parallel slide rail, 4-Electrode plate, 5-Baffle, 6-Guide roller, 61-Upper roller, 62-Lower roller, 7-Support. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] Please see Figure 1-2 This embodiment discloses a dust removal device, including an ultrasonic dust removal head 1 and an ionizing air bar 2 disposed on both sides of an electrode 4. The ultrasonic dust removal head 1 has a negative pressure adsorption chamber and an ultrasonic generating chamber that are not interconnected. The negative pressure adsorption chamber is provided with a negative pressure interface 11, and the ultrasonic generating chamber is connected to a positive pressure interface 12 inside the ultrasonic generating chamber. The air inlet 21 of the ionizing air bar 2 is connected to a compressed air source to provide a stable airflow for the ionizing air. After the ionizing air bar 2 is ionized, the ionizing air carrying positive and negative charges is blown out from the air outlet 22 and swept onto the electrode 4 to eliminate the static electricity on the electrode 4 and remove the electrostatic adsorption of dust on the surface of the electrode 4. The positive pressure interface 11 is connected to a positive pressure pipe to deliver the ionizing air to the ultrasonic generating chamber. Under the action of ultrasound, a high-frequency vibrating ultrasonic airflow is generated. This ultrasonic airflow can carry up fine dust particles, causing the dust to be suspended and separated from the surface of the electrode, creating conditions for the subsequent dust removal. The negative pressure interface 11 generates negative pressure, which draws loose dust from the electrode surface into the negative pressure adsorption chamber. This chamber is connected to a dust collection pipe for centralized dust collection and treatment. The negative pressure adsorption chamber and the ultrasonic generation chamber are independent and do not affect each other, ensuring that the adsorbed dust will not interfere with the generation and transmission of ultrasonic waves, while also avoiding secondary dust pollution.

[0021] Furthermore, the ionizing air bar 2 and the ultrasonic dust removal head 1 are slidably connected via an L-shaped plate 3; the vertical section 31 of the L-shaped plate 3 is fixedly connected to the side of the ionizing air bar 2, and the horizontal section 32 is slidably connected to the ultrasonic dust removal head 1, with the sliding direction perpendicular to the plane where the electrode 4 is located. Depending on the actual working conditions, the distance between the ionizing air bar 2 and the electrode 4 can be adjusted by sliding. An appropriate distance allows the energy carried by the ionizing air to act evenly on the surface of the electrode, more effectively loosening and carrying away dust.

[0022] Furthermore, the horizontal section 32 is provided with a parallel slide 321, and the top surface of the ultrasonic dust removal head 1 is fixed with a protrusion that is accommodated in the slide 321.

[0023] Furthermore, the airflow direction of the ionizing air bar 2 is perpendicular to the plane where the electrode 4 is located. The ionizing air acts perpendicularly on the surface of the electrode, allowing it to cover the electrode more directly and evenly. The vertically blown ionizing air can act directly on the dust on the surface of the electrode 4 with greater impact force, effectively blowing it away from the electrode 4.

[0024] Furthermore, a baffle 5 is provided between the ultrasonic dust removal head 1 and the electrode 4 (i.e., the air outlet surface of the dust removal head). The baffle 5 is made of Teflon. Teflon has an extremely low coefficient of friction, which reduces the risk of scratching the electrode 4. In addition, Teflon has outstanding non-stick properties, making it difficult for dust and oil to adhere to its surface. During the dust removal process, the dust carried by the ultrasonic airflow will not adhere to the baffle 5, reducing the possibility of secondary pollution caused by dust accumulation on the surface of the baffle 5.

[0025] Furthermore, it also includes guide rollers 6 for transporting the electrode sheet 4; the guide rollers 6 include an upper roller 61 located above the ultrasonic dust removal head 1 and a lower roller 62 located below the ultrasonic dust removal head 1. The upper roller 61 and the lower roller 62 are respectively located on both sides of the electrode sheet 4 to ensure the flatness of the electrode sheet 4 during operation.

[0026] The working principle of this utility model is as follows: the clean gas generated by the ion wind bar 2 is blown toward the electrode 4, which can eliminate the static electricity on the surface of the electrode. After the gas is radiated by ultrasonic waves, it generates a high-frequency vibrating ultrasonic airflow. The airflow carries up tiny dust particles and suspends them. After the dust particles are separated, they are instantly sucked away by the vacuum adsorption chamber of the ultrasonic dust removal head, thereby achieving the effect of cleaning the dust particles on the surface of the electrode.

[0027] 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.

[0028] 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 dust removal device, characterized in that, It includes an ultrasonic dust removal head (1) and an ion wind bar (2) located on both sides of the electrode (4); the ultrasonic dust removal head (1) has a negative pressure adsorption chamber and an ultrasonic generating chamber that are not connected to each other, wherein the negative pressure adsorption chamber is provided with a negative pressure interface (11) for adsorbing dust, and the ultrasonic generating chamber is connected with a positive pressure interface (12) for sending ion wind into the ultrasonic generating chamber.

2. The dust removal device according to claim 1, characterized in that, The ion air bar (2) and the ultrasonic dust removal head (1) are slidably connected by an L-shaped plate (3); the vertical section (31) of the L-shaped plate (3) is fixedly connected to the side of the ion air bar (2), and the horizontal section (32) is slidably connected to the ultrasonic dust removal head (1), with the sliding direction perpendicular to the plane where the electrode plate (4) is located.

3. The dust removal device according to claim 2, characterized in that, The horizontal section (32) is provided with a parallel slide (321), and the top surface of the ultrasonic dust removal head (1) is fixed with a protrusion that is accommodated in the slide (321).

4. The dust removal device according to claim 1, characterized in that, The air outlet direction of the ion wind bar (2) is perpendicular to the plane where the electrode (4) is located.

5. The dust removal device according to claim 1, characterized in that, A baffle (5) is provided between the ultrasonic dust removal head (1) and the electrode (4).

6. The dust removal device according to claim 5, characterized in that, The baffle (5) is made of Teflon.

7. The dust removal device according to claim 1, characterized in that, It also includes a guide roller (6) for transporting the electrode (4); the guide roller (6) includes an upper roller (61) disposed above the ultrasonic dust removal head (1) and a lower roller (62) disposed below the ultrasonic dust removal head (1).

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