Filtering device

Abstract

The utility model provides a filtering device. The filtering device comprises a filtering assembly and a driving assembly, the filtering assembly comprises a collecting cylinder and a filtering cylinder with filtering holes in the side wall, the filtering cylinder is detachably fixed in the collecting cylinder, and a collecting space is defined by the filtering cylinder and the collecting cylinder. The driving assembly is in transmission connection with the collecting cylinder and used for driving the filtering cylinder to rotate through the collecting cylinder. The driving assembly drives the filtering cylinder to rotate at a high speed through the collecting cylinder, conductive slurry in the filtering cylinder passes through the filtering holes in the side wall of the filtering cylinder under the action of centrifugal force and is centrifuged into the collecting space, and foreign matter such as impurities and disintegrating slag mixed in the conductive slurry cannot pass through the filtering holes and remains in the filtering cylinder; the quality of the filtered conductive slurry is guaranteed, meanwhile, automatic filtering of the conductive slurry is achieved, the manual labor intensity is relieved, the manual time is shortened, and the filtering efficiency of the conductive slurry is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery cell conductive slurry recycling, and in particular to a filtration device. Background Technology

[0002] In the manufacturing process of solar cells, a screen printing process is required before they become actual solar cells. This process involves using a printing machine to print conductive paste onto the front and back of the solar cell according to a screen pattern. During the printing of conductive patterns, unforeseen circumstances can inevitably occur, such as screen quality issues, equipment parameter settings deviations, printing table debris, or foreign objects in the incoming material, causing the screen to break. After these anomalies occur, the remaining paste must be manually collected and filtered before it can be reused. However, the current method of manually filtering the paste is not only time-consuming and inefficient, but also cannot guarantee the quality of the filtered paste. Utility Model Content

[0003] Therefore, it is necessary to provide a filtration device to address the problems of existing manual slurry filtration methods, which not only require a lot of manual time and have low filtration efficiency, but also cannot guarantee the quality of the filtered slurry.

[0004] The technical solution is as follows:

[0005] On one hand, a filtration device is provided for filtering conductive slurry in battery cells, the filtration device comprising:

[0006] A filter assembly includes a collection cylinder and a filter cylinder with filter holes on its side wall. The filter cylinder is detachably fixed inside the collection cylinder and together with the collection cylinder forms a collection space.

[0007] A drive assembly is connected to the collection cylinder and is used to drive the filter cylinder to rotate via the collection cylinder.

[0008] In the above-described filtration device, when in use, a filter cylinder with a suitable pore size is selected according to the particle size of the conductive slurry to be filtered. After the filter cylinder is fixed inside the collection cylinder, the conductive slurry is placed in the filter cylinder. The drive component drives the filter cylinder to rotate at high speed through the collection cylinder. Under the action of centrifugal force, the conductive slurry in the filter cylinder passes through the filter holes on the side wall of the filter cylinder and is centrifuged into the collection space. Impurities, debris and other foreign objects mixed in the conductive slurry cannot pass through the filter holes and remain in the filter cylinder, ensuring the quality of the filtered conductive slurry. At the same time, it also realizes automatic filtration of conductive slurry, reduces manual labor intensity and time, and improves the filtration efficiency of conductive slurry.

[0009] The technical solution will be further explained below:

[0010] In one embodiment, the filter assembly further includes a locking member mounted on the collection cylinder and used to lock the collection cylinder and the filter cylinder together.

[0011] In one embodiment, the locking element is a set screw, and the side wall of the collecting cylinder is provided with a group of fixing holes having at least one threaded hole. All the threaded holes in the fixing hole group are spaced apart along the circumference of the collecting cylinder. The number of set screws and the number of threaded holes are the same. Each set screw is threadedly connected to each threaded hole and is tightly fitted to the filter cylinder to fix the filter cylinder.

[0012] In one embodiment, the number of fixing hole groups is at least one, and each fixing hole group is spaced apart along the axial direction of the collecting cylinder.

[0013] In one embodiment, the drive assembly includes a drive member and a rotating platform that is drively connected to the drive member, and the collection cylinder is mounted on the rotating platform.

[0014] In one embodiment, the number of filter components is at least one, and each filter component is spaced apart about the rotation axis of the rotating platform and is mounted on the rotating platform.

[0015] In one embodiment, the filtration device further includes a fixed bracket mounted on the rotating platform, wherein the collection cylinders of each of the filtration components are detachably mounted on the fixed bracket.

[0016] In one embodiment, the drive assembly further includes a transmission rod, the bottom end of which is connected to the drive member, and the top end of which is fixedly connected to the rotating platform. The filter device further includes a partition coaxially disposed with the rotating platform, the partition being sleeved on the outer wall of the transmission rod and fixedly connected to the transmission rod, and the outer diameter of the partition being larger than the outer diameter of the rotating platform.

[0017] In one embodiment, the top of the collection cylinder is provided with a first cylinder opening, the top of the filter cylinder is provided with a second cylinder opening, and the filter assembly further includes a transparent cover, which is placed on the first cylinder opening and the second cylinder opening to close the first cylinder opening and the second cylinder opening.

[0018] In one embodiment, the filtration device further includes a cover and a housing with an opening at the top, wherein the drive assembly and the filtration assembly are both installed inside the housing, and the cover is disposed on the opening to close the opening. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a filtering device according to one embodiment.

[0022] Figure 2 A front view of a filtering device according to another embodiment.

[0023] Figure 3 for Figure 2 A top view of the filtration device.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Filtering device; 100. Filtering assembly; 110. Collection cylinder; 111. Fixing hole group; 1111. Threaded hole; 112. First cylinder opening; 120. Filter cylinder; 121. Second cylinder opening; 200. Drive assembly; 210. Drive component; 220. Rotating platform; 230. Transmission rod; 310. Fixed bracket; 320. Partition plate; 410. Machine cover; 420. Machine casing; 430. Fixed feet. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] like Figure 1 As shown, in one embodiment, a filtration device 10 is provided for filtering conductive slurry from battery cells. The filtration device 10 includes a filtration assembly 100 and a drive assembly 200. The filtration assembly 100 includes a collection cylinder 110 and a filter cylinder 120 with filter holes on its sidewalls. The filter cylinder 120 is detachably fixed inside the collection cylinder 110 and forms a collection space with the collection cylinder 110. The drive assembly 200 is drively connected to the collection cylinder 110 and is used to drive the filter cylinder 120 to rotate via the collection cylinder 110.

[0028] In the above embodiment, the filtration device 10, when in use, selects a filter cylinder 120 with a suitable pore size according to the particle size of the conductive slurry to be filtered, and fixes the filter cylinder 120 inside the collection cylinder 110. Then, the conductive slurry is placed in the filter cylinder 120, and the drive component 200 drives the filter cylinder 120 to rotate at high speed through the collection cylinder 110. Under the action of centrifugal force, the conductive slurry in the filter cylinder 120 passes through the filter holes on the side wall of the filter cylinder 120 and is centrifuged into the collection space. Impurities, debris and other foreign objects mixed in the conductive slurry cannot pass through the filter holes and remain in the filter cylinder 120, ensuring the quality of the filtered conductive slurry. At the same time, it also realizes the automatic filtration of conductive slurry, reduces the intensity and time of manual labor, and improves the filtration efficiency of conductive slurry.

[0029] It should be noted that the filter holes on the side wall of the filter cartridge 120 can be formed by laser processing technology. That is, the filter cartridge 120 with different filter hole diameters can be processed by laser processing technology to match conductive pastes of any particle size on the market.

[0030] It should be noted that the collection space refers to the space enclosed by the outer wall of the filter cylinder 120 and the inner wall of the collection cylinder 110.

[0031] Furthermore, the filter assembly 100 also includes a locking member, which is installed on the collection cylinder 110 and used to lock the collection cylinder 110 and the filter cylinder 120 together. In this way, the filter cylinder 120 is detachably fixed inside the collection cylinder 110 by the locking member, which facilitates the assembly and disassembly of the filter cylinder 120. At the same time, after the filter cylinder 120 is disassembled, it is also convenient to remove the conductive slurry in the collection space, thereby improving the practicality of the filter device 10.

[0032] The locking element can be a locking bolt, a locking clamp, or other locking structure. The number of locking elements can be flexibly adjusted according to actual usage needs.

[0033] like Figure 1 As shown, optionally, the locking element is a set screw. The side wall of the collecting cylinder 110 is provided with a group of fixing holes 111 having at least one threaded hole 1111. All the threaded holes 1111 in the fixing hole group 111 are spaced apart along the circumference of the collecting cylinder 110. The number of set screws is the same as the number of threaded holes 1111. Each set screw is threadedly connected to each threaded hole 1111 and is tightened against the filter cylinder 120 to fix the filter cylinder 120. In this way, the filter cylinder 120 is tightened and fixed by multiple set screws, so that the inner wall of the filter cylinder 120 can be spaced apart from the inner wall of the collecting cylinder 110, ensuring that all the filter holes on the filter cylinder 120 can be used to filter conductive slurry, thereby improving the practicality of the filter device 10.

[0034] like Figure 1 As shown, optionally, the number of fixing hole groups 111 is at least one, and each fixing hole group 111 is arranged at intervals along the axial direction of the collecting cylinder 110. In this way, by providing multiple fixing hole groups 111, the force distribution of the filter cylinder 120 along its own axial direction is more uniform, ensuring that the filter cylinder 120 will not tilt during use, and improving the reliability of the filtration device 10.

[0035] Specifically, in this embodiment, there are two fixing hole groups 111, located at the top and bottom ends of the side wall of the collecting cylinder 110, respectively. Each fixing hole group 111 includes four threaded holes 1111, which are evenly spaced around the axis of the collecting cylinder 110. Each threaded hole 1111 extends radially along the collecting cylinder 110.

[0036] like Figure 1 and Figure 2 As shown, in one embodiment, the drive assembly 200 includes a drive member 210 and a rotating platform 220 that is pulverically connected to the drive member 210. The collection cylinder 110 is mounted on the rotating platform 220. Thus, the filter assembly 100 is mounted on the rotating platform 220 and pulverically connected to the drive member 210 via the rotating platform 220, improving the ease of assembly of the filter device 10.

[0037] The drive component 210 can be configured as a rotary motor, rotary cylinder, rotary hydraulic cylinder, or other drive structure. Specifically, in this embodiment, the filtration device 10 can also achieve one-stop operation. According to different task requirements, the parameters of the drive component 210 can be set accordingly (in other words, the rotation speed of the rotating platform 220 can be controlled by controlling the parameters of the drive component 210, thereby controlling the magnitude of the centrifugal force on the conductive slurry in the filter cylinder 120), which can quickly and efficiently complete the filtration of conductive slurry and improve the practicality of the filtration device 10.

[0038] like Figure 2 and Figure 3 As shown, the number of filter components 100 is at least one, and each filter component 100 is spaced apart around the rotation axis of the rotating platform 220 and is mounted on the rotating platform 220. In this way, by increasing the number of filter components 100, the filtration efficiency of conductive slurry can be improved, and different filter components 100 can also filter conductive slurries of different particle sizes at the same time, thereby improving the practicality of the filtration device 10.

[0039] It should be noted that when there is one filter element 100, the filter device 10 corresponds to a single-cylinder filter device. When there are two filter elements 100, the filter device 10 corresponds to a dual-cylinder filter device. When there are three or more filter elements 100, the filter device 10 corresponds to a multi-cylinder filter device.

[0040] like Figure 1 As shown, optionally, the filter device 10 also includes a fixing bracket 310, which is mounted on the rotating platform 220. The collection cylinders 110 in each filter assembly 100 are detachably mounted on the fixing bracket 310. Thus, the filter assembly 100 can be assembled and then mounted on the fixing bracket 310, and the filter assembly 100 can also be removed from the fixing bracket 310 for further disassembly, improving the ease of assembly of the filter device 10.

[0041] The collection cylinder 110 can be fixed to the fixing bracket 310 by screwing, snapping, or other detachable means. Specifically, in this embodiment, the fixing bracket 310 is installed on the top surface of the rotating platform 220, and each filter component 100 is installed above the fixing bracket 310.

[0042] like Figure 2 As shown, optionally, the drive assembly 200 further includes a transmission rod 230, the bottom end of which is connected to the drive member 210, and the top end of which is fixedly connected to the rotating platform 220. The filter device 10 also includes a partition 320 coaxially arranged with the rotating platform 220, the partition 320 being sleeved on the outer side wall of the transmission rod 230 and fixedly connected to the transmission rod 230. The outer diameter of the partition 320 is larger than the outer diameter of the rotating platform 220. Thus, the partition 320 can effectively isolate the rotating platform 220 from the drive member 210, improving the reliability of the filter device 10. In addition, since the outer diameter of the partition 320 is larger than the outer diameter of the rotating platform 220, when the transmission rod 230 shakes significantly under centrifugal force, the partition 320 will first collide with surrounding objects relative to the rotating platform 220, thus protecting the rotating platform 220 and further improving the reliability of the filter device 10.

[0043] The rotating platform 220 can be fixedly connected to the top of the transmission rod 230 by screwing, snapping or other detachable means.

[0044] In one embodiment, the top of the collecting cylinder 110 is provided with a first opening 112. The top of the filtering cylinder 120 is provided with a second opening 121. The filtering assembly 100 also includes a transparent cover, which is disposed on the first opening 112 and the second opening 121 to seal them. In this way, the transparent cover can prevent the conductive slurry in the filtering cylinder 120 and the collecting cylinder 110 from being thrown out, while also facilitating the observation of the conditions inside the filtering cylinder 120 and the collecting cylinder 110, thereby improving the practicality of the filtering device 10.

[0045] Specifically, in this embodiment, the end face of the first cylindrical opening 112 and the end face of the second cylindrical opening 121 are located on the same plane. The transparent cover is an acrylic cover plate. When the acrylic cover plate is placed on the end face of the first cylindrical opening 112, the acrylic cover plate also correspondingly closes the first cylindrical opening 112 and the second cylindrical opening 121.

[0046] like Figure 2 and Figure 3 As shown, in one embodiment, the filter device 10 further includes a cover 410 and a housing 420 with an opening at the top. The drive assembly 200 and the filter assembly 100 are both installed inside the housing 420, and the cover 410 is placed over the opening to close it. Thus, the housing 420 and the cover 410 can cooperate to form a closed space, within which the filter assembly 100 and the drive assembly 200 are installed. This provides protection and noise reduction for the housing 420 and the cover 410, improving the reliability of the filter device 10.

[0047] like Figure 2 and Figure 3 As shown, specifically in this embodiment, the bottom of the chassis 420 is provided with four fixing feet 430, which are used to fix the chassis 420. In this way, the filter device 10 can be installed and fixed by the fixing feet 430, preventing the filter device 10 from shaking during operation and improving the reliability of the filter device 10.

[0048] To facilitate a further understanding of the working principle of the filter device 10, the following will describe in detail one of the methods of using the filter device 10.

[0049] First, select a filter cylinder 120 with a suitable pore size according to the particle size of the conductive slurry, and fix it inside the collection cylinder 110 with a set screw. Manually shake the filter cylinder 120 to check if it is securely fixed. Next, after fixing the filter cylinder 120, fix the collection cylinder 110 to the fixing bracket 310 with fastening screws. Then, place the conductive slurry to be filtered into the filter cylinder 120, and then lock the acrylic cover plate to the top of the filter cylinder 120 and the collection cylinder 110 for easy observation of the filtration status of the conductive slurry. Next, set the parameters of the drive unit 210 and start the drive unit 210. The drive unit 210 drives the filter cylinder 120 to rotate at high speed through the rotating platform 220 and the collection cylinder 110. Under the action of centrifugal force, the conductive slurry inside the filter cylinder 120 passes through the filter holes on the side wall of the filter cylinder 120 and is centrifuged into the collection space, while impurities, debris, and other foreign objects mixed in the conductive slurry cannot pass through the filter holes and remain in the filter cylinder 120. Finally, after the conductive slurry in the filter cartridge 120 has been filtered, the drive unit 210 stops, the machine cover 410 is opened, the acrylic cover plate is opened, the fixing screws of the collection cartridge 110 are removed, the filter cartridge 120 is taken out, and the filtered conductive slurry is completely collected with a scraper for later use.

[0050] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0051] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0055] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A filtering device applied to filtering of conductive paste of a battery piece, characterized in that, The application relates to a filter device (10) comprising: a filter assembly (100) comprising a collecting cylinder (110) and a filter cylinder (120) with a side wall provided with filter holes, the filter cylinder (120) being detachably fixed in the collecting cylinder (110) and surrounding the collecting cylinder (110) to form a collecting space; a driving assembly (200) in driving connection with the collecting cylinder (110) and used for driving the filter cylinder (120) to rotate through the collecting cylinder (110).

2. The filter device of claim 1, wherein, The filter assembly (100) further comprises a locking member, which is installed on the collecting cylinder (110) and used for locking the collecting cylinder (110) and the filter cylinder (120) as a whole.

3. The filter device of claim 2, wherein, The locking member is provided as a jackscrew, the side wall of the collecting cylinder (110) is provided with a fixing hole group (111) with at least one threaded hole (1111), all the threaded holes (1111) in the fixing hole group (111) are arranged along the circumference of the collecting cylinder (110), the number of the jackscrews is the same as that of the threaded holes (1111), each jackscrew is in threaded connection with each threaded hole (1111) and is in top-tight cooperation with the filter cylinder (120) to fix the filter cylinder (120).

4. The filter device of claim 3, wherein, The number of the fixing hole groups (111) is at least one, and each fixing hole group (111) is arranged along the axis of the collecting cylinder (110).

5. The filter device of claim 1, wherein, The driving assembly (200) comprises a driving member (210) and a rotating platform (220) in driving connection with the driving member (210), and the collecting cylinder (110) is installed on the rotating platform (220).

6. The filter device of claim 5, wherein, The number of the filter assemblies (100) is at least one, each filter assembly (100) is arranged along the rotation axis of the rotating platform (220) and is installed on the rotating platform (220).

7. The filter device of claim 6, wherein, The filter device (10) further comprises a fixing support (310) installed on the rotating platform (220), and the collecting cylinder (110) in each filter assembly (100) is detachably installed on the fixing support (310).

8. The filter device of claim 5, wherein, The driving assembly (200) further comprises a transmission rod (230), the bottom end of the transmission rod (230) is in driving connection with the driving member (210), the top end of the transmission rod (230) is fixedly connected with the rotating platform (220), the filter device (10) further comprises a partition plate (320) coaxially arranged on the rotating platform (220), the partition plate (320) is sleeved on the outer side wall of the transmission rod (230) and is fixedly connected with the transmission rod (230), and the outer diameter of the partition plate (320) is larger than that of the rotating platform (220).

9. The filter device according to any one of claims 1 to 8, characterized in that The top of the collecting cylinder (110) is provided with a first cylinder opening (112), the top of the filtering cylinder (120) is provided with a second cylinder opening (121), and the filtering assembly (100) further comprises a transparent cover which covers the first cylinder opening (112) and the second cylinder opening (121) to seal the first cylinder opening (112) and the second cylinder opening (121).

10. The filter device according to any one of claims 1 to 8, characterized in that The filtering device (10) further comprises a machine cover (410) and a machine box (420) with an opening at the top, and the driving assembly (200) and the filtering assembly (100) are both installed in the machine box (420), and the machine cover (410) covers the opening to seal the opening.

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