Dust treatment device and battery cell winding equipment

Abstract

The utility model discloses a dust treatment device and discloses a battery cell winding device with the dust treatment device, the dust treatment device comprises a winding area, a dust collection area and a dust collection area, the winding area is provided with a central shaft, the central shaft is used for forming a winding center of a battery cell, and the battery cell comprises a pole piece and a diaphragm which are arranged in a winding manner; the air blowing mechanism comprises air blowing openings formed in the radial direction of the central shaft, at least one air blowing opening is formed in a gap between each pole piece and each diaphragm, and the air blowing openings are used for blowing dust on the surfaces of the pole pieces and the diaphragms to the outside from the inside of the winding area; the dust collection mechanism comprises a dust collection opening formed in the radial direction of the center shaft, the winding area is formed between the dust collection opening and the air blowing opening, and the dust collection opening is used for extracting dust from the winding area. According to the utility model, dust can be removed before the battery cell is wound, so that the dust entrained into the battery cell is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core manufacturing equipment, in particular to a dust treatment device and a battery core winding device. Background Art

[0002] Typically, the cell winding process involves winding the left electrode, upper separator, right electrode, and lower separator together to form a cell.

[0003] Since each process of manufacturing electrode will generate electrode dust and other metal dust, although corresponding dust removal mechanisms are set up in most of the electrode manufacturing processes to remove dust, it is inevitable that some dust will be scattered onto the electrode and diaphragm surfaces in the winding process area, and finally be wound into the battery cell as the electrode is wound, affecting the quality of the battery cell and posing the risk of battery cell short circuit explosion.

[0004] Therefore, a dust treatment device is added to the winding area of ​​the battery cell winding equipment to reduce the dust from being drawn into the battery cell during the battery cell winding process. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a dust treatment device that can remove dust before winding the battery core, thereby greatly reducing the amount of dust that is drawn into the battery core.

[0006] The utility model also provides a battery core winding device having the above-mentioned dust treatment device.

[0007] According to a first aspect of the present invention, a dust handling device is provided, comprising: a winding area having a central axis, wherein the central axis is used to form a winding center of a battery cell, wherein the battery cell comprises a pole piece and a diaphragm that are wound; an air blowing mechanism, comprising an air blowing port arranged in a radial direction of the central axis, wherein at least one air blowing port is arranged in a gap between each pole piece and the diaphragm, wherein the air blowing port is used to blow dust on the surface of the pole piece and the diaphragm from the inside of the winding area to the outside; a dust suction mechanism, comprising a dust suction port arranged in a radial direction of the central axis, wherein the winding area is formed between the dust suction port and the air blowing port, and wherein the dust suction port is used to extract dust from the winding area.

[0008] According to a dust treatment device and battery cell winding equipment of the first aspect embodiment of the present invention, the blowing mechanism includes a blowing rod, and one blowing rod is arranged in the gap between each pole piece and the diaphragm, and a plurality of blowing ports are provided at the end of the blowing rod.

[0009] According to a dust treatment device and a battery core winding device of an embodiment of the first aspect of the present utility model, a plurality of blowing rods are provided, and the plurality of blowing rods are distributed in a radial arc shape along the central axis.

[0010] According to a dust treatment device and a battery cell winding device of an embodiment of the first aspect of the present invention, the blowing mechanism includes a first bracket, the first bracket is connected to the blowing rod, and an arc groove is provided at the bottom of the first bracket.

[0011] According to a dust handling device and a battery core winding device in accordance with the first embodiment of the present invention, the dust suction port is waist-shaped.

[0012] According to a dust handling device and a battery cell winding device in accordance with the first aspect of the present invention, the dust suction mechanism includes a dust suction pipe and a connecting pipe connected to the dust suction pipe, the dust suction pipe is provided with the dust suction port, and the maximum diameter of the dust suction pipe is greater than the maximum diameter of the connecting pipe.

[0013] According to a dust handling device and a battery cell winding device in accordance with an embodiment of the first aspect of the present invention, the dust collection mechanism includes a mounting frame having a mounting hole for mounting the connecting pipe.

[0014] According to a dust handling device and battery cell winding equipment of the first aspect embodiment of the present invention, the dust suction mechanism includes a second bracket, the second bracket is connected to the mounting frame, and a locking bolt and a waist-shaped hole for accommodating the locking bolt are provided between the second bracket and the mounting frame.

[0015] According to a second aspect of an embodiment of the present invention, a battery cell winding device includes any one of the dust treatment devices described above.

[0016] According to some embodiments of the present invention, a winding shaft is included, which is coaxially arranged on the central axis and is used for winding the battery core.

[0017] A dust treatment device and a battery cell winding device according to an embodiment of the present invention have at least the following beneficial effects:

[0018] The utility model provides an air blowing port and a dust suction port, and the air blowing port and the dust suction port are arranged in the radial direction of the central axis, and a winding area is formed between the air blowing port and the dust suction port. Before the pole piece and the diaphragm are wound to form a battery cell, the air blowing port can blow air into the gap between each pole piece and the diaphragm, and blow the dust on the surface of the opposite side of the pole piece and the diaphragm from the inside of the winding area to the outside, which greatly reduces the dust from being drawn into the battery cell. At the same time, the dust suction port can extract the dust from the winding area in a vacuum negative pressure manner, avoiding the dust from adhering to the surface of the pole piece and the diaphragm again, ensuring that the dust on the surface of the pole piece and the diaphragm is cleared before the battery cell winding operation is carried out, thereby greatly improving the quality and safety of the battery cell.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic structural diagram of a dust treatment device and a battery cell winding device according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 A top view of a dust treatment device and a battery cell winding device is shown;

[0023] Figure 3 for Figure 1 A side view of a dust handling device is shown;

[0024] Figure 4 for Figure 1 A schematic structural diagram of an air blowing mechanism of a dust treatment device is shown;

[0025] Figure 5 for Figure 1 The figure shows a schematic structural diagram of a dust collection mechanism of a dust treatment device.

[0026] Figure markings: 100-winding area, 110-blowing port, 120-dust suction port, 130-blowing rod, 140-first bracket, 150-arc groove, 160-dust suction pipe, 170-connecting pipe, 180-mounting frame, 190-second bracket, 200-waist hole, 210-winding shaft, 220-left pole piece, 230-upper diaphragm, 240-right pole piece, 250-lower diaphragm. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 therefore cannot be understood as a limitation on the present invention.

[0029] In the description of this utility model, "several" means one or more, "more" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. If a first or second is mentioned, this is solely for the purpose of distinguishing the technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0030] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted, connected, and connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] A dust treatment device and a battery cell winding device according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0032] Reference Figure 1 , the utility model aims to provide an embodiment of a dust treatment device and a battery core winding device.

[0033] In this embodiment, a battery cell winding device mainly includes a winding device and a dust treatment device, and the dust treatment device is used to remove dust on the surface of the electrode and the diaphragm before winding.

[0034] In some embodiments of the present invention, referring to Figure 2 The winding device mainly includes a winding shaft 210, which is coaxially arranged on the central axis of the winding area 100, and is used for winding the battery core.

[0035] The structure of the battery cell includes a left pole piece 220, an upper diaphragm 230, a right pole piece 240 and a lower diaphragm 250 that are wound. During the winding process, the winding shaft 210 winds the left pole piece 220, the upper diaphragm 230, the right pole piece 240 and the lower diaphragm 250 to form a battery cell.

[0036] A dust handling device according to an embodiment of the present invention includes a winding area 100, an air blowing mechanism and a dust suction mechanism. The winding area 100 has a central axis, which is used to form a winding center of the battery cell. The battery cell includes a pole piece and a diaphragm that are wound; the air blowing mechanism includes an air blowing port 110 arranged in the radial direction of the central axis, and at least one air blowing port 110 is arranged in the gap between each pole piece and the diaphragm. The air blowing port 110 is used to blow dust on the surface of the pole piece and the diaphragm from the inside of the winding area 100 to the outside; the dust suction mechanism includes a dust suction port 120 arranged in the radial direction of the central axis. The winding area 100 is formed between the dust suction port 120 and the air blowing port 110, and the dust suction port 120 is used to extract dust from the winding area 100.

[0037] It can be understood that the air blowing port 110 and the dust suction port 120 are arranged in the radial direction of the central axis, and a winding area 100 is formed between the air blowing port 110 and the dust suction port 120. Before the pole piece and the diaphragm are wound to form a battery cell, the air blowing port 110 can blow air into the gap between each pole piece and the diaphragm, and blow the dust on the surface of the opposite side of the pole piece and the diaphragm from the inside of the winding area 100 to the outside, thereby greatly reducing the dust from being drawn into the battery cell. At the same time, the dust suction port 120 can extract the dust from the winding area 100 in a vacuum negative pressure manner to prevent the dust from adhering to the surface of the pole piece and the diaphragm again, and ensure that the dust on the surface of the pole piece and the diaphragm is removed before the battery cell winding operation is carried out, thereby greatly improving the quality and safety of the battery cell.

[0038] In some embodiments of the present invention, the blowing mechanism includes a blowing rod 130 . A blowing rod 130 is correspondingly arranged in the gap between each pole piece and the diaphragm. A plurality of blowing ports 110 are provided at the end of the blowing rod 130 .

[0039] Since the gaps between the left pole piece 220, the upper diaphragm 230, the right pole piece 240 and the lower diaphragm 250 all require a blowing rod 130 to remove dust, by setting up the blowing rod 130, the blowing rod 130 has a small diameter and occupies a small space, making the arrangement of the blowing mechanism easier, and the blowing port 110 of the blowing rod 130 can accurately blow air into the gap between the pole piece and the diaphragm.

[0040] It should be noted that the plurality of blowing ports 110 may be arranged along the radial direction of the blowing rod 130 , which is beneficial for blowing the dust on the surfaces of the pole piece and the diaphragm on the opposite side from the inside of the winding area 100 to the outside.

[0041] In some embodiments of the present invention, a plurality of blowing rods 130 are provided, and the plurality of blowing rods 130 are distributed in a radial arc shape along the central axis.

[0042] The gap between the pole piece and the diaphragm is very small, and a plurality of blowing rods 130 are distributed in a radial arc along the central axis. Such an arrangement of the blowing rods 130 is conducive to the blowing port 110 being aligned with the gap between the pole piece and the diaphragm for blowing.

[0043] In some embodiments of the present invention, referring to Figure 3 and Figure 4 The blowing mechanism includes a first bracket 140, which is connected to the blowing rod 130. An arc groove 150 is provided at the bottom of the first bracket 140. It can be understood that the arc groove 150 can avoid the structure of the winding device.

[0044] In some embodiments of the present invention, the dust suction port 120 is set in a waist shape. The advantage of this setting is that the dust suction range of the dust suction port 120 is increased, and the diameter of the dust suction port 120 can be prevented from being set too large.

[0045] In some embodiments of the present invention, referring to Figure 2 and Figure 4 The dust collection mechanism includes a dust collection pipe 160 and a connecting pipe 170 connected to the dust collection pipe 160 . The dust collection pipe 160 is provided with a dust collection port 120 . The maximum diameter of the dust collection pipe 160 is greater than the maximum diameter of the connecting pipe 170 .

[0046] It should be noted that the dust collection mechanism also includes a vacuum cleaner, which is connected to the connecting pipe 170. Under the suction action of the vacuum cleaner, the dust collection pipe 160 extracts dust, and the dust enters the vacuum cleaner through the connecting pipe 170. At the same time, the maximum diameter of the connecting pipe 170 is set to be smaller than the maximum diameter of the dust collection pipe 160. This setting can reduce the space occupied by the connecting pipe 170.

[0047] In some embodiments of the present invention, the dust suction mechanism includes a mounting bracket 180, which has a mounting hole for installing a connecting pipe 170. Furthermore, the dust suction mechanism includes a second bracket 190, which is connected to the mounting bracket 180. A locking bolt and a waist-shaped hole 200 for accommodating the locking bolt are provided between the second bracket 190 and the mounting bracket 180. Therefore, the locking bolt can be loosened to adjust the relative position between the second bracket 190 and the mounting bracket 180, thereby adjusting the dust suction position of the dust suction port 120.

[0048] Throughout this specification, references to terms such as "one embodiment, some embodiments, exemplary embodiments, examples, specific examples, or some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0049] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A dust treatment device, characterized in that: include: A winding region (100) having a central axis, the central axis being used to form a winding center of a battery cell, the battery cell comprising a pole piece and a diaphragm arranged in a wound manner; An air blowing mechanism comprises an air blowing port (110) provided in a radial direction of the central axis, at least one air blowing port (110) being arranged in a gap between each pole piece and the diaphragm, the air blowing port (110) being used to blow dust on the surfaces of the pole piece and the diaphragm from the inside of the winding area (100) to the outside; The dust suction mechanism comprises a dust suction port (120) arranged in the radial direction of the central axis, the winding area (100) is formed between the dust suction port (120) and the air blowing port (110), and the dust suction port (120) is used to extract dust from the winding area (100).

2. A dust treatment device according to claim 1, characterized in that: The blowing mechanism comprises a blowing rod (130), one blowing rod (130) being arranged correspondingly in the gap between each pole piece and the diaphragm, and a plurality of blowing ports (110) being provided at the end of the blowing rod (130).

3. A dust treatment device according to claim 2, characterized in that: A plurality of the blowing rods (130) are provided, and the plurality of blowing rods (130) are distributed in a radial arc shape along the central axis.

4. A dust treatment device according to claim 2, characterized in that: The blowing mechanism comprises a first bracket (140), the first bracket (140) being connected to the blowing rod (130), and an arc-shaped groove (150) being provided at the bottom of the first bracket (140).

5. The dust treatment device according to claim 1, characterized in that: The dust suction port (120) is arranged in a waist shape.

6. The dust treatment device according to claim 1, characterized in that: The dust suction mechanism comprises a dust suction pipe (160) and a connecting pipe (170) connected to the dust suction pipe (160); the dust suction port (120) is provided on the dust suction pipe (160); and the maximum diameter of the dust suction pipe (160) is greater than the maximum diameter of the connecting pipe (170).

7. A dust treatment device according to claim 6, characterized in that: The dust collection mechanism comprises a mounting frame (180), wherein the mounting frame (180) has a mounting hole for mounting the connecting pipe (170).

8. A dust treatment device according to claim 7, characterized in that: The dust collection mechanism comprises a second bracket (190), the second bracket (190) being connected to the mounting frame (180), and a locking bolt and a waist-shaped hole (200) for accommodating the locking bolt being provided between the second bracket (190) and the mounting frame (180).

9. A battery core winding device, characterized in that: A dust treatment device comprising any one of claims 1 to 8.

10. The battery core winding device according to claim 9, characterized in that: It comprises a winding shaft (210), the winding shaft (210) being coaxially arranged on the central shaft, and the winding shaft (210) being used for winding the battery core.

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