Battery piece turning device

Abstract

The utility model provides a battery piece turning device which comprises a driving mechanism, a rotating shaft, an air distribution disc, an adsorption plate, an air inlet component and a vacuumizing unit. At least two air channels are formed in the rotating shaft in the axial direction of the rotating shaft; the number of the gas distribution discs is two, the gas distribution discs are both installed on the rotating shaft, at least two branch gas channels are arranged in each gas distribution disc, at least two adsorption plates are installed on each gas distribution disc, an adsorption channel is arranged in each adsorption plate, a plurality of adsorption holes are formed in the adsorption plates in the extending direction of the adsorption channels, the adsorption holes are communicated with the adsorption channels, and the adsorption channels are communicated with the adsorption channels. The branch air passages are in one-to-one correspondence with the adsorption passages and are communicated with the adsorption passages; the branch air passages, positioned on the same plane, on the two air distribution discs are communicated with the same air passage; the air inlet component is provided with a negative pressure air groove and a vacuum breaking opening, the vacuumizing unit is communicated with the negative pressure air groove, the vacuum breaking opening is communicated with the atmosphere, the air channel is communicated with the negative pressure air groove in the sheet turning process, the air channel is communicated with the vacuum breaking opening in the discharging process, and therefore the sheet turning device has high sheet turning efficiency and stability.

Description

Technical Field

[0001] The present application belongs to the technical field of solar cell production, and in particular, relates to a cell flipping device. Background Art

[0002] During the production of solar cells, the cells need to be flipped 180°. Existing devices for flipping cells usually achieve flipping of the cells by rotating a flipping mechanism driven by a motor. Although this method can flip the cells, the stability of the cells cannot be guaranteed during the flipping process. As the size of solar cells becomes larger and larger, but their thickness becomes thinner and thinner, and the processing efficiency of cells becomes higher and higher, it is currently required that during the flipping process of the cells, the flipping device needs to have higher stability and higher flipping efficiency, and minimize damage to the cells. Utility Model Content

[0003] In view of this, the present application provides a battery cell flipping device, which has high battery cell flipping stability and high flipping efficiency.

[0004] A battery cell flipping device comprises a driving mechanism, a rotating shaft, a gas distribution plate, an adsorption plate, an air intake component and a vacuum unit;

[0005] The driving mechanism drives the rotating shaft and the gas distribution disk to rotate synchronously, and at least two gas passages are arranged inside the rotating shaft along the axial direction of the rotating shaft;

[0006] There are two gas distribution plates, which are fixedly mounted at both ends of the rotating shaft respectively, each of which is provided with at least two branch air channels, each of which is provided with at least two adsorption plates, each of which is provided with an adsorption channel, and along the extension direction of the adsorption channel, a plurality of adsorption holes are provided on a side of the adsorption plate in contact with the battery cell, the adsorption holes are connected with the corresponding adsorption channels, each of the branch air channels corresponds to each of the adsorption channels one by one and are connected with each other, and the branch air channels located on the same plane in the two gas distribution plates are connected with the same air channel;

[0007] The air inlet component is provided with a negative pressure gas groove and a vacuum breaking port, the vacuum pumping unit is connected to the negative pressure gas groove, and the vacuum breaking port is connected to the atmosphere;

[0008] During the flipping process, the airway is connected to the negative pressure air groove, and the adsorption plate connected to the airway absorbs the battery cell. During unloading, the airway is connected to the vacuum breaking port, and the adsorption force of the adsorption plate connected to the airway on the battery cell is zero.

[0009] Preferably, the air intake component includes an air intake disk, which is arranged at one end of the rotating shaft away from the driving mechanism, and the negative pressure air groove and the vacuum breaking port are both opened on the air intake disk, and the vacuum breaking port passes through the air intake disk and is connected to the atmosphere. A vacuum interface is provided on the air intake disk, the negative pressure air groove is connected to the vacuum interface, and the vacuum interface is connected to the vacuum extraction unit.

[0010] Preferably, the air intake component further comprises a central rotating disk, and the central rotating disk is provided with at least two through holes penetrating the central rotating disk along the axial direction of the rotating shaft, and the through holes correspond to the air passages one by one and are interconnected;

[0011] One side of the central rotating disk is fixedly connected to the rotating shaft or the gas distribution disk, and the gas inlet disk abuts against the other side of the central rotating disk. The central rotating disk can rotate relative to the gas inlet disk and follow the rotating shaft.

[0012] Preferably, the diameter of the through hole is less than or equal to the width of the negative pressure gas groove.

[0013] Preferably, the air intake component comprises an air intake mandrel, the air intake mandrel is arranged in the rotating shaft, the air intake mandrel is closely fitted with the rotating shaft, and the rotating shaft can rotate relative to the air intake mandrel, and along the axial direction of the air intake mandrel, a first channel and a second channel are arranged in the air intake mandrel, and the first channel and the second channel are not connected;

[0014] The negative pressure gas groove and the vacuum breaking port are both provided on the air inlet mandrel, a vacuum interface is provided at one end of the air inlet mandrel, the negative pressure gas groove is connected with the vacuum interface through the first channel, and the vacuum breaking port is connected with the atmosphere through the second channel;

[0015] A negative pressure channel and a vacuum breaking channel are provided between each of the airways and the air inlet core shaft. When the rotating shaft rotates, the airway is connected with the negative pressure air groove through the corresponding negative pressure channel to introduce negative pressure into the airway, and the airway is connected with the vacuum breaking port through the corresponding vacuum breaking channel to break the vacuum of the airway.

[0016] Preferably, the diameter of the portion connecting the negative pressure channel and the negative pressure gas groove is less than or equal to the width of the negative pressure gas groove.

[0017] Preferably, at least two baffles are installed on each of the gas distribution plates, and a baffle is provided above one side of each of the adsorption plates having multiple adsorption holes. During the flipping process of the battery cell, the battery cell is located between the adsorption plate and the baffle.

[0018] Preferably, the adsorption plate and the baffle plate are both provided with a buffer layer at the contact portion with the battery cell.

[0019] Preferably, the negative pressure gas groove is an arc-shaped structure, and the arc length of the negative pressure gas groove can ensure that the battery cell is always sucked by the adsorption plate connected to the negative pressure gas groove during the flipping process.

[0020] Preferably, six adsorption plates are equidistantly arranged on each of the gas distribution disks, and six branch air channels are arranged inside the gas distribution disks, and six air channels are arranged inside the rotating shaft along the axial direction of the rotating shaft.

[0021] The beneficial effect of the present application is that during the flipping process of the battery cell, the corresponding air channel is connected to the negative pressure air groove, so that the two adsorption plates connected to the air channel can suck the two ends of the battery cell. When the battery cell is to be unloaded, the corresponding air channel is connected to the vacuum breaking port, so that the adsorption force of the two adsorption plates connected to the air channel on the battery cell is zero, allowing the battery cell to be separated from the corresponding adsorption plates, so that it has high flipping stability and reliability while having high efficiency, and the damage to the battery cell during the flipping process is small, and it can adapt to the flipping of larger and thinner battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0024] Figure 1 It is a structural schematic diagram of the film turning device in Example 1;

[0025] Figure 2 The figure is an internal perspective view of the air inlet disk, the air distribution disk and the adsorption plate in the axial direction of the rotating shaft in Example 1;

[0026] Figure 3 It is a schematic diagram of the structure of the air intake disk in Example 1;

[0027] Figure 4 is a perspective view of the rotating shaft in Example 1;

[0028] Figure 5 It is a structural schematic diagram of the film turning device in Example 2;

[0029] Figure 6 The figure is an internal perspective view of the rotating shaft, the air intake core shaft, the air distribution plate and the adsorption plate in the axial direction of the rotating shaft in Example 2;

[0030] Figure 7 is an internal perspective view of the rotating shaft in Example 2;

[0031] Figure 8 It is a schematic diagram of the structure of the air intake mandrel in Example 2;

[0032] Fig. 9 is a perspective view of the air intake mandrel in Example 2;

[0033] Fig.10 This is a diagram of the internal structure of the gas distribution plate on the flap turning device;

[0034] Fig.11 This is a diagram of the internal structure of the adsorption plate on the flip device.

[0035] In the figure: 1-driving mechanism; 11-driving motor; 12-reducer; 2-rotating shaft; 21-airway; 3-gas distribution disk; 31-branch airway; 311-first through hole; 312-second through hole; 4-adsorption plate; 41-adsorption channel; 42-adsorption hole; 5-air intake component; 51-negative pressure air groove; 52-vacuum breaking port; 53-air intake disk; 54-vacuum interface; 55-turntable; 56-air intake mandrel; 561-first channel; 562-second channel; 57-negative pressure channel; 58-vacuum channel; 6-baffle; 7-buffer layer; 8-support frame; 9-spring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] The present application provides a battery cell flipping device, referring to Figure 1-11 , including a driving mechanism 1, a rotating shaft 2, a gas distribution plate 3, an adsorption plate 4, an air intake component 5 and a vacuum unit (not shown in the figure);

[0039] The driving mechanism 1 drives the rotating shaft 2 and the gas distribution plate 3 to rotate synchronously, and at least two gas passages 21 are provided inside the rotating shaft 2 along the axial direction of the rotating shaft 2;

[0040] There are two gas distribution disks 3, and the two gas distribution disks 3 are fixedly mounted at both ends of the rotating shaft 2, respectively. Each of the gas distribution disks 3 is provided with at least two branch air channels 31, and each of the gas distribution disks 3 is provided with at least two adsorption plates 4, and each of the adsorption plates 4 is provided with an adsorption channel 41. Along the extension direction of the adsorption channel 41, a plurality of adsorption holes 42 are provided on a side of the adsorption plate 4 that contacts the battery cell, and the adsorption holes 42 are connected with the corresponding adsorption channels 41. Each of the branch air channels 31 corresponds to each of the adsorption channels 41 one by one and are connected with each other. The branch air channels 31 located on the same plane in the two gas distribution disks 3 are connected with the same air channel 21;

[0041] The air inlet component 5 is provided with a negative pressure gas groove 51 and a vacuum breaking port 52, the vacuum pumping unit is connected to the negative pressure gas groove 51, and the vacuum breaking port 52 is connected to the atmosphere;

[0042] During the flipping process, the air channel 21 is connected to the negative pressure air groove 51, and the adsorption plate 4 connected to the air channel 21 sucks the battery cell. When unloading, the air channel 21 is connected to the vacuum breaking port 52, and the adsorption force of the adsorption plate 4 connected to the air channel 21 on the battery cell is zero.

[0043] In the present application, each branch air channel 31 in the same air distribution plate 3 is connected with different air channels 21 and different adsorption channels 41, so that the adsorption of battery cells by each adsorption plate 4 installed on the same air distribution plate 3 is independently controlled, ensuring that each battery cell is adsorbed by the corresponding adsorption plate 4 at the loading station and is also adsorbed by the adsorption plate 4 during the flipping process. The adsorption force of the adsorption plate 4 on the battery cell is zero when it is about to reach the unloading station, which facilitates the control of the flipping process of each battery cell and makes the flipping process of the battery cell stable and reliable.

[0044] Specifically, during the flipping process of the battery cells, the battery cells are transferred to the two adsorption plates 4 located at the loading station. At this time, the air channel 21 connected to the adsorption channel 41 in the two adsorption plates 4 is connected to the negative pressure gas groove 51, and the vacuum unit vacuums the negative pressure gas groove 51 to generate negative pressure, and then the negative pressure enters the adsorption channel 41 through the corresponding air channel 21 and the branch air channel 31, so that the multiple adsorption holes 42 connected to the adsorption channel 41 adsorb the battery cells, and then under the action of the driving mechanism 1, the rotating shaft 2 and the gas distribution plate 3 rotate. During the rotating flipping process, the battery cells are always adsorbed on the two adsorption plates 4, that is, the air channel 21 connected to the adsorption channel 41 in the two adsorption plates 4 is always connected to the negative pressure gas groove 51, and during the continuous flipping process, the vacuum unit continuously vacuums the negative pressure gas groove 51. When the battery cell is about to reach the unloading station, the air duct 21 is connected to the vacuum breaking port 52 to achieve vacuum breaking, so that the adsorption force of the adsorption plate 4 on the battery cell is zero. Such early vacuum breaking allows the battery cell to be immediately conveyed out of the flipping device after reaching the unloading station, thereby improving the flipping efficiency.

[0045] During the flipping process, both ends of the battery cell are sucked by the corresponding adsorption plates 4, which can improve the flipping stability of the battery cell.

[0046] The present application does not impose any specific limitation on the rotation angle between the vacuum breaking point of the battery cell and the unloading station, as long as the battery cell will not separate from the adsorption plate 4 and will not be damaged during the process of rotating to the unloading station after the vacuum breaking.

[0047] It is understandable that the loading station and the unloading station should be located on the same horizontal line, that is, the loading station and the unloading station are set 180° apart, so that the battery cell can be rotated 180° from the loading station to the unloading station to achieve the purpose of flipping the cell.

[0048] The negative pressure gas groove 51 of the present application is an arc-shaped structure, and the arc length of the negative pressure gas groove 51 enables the adsorption channel 41 located at the loading station to be connected with the negative pressure gas groove 51 at the loading station, and during the flipping process of the battery cell, the adsorption channel 41 is always connected with the negative pressure gas groove 51 until it is about to reach the unloading station, when the adsorption channel 41 is no longer connected with the negative pressure gas groove 51, but is connected with the vacuum breaking port 52.

[0049] refer to Fig.10 Each branch air channel 31 is provided with a first through hole 311 and a second through hole 312. The branch air channel 31 is connected to the corresponding air channel 21 through the first through hole 311 thereon, and is connected to the corresponding adsorption channel 41 through the second through hole 312 thereon.

[0050] like Figure 1 and Figure 5As shown, two gas distribution plates 3 are provided on the rotating shaft 2, and the two gas distribution plates 3 are respectively installed at the two ends of the rotating shaft 2, and the branch airways 31 located at the same horizontal plane in the two gas distribution plates 3 are connected to the same airway 21, and an adsorption plate 4 on one of the gas distribution plates 3 adsorbs one end of the battery cell, and an adsorption plate 4 on the other gas distribution plate 3 adsorbs the other end of the battery cell, so that during the flipping process of the battery cell, both ends of the battery cell are adsorbed, and the flipping reliability and stability of this method are higher.

[0051] In the present application, at least two adsorption plates 4 are provided on each gas distribution plate 3, which can shorten the interval time between two adjacent battery cells and make the battery cell flipping efficiency higher.

[0052] Preferably, the adsorption plates 4 on each gas distribution plate 3 are arranged at equal distances from each other, so as to facilitate the control of the flipping of each battery cell.

[0053] Embodiment 1:

[0054] like Figure 1-4 and Figure 10-11 As shown, the air intake component 5 includes an air intake disk 53, and the air intake disk 53 is arranged at one end of the rotating shaft 2 away from the driving mechanism 1. The negative pressure air groove 51 and the vacuum breaking port 52 are both opened on the air intake disk 53, and the vacuum breaking port 52 passes through the air intake disk 53 and is connected to the atmosphere. A vacuum interface 54 is provided on the air intake disk 53, and the negative pressure air groove 51 is connected to the vacuum interface 54, and the vacuum interface 54 is connected to the vacuum pumping unit.

[0055] Specifically, refer to Figure 1 The driving mechanism 1 includes a driving motor 11 and a reducer 12. The power output end of the driving motor 11 is connected to the reducer 12. The reducer 12 can be connected to a gas distributor 3 far away from the vacuum unit, so that the gas distributor 3 rotates under the action of the driving motor 11, driving the rotating shaft 2 fixedly connected to it and another gas distributor 3 connected to the rotating shaft 2 to rotate synchronously, or the reducer 12 can also be connected to one end of the rotating shaft 2 away from the vacuum unit, and the rotating shaft 12 is driven to rotate by the driving motor 11, so that the gas distributor 3 fixedly connected to the rotating shaft 2 rotates synchronously.

[0056] During the flipping process of the battery cell, the vacuum unit is always in the open state, so that the negative pressure gas groove 51 is always injected with negative pressure. Then, during the flipping process of the rotating shaft 2, the rotating shaft 2 rotates and the air inlet disk 53 is in a stationary state, so that the air channels 21 in the rotating shaft 2 are injected with negative pressure when they rotate to connect with the negative pressure gas groove 51, and are injected with atmospheric pressure to break the vacuum when they rotate to connect with the vacuum breaking port 52.

[0057] This embodiment is provided with two support frames 8 , wherein one support frame 8 is used to support the reducer 12 , and the other support frame 8 is used to support the air intake plate 53 .

[0058] The air intake component 5 further includes a central rotating disk 55, on which at least two through holes (not shown) penetrating the central rotating disk 55 are formed along the axial direction of the rotating shaft 2, and the through holes correspond to the air passages 21 one by one and are connected to each other;

[0059] One side of the central rotating disk 55 is fixedly connected to the rotating shaft 2 or the gas distribution disk 3 , and the air inlet disk 53 abuts against the other side of the central rotating disk 55 . The central rotating disk 55 can rotate relative to the air inlet disk 53 following the rotating shaft 2 .

[0060] The air inlet disk 53, the rotating shaft 2 and the air distributor 3 of this embodiment are all made of metal. If the air inlet disk 53 directly contacts the rotating shaft 2 or the air distributor 3, since the air inlet disk 53 is in a stationary state and the rotating shaft 2 and the air distributor 3 are in a rotating state during the flapping process, the air inlet disk 53, the rotating shaft 2 or the air distributor 3 will be worn due to the long-term dynamic and static friction, resulting in poor air sealing and air leakage. The middle turntable 55 used in this embodiment is made of non-metallic wear-resistant material, and it is arranged between the air inlet disk 53 and the rotating shaft 2 or the air distributor 3, which can avoid direct contact between the air inlet disk 53 and the rotating shaft 2 or the air distributor 3, avoid poor air sealing caused by wear, and effectively prevent air leakage.

[0061] The present application does not make any specific limitation on whether the central rotating disk 55 is fixedly connected to the rotating shaft 2 or the gas distribution disk 3, as long as negative pressure or atmospheric air can enter the corresponding air passage 21 and branch air passage 31 through the through holes.

[0062] Specifically, the air intake disc 53 is mounted on the support frame 8 via the spring 9 , so that the air intake disc 53 is tightly abutted against the central rotating disc 55 via the support frame 8 , and the central rotating disc 55 rotates together with the rotating shaft 2 and the air distribution disc 3 .

[0063] During the flipping process of the battery cell, when the through hole is connected to the negative pressure air groove 51, the battery cell is adsorbed on the two adsorption plates 4 connected to the through hole; when the through hole is connected to the vacuum breaking port 52, the two adsorption plates 4 connected to the through hole break the vacuum, and the adsorption force on the battery cell is zero, so that the battery cell is conveyed out of the flipping device at the unloading station.

[0064] In this embodiment, the diameters of all the through holes are smaller than or equal to the width of the negative pressure gas groove 51 , so that a closed channel for transmitting negative pressure is formed between the through holes and the negative pressure gas groove 51 .

[0065] The number of adsorption plates 4 arranged on each gas distribution plate 3 should be the same, and the specific number of adsorption plates 4 arranged depends on the actual required film turning efficiency.

[0066] At least two baffles 6 are installed on each gas distribution plate 3. The number of the baffles 6 is the same as the number of the adsorption plates 4 arranged on the gas distribution plate 3, and they are arranged one by one, so that a baffle 6 is provided above one side of each adsorption plate 4 on which a plurality of adsorption holes 42 are opened. During the flipping process, the battery cell is located between the adsorption plate 4 and the baffle 6. The setting of the baffle 6 can limit the battery cell and prevent the battery cell from colliding during the flipping process.

[0067] like Figure 2 and Fig.11 As shown, the adsorption plate 4 and the baffle 6 are provided with a buffer layer 7 at the contact part with the battery cell. The buffer layer 7 can be a silicone pad or made of other plastic materials with buffering function. Providing the buffer layer 7 on the adsorption plate 4 and the baffle 6 can prevent the battery cell from shaking and being damaged during the flipping process, which helps to improve the stability of the battery cell flipping process, reduce the fragmentation rate of the battery cell, and improve the flipping efficiency of the battery cell.

[0068] like Fig.11 As shown, the multiple adsorption holes 42 opened on each adsorption plate 4 will penetrate the buffer layer 7 set on the adsorption plate 4, so that the negative pressure in the adsorption channel 41 in the adsorption plate 4 can directly act on the battery cell through each adsorption hole 42.

[0069] In this embodiment, six adsorption plates 4 are evenly spaced on each gas distribution plate 3 to illustrate the flap device of this embodiment in detail. The corresponding gas distribution plate 3 is provided with six branch air channels 31 (such as Fig.10 The interior of the rotating shaft 2 is provided with six air passages 21 along the axial direction of the rotating shaft 2 (as shown in FIG. Figure 4 As shown in FIG. 1 , the flipping device has six film suction positions. Each film suction position has two suction plates 4, which are respectively arranged on two gas distribution plates 3, and the two suction plates 4 are located on the same plane.

[0070] For the convenience of description, a first film suction station and a second film suction station are provided between the loading station and the unloading station (in the actual film flipping process, the battery cell is a continuous process from the loading station to the unloading station, and will pass through the first film suction station and the second film suction station in turn). The six film suction positions on the film flipping device are named 1# film suction position, 2# film suction position, 3# film suction position, 4# film suction position, 5# film suction position, and 6# film suction position in turn.

[0071] refer to Figure 2, the 1# film suction position is located at the loading station, and the battery cell is transferred to between the adsorption plate 4 and the baffle 6 of the 1# film suction position at the loading station, and the through hole connected to the adsorption channel 41 of the 1# film suction position is connected to the negative pressure gas groove 51, so that the battery cell is adsorbed on the adsorption plate 4 of the 1# film suction position; then the rotating shaft 2 and the gas distribution plate 3 are rotated along Figure 2 Rotate in the direction indicated by the middle arrow, so that the 1# sucking position reaches the first sucking position, at this time, the 2# sucking position adjacent to the 1# sucking position reaches the loading position, and the through hole connected to the adsorption channel 41 of the 2# sucking position is connected to the negative pressure gas groove 51, so that the next battery cell to be flipped is adsorbed on the adsorption plate 4 of the 2# sucking position at the loading position, at this time, the through hole connected to the adsorption channel 41 of the 1# sucking position and the through hole connected to the adsorption channel 41 of the 2# sucking position are both connected to the negative pressure gas groove 51; then continue along Figure 2 The 1# sucking position reaches the second sucking position, the 2# sucking position reaches the first sucking position, and the 3# sucking position reaches the loading position. The through hole connected to the adsorption channel 41 of the 3# sucking position is connected to the negative pressure gas groove 51 to adsorb another battery cell to be flipped. At this time, the three through holes connected to the adsorption channels 41 of the 1# sucking position, the 2# sucking position, and the 3# sucking position are all connected to the negative pressure gas groove 51. When the 1# sucking position is rotated to the point where it is about to reach the unloading position, the through hole connected to the adsorption channel 41 of the 1# sucking position is connected to the negative pressure gas groove 51. The hole is separated from the negative pressure gas groove 51 and connected with the vacuum breaking port 52, so that the atmosphere is injected into the corresponding adsorption channel 41 to achieve the purpose of breaking the vacuum, so that when the battery cell is about to reach the unloading station, the battery cell is no longer adsorbed by the adsorption plate 4 of the 1# suction position, so that the battery cell can be unloaded immediately after arriving at the unloading station, which is more efficient; when the 1# suction position arrives at the unloading station, the 2# suction position arrives at the second suction position, the 3# suction position arrives at the first suction position, and the 4# suction position arrives at the loading station.

[0072] During the flipping process, the six sucking stations on the flipping device arrive at the loading station, the first sucking station, the second sucking station and the unloading station in turn, continuously flipping the battery cells, and then returning to the loading station in turn after flipping, thereby continuously flipping the battery cells at the loading station.

[0073] like Figure 2As shown, the starting end of the negative pressure gas groove 51 is at the loading station, and the terminal end of the negative pressure gas groove 51 is located between the second film suction station and the unloading station, so that each through hole can be connected to the negative pressure gas groove 51 at the loading station, the first film suction station and the second film suction station. The vacuum breaking port 52 is set between the terminal end of the negative pressure gas groove 51 and the unloading station, so that each through hole is connected to the vacuum breaking port 52 to break the vacuum before reaching the unloading station, and when the battery cell reaches the unloading station, it can be immediately conveyed out of the flipping device. Of course, the vacuum breaking port 52 can also be set at the unloading station, and when the through hole is connected to the vacuum breaking port 52 to break the vacuum, the battery cell is conveyed out of the flipping device.

[0074] Embodiment 2:

[0075] refer to Figure 5-11 The air intake component 5 includes an air intake mandrel 56, which is disposed in the rotating shaft 2, and the air intake mandrel 56 is tightly fitted with the rotating shaft 2, and the rotating shaft 2 can rotate relative to the air intake mandrel 56, and along the axial direction of the air intake mandrel 56, a first channel 561 and a second channel 562 are disposed in the air intake mandrel 56, and the first channel 561 and the second channel 562 are not connected;

[0076] The negative pressure gas groove 51 and the vacuum breaking port 52 are both opened on the air inlet core shaft 56. A vacuum interface 54 is provided at one end of the air inlet core shaft 56. The negative pressure gas groove 51 is connected to the vacuum interface 54 through the first channel 561, and the vacuum breaking port 52 is connected to the atmosphere through the second channel 562.

[0077] A negative pressure channel 57 and a vacuum breaking channel 58 are provided between each of the air channels 21 and the air inlet core shaft 56. When the rotating shaft 2 rotates, the air channels 21 are connected with the negative pressure gas groove 51 through the corresponding negative pressure channel 57 to introduce negative pressure into the air channels 21, and the air channels 21 are connected with the vacuum breaking port 52 through the corresponding vacuum breaking channel 58 to break the vacuum of the air channels 21.

[0078] refer to Figure 5 The driving mechanism 1 includes a driving motor 11 and a reducer 12. The power output end of the driving motor 11 is connected to the reducer 12. The reducer 12 can be connected to a gas distributor 3 far away from the vacuum unit, so that the gas distributor 3 rotates under the action of the driving motor 11, driving the rotating shaft 2 fixedly connected to it and another gas distributor 3 connected to the rotating shaft 2 to rotate synchronously, or the reducer 12 can also be connected to one end of the rotating shaft 2 away from the vacuum unit, and the rotating shaft 12 is driven to rotate by the driving motor 11, so that the two gas distributors 3 fixedly connected to the rotating shaft 2 rotate synchronously.

[0079] During the flipping process of the battery cell, the vacuum unit is always in the open state, so that the negative pressure gas groove 51 is injected with negative pressure through the first channel 561. During the process of the flipping device rotating to flip the cell, the air inlet mandrel 56 is always in a stationary state, and the rotating shaft 2 rotates relative to the air inlet mandrel 56. When the air channel 21 is connected to the negative pressure gas groove 51 through the corresponding negative pressure channel 57, the adsorption channel 41 connected to the air channel 21 is injected with negative pressure, thereby adsorbing the battery cell. When the rotating shaft 2 rotates until the air channel 21 is connected to the vacuum breaking port 52 through the corresponding vacuum breaking channel 58, the adsorption channel 41 connected to the air channel 21 is injected with atmospheric pressure to break the vacuum.

[0080] This embodiment is provided with two support frames 8, one of which is used to support the reducer 12, and the other is used to support the end of the air intake mandrel 56 away from the driving mechanism 1, that is, to support the end of the air intake mandrel 56 connected to the vacuum interface 54.

[0081] The diameters of the parts of all the negative pressure channels 57 communicating with the negative pressure gas grooves 51 are smaller than or equal to the width of the negative pressure gas grooves 51 , so that a closed channel for transmitting negative pressure is formed between the negative pressure channels 57 and the negative pressure gas grooves 51 .

[0082] The number of adsorption plates 4 arranged on each gas distribution plate 3 should be the same, and the specific number of adsorption plates 4 arranged depends on the actual required film turning efficiency.

[0083] At least two baffles 6 are installed on each gas distribution plate 3. The number of the baffles 6 is the same as the number of the adsorption plates 4 arranged on the gas distribution plate 3, and they are arranged one by one, so that a baffle 6 is provided above one side of each adsorption plate 4 on which a plurality of adsorption holes 42 are opened. During the flipping process, the battery cell is located between the adsorption plate 4 and the baffle 6. The setting of the baffle 6 can limit the battery cell and prevent the battery cell from colliding during the flipping process.

[0084] like Figure 6 and Fig.11 As shown, the adsorption plate 4 and the baffle 6 are provided with a buffer layer 7 at the contact part with the battery cell. The buffer layer 7 can be a silicone pad or made of other plastic materials with buffering function. Providing the buffer layer 7 on the adsorption plate 4 and the baffle 6 can prevent the battery cell from shaking and being damaged during the flipping process, which helps to improve the stability of the battery cell flipping process, reduce the fragmentation rate of the battery cell, and improve the flipping efficiency of the battery cell.

[0085] like Fig.11 As shown, the multiple adsorption holes 42 opened on each adsorption plate 4 will penetrate the buffer layer 7 set on the adsorption plate 4, so that the negative pressure in the adsorption channel 41 in the adsorption plate 4 can directly act on the battery cell through each adsorption hole 42.

[0086] In this embodiment, six adsorption plates 4 are evenly spaced on each gas distribution plate 3 to illustrate the flap device of this embodiment in detail. The corresponding gas distribution plate 3 is provided with six branch air channels 31 (such as Fig.10 As shown), six air passages 21 are arranged inside the rotating shaft 2 along the axial direction of the rotating shaft 2, and a negative pressure passage 57 and a vacuum breaking passage 58 are arranged between each air passage 21 and the air inlet core shaft 56 (as shown in FIG. Figure 7 As shown), the flap device has six flap suction positions.

[0087] For the convenience of description, a first film suction station and a second film suction station are provided between the loading station and the unloading station (in the actual film flipping process, the battery cell is a continuous process from the loading station to the unloading station, and will pass through the first film suction station and the second film suction station in turn). The six film suction positions on the film flipping device are named 1# film suction position, 2# film suction position, 3# film suction position, 4# film suction position, 5# film suction position, and 6# film suction position in turn.

[0088] like Figure 6 As shown, the 1# film suction position is located at the loading station, and the battery cell is transferred to between the adsorption plate 4 and the baffle 6 of the 1# film suction position at the loading station. The adsorption channel 41 of the 1# film suction position is connected with the negative pressure gas groove 51 through the corresponding branch air channel 31, the air channel 21 and the negative pressure channel 57, so that the battery cell is adsorbed on the adsorption plate 4 of the 1# film suction position; then the rotating shaft 2 and the gas distribution plate 3 are rotated along Figure 6 Rotate in the direction indicated by the middle arrow, so that the 1# film suction position reaches the first film suction position, at this time, the 2# film suction position adjacent to the 1# film suction position reaches the loading position, and the adsorption channel 41 of the 2# film suction position is connected with the negative pressure gas groove 51 through the corresponding branch airway 31, airway 21 and negative pressure channel 57, so that the next battery cell to be flipped is adsorbed on the adsorption plate 4 of the 2# film suction position at the loading station, at this time, the negative pressure channel 57 connected with the adsorption channel 41 of the 1# film suction position and the negative pressure channel 57 connected with the adsorption channel 41 of the 2# film suction position are both connected with the negative pressure gas groove 51; then continue along Figure 2Rotate in the direction indicated by the arrow, the 1# film suction position reaches the second film suction position, the 2# film suction position reaches the first film suction position, and the 3# film suction position reaches the loading position. The negative pressure channel 57 connected to the adsorption channel 41 of the 3# film suction position is connected to the negative pressure gas groove 51 to adsorb another battery cell to be flipped. At this time, the three negative pressure channels 57 connected to the adsorption channels 41 of the 1# film suction position, the 2# film suction position, and the 3# film suction position are all connected to the negative pressure gas groove 51; when the 1# film suction position rotates to the point where it is about to reach the unloading position, the negative pressure channel 57 connected to the adsorption channel 41 of the 1# film suction position is disconnected from the negative pressure gas groove 51. The air groove 51, the vacuum breaking channel 58 connected with the adsorption channel 41 of the 1# film suction position, is connected with the vacuum breaking port 52, so that the corresponding adsorption channel 41 is injected with atmosphere to achieve the purpose of breaking the vacuum, so that when the battery cell is about to reach the unloading station, the battery cell is no longer adsorbed by the adsorption plate 4 of the 1# film suction position, so that the battery cell can be unloaded immediately after reaching the unloading station, which is more efficient; when the 1# film suction position reaches the unloading station, the 2# film suction position reaches the second film suction position, the 3# film suction position reaches the first film suction position, and the 4# film suction position reaches the loading station.

[0089] During the flipping process, the six sucking stations on the flipping device arrive at the loading station, the first sucking station, the second sucking station and the unloading station in turn, continuously flipping the battery cells. After flipping, they return to the loading station in turn, thereby continuously flipping the battery cells at the loading station.

[0090] The starting end of the negative pressure gas groove 51 of this embodiment is at the loading station, and the terminal end of the negative pressure gas groove 51 is located between the second film suction station and the unloading station, so that each negative pressure channel 57 can be connected with the negative pressure gas groove 51 at the loading station, the first film suction station and the second film suction station. The vacuum breaking port 52 is set between the terminal end of the negative pressure gas groove 51 and the unloading station, so that each vacuum breaking channel 58 is connected with the vacuum breaking port 52 to break the vacuum before reaching the unloading station, and when the battery cell reaches the unloading station, it can be immediately conveyed out of the flipping device. Of course, the vacuum breaking port 52 can also be set at the unloading station, and when the vacuum breaking channel 58 is connected with the vacuum breaking port 52 to break the vacuum, the battery cell is conveyed out of the flipping device.

[0091] The battery cell flipping device provided in the present application has high flipping efficiency and high flipping stability and reliability, causes less damage to the battery cell during the flipping process, and can be used for flipping large-sized and thin battery cells.

[0092] The sheet turning device of the present application may also be provided with fewer or more sheet sucking positions than six sheet sucking positions, and the specific number of sheet sucking positions may be set according to the actually required sheet turning efficiency.

[0093] In this specification, each embodiment is described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0094] It should be noted that in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0095] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0096] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery cell flipping device, characterized in that: It comprises a driving mechanism (1), a rotating shaft (2), a gas distribution plate (3), an adsorption plate (4), an air intake component (5) and a vacuum unit; The driving mechanism (1) drives the rotating shaft (2) and the gas distribution disk (3) to rotate synchronously, and at least two gas passages (21) are provided inside the rotating shaft (2) along the axial direction of the rotating shaft (2); Two gas distribution plates (3) are provided, and the two gas distribution plates (3) are respectively fixedly mounted at the two ends of the rotating shaft (2), and each gas distribution plate (3) is provided with at least two branch air channels (31) inside, and at least two adsorption plates (4) are mounted on each gas distribution plate (3), and each adsorption plate (4) is provided with an adsorption channel (41) inside, and along the extension direction of the adsorption channel (41), a plurality of adsorption holes (42) are provided on a side of the adsorption plate (4) in contact with the battery cell, and the adsorption holes (42) are connected with the corresponding adsorption channels (41), and each branch air channel (31) corresponds to each adsorption channel (41) one by one and is connected with each other, and the branch air channels (31) located on the same plane in the two gas distribution plates (3) are connected with the same air channel (21); The air inlet component (5) is provided with a negative pressure gas groove (51) and a vacuum breaking port (52), the vacuum pumping unit is connected to the negative pressure gas groove (51), and the vacuum breaking port (52) is connected to the atmosphere; During the flipping process, the air channel (21) is connected to the negative pressure air groove (51), and the adsorption plate (4) connected to the air channel (21) absorbs the battery cell. During unloading, the air channel (21) is connected to the vacuum breaking port (52), and the adsorption force of the adsorption plate (4) connected to the air channel (21) on the battery cell is zero.

2. A battery cell flipping device according to claim 1, characterized in that: The air intake component (5) comprises an air intake disk (53), the air intake disk (53) is arranged at one end of the rotating shaft (2) away from the driving mechanism (1), the negative pressure gas groove (51) and the vacuum breaking port (52) are both provided on the air intake disk (53), the vacuum breaking port (52) passes through the air intake disk (53) and is connected to the atmosphere, a vacuum interface (54) is provided on the air intake disk (53), the negative pressure gas groove (51) is connected to the vacuum interface (54), and the vacuum interface (54) is connected to the vacuum pumping unit.

3. The battery cell flipping device according to claim 2, characterized in that: The air intake component (5) further comprises a central rotating disk (55), wherein the central rotating disk (55) is provided with at least two through holes penetrating the central rotating disk (55) along the axial direction of the rotating shaft (2), wherein the through holes correspond to the air passages (21) one by one and are in communication with each other; One side of the central rotating disk (55) is fixedly connected to the rotating shaft (2) or the gas distribution disk (3), and the gas inlet disk (53) abuts against the other side of the central rotating disk (55). The central rotating disk (55) can rotate relative to the gas inlet disk (53) and follow the rotating shaft (2).

4. The battery cell flipping device according to claim 3, characterized in that: The diameter of the through hole is less than or equal to the width of the negative pressure gas groove (51).

5. The battery cell flipping device according to claim 1, characterized in that: The air intake component (5) comprises an air intake core shaft (56), the air intake core shaft (56) is arranged in the rotating shaft (2), the air intake core shaft (56) is tightly fitted with the rotating shaft (2), and the rotating shaft (2) can rotate relative to the air intake core shaft (56), and along the axial direction of the air intake core shaft (56), a first channel (561) and a second channel (562) are arranged in the air intake core shaft (56), and the first channel (561) and the second channel (562) are not connected; The negative pressure gas groove (51) and the vacuum breaking port (52) are both provided on the air inlet core shaft (56); a vacuum interface (54) is provided at one end of the air inlet core shaft (56); the negative pressure gas groove (51) is in communication with the vacuum interface (54) through the first channel (561); and the vacuum breaking port (52) is in communication with the atmosphere through the second channel (562); A negative pressure channel (57) and a vacuum breaking channel (58) are provided between each of the air channels (21) and the air inlet core shaft (56). When the rotating shaft (2) rotates, the air channels (21) are connected with the negative pressure gas groove (51) through the corresponding negative pressure channel (57) to introduce negative pressure into the air channels (21), and the air channels (21) are connected with the vacuum breaking port (52) through the corresponding vacuum breaking channel (58) to break the vacuum in the air channels (21).

6. The battery cell flipping device according to claim 5, characterized in that: The diameter of the portion where the negative pressure channel (57) communicates with the negative pressure gas groove (51) is less than or equal to the width of the negative pressure gas groove (51).

7. A battery cell flipping device according to any one of claims 1 to 6, characterized in that: At least two baffles (6) are installed on each of the gas distribution plates (3), and a baffle (6) is provided above one side of each of the adsorption plates (4) on which a plurality of adsorption holes (42) are provided. During the flipping process of the battery cell, the battery cell is located between the adsorption plate (4) and the baffle (6).

8. The battery cell flipping device according to claim 7, characterized in that: The adsorption plate (4) and the baffle plate (6) are both provided with a buffer layer (7) at the contact portion with the battery sheet.

9. A battery cell flipping device according to any one of claims 1 to 6, characterized in that: The negative pressure gas groove (51) is an arc-shaped structure, and the arc length of the negative pressure gas groove (51) enables the battery cell to be always sucked by the adsorption plate (4) connected to the negative pressure gas groove (51) during the flipping process.

10. A battery cell flipping device according to any one of claims 1 to 6, characterized in that: Six adsorption plates (4) are equidistantly arranged on each of the gas distribution plates (3), and six branch air passages (31) are arranged inside the gas distribution plates (3), and six air passages (21) are arranged inside the rotating shaft (2) along the axial direction of the rotating shaft (2).

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