Dust removal device for battery roll core

Abstract

The utility model provides a dust removal device for a battery roll core. The vortex blowing block is arranged on the base, a central through hole is formed in the vortex blowing block, one end of the central through hole is sealed through a battery roll core, the other end of the central through hole is communicated with air suction equipment, a vortex hole is formed in the inner wall of the central through hole, and the vortex blowing block is arranged in the vortex hole. The vortex air blowing block is provided with a vortex hole facing a battery roll core located on the central through hole, the vortex air blowing block is further provided with an air inlet hole, and the air inlet hole is used for communicating the vortex hole with air blowing equipment. According to the dust removal device for the battery roll core, air is blown to the battery roll core through the vortex holes, air is sucked to the battery roll core through the central through hole, and therefore dual cleaning can be conducted on the battery roll core, and the cleaning efficiency is improved.

Description

Technical Field

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

[0002] In the battery manufacturing process, the battery core is a crucial component. Current technologies employ various processes for the current collector in cylindrical batteries, ranging from early ultrasonic welding to aluminum and copper foil, to more recent laser welding to attach the current collector to both ends of the battery core. This welding method involves flattening the copper and aluminum foil at both ends of the core. After flattening, the core surface contains metal powder generated during this process, which negatively impacts battery performance. Most equipment manufacturers simply use a vacuum cleaner to remove this dust during the flattening process, but this method has limited effectiveness. Utility Model Content

[0003] This invention provides a battery core dust removal device to solve the problem that metal powder generated after the battery core is flattened in the prior art is difficult to remove.

[0004] This utility model provides a battery core dust removal device, comprising:

[0005] Base;

[0006] A vortex blowing block is provided on the base. The vortex blowing block has a central through hole. One end of the central through hole is closed by a battery core, and the other end of the central through hole is connected to an air intake device. A vortex hole is provided on the inner wall of the central through hole, and the vortex hole is opened towards the battery core located on the central through hole. The vortex blowing block also has an air inlet hole, which is used to connect the vortex hole to the blowing device.

[0007] According to the present invention, a battery core dust removal device is provided, wherein the vortex blowing block includes a plurality of vortex holes, and the cross-sectional area of ​​a single vortex hole is smaller than the cross-sectional area of ​​the central through hole.

[0008] According to the present invention, a battery core dust removal device is provided, wherein a plurality of vortex holes are arranged in an annular and inclined manner along the inner wall of the vortex blowing block to form a vortex airflow.

[0009] According to the present invention, a battery core dust removal device is provided, the battery core dust removal device further includes a core fixing seat, the core fixing seat is disposed on one end of the vortex blowing block with the central through hole and is sealed to the vortex blowing block, the core fixing seat has an inner cavity communicating with the central through hole, the inner cavity is used to place the battery core.

[0010] According to the present invention, a battery core dust removal device is provided, wherein the core fixing seat further includes a limiting protrusion, the limiting protrusion is disposed at one end of the inner cavity near the central through hole, and the projection of the limiting protrusion is within the projection range of the battery core along the direction in which the battery core is inserted into the inner cavity.

[0011] According to the present invention, a battery core dust removal device further includes a center hole plug, which is fixedly disposed in the center through hole and abuts against the center hole of the battery core on the vortex blowing block.

[0012] According to the present invention, a battery core dust removal device further includes a fixing plate, which is fixedly disposed in the central through hole, and the central hole plug is connected to the fixing plate.

[0013] According to the present invention, a battery core dust removal device is provided, wherein the fixing plate is provided with a guide hole, the center hole plug is inserted into the guide hole, and the fixing plate and the center hole plug are slidably connected relative to each other.

[0014] According to the present invention, a battery core dust removal device further includes an elastic element, one end of which is connected to the fixed plate and the other end of which is connected to the center hole plug. The elastic element is used to drive the center hole plug to slide along the guide hole.

[0015] According to the present invention, a battery core dust removal device further includes a limiting member, which is connected to the end of the central hole plug away from the battery core and passing through the guide hole. The limiting member is used to prevent the central hole plug from sliding out of the guide hole.

[0016] This utility model provides a battery core dust removal device, which includes a vortex blowing block with vortex holes and a central through hole. The battery core is placed on the vortex blowing block, and one end of the central through hole is sealed by the battery core. Because the vortex holes are connected to the blowing device through an air inlet, high-pressure gas can be ejected through the vortex holes to clean the battery core. Simultaneously, the other end of the central through hole is connected to a suction device, which generates negative pressure to further clean the battery core. This utility model uses a combination of suction and blowing to perform secondary cleaning of the battery core, thereby improving cleanliness. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a front view of the battery core dust removal device provided by this utility model.

[0019] Figure 2 yes Figure 1 Sectional view at point AA.

[0020] Figure 3 yes Figure 2 Enlarged view of point B in the middle.

[0021] Figure 4 This is a schematic diagram of the structure of the vortex blowing block provided by this utility model.

[0022] Figure 5 This is a structural schematic diagram of the core fixing seat provided by this utility model.

[0023] Figure label:

[0024] 1. Base;

[0025] 2. Vortex blowing block; 21. Central through hole; 22. Vortex hole; 23. Air inlet hole;

[0026] 3. Core fixing seat; 31. Inner cavity; 32. Limiting protrusion;

[0027] 4. Center plug;

[0028] 5. Fixing plate; 51. Guide hole;

[0029] 6. Elastic components;

[0030] 7. Limiting components;

[0031] 8. Exhaust pipe;

[0032] 9. Battery winding core;

[0033] 10. Control components. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] The following is combined with Figure 1 This invention describes a battery core dust removal device, comprising a base 1 and a vortex blowing block 2. The vortex blowing block 2 is disposed on the base 1 and has a central through hole 21. One end of the central through hole 21 is closed by a battery core 9, and the other end of the central through hole 21 is connected to an air suction device. The inner wall of the central through hole 21 has vortex holes 22, which are opened toward the battery core 9 located on the central through hole 21. The vortex blowing block 2 also has an air inlet 23, which is used to connect the vortex holes 22 to the blowing device.

[0036] Please refer to the above as well. Figure 1 and Figure 2 The base 1 has a flat surface, which ensures that the vortex air block 2 remains stable after being placed on the base 1. The vortex air block 2 is placed on the base 1, and then the battery core 9 is placed on the vortex air block 2 to clean the battery core 9.

[0037] In this embodiment, the vortex blowing block 2 is cylindrical, and the central through hole 21 is opened along the axial direction of the vortex blowing block 2, and the central through hole 21 is coaxial with the vortex blowing block 2. The vortex blowing block 2 with one end face of the central through hole 21 is arranged upwards on the base 1, and the other end face of the vortex blowing block 2 with the central through hole 21 is downwards and fits against the base 1. Understandably, because the central through hole 21 of the vortex blowing block 2 needs to communicate with the suction device, a hollowed-out portion is made on the base 1 at the position corresponding to the central through hole 21, and then the central through hole 21 is connected to the suction device through the hollowed-out portion on the base 1. In this embodiment, an exhaust pipe 8 is provided below the base 1, and the exhaust pipe 8 passes through the hollowed-out portion on the base 1, so that the exhaust pipe 8 communicates with the central through hole 21 of the vortex blowing block 2.

[0038] Meanwhile, a vortex hole 22 is formed on the inner wall of the central through hole 21. Because the battery core 9 is placed above the central through hole 21, the vortex hole 22 is oriented upwards to align with the battery core 9. Since the vortex hole 22 is connected to the air inlet 23, which is connected to the air blowing device, the gas blown by the air blowing device is ejected through the vortex hole 22. Because the vortex hole 22 is aligned with the battery core 9, the gas ejected from the vortex hole 22 travels with initial velocity towards the bottom of the battery core 9, effectively blowing away metal powder from the bottom of the battery core 9 and cleaning it. Furthermore, because the vortex hole 22 is located on the inner wall of the central through hole 21, the gas ejected from the vortex hole 22 is blocked by the battery core 9 and moves downwards before being discharged from below the central through hole 21.

[0039] In this embodiment, the central through hole 21 not only serves to vent air, but also has an air intake device connected to the end of the central through hole 21 furthest from the battery core 9. In this embodiment, an exhaust pipe 8 is connected to the lower end of the central through hole 21, connecting the central through hole 21 to the air intake device. Because the air intake device can generate negative pressure for suction, it can remove metal powder from the bottom of the battery core 9 using this negative pressure.

[0040] Furthermore, in this embodiment, the suction device and the blowing device can be activated simultaneously or separately. When the suction device and the blowing device are activated simultaneously, the magnitude of the negative pressure provided in the suction device needs to be adjusted. If the negative pressure is too high, the positive pressure gas ejected from the vortex orifice 22 may be sucked away by the negative pressure before it even reaches the bottom of the battery core 9, thus reducing the cleaning effect. Therefore, the negative pressure needs to be much lower than the positive pressure provided by the blowing device to avoid the negative pressure affecting the direction of the positive pressure gas ejection. In this case, the negative pressure primarily serves a guiding function and increases the speed of positive pressure gas discharge. When the suction device and the blowing device are activated separately, the activation sequence of the suction device and the blowing device can be adjusted according to actual needs.

[0041] In this embodiment, the vortex hole 22 and the central through hole 21 enable secondary cleaning of the battery core 9, thereby improving the cleaning effect.

[0042] In one embodiment, the vortex blowing block 2 includes a plurality of vortex holes 22, the cross-sectional area of ​​a single vortex hole 22 being smaller than the cross-sectional area of ​​the central through hole 21. In another embodiment, the plurality of vortex holes 22 are arranged annularly and obliquely along the inner wall of the vortex blowing block 2 to form a vortex airflow.

[0043] like Figure 4As shown, the inner ring of the vortex blowing block 2 is provided with multiple vortex holes 22, and the surface of the vortex blowing block 2 with the vortex holes 22 is designed as an arc surface. That is, along the axial direction of the vortex blowing block 2, in the direction towards the battery core 9, the diameter of the inner ring arc surface of the vortex blowing block 2 gradually increases, thereby increasing the number of vortex holes 22 that can be opened in each ring. Furthermore, in this embodiment, the cross-sectional area of ​​a single vortex hole 22 is much smaller than the cross-sectional area of ​​the central through hole 21.

[0044] like Figure 4 As shown, each vortex hole 22 is a tiny micropore. Under the same conditions, the smaller the cross-sectional area of ​​the vortex hole 22, the greater the velocity of the positive pressure gas ejected from the vortex hole 22. The greater the velocity of the positive pressure gas, the stronger the impact on the bottom surface of the battery core 9, thus producing a better cleaning effect.

[0045] Furthermore, multiple vortex holes 22 are arranged in a ring along the inner wall of the vortex blowing block 2, so that each area at the bottom of the battery core 9 is aligned with the vortex holes 22 for air jetting, thereby enabling more comprehensive cleaning of the bottom of the battery core 9 and avoiding uncleanliness caused by omissions in some areas.

[0046] Furthermore, in this embodiment, multiple annularly arranged vortex holes 22 are arranged in the direction of spiral airflow. That is, after the vortex holes 22 are arranged annularly, they also need to be arranged at an angle in the spiral direction. Therefore, the positive pressure gas blown out by the air blowing device will not fly directly towards the bottom of the battery core 9 after exiting the vortex holes 22, but will spiral upward to generate vortices. The spiral upward formation of vortices by the positive pressure gas improves the cleaning effect on the bottom of the battery core 9.

[0047] In one embodiment, the battery core dust removal device further includes a core fixing seat 3. The core fixing seat 3 is disposed at one end of the vortex blowing block 2, which has a central through hole 21, and is sealed to the vortex blowing block 2. The core fixing seat 3 has an inner cavity 31 communicating with the central through hole 21, and the inner cavity 31 is used to place the battery core 9. In one embodiment, the core fixing seat 3 further includes a limiting protrusion 32. The limiting protrusion 32 is disposed at one end of the inner cavity 31 near the central through hole 21. Along the direction in which the battery core 9 is inserted into the inner cavity 31, the orthographic projection of the limiting protrusion 32 is within the projection range of the battery core 9.

[0048] Please refer to the above as well. Figures 1 to 5In this embodiment, a core fixing seat 3 is provided above the vortex blowing block 2, through which the battery core 9 is installed. The core fixing seat 3 includes a cylindrical body and a disc-shaped extension. The cylindrical body has an inner cavity 31, through which the battery core 9 is placed, and the diameter of the cylindrical body corresponds to the diameter of the battery core 9. Because the diameter of the vortex blowing block 2 is larger than the diameter of the battery core 9, the cylindrical body cannot provide a good seal for the vortex blowing block 2. Therefore, a disc-shaped extension is provided at the bottom of the body, that is, on the side of the body close to the vortex blowing block 2, through which the vortex blowing block 2 is sealed. Furthermore, the contact between the extension and the vortex blowing block 2 also provides a larger contact area, making the core fixing seat 3 more stable after being placed on the vortex blowing block 2.

[0049] Because the core holder 3 holds the battery core 9 through the inner cavity 31, and the vortex air block 2 cleans the battery core 9 by blowing or sucking air through the central through hole 21, the inner cavity 31 needs to be connected to the central through hole 21. Preferably, the diameter of the battery core 9 corresponds to the diameter of the inner cavity 31, so that the battery core 9 is precisely inserted into the inner cavity 31, thereby sealing the inner cavity 31 and preventing air leakage due to gaps in the inner cavity 31, which would affect the cleaning efficiency. At the same time, because the battery core 9 is positioned by being inserted into the inner cavity 31, when the battery core 9 is subjected to positive or negative pressure gas, the core holder 3 can also provide an opposite force to maintain the stability of the battery core 9.

[0050] like Figure 5 As shown, in this embodiment, three limiting protrusions 32 are provided at the bottom of the inner cavity 31, and the three limiting protrusions 32 are arranged in a ring. However, this is not the only limitation; the number of limiting protrusions 32 can be adjusted in different embodiments. Because the battery coil 9 needs to be inserted into the inner cavity 31, and the inner cavity 31 is connected to the central through hole 21, the battery coil 9 may slide into the central through hole 21 after being inserted into the inner cavity 31, thereby damaging the battery coil 9. Furthermore, it is not convenient to remove the battery coil 9 after it slides in. Therefore, in this embodiment, the limiting protrusions 32 are used to hold the battery coil 9 in place, thereby preventing the battery coil 9 from sliding into the central through hole 21. By setting the limiting protrusions 32 at the bottom of the inner cavity 31, so that the limiting protrusions 32 are closer to the central through hole 21, the battery coil 9 can be brought closer to the central through hole 21, thereby improving the cleaning effect.

[0051] In this embodiment, the limiting protrusion 32 is provided to position the battery core 9. However, it is not limited to this. In different embodiments, the battery core 9 can also be limited by an interference fit between the battery core 9 and the inner cavity 31. These will not be described in detail here.

[0052] In one embodiment, the battery core dust removal device further includes a center hole plug 4, which is fixedly disposed within the center through hole 21 and abuts against the center hole of the battery core 9 on the vortex blowing block 2. In another embodiment, the battery core dust removal device further includes a fixing plate 5, which is fixedly disposed within the center through hole 21, and the center hole plug 4 is connected to the fixing plate 5.

[0053] Please refer to the above as well. Figures 1 to 3 Because the battery core 9 has a through hole in its center, when the vortex air block 2 cleans the battery core 9 with gas, the gas may be ejected from the through hole, affecting the quality of the battery core 9 and potentially damaging it. Therefore, in this embodiment, a center hole plug 4 is provided in the center through hole 21. After the battery core 9 is placed on the vortex air block 2, the center hole of the battery core 9 abuts against the center hole plug 4, sealing the battery core 9 and protecting it from the gas.

[0054] Because the vortex air-blowing block 2 is located on the base 1, and the corresponding position on the base 1 is hollowed out, the center hole plug 4 can be fixedly connected to the hollowed-out position on the base 1. In this embodiment, it is connected to the base 1 by a fixing plate 5, which is also hollowed out. Because the fixing plate 5 is located at the position where the center through hole 21 connects to the exhaust pipe 8, the hollowed-out design of the fixing plate 5 can prevent the fixing plate 5 from blocking the center through hole 21 and prevent the exhaust of the center through hole 21 from being affected. After the fixing plate 5 is installed at the bottom of the base 1, the center part of the fixing plate 5 is retained, and the center part of the fixing plate 5 is aligned with the center hole of the battery core 9. Then, after the center hole plug 4 is installed in the center part of the fixing plate 5, the center hole plug 4 can be aligned with the center hole of the battery core 9. Then, the length of the center hole plug 4 is adjusted so that the length of the center hole plug 4 is equal to the vertical distance from the fixing plate 5 to the bottom of the battery core 9, so that after the battery core 9 is installed, the center hole plug 4 just touches the center hole of the battery core 9, thereby achieving a seal.

[0055] In this embodiment, a center hole plug 4 is provided inside the center through hole 21 to seal the center hole of the battery core 9. In different embodiments, other sealing materials can be used to seal the center hole of the battery core 9 before it is placed on the vortex blowing block 2, which can also prevent gas from flowing into the center hole of the battery core 9. Other methods will not be described in detail here.

[0056] In one embodiment, the fixing plate 5 is provided with a guide hole 51, and the center hole plug 4 is inserted into the guide hole 51. The fixing plate 5 and the center hole plug 4 are slidably connected to each other.

[0057] Because the bottom surface of the battery core 9 is not necessarily flat, the height of the center hole on the bottom surface of the battery core 9 will change with the change in the bottom surface. Correspondingly, the height of the center hole plug 4 also needs to change with the change in the height of the center hole on the bottom surface of the battery core 9. Therefore, in this embodiment, the fixing plate 5 and the center hole plug 4 are slidably connected. A guide hole 51 is provided at the center of the fixing plate 5, and the center hole plug 4 passes through the guide hole 51, so that the center hole plug 4 can slide along the guide hole 51, thereby adjusting the height of the center hole plug 4. Furthermore, because the center hole plug 4 slides along the guide hole 51, the sliding of the center hole plug 4 can be kept stable through the guide hole 51.

[0058] In one embodiment, the battery core dust removal device further includes an elastic element 6, one end of which is connected to the fixed plate 5, and the other end of which is connected to the center hole plug 4. The elastic element 6 is used to drive the center hole plug 4 to slide along the guide hole 51.

[0059] like Figure 3 As shown, in this embodiment, an elastic element 6 is provided on the fixing plate 5. The elastic element 6 is arranged along the axis of the battery core 9. The elastic element 6 is a spring, so it can provide a driving force along the axial direction of the battery core 9. Because the fixing plate 5 is fixedly connected to the base 1, the elastic element 6 provides support through the fixing plate 5. The other end of the elastic element 6 is connected to the top end of the center hole plug 4, so that the elastic element 6 can drive the top end of the center hole plug 4 to move.

[0060] In the initial state of the elastic element 6, the elastic element 6 drives the center hole plug 4 to move above the limiting protrusion 32. After the battery core 9 is inserted downward into the inner cavity 31, the battery core 9 slides to the position abutting against the limiting protrusion 32. Before the battery core 9 abuts against the limiting protrusion 32, the battery core 9 first abuts against the center hole plug 4, thereby driving the center hole plug 4 to move downward until the battery core 9 abuts against the limiting protrusion 32. At this time, because the elastic element 6 is driven downward by the center hole plug 4, the elastic element 6 is pressed down by the battery core 9, so the elastic element 6 generates an upward pushing force, thereby driving the center hole plug 4 to press against the battery core 9, thus sealing the center hole of the battery core 9.

[0061] In one embodiment, the battery core dust removal device further includes a limiting member 7, which is connected to the end of the center hole plug 4 away from the battery core 9 and passing through the guide hole 51. The limiting member 7 is used to prevent the center hole plug 4 from sliding out of the guide hole 51.

[0062] like Figure 3As shown, because the center hole plug 4 passes through the guide hole 51, a limiting member 7 is fixedly connected to the lower end of the center hole plug 4. When the center hole plug 4 slides upward along the guide hole 51, the limiting member 7 will abut against the guide hole 51. The limiting member 7 cannot pass through the guide hole 51, so when the center hole plug 4 slides to the position where the limiting member 7 abuts against the guide hole 51, the center hole plug 4 cannot continue to slide, thus preventing the center hole plug 4 from sliding out of the guide hole 51.

[0063] like Figure 1 As shown, a control component 10 is also provided on the base 1. The control component 10 includes a start button and a stop indicator light. The start button is electrically connected to the suction device and the blowing device, and is used to control the start of the suction device and the blowing device. The start button is then connected to a time relay, which controls the suction device and the blowing device to stop working after a specified time. The stop indicator light is electrically connected to the time relay. When the time relay controls the suction device and the blowing device to stop working, the stop indicator light illuminates to indicate that the suction device and the blowing device have stopped working.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery core dust removal device, characterized in that, include: Base (1); A vortex blowing block (2) is provided on the base (1). The vortex blowing block (2) has a central through hole (21). One end of the central through hole (21) is closed by a battery core (9). The other end of the central through hole (21) is connected to the air intake device. A vortex hole (22) is provided on the inner wall of the central through hole (21). The vortex hole (22) is opened towards the battery core (9) located on the central through hole (21). The vortex blowing block (2) also has an air inlet (23). The air inlet (23) is used to connect the vortex hole (22) to the blowing device.

2. The battery core dust removal device according to claim 1, characterized in that, The vortex blowing block (2) includes a plurality of vortex holes (22), and the cross-sectional area of ​​a single vortex hole (22) is smaller than the cross-sectional area of ​​the central through hole (21).

3. The battery core dust removal device according to claim 2, characterized in that, Multiple vortex holes (22) are arranged in a ring and at an angle along the inner wall of the vortex blowing block (2) to form a vortex airflow.

4. The battery core dust removal device according to claim 1, characterized in that, The battery core dust removal device also includes a core fixing seat (3). The core fixing seat (3) is located on one end of the vortex blowing block (2) with the central through hole (21) and is sealed to the vortex blowing block (2). The core fixing seat (3) has an inner cavity (31) that communicates with the central through hole (21). The inner cavity (31) is used to place the battery core (9).

5. The battery core dust removal device according to claim 4, characterized in that, The core fixing seat (3) also includes a limiting protrusion (32), which is located in the inner cavity (31) near the central through hole (21) and along the direction in which the battery core (9) is inserted into the inner cavity (31). The orthographic projection of the limiting protrusion (32) is within the projection range of the battery core (9).

6. The battery core dust removal device according to claim 1, characterized in that, The battery core dust removal device also includes a center hole plug (4), which is fixedly installed in the center through hole (21) and abuts against the center hole of the battery core (9) on the vortex blowing block (2).

7. The battery core dust removal device according to claim 6, characterized in that, The battery core dust removal device also includes a fixing plate (5), which is fixedly installed in the central through hole (21), and the central hole plug (4) is connected to the fixing plate (5).

8. The battery core dust removal device according to claim 7, characterized in that, The fixing plate (5) is provided with a guide hole (51), and the center hole plug (4) is inserted into the guide hole (51). The fixing plate (5) and the center hole plug (4) are slidably connected to each other.

9. The battery core dust removal device according to claim 8, characterized in that, The battery core dust removal device also includes an elastic element (6), one end of which is connected to the fixed plate (5), and the other end of which is connected to the center hole plug (4). The elastic element (6) is used to drive the center hole plug (4) to slide along the guide hole (51).

10. The battery core dust removal device according to claim 8, characterized in that, The battery core dust removal device also includes a limiting member (7), which is connected to the end of the center hole plug (4) away from the battery core (9). The limiting member (7) is used to prevent the center hole plug (4) from sliding out of the guide hole (51).

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