Battery cell flaring and liquid injection device
By designing the working plate, flaring mechanism, and liquid injection mechanism of the cell flaring and liquid injection device, and utilizing pre-flaring components and suction cup technology, the problem of difficult liquid injection port alignment caused by the elastic reset of the cell and battery bag was solved, achieving stable cell flaring and precise liquid injection, reducing the risk of leakage and equipment contamination.
Patent Information
- Application Number
- CN202423265697.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-30
Smart Images
Figure CN223828689U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lithium battery production especially relates to a battery cell flaring and liquid injection device. BACKGROUND
[0002] In the production process of lithium battery, after the battery cell is accommodated into the aluminum plastic film, it needs to go through the process of injecting electrolyte, and the liquid injection is a crucial process in the production process of lithium battery, and the quality and service life of lithium battery are directly affected by the liquid injection process.
[0003] The existing flaring and liquid injection device flares the battery cell bag first, and the battery cell bag will have a certain degree of elastic reset, so that the liquid injection port can not be accurately aligned with the opening of the battery cell bag when the battery cell is moved to the liquid injection process part, thereby affecting the liquid injection efficiency, and the liquid leakage is easy to occur, which causes the waste of electrolyte, and the splashing of the leaked electrolyte to the equipment everywhere, which is easy to affect the equipment and the on-site environment, and needs to be solved urgently. UTILITY MODEL CONTENTS
[0004] In view of the above deficiencies in the prior art, the present application provides a battery cell flaring and liquid injection device.
[0005] The above invention purpose of the present application is realized by the following technical scheme:
[0006] A workbench is provided with a plurality of work station seats for vertically placing battery cells;
[0007] A flaring mechanism is provided with a first pre-expansion component, which is used for pre-expanding the battery cell bag when the battery cell is located in the work station seat, and the flaring mechanism is used for flaring the battery cell bag;
[0008] A liquid injection mechanism is provided with a second pre-expansion component, which is used for grabbing the opposite sides of the battery cell bag to maintain the opening state of the battery cell bag when the battery cell is located in the work station seat, and the liquid injection mechanism is used for delivering electrolyte into the battery cell bag;
[0009] A conveying mechanism is connected to the workbench, and the conveying mechanism is used for conveying the workbench to the flaring mechanism and the liquid injection mechanism in sequence.
[0010] By adopting the technical scheme, the battery cell is vertically placed on the work station to ensure stability and positioning accuracy during processing, and under the action of the conveying mechanism, the battery cell can enter the flaring mechanism and the liquid injection mechanism in sequence to complete flaring and liquid injection processes in sequence. In the flaring mechanism, under the action of the first pre-expanding assembly, the battery bag of the battery cell can be pre-flared to preliminarily prepare for formal flaring operation of the flaring mechanism to play a guiding role and reduce the elastic resetting phenomenon of the battery bag after formal flaring. After flaring, the battery cell is conveyed to the liquid injection mechanism. In the liquid injection mechanism, the second pre-expanding assembly keeps the battery bag of the battery cell in an open state by grabbing opposite sides of the battery bag to avoid the opening of the battery bag being reduced due to elastic resetting. At the same time, the liquid injection mechanism conveys electrolyte into the battery bag of the battery cell to complete an accurate and efficient liquid injection process and reduce the risk of liquid leakage.
[0011] In a preferred example, the first pre-expanding assembly and the second pre-expanding assembly each include two opposite mounting seats and a first driving assembly. The two mounting seats are each horizontally slidingly arranged in the flaring mechanism or the liquid injection mechanism. Each mounting seat is horizontally provided with a suction cup that is connected to an external air pump. When the battery cell is located between the two mounting seats, the two suction cups are used to abut opposite sides of the battery bag of the battery cell. The first driving assembly is used to drive the two opposite mounting seats to move towards or away from each other.
[0012] By adopting the above technical scheme, when the battery cell is vertically placed on the work station and moved to the flaring mechanism, the first driving assembly is started to drive the two opposite mounting seats to move towards each other so that the suction cups located on the two mounting seats move close to the opposite sides of the battery bag of the battery cell until abutting. Then, the external air pump is started to make the suction cups continuously adsorb the battery bag. Then, the first driving assembly is started to drive the two mounting seats to move away from each other. The battery bag is opened under the pulling of the two suction cups to realize the pre-expanding operation of the first pre-expanding assembly on the battery bag. Then, the flaring mechanism completes the formal flaring of the battery bag. When the battery cell is moved to the liquid injection mechanism, the first driving assembly is started to drive the two opposite mounting seats to move towards each other so that the suction cups located on the two mounting seats move close to the opposite sides of the battery bag of the battery cell until abutting. Then, the external air pump is started to make the suction cups continuously adsorb the battery bag to keep the flared state of the battery bag unchanged. This can avoid the situation that the opening of the battery bag is reduced due to elastic resetting during the liquid injection process, thereby avoiding liquid leakage.
[0013] In a preferred example, the flaring mechanism and the liquid injection mechanism are each vertically slidingly connected with a lifting plate. The two mounting seats are each mounted below the lifting plate. The flaring mechanism and the liquid injection mechanism are each vertically mounted with a first air cylinder. The piston rod of the first air cylinder is fixedly connected to the lifting plate.
[0014] By adopting the above technical solution and setting up a lifting plate, an installation position can be provided for the mounting base. At the same time, the height of the lifting plate can be adjusted by activating the first cylinder, thereby driving the mounting base to move vertically and adjusting the height of the suction cup to make way for the loading of the battery cell. In addition, during the pre-expansion process, the suction cup can be controlled to move in a dual-axis manner in conjunction with the first drive component to get closer to both sides of the battery bag of the battery cell.
[0015] In a preferred embodiment, the present application may be further configured as follows: the first drive component includes a connector, the connector having two symmetrically and inclined strip-shaped sliding holes, each end of the two mounting seats having a slider, the two sliders being slidably engaged in the two strip-shaped sliding holes, and a first electric cylinder being vertically mounted on the connector, the piston rod of the first electric cylinder being fixedly connected to the connector.
[0016] By adopting the above technical solution, when the first drive assembly is working, the first electric cylinder drives the piston rod to move the connecting piece vertically, so that the connecting piece abuts against and drives the slider in its strip sliding hole to slide. Since the two strip sliding holes are symmetrical and inclined, the two sliders move closer or further away from each other along the length direction of the corresponding strip sliding holes. Furthermore, both mounting seats are horizontally sliding, so that the two mounting seats can move closer or further away from each other in the horizontal direction, thereby realizing the function of the two mounting seats and the suction cups on both sides moving towards or away from each other.
[0017] In a preferred embodiment, the present application may be further configured such that: the flaring mechanism includes a flaring base and a flaring component, the flaring component is vertically slidably disposed on the flaring base, the size of the flaring component gradually increases from bottom to top, and a second electric cylinder is vertically fixedly mounted on the flaring base, the second electric cylinder being used to drive the flaring component to slide vertically.
[0018] By adopting the above technical solution, after the battery bag completes the pre-expansion process, the flaring component moves vertically under the action of the second electric cylinder until it enters the battery bag to complete the flaring process. Furthermore, since the size of the flaring component gradually increases from bottom to top, it is easier for the flaring component to enter the interior of the battery bag and the possibility of damaging the battery bag can be reduced.
[0019] In a preferred embodiment, the present application may be further configured such that: the injection mechanism includes an injection base, an injection component, a storage tank, a first liquid pump, and a third electric cylinder; the injection component is vertically slidably disposed on the injection base; the third electric cylinder is vertically mounted on the injection base and is used to drive the injection component to move vertically; the storage tank contains electrolyte; the storage tank and the first liquid pump are both disposed on one side of the injection base; one end of the first liquid pump is connected to the injection component through a delivery pipe, and the other end is connected to the storage tank through a delivery pipe.
[0020] By adopting the above technical solution, when the battery cell moves to the liquid injection mechanism through the conveying mechanism, the liquid injection component moves vertically under the action of the third electric cylinder until it enters the battery bag. Then, the first liquid pump is started to pump the electrolyte in the storage tank to the liquid injection component through the liquid delivery pipe, thereby entering the battery cell bag and completing the liquid injection.
[0021] In a preferred embodiment, the present application may be further configured such that the injection mechanism further includes a buffer replenishment tank and a second liquid pump, the buffer replenishment tank being disposed directly above the storage tank, the second liquid pump being connected to the buffer replenishment tank and used to deliver electrolyte from the outside to the buffer replenishment tank, and the buffer replenishment tank being connected to the storage tank directly below it via a delivery pipe.
[0022] By adopting the above technical solution, the second liquid pump can pump electrolyte from the outside to the buffer replenishment tank to complete the replenishment of electrolyte. Under the action of gravity, the electrolyte inside the buffer replenishment tank gradually flows from the buffer replenishment tank into the storage tank through the delivery pipe, so as to temporarily store the electrolyte and balance the pressure fluctuation during the electrolyte delivery process to a certain extent, thereby improving the stability and reliability of the injection mechanism.
[0023] In a preferred embodiment, the present application may be further configured such that: the injection mechanism further includes a plurality of collection boxes with top openings and a movable plate, the collection boxes corresponding one-to-one with the injection components and installed on the movable plate, the movable plate being slidably disposed on the injection base, and there are collection positions on the sliding path of the collection boxes. When the collection box is located at the collection position, the collection box is located directly below the injection component, and the injection base is provided with a second cylinder for driving the collection boxes to slide.
[0024] By adopting the above technical solution, after the electrolyte injection process is completed, the third electric cylinder drives the electrolyte injection component to move vertically upward away from the battery cell to make way for the moving plate and the collection box. During the vertical movement, the leaked electrolyte will drip into the battery cell without leaking out. After making way, the second cylinder drives the moving plate to move the collection box to the collection position, and the leaked electrolyte drips into the collection box for collection. This can avoid the waste of electrolyte and reduce the possibility of electrolyte splashing onto the site.
[0025] In a preferred embodiment, the present application may be further configured such that the size of the injection element gradually increases from bottom to top.
[0026] By adopting the above technical solution, it is easier for the liquid injection component to enter the battery bag of the battery cell, and the possibility of damaging the battery bag is reduced.
[0027] In summary, this application includes at least one of the following beneficial technical effects:
[0028] 1. Under the action of the conveying mechanism, the battery cell can enter the flaring mechanism and the liquid injection mechanism in sequence to complete the flaring and liquid injection processes. In the flaring mechanism, under the action of the first pre-flaring component, the battery cell bag can be pre-flared, which prepares the battery cell bag for the formal flaring operation of the subsequent flaring mechanism and plays a guiding role, and reduces the elastic reset phenomenon of the battery bag after formal flaring. After the flaring is completed, the battery cell is conveyed to the liquid injection mechanism. In the liquid injection mechanism, the second pre-flaring component holds the battery cell bag open by grasping the opposite sides of the battery cell bag, so as to prevent the battery cell bag from shrinking due to elastic reset. At the same time, the liquid injection mechanism delivers electrolyte into the battery cell bag to complete the precise and efficient liquid injection process and reduce the risk of leakage.
[0029] 2. By activating the first drive assembly, two opposing mounting seats move towards each other, causing the suction cups on the two mounting seats to move close to the opposite sides of the battery cell pouch until they come into contact. Then, with the help of an external air pump, the suction cups generate a continuous suction force on the battery pouch. The first drive assembly then drives the two mounting seats to move away from each other, and the battery pouch opens under the pull of the suction cups on both sides, realizing the pre-expansion operation of the battery pouch by the first pre-expansion assembly. Then, the flaring mechanism completes the formal flaring of the battery pouch. When the battery cell moves to the liquid injection mechanism, the first drive assembly is activated to drive the two opposing mounting seats towards each other, causing the suction cups on the two mounting seats to move close to the opposite sides of the battery cell pouch until they come into contact. Then, with the help of an external air pump, the suction cups generate a continuous suction force on the battery pouch, ensuring that the battery cell pouch remains in the flared state at all times. This avoids leakage caused by the opening narrowing due to the elastic reset of the battery pouch during the liquid injection process.
[0030] 3. After the electrolyte injection process is completed, the third electric cylinder drives the electrolyte injection component to move vertically upward away from the battery cell to make way for the moving plate and the collection box. During the vertical movement, the leaked electrolyte will drip into the battery cell without leaking out. After making way, the second cylinder drives the moving plate to move the collection box to the collection position. The leaked electrolyte drips into the collection box for collection, thereby avoiding the waste of electrolyte and reducing the possibility of electrolyte splashing onto the site. Attached Figure Description
[0031] Figure 1 This is a partial structural schematic diagram of the cell flaring and liquid injection device in one embodiment of this application;
[0032] Figure 2 This is a schematic diagram of the flaring mechanism in one embodiment of this application;
[0033] Figure 3 This is another structural schematic diagram of the flaring mechanism in one embodiment of this application;
[0034] Figure 4 This is a schematic diagram of the liquid injection mechanism in one embodiment of this application.
[0035] Reference numerals: C1, working plate; C2, flaring mechanism; C21, flaring machine base; C22, flaring component; C23, second electric cylinder; C3, liquid injection mechanism; C31, liquid injection machine base; C32, liquid injection component; C33, liquid storage tank; C34, third electric cylinder; C35, buffer replenishment tank; C36, collection box; C37, moving plate; C38, second cylinder; C4, conveying mechanism; C5, workstation base; C6, first pre-expansion assembly; C61, mounting base; C62, first drive assembly; C63, connector; C64, strip-shaped sliding hole; C65, slider; C66, first electric cylinder; C67, suction cup; C7, second pre-expansion assembly; C8, lifting plate; C9, first cylinder. Detailed Implementation
[0036] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of this application, including various details to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.
[0037] It should be noted that the terms "first," "second," etc., used in this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with this disclosure.
[0038] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.
[0039] The following description, with reference to the accompanying drawings, describes a battery cell flaring and liquid injection device of this application.
[0040] Reference Figures 1 to 4 Among them, such as Figure 1As shown, the battery cell flaring and electrolyte injection device includes a working plate C1, a flaring mechanism C2, an electrolyte injection mechanism C3, and a conveying mechanism C4. The working plate C1 is equipped with several workstations C5 for vertically placing the battery cells. The flaring mechanism C2 is equipped with a first pre-flaring component C6. When the battery cell is located at the workstation C5, the first pre-flaring component C6 is used to pre-flare the battery cell pouch. The flaring mechanism C2 is used to flare the battery cell pouch. The electrolyte injection mechanism C3 is equipped with a second pre-flaring component C7. When the battery cell is located at the workstation C5, the second pre-flaring component C7 is used to grip the opposite sides of the battery cell pouch to maintain the open state of the battery cell pouch. The electrolyte injection mechanism C3 is used to deliver electrolyte into the battery cell pouch. The working plate C1 is connected to the conveying mechanism C4, which sequentially conveys the working plate C1 to the flaring mechanism C2 and the electrolyte injection mechanism C3. During operation, the battery cell is vertically placed at the workstations C1. On the mounting C5, to ensure the stability and positioning accuracy of the battery cell during processing, and under the action of the conveying mechanism C4, the battery cell can sequentially enter the flaring mechanism C2 and the liquid injection mechanism C3 to complete the flaring and liquid injection processes in sequence. In the flaring mechanism C2, under the action of the first pre-flaring component C6, the battery cell's battery bag can be pre-flared, which prepares for the subsequent formal flaring operation of the flaring mechanism C2 and plays a guiding role, and reduces the elastic reset phenomenon of the battery bag after formal flaring. After the flaring is completed, the battery cell is conveyed to the liquid injection mechanism C3. In the liquid injection mechanism C3, the second pre-flaring component C7 grasps the opposite sides of the battery cell's battery bag to keep the battery cell's battery bag in an open state, avoiding the opening from shrinking due to elastic reset of the battery bag. At the same time, the liquid injection mechanism C3 delivers electrolyte into the battery cell's battery bag to complete a precise and efficient liquid injection process and reduce the risk of leakage.
[0041] It should be noted that the conveying mechanism C4 can use conventional conveying equipment on the market, such as linear track modules, belt conveyor modules, etc. The working plate C1 is slidably installed on the conveying equipment to realize the movement and conveying of the working plate C1.
[0042] Among them, such as Figure 3 and Figure 4As shown, both the first pre-expansion component C6 and the second pre-expansion component C7 include two opposing mounting seats C61 and a first drive component C62. Both mounting seats C61 are horizontally slidably mounted on the flaring mechanism C2 or the liquid injection mechanism C3. Each mounting seat C61 is horizontally equipped with a suction cup C67, which is connected to an external air pump. When the battery cell is located between the two mounting seats C61, the two suction cups C67 are respectively used to abut against the opposite sides of the battery cell pouch. The first drive component C62 is used to drive the two opposing mounting seats C61 to move towards or away from each other. When the battery cell is vertically placed on the workstation C5 and moves to the flaring mechanism C2, the first drive component C62 is activated to drive the two opposing mounting seats C61 to move towards each other, causing the suction cups C67 located on the two mounting seats C61 to move closer to the opposite sides of the battery cell pouch until they abut. An external air pump is then used to generate a continuous suction force on the battery bag using suction cups C67. The first drive assembly C62 drives the two mounting seats C61 to move in opposite directions, and the battery bag opens under the pull of the suction cups C67 on both sides, realizing the pre-expansion operation of the battery bag by the first pre-expansion assembly C6. Then, the flaring mechanism C2 completes the formal flaring of the battery bag. When the battery cell moves to the liquid injection mechanism C3, the first drive assembly C62 is activated to drive the two opposing mounting seats C61 to move towards each other, so that the suction cups C67 located on the two mounting seats C61 move closer to the opposite sides of the battery cell bag until they come into contact. Then, the external air pump generates a continuous suction force on the battery bag using suction cups C67, so that the battery cell bag always remains in the flared state, which can avoid leakage caused by the opening shrinking due to the elastic reset of the battery bag during the liquid injection process.
[0043] In addition, such as Figure 2 and Figure 4 As shown, both the flaring mechanism C2 and the liquid injection mechanism C3 are vertically slidably connected to the lifting plate C8. Both mounting seats C61 are installed below the lifting plate C8. Both the flaring mechanism C2 and the liquid injection mechanism C3 are vertically mounted with the first cylinder C9. The piston rod of the first cylinder C9 is fixedly connected to the lifting plate C8. By setting the lifting plate C8, an installation position can be provided for the mounting seat C61. At the same time, the height of the lifting plate C8 can be adjusted by activating the first cylinder C9, thereby driving the mounting seat C61 to move vertically, and thus adjusting the height of the suction cup C67 to make room for the battery cell loading. During the pre-expansion process, in conjunction with the first drive component C62, the suction cup C67 is controlled to move in a dual-axis manner to approach the two sides of the battery bag of the battery cell.
[0044] Specifically, such as Figure 3As shown, the first drive assembly C62 includes a connector C63. The connector C63 has two symmetrically arranged, inclined strip-shaped sliding holes C64. Each end of one of the two mounting bases C61 has a slider C65, which slides within the two strip-shaped sliding holes C64. A first electric cylinder C66 is vertically mounted on the connector C63. The piston rod of the first electric cylinder C66 is fixedly connected to the connector C63. When the first drive assembly C62 is working, the first electric cylinder C66 is activated, driving the piston rod to vertically move the connector C63. The connector C63 moves in a straight line, causing the slider C65 inside its strip-shaped sliding hole C64 to slide. Since the two strip-shaped sliding holes C64 are symmetrical and inclined, the two sliders C65 move closer to or further away from each other along the length of the corresponding strip-shaped sliding hole C64. Both mounting seats C61 are horizontally sliding, so that the two mounting seats C61 can move closer to or further away from each other in the horizontal direction, so as to realize the function of the two mounting seats C61 and the suction cups on both sides C67 moving towards or away from each other.
[0045] Preferably, such as Figure 2 As shown, the flaring mechanism C2 includes a flaring base C21 and a flaring component C22. The flaring component C22 is vertically slidably disposed on the flaring base C21. The size of the flaring component C22 gradually increases from bottom to top. A second electric cylinder C23 is vertically fixedly installed on the flaring base C21. The second electric cylinder C23 is used to drive the flaring component C22 to slide vertically. After the battery bag completes the pre-flaring process, the flaring component C22 moves vertically under the action of the second electric cylinder C23 until it enters the battery bag to complete the flaring process. Furthermore, since the size of the flaring component C22 gradually increases from bottom to top, it is easier for the flaring component C22 to enter the interior of the battery bag and the possibility of damaging the battery bag can be reduced.
[0046] Preferably, such as Figure 4 As shown, the injection mechanism C3 includes an injection base C31, an injection component C32, a storage tank C33, a first liquid pump (not shown in the figure), and a third electric cylinder C34. The injection component C32 is vertically slidably mounted on the injection base C31. The third electric cylinder C34 is vertically mounted on the injection base C31 and is used to drive the injection component C32 to move vertically. The storage tank C33 contains electrolyte. Both the storage tank C33 and the first liquid pump are located on one side of the injection base C31. One end of a liquid pump is connected to the liquid injection component C32 through a liquid delivery pipe (not shown in the figure), and the other end is connected to the liquid storage tank C33 through a liquid delivery pipe. When the battery cell moves to the liquid injection mechanism C3 through the conveying mechanism C4, the liquid injection component C32 moves vertically under the action of the third electric cylinder C34 until it enters the battery bag. Then, the first liquid pump is started to pump the electrolyte in the liquid storage tank C33 into the liquid injection component C32 through the liquid delivery pipe, thereby entering the battery cell bag and completing the liquid injection.
[0047] Furthermore, the injection mechanism C3 also includes a buffer replenishment tank C35 and a second liquid pump (not shown in the figure). The buffer replenishment tank C35 is located directly above the storage tank C33. The second liquid pump is connected to the buffer replenishment tank C35 and is used to transport electrolyte from the outside to the buffer replenishment tank C35. The buffer replenishment tank C35 is connected to the storage tank C33 directly below it through a delivery pipe. The second liquid pump can pump electrolyte from the outside into the buffer replenishment tank C35 to replenish the electrolyte. Under the action of gravity, the electrolyte inside the buffer replenishment tank C35 gradually flows from the buffer replenishment tank C35 into the storage tank C33 through the delivery pipe, so as to temporarily store the electrolyte and balance the pressure fluctuation during the electrolyte transportation process to a certain extent, thereby improving the stability and reliability of the injection mechanism C3.
[0048] Furthermore, the injection mechanism C3 also includes several collection boxes C36 with top openings and a movable plate C37. Each collection box C36 corresponds to one of the injection components C32 and is mounted on the movable plate C37. The movable plate C37 is slidably mounted on the injection base C31. There are collection positions along the sliding path of the collection boxes C36. When the collection box C36 is in the collection position, it is located directly below the injection component C32. The injection base C31 is equipped with a second cylinder C3 for driving the collection boxes C36 to slide. 8. After the electrolyte injection process is completed, the third electric cylinder C34 drives the electrolyte injection component C32 to move vertically upward away from the battery cell to make way for the moving plate C37 and the collection box C36. During the vertical movement, the leaked electrolyte will drip into the battery cell without leaking out. After making way, the second cylinder C38 drives the moving plate C37 to move the collection box C36 to the collection position. The leaked electrolyte drips into the collection box C36 for collection, thereby avoiding the waste of electrolyte and reducing the possibility of electrolyte splashing onto the site.
[0049] Furthermore, the size of the liquid injection component C32 gradually increases from bottom to top to facilitate the liquid injection component C32 entering the battery bag of the battery cell and to reduce the possibility of damaging the battery bag.
[0050] The implementation principle of the battery cell flaring and liquid injection device in this application embodiment is as follows: During operation, the battery cell is vertically placed on the workstation C5. The conveying mechanism C4 conveys the workstation plate, driving the battery cell on the workstation C5 to the flaring machine base C21. By activating the first drive component C62, two opposing mounting seats C61 are driven to move towards each other, so that the suction cups C67 located on the two mounting seats C61 move close to the opposite sides of the battery cell bag until they abut and are adsorbed. Then, the battery bag is opened under the pull of the suction cups C67 on both sides, completing the pre-flaring operation. After the battery bag completes the pre-flaring process, the flaring part C22 moves vertically under the action of the second electric cylinder C23 until it enters the battery bag, completing the flaring process. At this time, the conveying mechanism C4 conveys the battery cell to the liquid injection machine base C31. By activating the first drive component C62, two opposing mounting seats C61 are driven to move towards each other. The mounting bases C61 move towards each other, causing the suction cups C67 on the two mounting bases C61 to move closer to the opposite sides of the battery cell bag until they come into contact and adhere, keeping the battery cell bag in its flared state. Then, the liquid injection component C32 moves vertically under the action of the third electric cylinder C34 until it enters the battery bag. Then, the first liquid pump is activated to pump the electrolyte in the storage tank C33 through the infusion pipe into the liquid injection component C32, thus entering the battery cell bag and completing the liquid injection. After the liquid injection process is completed, the third electric cylinder C34 drives the liquid injection component C32 to move vertically upward away from the battery cell to make way for the moving plate C37 and the collection box C36. After making way, the second cylinder C38 drives the moving plate C37 to move the collection box C36 to the collection position, and the leaked liquid drips into the collection box C36 for collection, avoiding waste of electrolyte.
[0051] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A battery cell flaring and liquid injection device, characterized in that, include: The work plate (C1) is provided with a number of workstations (C5) on which power supply cores are placed vertically; A flaring mechanism (C2) is provided with a first pre-flaring component (C6). When the battery cell is located at the work station (C5), the first pre-flaring component (C6) is used to pre-flare the battery cell bag, and the flaring mechanism (C2) is used to flare the battery cell bag. The liquid injection mechanism (C3) is provided with a second pre-expansion component (C7). When the battery cell is located at the work station (C5), the second pre-expansion component (C7) is used to grip the opposite sides of the battery cell bag to keep the battery cell bag open. The liquid injection mechanism (C3) is used to deliver electrolyte into the battery cell bag. A conveying mechanism (C4) is provided, wherein the working plate (C1) is connected to the conveying mechanism (C4), and the conveying mechanism (C4) is used to sequentially convey the working plate (C1) to the flaring mechanism (C2) and the liquid injection mechanism (C3).
2. The battery cell flaring and liquid injection device as described in claim 1, characterized in that, Both the first pre-expansion assembly (C6) and the second pre-expansion assembly (C7) include two opposing mounting seats (C61) and a first driving assembly (C62). The two mounting seats (C61) are horizontally slidably disposed on the flaring mechanism (C2) or the liquid injection mechanism (C3). Each mounting seat (C61) is horizontally provided with a suction cup (C67). The suction cup (C67) is connected to an external air pump. When the battery cell is located between the two mounting seats (C61), the two suction cups (C67) are respectively used to abut against the opposite sides of the battery cell bag. The first driving assembly (C62) is used to drive the two opposing mounting seats (C61) to move towards or away from each other.
3. The battery cell flaring and liquid injection device as described in claim 2, characterized in that, Both the flaring mechanism (C2) and the liquid injection mechanism (C3) are vertically slidably connected to the lifting plate (C8). Both mounting seats (C61) are installed below the lifting plate (C8). Both the flaring mechanism (C2) and the liquid injection mechanism (C3) are vertically mounted with a first cylinder (C9), and the piston rod of the first cylinder (C9) is fixedly connected to the lifting plate (C8).
4. The battery cell flaring and liquid injection device as described in claim 2, characterized in that, The first drive assembly (C62) includes a connector (C63), on which two symmetrical and inclined strip-shaped sliding holes (C64) are provided. Each end of the two mounting bases (C61) is provided with a slider (C65), and the two sliders (C65) are respectively slidably engaged in the two strip-shaped sliding holes (C64). A first electric cylinder (C66) is vertically mounted on the connector (C63), and the piston rod of the first electric cylinder (C66) is fixedly connected to the connector (C63).
5. The battery cell flaring and liquid injection device as described in claim 1, characterized in that, The flaring mechanism (C2) includes a flaring base (C21) and a flaring component (C22). The flaring component (C22) is vertically slidably disposed on the flaring base (C21). The size of the flaring component (C22) gradually increases from bottom to top. A second electric cylinder (C23) is vertically fixedly installed on the flaring base (C21). The second electric cylinder (C23) is used to drive the flaring component (C22) to slide vertically.
6. The battery cell flaring and liquid injection device as described in claim 1, characterized in that, The liquid injection mechanism (C3) includes a liquid injection base (C31), a liquid injection component (C32), a liquid storage tank (C33), a first liquid pump, and a third electric cylinder (C34). The liquid injection component (C32) is vertically slidably disposed on the liquid injection base (C31). The third electric cylinder (C34) is vertically mounted on the liquid injection base (C31) and is used to drive the liquid injection component (C32) to move vertically. The liquid storage tank (C33) contains electrolyte. The liquid storage tank (C33) and the first liquid pump are both disposed on one side of the liquid injection base (C31). One end of the first liquid pump is connected to the liquid injection component (C32) through a liquid delivery pipe, and the other end is connected to the liquid storage tank (C33) through a liquid delivery pipe.
7. The battery cell flaring and liquid injection device as described in claim 6, characterized in that, The liquid injection mechanism (C3) further includes a buffer replenishment tank (C35) and a second liquid pump. The buffer replenishment tank (C35) is located directly above the storage tank (C33). The second liquid pump is connected to the buffer replenishment tank (C35) and is used to deliver electrolyte from the outside to the buffer replenishment tank (C35). The buffer replenishment tank (C35) is connected to the storage tank (C33) directly below it via a delivery pipe.
8. The battery cell flaring and liquid injection device as described in claim 6, characterized in that, The injection mechanism (C3) further includes several collection boxes (C36) with top openings and a movable plate (C37). The collection boxes (C36) correspond one-to-one with the injection components (C32) and are installed on the movable plate (C37). The movable plate (C37) is slidably disposed on the injection base (C31). There are collection positions on the sliding path of the collection boxes (C36). When the collection box (C36) is in the collection position, the collection box (C36) is located directly below the injection component (C32). The injection base (C31) is provided with a second cylinder (C38) for driving the collection box (C36) to slide.
9. The battery cell flaring and liquid injection device as described in claim 6, characterized in that, The size of the injection unit (C32) gradually increases from bottom to top.