US-12617006-B2 - Dedusting apparatus, battery manufacturing device, and dedusting method

US12617006B2US 12617006 B2US12617006 B2US 12617006B2US-12617006-B2

Abstract

Disclosed are a dedusting apparatus, a battery manufacturing device, and a dedusting method. The dedusting apparatus is used for removing dust on the surface of a material belt, and includes a dust suction mechanism and a magnetic mechanism, wherein the magnetic mechanism is arranged opposite to the dust suction mechanism at an interval to form a gap for the material belt to pass through, and the magnetic mechanism is used for generating an alternating magnetic field. By arranging the magnetic mechanism and the dust suction mechanism opposite to each other on both sides of the material belt in the thickness direction, when the material belt passes through the gap between the magnetic mechanism and the dust suction mechanism, metal dust passing through the gap along with the material belt is affected by the alternating magnetic field and induced to form an eddy current.

Inventors

Yitai GUO
Zhihua Wen
Yunru SHI
Yongli Zhang
Cong Zhang

Assignees

CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Dates

Publication Date: 20260505
Application Date: 20240514

Claims (10)

1 . A dedusting apparatus, for removing metal dust on a surface of a material belt, the material belt being an electrode plate material belt for a lithium-ion battery, the dedusting apparatus comprising: a dust suction mechanism; and a magnetic mechanism, arranged opposite to the dust suction mechanism at an interval to form a gap for the material belt to pass through, wherein the magnetic mechanism comprises: a magnetic roller configured to generate an alternating magnetic field when rotating and cause a metal dust on a surface of the material belt to generate an induced magnetic field opposite to the alternating magnetic field, so that the metal dust is subjected to a repulsive force and bounces off from the material belt for the dust suction mechanism to suck away; a driving assembly comprising a motor configured to drive the magnetic roller to rotate, wherein the motor comprises an output shaft connected to one end of the magnetic roller; and a mounting seat, wherein both of two ends of the magnetic roller are rotatably connected to the mounting seat, and the driving assembly is fixedly connected to the mounting seat, wherein the mounting seat comprises a first end wall, a second end wall, and a bottom wall, wherein the first end wall and the second end wall are relatively arranged on both sides of the material belt along a width direction of the material belt, the bottom wall is connected to one end of the first end wall and one end of the second end wall, both of the two ends of the magnetic roller are rotatably connected to the first end wall and the second end wall respectively, the driving assembly is mounted on the first end wall, and one of the two ends of the magnetic roller connected to the first end wall passes through the first end wall to connect to the output shaft of the motor.
2 . The dedusting apparatus according to claim 1 , wherein the magnetic mechanism further comprises a bypass roller, the bypass roller is used for guiding the material belt to move, the bypass roller is of a hollow structure, the bypass roller rotatably sleeves the magnetic roller, and the gap is formed between an outer peripheral surface of the bypass roller and the dust suction mechanism.
3 . The dedusting apparatus according to claim 2 , wherein the magnetic mechanism further comprises a first bearing, and the magnetic roller is connected to the bypass roller through the first bearing.
4 . The dedusting apparatus according to claim 1 , wherein the dust suction mechanism comprises a dust suction hood and a negative pressure apparatus, the dust suction hood has a dust suction port arranged towards the magnetic mechanism, the negative pressure apparatus is connected to the dust suction hood, and the negative pressure apparatus is used for forming a negative pressure in the dust suction hood.
5 . The dedusting apparatus according to claim 4 , wherein the dust suction hood comprises a side wall, a top wall, and a connecting portion, the side wall surrounds the top wall, one end of the side wall is connected to the top wall, and the other end of the side wall forms the dust suction port, the connecting portion is arranged on the top wall, and the connecting portion is used for connecting the negative pressure apparatus.
6 . A battery manufacturing device, comprising: a conveying apparatus used for conveying an electrode plate material belt for a lithium-ion battery; a cutting apparatus used for cutting the electrode plate material belt; and a dedusting apparatus arranged downstream of the cutting apparatus and used for removing dust on a surface of the electrode plate material belt, wherein the dedusting apparatus comprises: a dust suction mechanism; and a magnetic mechanism, arranged opposite to the dust suction mechanism at an interval to form a gap for the material belt to pass through, wherein the magnetic mechanism comprises: a magnetic roller configured to generate an alternating magnetic field when rotating and cause a metal dust on a surface of the material belt to generate an induced magnetic field opposite to the alternating magnetic field, so that the metal dust is subjected to a repulsive force and bounces off from the material belt for the dust suction mechanism to suck away; a driving assembly comprising a motor configured to drive the magnetic roller to rotate, wherein the motor comprises an output shaft connected to one end of the magnetic roller; and a mounting seat, wherein both of two ends of the magnetic roller are rotatably connected to the mounting seat, and the driving assembly is fixedly connected to the mounting seat, wherein the mounting seat comprises a first end wall, a second end wall, and a bottom wall, wherein the first end wall and the second end wall are relatively arranged on both sides of the material belt along a width direction of the material belt, the bottom wall is connected to one end of the first end wall and one end of the second end wall, both of the two ends of the magnetic roller are rotatably connected to the first end wall and the second end wall respectively, the driving assembly is mounted on the first end wall, and one of the two ends of the magnetic roller connected to the first end wall passes through the first end wall to connect to the output shaft of the motor.
7 . The battery manufacturing device according to claim 6 , wherein the magnetic mechanism of the dedusting apparatus further comprises a bypass roller, the bypass roller is used for guiding the material belt to move, the bypass roller is of a hollow structure, the bypass roller rotatably sleeves the magnetic roller, and the gap is formed between an outer peripheral surface of the bypass roller and the dust suction mechanism.
8 . The battery manufacturing device according to claim 7 , wherein the magnetic mechanism of the dedusting apparatus further comprises a first bearing, and the magnetic roller is connected to the bypass roller through the first bearing.
9 . The battery manufacturing device according to claim 7 , wherein the dust suction mechanism of the dedusting apparatus comprises a dust suction hood and a negative pressure apparatus, the dust suction hood has a dust suction port arranged towards the magnetic mechanism, the negative pressure apparatus is connected to the dust suction hood, and the negative pressure apparatus is used for forming a negative pressure in the dust suction hood.
10 . The battery manufacturing device according to claim 9 , wherein the dust suction hood comprises a side wall, a top wall, and a connecting portion, the side wall surrounds the top wall, one end of the side wall is connected to the top wall, and the other end of the side wall forms the dust suction port, the connecting portion is arranged on the top wall, and the connecting portion is used for connecting the negative pressure apparatus.

Description

CROSS-REFERENCE TO RELATED APPLICATION The present application is a continuation of International Application No. PCT/CN2022/078451, filed Feb. 28, 2022 and entitled “DEDUSTING APPARATUS, BATTERY MANUFACTURING DEVICE, AND DEDUSTING METHOD”, which is incorporated herein by reference in its entirety. TECHNICAL FIELD The present application relates to the field of dedusting technologies, and specifically, to a dedusting apparatus, a battery manufacturing device, and a dedusting method. BACKGROUND In a machining process of a material belt, the surface of the material belt needs to be dedusted and cleaned. Common dedusting methods include blower dedusting, negative pressure dedusting, and adhesion dedusting. Dust is easy to adhere to the surface of the material belt, and when the surface of the material belt has a coating layer, the dust is easily embedded in the coating layer and is difficult to remove. Especially for metal dust, it is difficult to effectively remove it by conventional dedusting methods. SUMMARY OF THE INVENTION The present application aims to provide a dedusting apparatus, a battery manufacturing device, and a dedusting method, so as to improve the dedusting effect of a material belt. Embodiments of the present application are implemented as follows: In the first aspect, the embodiments of the present application provide a dedusting apparatus for removing dust on the surface of a material belt, and including a dust suction mechanism and a magnetic mechanism, wherein the magnetic mechanism is arranged opposite to the dust suction mechanism at an interval to form a gap for the material belt to pass through, and the magnetic mechanism is used for generating an alternating magnetic field. In the technical solution of the present application, by arranging the magnetic mechanism and the dust suction mechanism opposite to each other on both sides of the material belt in the thickness direction, when the material belt passes through the gap between the magnetic mechanism and the dust suction mechanism, metal dust passing through the gap with the material belt is affected by the alternating magnetic field and induced to form an eddy current, so that the metal dust generates an induced magnetic field opposite in direction to the original alternating magnetic field. Therefore, the metal dust is subjected to a repulsive force and bounces off from the material belt, and the dust suction mechanism sucks away the bounced metal dust, which effectively reduces the metal dust residue. At the same time, the dust suction mechanism is also capable of sucking away other dust with small weight, which effectively improves the dedusting effect. In one embodiment of the present application, the magnetic mechanism includes a magnetic roller, and the magnetic roller, when rotating, generates the alternating magnetic field. In the above technical solution, the rotation of the magnetic roller generates the alternating magnetic field, the overall structure is simple, and the reliability is high. In one embodiment of the present application, the magnetic mechanism further includes a driving assembly, and the driving assembly is used for driving the magnetic roller to rotate. In the above technical solution, by arranging the driving assembly to drive the magnetic roller to rotate actively relative to the material belt, it is ensured that the magnetic roller is capable of generating the alternating magnetic field and is high in reliability. In one embodiment of the present application, the magnetic mechanism further includes a bypass roller, and the bypass roller is used for guiding the material belt to move. The bypass roller is of a hollow structure, the bypass roller rotatably sleeves the magnetic roller, and the gap is formed between the outer peripheral surface of the bypass roller and the dust suction mechanism. In the above technical solution, on the one hand, the bypass roller rotates together with the material belt, thus achieving a good conveying effect. Moreover, the bypass roller separates the magnetic roller from the material belt, and the rotation of the magnetic roller does not affect conveying of the material belt, thereby ensuring stable conveying and effective dedusting of the material belt. On the other hand, the width of the material belt on the bypass roller will not be greater than the axial length of the bypass roller, that is, the axial length of the magnetic roller will not be less than the material belt, so that the material belt is entirely within a range of the alternating magnetic field of the magnetic roller in the width direction, thereby ensuring the dedusting effect. In one embodiment of the present application, the magnetic mechanism further includes a first bearing, and the magnetic roller is connected to the bypass roller through the first bearing. In the above technical solution, the first bearing is arranged to connect the magnetic roller and the bypass roller as a whole, the magnetic mech