Dust collection device and current collector cutting system
By designing a spiral nozzle and a dust collection device with opposing airflow, the problem of low dust cleaning efficiency in lithium battery manufacturing was solved, achieving efficient dust removal and static electricity elimination, reducing production costs and preventing cell short circuits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-10
AI Technical Summary
In the existing technology, the dust cleaning efficiency in the lithium battery manufacturing process is low, the manual cleaning is labor-intensive and it is difficult to ensure the thoroughness of dust removal, resulting in low production efficiency, and dust can easily cause safety hazards such as battery short circuits.
Design a dust collection device that uses a spiral nozzle to generate a spiral airflow. The first air duct draws in air, the second air duct blows air out air, and the two air ducts generate opposite airflow directions in the radial direction. Combined with a dust collection chamber, an air extraction source, a vacuum connector, and an antistatic needle, it can achieve efficient dust collection and static electricity elimination.
It significantly improves dust removal efficiency, reduces production costs, prevents metal dust from entering the battery cell, prevents short circuits in the battery cell, and ensures the continuity and safety of production.
Smart Images
Figure CN224101385U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of lithium battery manufacturing, and in particular, to a dust suction device and a current collector cutting system. BACKGROUND
[0002] At present, dust refers to solid particles suspended in the air. There are many names for dust, such as dust, dust, smoke, dust, sand, powder, etc. There is no clear boundary between these terms. The International Organization for Standardization defines solid suspended particles with a particle size of less than 75 μm as dust. In industrial production, especially in the field of lithium battery manufacturing, dust will affect the voltage drop of lithium ion batteries per unit time, thereby affecting the quality of lithium batteries. Serious dust generated in each process is easy to explode after accumulation.
[0003] In the prior art, manual cleaning is usually used to clean the above processes to reduce the impact of dust on lithium batteries. Manual cleaning has high labor intensity and low efficiency, and it is difficult to ensure the thoroughness and continuity of dust removal in frequent operations, which cannot meet the requirements of efficient production. CONTENT OF THE INVENTION
[0004] The purpose of the present disclosure is to provide a dust suction device and a current collector cutting system that can solve at least one of the above technical problems. The specific scheme is as follows:
[0005] According to the specific embodiment of the present disclosure, in one aspect, the present disclosure provides a dust suction device, which comprises: a shell provided with a mounting hole; a nozzle, which is a cylindrical structure, is assembled in the shell through the mounting hole, and is partially arranged inside the shell; wherein the nozzle comprises a first body inside the shell and a second body outside the shell, and the first body is conical; the nozzle has a first air duct and a second air duct, the second air duct covers the first air duct, and the first body is provided with a spiral nozzle at one end away from the second body, and the spiral nozzle is configured to generate wind directions in opposite directions in the radial direction of the first air duct and the second air duct.
[0006] In an optional embodiment, a dust collecting chamber is arranged in the shell, and the dust collecting chamber is in communication with the first air duct and the second air duct.
[0007] In an optional embodiment, the dust suction device further comprises: a gas suction source arranged in the shell, and the gas suction source is in communication with the first air duct.
[0008] In an optional embodiment, the dust collection device further comprises a vacuum joint, the vacuum joint is arranged between the air suction source and the first air duct, and the vacuum joint is arranged in the dust collection chamber, and the vacuum joint is configured to intercept dust sucked by the first air duct into the dust collection chamber.
[0009] In an optional embodiment, the dust collection device further comprises a filtering device, the filtering device is arranged between the second air duct and the dust collection chamber, and the filtering device is configured to prevent dust in the dust collection chamber from entering the second air duct.
[0010] In an optional embodiment, the dust collection device further comprises a static electricity removing needle, the static electricity removing needle is arranged in the first air duct, and one end of the static electricity removing needle is fixed to one end of the first body away from the second body.
[0011] In an optional embodiment, the dust collection device further comprises an ultrasonic vibrator, the ultrasonic vibrator is arranged inside the shell and on the outer wall of the first body.
[0012] In an optional embodiment, the spiral nozzle is a double-spiral rotating nozzle.
[0013] In an optional embodiment, the first body is a hollow cone, the second body is a hollow cylinder, and the static electricity removing needle passes through the center lines of the first body and the second body.
[0014] According to the specific embodiments of the present disclosure, in another aspect, the present disclosure provides a current collector cutting system, characterized in that comprising the dust collection device according to any one of the above technical solutions.
[0015] Compared with the prior art, the above-mentioned scheme of the embodiments of the present disclosure has at least the following beneficial effects:
[0016] The dust collection device provided by the present disclosure generates spiral airflow through the spiral nozzle, the first air duct inhales, the second air duct blows, and the airflow generated in the first air duct and the second air duct is opposite. The dust removal effect is obvious, and no spare parts are needed, no easy-to-damage parts, greatly reducing the production cost. It also avoids the entry of metal powder into the battery during the preparation of the battery, preventing the short circuit problem caused by the scattering of dust in the battery body during each process. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 The structure schematic diagram of the dust collection device in an embodiment of the present disclosure is shown.
[0018] Figure 2 The structure schematic diagram of the dust collection device in another embodiment of the present disclosure is shown.
[0019] Figure 3 A structural schematic diagram of a nozzle according to an embodiment of the present disclosure is shown.
[0020] Figure 4 A structural schematic diagram of a vacuum joint according to an embodiment of the present disclosure is shown.
[0021] Figure 5 A structural schematic diagram of a double helix rotating nozzle according to an embodiment of the present disclosure is shown.
[0022] Figure 6 A structural schematic diagram of a double helix rotating nozzle according to an embodiment of the present disclosure is shown.
[0023] Reference signs:
[0024] 100: housing; 110: dust collecting chamber;
[0025] 200: nozzle; 210: first body; 220: second body; 230: first air duct; 240: second air duct; 250: spiral nozzle; 251: spiral air duct; 252: air suction duct;
[0026] 300: air suction source;
[0027] 400: vacuum joint;
[0028] 500: static electricity removing needle;
[0029] 600: ultrasonic vibrator. DETAILED DESCRIPTION
[0030] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present disclosure.
[0031] The terms used in the embodiments of the present disclosure are only for the purpose of describing particular embodiments and are not intended to limit the present disclosure. The singular forms "a", "an" and "the" used in the embodiments of the present disclosure and the appended claims are intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.
[0032] It should be understood that the term "and / or" as used herein merely describes an associated relationship between associated objects, and can represent three relationships, for example, A and / or B can represent three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.
[0033] It should be understood that although the terms first, second, third, etc. can be used in the embodiments of the present disclosure to describe structures, these structures should not be limited to these terms. These terms are only used to distinguish different structures. For example, without departing from the scope of the embodiments of the present disclosure, the first component can also be referred to as the second component, and similarly, the second component can also be referred to as the first component.
[0034] Depending on the context, the word "if" as used herein can be interpreted to mean "when" or "upon" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if it is determined" or "if (a stated condition or event) is detected" can be interpreted to mean "when it is determined" or "in response to determining" or "when (a stated condition or event) is detected" or "in response to detecting (a stated condition or event)".
[0035] It should also be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that a product or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such product or device. Without more limitations, the element defined by the phrase "including a" does not exclude the presence of other identical elements in the product or device including the element.
[0036] In the related art, the dust removal air knife is an instrument for cleaning, air drying, drying and dust removal of workpieces in industry, which sends out uniform and strong airflow by connecting with a fan, so as to achieve the purposes of cleaning, air drying, drying and dust removal. However, the dust removal air knives on the market currently have poor cleaning effect, poor blowing efficiency, and do not have the functions of static electricity removal and ultrasonic dust vibration. Especially after the lithium battery tab is coated with metal paste, the slitting, die cutting and lamination process, when the cutter contacts the blank area (metal powder coating area), it is easy to produce welding slag dust. If this dust is not cleaned in time, it will easily cause short circuit or poor contact of the battery, and then affect the safety of the battery. The dust removal air knives on the market currently mostly adopt a single airflow blowing mode, which can remove most of the dust, but the cleaning effect of fine particles is not good. In addition, the traditional dust removal air knife cannot effectively eliminate static electricity, which is easy to cause the dust to be adsorbed on the surface of the workpiece again, affecting the cleaning effect.
[0037] In order to solve at least one of the above technical problems, the present disclosure provides a dust collection device and a current collector cutting system. The dust collection device comprises a housing 100 provided with a mounting hole; a nozzle 200 in a cylindrical structure, the nozzle 200 is assembled in the housing 100 through the mounting hole, and the nozzle 200 is partially arranged inside the housing 100; wherein the nozzle 200 comprises a first body 210 inside the housing 100 and a second body 220 outside the housing 100, the first body 210 is conical; the nozzle 200 has a first air duct 230 and a second air duct 240, the second air duct 240 covers the first air duct 230, and the first body 210 is provided with a spiral nozzle 250 at one end away from the second body 220, the spiral nozzle 250 is configured to generate air flow in the first air duct 230 and the second air duct 240 in opposite directions in the radial direction. The present disclosure blows and sucks air flow out of and into the vacuum dust cover through the spiral nozzle 250, and the dust collection device sucks the metal dust generated in the processes of slitting, die cutting, laminating and welding into the dust collection chamber 110 through blowing and sucking air.
[0038] The optional embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.
[0039] Figure 1 The structure schematic diagram of the dust collection device according to an embodiment of the present disclosure is shown. Figure 2 The structure schematic diagram of the dust collection device according to another embodiment of the present disclosure is shown. Figure 3 The structure schematic diagram of the nozzle 200 according to an embodiment of the present disclosure is shown. As shown in the figure, the nozzle 200 is in a cylindrical structure, and the nozzle 200 is assembled in the housing 100 through the mounting hole. Figure 1 、 Figure 2 and Figure 3As shown, according to the specific embodiments of the present disclosure, in one aspect, a dust suction device is provided, which comprises: a housing 100 provided with a mounting hole; a nozzle 200 in a cylindrical structure, the nozzle 200 is assembled in the housing 100 through the mounting hole, and the nozzle 200 is partially arranged inside the housing 100; wherein the nozzle 200 comprises a first body 210 inside the housing 100 and a second body 220 outside the housing 100, and the first body 210 is conical; the nozzle 200 has a first air duct 230 and a second air duct 240, the second air duct 240 covers the first air duct 230, and the first body 210 is provided with a spiral nozzle 250 at one end away from the second body 220, and the spiral nozzle 250 is configured to generate air flow in the radial direction with opposite directions in the first air duct 230 and the second air duct 240. The dust suction device provided by the present disclosure generates spiral air flow through the spiral nozzle 250, the first air duct 230 inhales air, the second air duct 240 blows air, and air flow with opposite directions is generated in the first air duct 230 and the second air duct 240. The dust removal effect is obvious, and no spare parts are needed, no easy-to-damage parts, and the production cost is greatly reduced. It also avoids the entry of metal powder into the battery during the preparation of the battery, and prevents the short circuit problem caused by the scattering of dust into the battery body in each process.
[0040] Figure 4 The structure of the vacuum connector in an embodiment of the present disclosure is shown. As shown in Figure 2 and Figure 4 As shown in some embodiments, a dust collecting chamber 110 is arranged in the housing 100, and the dust collecting chamber 110 is in communication with the first air duct 230 and the second air duct 240. In an optional embodiment, the dust suction device further comprises: a suction source 300 arranged in the housing 100, and the suction source 300 is in communication with the first air duct 230. In another optional embodiment, the dust suction device further comprises: a vacuum connector 400 arranged between the suction source 300 and the first air duct 230, and the vacuum connector 400 is arranged in the dust collecting chamber 110, and the vacuum connector 400 is configured to intercept the dust sucked into the first air duct 230 into the dust collecting chamber 110. In yet another optional embodiment, the dust suction device further comprises: a filtering device arranged between the second air duct 240 and the dust collecting chamber 110, and the filtering device is configured to prevent the dust in the dust collecting chamber 110 from entering the second air duct 240. In actual use, the suction source 300 sucks air, the first air duct 230 starts to suck dust, and the sucked dust enters the dust collecting chamber 110 through the vacuum connector 400, and the blown dust impurities are collected to prevent external overflow.
[0041] In some embodiments, the dust collection device further comprises a static electricity removing needle 500, which is arranged in the first air duct 230, one end of the static electricity removing needle 500 being fixed to the end of the first main body 210 away from the second main body 220. In an optional embodiment, the dust collection device further comprises an ultrasonic vibrator 600, which is arranged inside the shell 100 and on the outer wall of the first main body 210. The static electricity removing needle 500 can remove static electricity at the cleaning site, and the ultrasonic vibrator 600 can emit ultrasonic waves that propagate to the cleaning site through air as a medium. The ultrasonic waves can shake off dust and other impurities deposited on the surface of the object, thereby achieving the effect of separation and improving the cleaning cleanliness of the air knife.
[0042] Figure 5 A structural schematic diagram of a double helix rotating nozzle according to an embodiment of the present disclosure is shown. Figure 6 A structural schematic diagram of an air duct of a double helix rotating nozzle according to an embodiment of the present disclosure is shown. As shown in Figure 5 and Figure 6 In some embodiments, the spiral nozzle 250 is a double helix rotating nozzle. The double helix structure can form double channels in the air duct, increase the pressure of the air flow, and accelerate the rotation of the air flow, thereby increasing the dust removal effect. The rotating structure can also increase the pressure of the air flow when rotating. In an optional embodiment, the double helix rotating nozzle comprises a spiral air duct 251 arranged on the outer wall of the double helix rotating nozzle and a suction air duct 252 arranged at the center of the double helix rotating nozzle; the spiral air duct 251 is in communication with the second air duct 240, and the spiral air duct 251 is configured to generate a spiral blowing air flow; the suction air duct 252 is in communication with the first air duct 230, and the suction air duct 252 is configured to generate a suction air flow.
[0043] In some embodiments, the first main body 210 is a hollow cone, the second main body 220 is a hollow cylinder, and the static electricity removing needle 500 passes through the center lines of the first main body 210 and the second main body 220 at the same time.
[0044] According to the specific embodiments of the present disclosure, in another aspect, a dust collection device is provided, which comprises a current collector cutting system as described in any of the above embodiments.
[0045] The present disclosure aims to protect a dust collection device and a current collector cutting system, which comprises a shell 100 provided with a mounting hole; a nozzle 200 in a cylindrical structure, which is assembled to the shell 100 through the mounting hole, and partially arranged inside the shell 100; wherein the nozzle 200 comprises a first body 210 inside the shell 100 and a second body 220 outside the shell 100, and the first body 210 is conical; the nozzle 200 has a first air duct 230 and a second air duct 240, the second air duct 240 covers the first air duct 230, and the first body 210 is provided with a spiral nozzle 250 at one end away from the second body 220, which is configured to generate air flow in the radial direction in opposite directions. The present disclosure blows and sucks air into the vacuum dust cover through the spiral nozzle 250, and the dust collection device sucks the metal dust generated in the cutting, die cutting, laminating and welding processes into the dust collection chamber 110 through blowing and sucking air. The dust collection device provided by the present disclosure generates spiral air flow through the spiral nozzle 250, the first air duct 230 sucks air, the second air duct 240 blows air, and the air flow in the first air duct 230 and the second air duct 240 is reversed. The dust removal effect is obvious, and no spare parts are needed, no easy-to-damage parts, which greatly reduces the production cost. It also avoids the entry of metal powder into the battery cell during the preparation of the battery cell, and prevents the short circuit problem caused by the scattering of dust in the battery cell body during the process.
[0046] Finally, it should be noted that: the embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to each other. For the system or device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant part can be referred to the method part.
[0047] The above embodiments are only used to illustrate the technical solutions of the present disclosure, but not limit them; although the foregoing disclosure has been described in detail, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.
Claims
1. A dust extraction device, characterized in that, The dust collector comprises: a housing provided with a mounting hole; a nozzle in a cylindrical structure, the nozzle being assembled to the housing through the mounting hole, and the nozzle being partially arranged inside the housing; wherein the nozzle comprises a first body inside the housing and a second body outside the housing, the first body being conical; the nozzle has a first air duct and a second air duct, the second air duct covering the first air duct, and the first body being provided with a spiral nozzle at an end away from the second body, the spiral nozzle being configured to generate air flows in opposite directions in the radial direction of the first air duct and the second air duct.
2. The dust collector according to claim 1, wherein: a dust collecting chamber is arranged in the housing, and the dust collecting chamber is in communication with the first air duct and the second air duct.
3. The dust extraction device of claim 2, wherein, Further comprising: a suction source arranged in the housing, the suction source being in communication with the first air duct.
4. The dust extraction device of claim 3, wherein, Further comprising: a vacuum joint arranged between the suction source and the first air duct, and the vacuum joint being arranged in the dust collecting chamber, the vacuum joint being configured to intercept dust sucked into the first air duct into the dust collecting chamber.
5. The dust extraction device of claim 2, wherein, Further comprising: a filtering device arranged between the second air duct and the dust collecting chamber, the filtering device being configured to prevent dust in the dust collecting chamber from entering the second air duct.
6. The dust extraction device of claim 1, wherein, Further comprising: an electrostatic needle arranged in the first air duct, one end of the electrostatic needle being fixed to the end of the first body away from the second body.
7. The dust extraction device of claim 1, wherein, Further comprising: an ultrasonic vibrator arranged inside the housing and on the outer wall of the first body.
8. The dust collector according to claim 1, wherein: the spiral nozzle is a double spiral rotating nozzle.
9. The dust collector according to claim 6, wherein: the first body is a hollow cone, the second body is a hollow cylinder, and the electrostatic needle passes through the center lines of the first body and the second body.
10. A current collector cutting system, characterized by, The dust collector comprises: any one of the dust collectors according to claims 1-9.