Flipping mechanism and conveying device for solar cells

Abstract

This application relates to a flipping mechanism and conveying device for solar cells. By providing a through groove running radially through the flipping shaft, it is possible to achieve flipping conveying or DC conveying of solar cells. When DC conveying is required, the through groove is connected to two radially opposite first receiving grooves, allowing the solar cells to enter the first receiving groove on the other side from one side of the first receiving groove, thus achieving DC conveying. When flipping conveying is in progress, since the through groove is not connected to the first receiving grooves, the solar cells will not enter the through groove from the first receiving groove. Therefore, the flipping mechanism can achieve the flipping of the solar cells by rotation. This allows the flipping mechanism to adapt to the conveying requirements of different manufacturing processes or different battery types, expanding the application scenarios of the flipping mechanism, improving its adaptability, eliminating the need to add or replace it with a DC conveying mechanism, and reducing the manufacturing cost and space occupation of the conveying device.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a flipping mechanism and conveying device for solar cells. Background Technology

[0002] During the manufacturing process of photovoltaic cells, a flipping mechanism is usually used to flip the cells. For example, when it is necessary to print electrodes on both sides of the cell, the flipping mechanism flips the cell so that both sides can be printed.

[0003] However, due to differences in manufacturing processes, some transport scenarios do not require flipping the solar cells, meaning direct current (DC) transport is necessary. Clearly, existing flipping mechanisms cannot achieve DC transport, thus limiting their application scenarios. Utility Model Content

[0004] Therefore, it is necessary to provide a flipping mechanism for battery cells to address the limitation of existing conveying devices in terms of application scenarios.

[0005] A flipping mechanism for solar cells, the flipping mechanism for solar cells comprising:

[0006] A flipping shaft, wherein the flipping shaft is provided with a through groove extending radially through itself;

[0007] A receiving unit is connected to the flipping shaft; the receiving unit includes a plurality of receiving blades that are circumferentially spaced along the flipping shaft, and the gap between two adjacent receiving blades forms a first receiving groove.

[0008] When in DC transmission mode, the through groove connects two first receiving grooves that are radially opposite to each other along the flipping axis;

[0009] When the material is being conveyed through a flipping mechanism, the through groove is not connected to any of the first receiving grooves.

[0010] In one embodiment, the flipping mechanism further includes a blocking member connected to the flipping shaft;

[0011] During the flipping conveying process, at least a portion of the sealing member is located between the through groove and the first receiving groove communicating with the through groove, so as to separate the through groove from the first receiving groove.

[0012] In one embodiment, the sealing element is detachably connected to the flipping shaft;

[0013] During the flipping and conveying process, the sealing member is connected to the flipping shaft;

[0014] When the DC transmission is in progress, the sealing element is disconnected from the flipping shaft.

[0015] In one embodiment, the sealing member is slidably connected to the flip shaft along the axial direction of the flip shaft;

[0016] During the flipping conveying process, the sealing element is in the sealing position, and the sealing element and the through groove are radially distributed along the flipping axis;

[0017] When the DC transmission is in progress, the sealing element is in a clearance position, and the sealing element and the through groove are spaced apart along the axial direction of the flipping shaft.

[0018] In one embodiment, the sealing element includes a sealing section and a connecting section distributed axially along the flip axis;

[0019] The blocking section is used to block at least a portion of the through groove, and the connecting section is connected to the flipping shaft.

[0020] In one embodiment, the receiving unit further includes a fixing member sleeved on the flipping shaft, and the receiving blade is fixedly connected to the fixing member;

[0021] The fixing component has a connecting groove, which connects the through groove and the first receiving groove when the DC conveying is in operation.

[0022] In one embodiment, the fastener includes a fixed shaft having a snap-fit ​​groove to which the receiving blade is connected.

[0023] In one embodiment, the fastener further includes a plurality of fastening blades connected to the fastening shaft and protruding radially outward along the fastening shaft;

[0024] Multiple fixed blades are arranged circumferentially along the fixed axis, and the gap between two adjacent fixed blades forms a second receiving groove. The second receiving groove and the first receiving groove are distributed axially along the fixed axis.

[0025] In one embodiment, at least one of the flipping shaft and the fixing member is rotatable relative to the other about its own axis, so that the through groove is offset from or connected to the first receiving groove.

[0026] A conveying device includes a flipping mechanism for battery cells as described above, and conveying mechanisms disposed on both radial sides of the flipping shaft.

[0027] The aforementioned flipping mechanism for solar cells, by providing a through-slot running radially through its flipping shaft, enables either flipped conveying or DC conveying of the solar cells. When DC conveying is required, the through-slot connects to two radially distributed first receiving slots, allowing the solar cells to pass from one first receiving slot to the other, thus achieving DC conveying. During flipped conveying, since the through-slot is not connected to the first receiving slots, the solar cells will not enter from the first receiving slots; therefore, the rotation of the flipping mechanism enables the flipping of the solar cells. This design allows the flipping mechanism to adapt to the conveying needs of different manufacturing processes or different battery types, expanding its application scenarios and improving its adaptability. It eliminates the need to add or replace the original DC conveying mechanism, reducing the manufacturing cost and space required for the conveying device. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a flipping mechanism for battery cells provided in an embodiment of this application, in the form of flipping and conveying.

[0029] Figure 2 for Figure 1 The right view shown is of the flipping mechanism applied to the battery cells.

[0030] Figure 3 for Figure 1 The diagram shown is a partial view of the flipping mechanism applied to the battery cells from another perspective.

[0031] Figure 4 for Figure 3 The image shows a magnified view of point A in the flipping mechanism applied to the battery cells.

[0032] Figure 5 for Figure 1 The flipping mechanism applied to the battery cells shown is in the right view of the DC transmission.

[0033] Figure 6 for Figure 5 The diagram shown is a schematic representation of the flipping mechanism applied to the battery cells from another perspective.

[0034] Figure 7 for Figure 6 The image shows a magnified view of point B in the flipping mechanism applied to the battery cells.

[0035] Reference numerals: 100, flip axis; 110, through groove;

[0036] 200, receiving unit; 210, receiving blade; 220, first receiving groove;

[0037] 300. Sealing component; 310. Sealing section; 320. Connecting section;

[0038] 400, Fixing component; 401, Connecting groove; 410, Fixing shaft; 420, Fixing blade; 430, Second receiving groove. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0040] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0045] In the manufacturing process of photovoltaic cells, a flipping mechanism is typically used to flip the cells, for example, when electrode printing is required on both sides. However, due to differences in manufacturing processes or cell types, such as back-contact cells where the electrodes are located on the back, electrode printing does not require flipping and conveying the cells; direct current (DC) transport is necessary. Existing flipping mechanisms cannot achieve DC transport, limiting their application. In such cases, a new or replacement DC transport mechanism is required, which obviously increases the manufacturing cost and space requirements of the transport device.

[0046] Based on this, one embodiment of this application provides a flipping mechanism for battery cells, capable of flipping and conveying battery cells or DC conveying. This allows the flipping mechanism to adapt to the conveying requirements of different manufacturing processes or different battery types, expanding the application scenarios of the flipping mechanism and improving its adaptability. It eliminates the need to add or replace the existing DC conveying mechanism, reducing the manufacturing cost and space occupied by the conveying device. The flipping mechanism for battery cells provided in one embodiment of this application will now be described in detail with reference to the accompanying drawings.

[0047] See Figure 1 , Figure 2 , Figure 4 as well as Figure 5As shown, an embodiment of this application provides a flipping mechanism for battery cells, including a flipping shaft 100 and a receiving unit 200. The flipping shaft 100 is provided with a through groove 110 extending radially through itself. The receiving unit 200 is connected to the flipping shaft 100 and includes a plurality of receiving blades 210 spaced circumferentially along the flipping shaft 100. The gap between two adjacent receiving blades 210 forms a first receiving groove 220. In DC conveying, the through groove 110 communicates between two first receiving grooves 220 that are radially opposite to each other along the flipping shaft 100. In flipping conveying, the through groove 110 is not communicated with either first receiving groove 220. By providing a through groove 110 extending radially through itself on the flipping shaft 100, flipping conveying or DC conveying of battery cells can be realized.

[0048] Specifically, see Figure 5 and Figure 7 As shown, when the solar cells require DC transport, the through-slot 110 is connected to two radially opposite first receiving slots 220 (i.e., the two first receiving slots 220 are located on opposite sides of the flip shaft 100 in the radial direction). Thus, when the solar cells are transferred from the conveying mechanism to the first receiving slots 220, the solar cells can enter the first receiving slot 220 on the other side from one first receiving slot 220 via the through-slot 110. For example, in... Figure 5 In the view shown, taking the first receiving groove 220 on the left as the input side and the first receiving groove 220 on the right as the output side, the through groove 110 is connected to both the first receiving groove 220 on the left and the first receiving groove 220 on the right. The battery cell can enter the first receiving groove 220 on the right from the first receiving groove 220 on the left through the through groove 110, thereby realizing the DC transmission of the battery cell.

[0049] In some embodiments, along the conveying direction of the battery cell, i.e., along the radial direction of the flipping shaft 100, the size of the battery cell is larger than the diameter of the receiving unit 200, such that when one part of the battery cell is located in the first receiving groove 220, the other part of the battery cell is located on the conveying surface of the conveying mechanism. Through the conveying mechanism, the battery cell can be moved from one side of the first receiving groove 220 to the other side. Understandably, the multiple receiving blades 210 form a hollow cylindrical structure, the diameter of which is the diameter of the receiving unit 200. In other embodiments, the drive mechanism for driving the flipping shaft 100 of the flipping mechanism may be provided with a toggle part, which moves the battery cell from one side of the first receiving groove 220 to the other side.

[0050] See Figure 2As shown, during the flipping conveying process, since the through groove 110 and the first receiving groove 220 are not connected, the solar cells will not enter the through groove 110 from the first receiving groove 220. Taking the first receiving groove 220 on the left as the input side, by rotating the flipping mechanism 180 degrees clockwise around the central axis of the flipping shaft 100, the first receiving groove 220 on the left rotates clockwise to the right, thereby achieving the flipping process of the solar cells. With this setting, the flipping mechanism can accommodate both DC conveying and flipping conveying, thus adapting to the conveying needs of different manufacturing processes or different battery types, expanding the application scenarios of the flipping mechanism, improving its adaptability, and eliminating the need to add or replace it with a DC conveying mechanism, reducing the manufacturing cost and space occupied by the conveying device. At the same time, since there is no need to transfer the solar cells to other DC conveying mechanisms during DC conveying, the time spent transferring the solar cells can also be reduced, improving the conveying efficiency of the solar cells.

[0051] In the appendix Figure 7 In the illustrated embodiment, there is one through slot 110. In other embodiments, there may be multiple through slots 110, such as two through slots 110 arranged in a cross-shaped vertical distribution, and each through slot 110 can communicate with two radially opposite first receiving slots 220. Thus, when the first receiving slot 220 is not flush with the conveying surface of the conveying mechanism, the flipping mechanism can rotate a small angle to make the first receiving slot 220 flush with the conveying surface, achieving rapid alignment.

[0052] like Figure 1 As shown in the embodiment illustrated in the attached figure, there are two receiving units 200. The two receiving units 200 are distributed at intervals along the axial direction of the flip shaft 100. The positions of the receiving blades 210 on the two receiving units 200 are one-to-one, that is, the positions of the first receiving grooves 220 on the two receiving units 200 are one-to-one along the axial direction of the flip shaft 100. The two ends of the battery cell along the axial direction of the flip shaft 100 can be respectively attached to the receiving blades 210 of the two receiving units 200.

[0053] In other embodiments, the number of receiving units 200 can also be two or more. By setting multiple receiving units 200, the contact area between the flipping mechanism and the battery cell is increased, enhancing the support effect on the battery cell and thus improving the conveying stability of the battery cell. Of course, the number of receiving units 200 can also be one. Correspondingly, the dimension of the receiving blade 210 along the axial direction of the flipping axis 100 can be increased, that is, the thickness of the receiving blade 210 can be increased, so that the receiving blade 210 has a larger contact area with the battery cell, improving the support effect. The specific structural design of the first receiving groove 220 and the receiving blade 210 can be referred to the existing flipping mechanism, and will not be described in detail here.

[0054] See Figures 1 to 4 As shown, in one embodiment, the flipping mechanism further includes a blocking member 300 connected to the flipping shaft 100. During flipping conveying, at least a portion of the blocking member 300 is located between the through groove 110 and the first receiving groove 220 communicating with the through groove 110, i.e., the blocking member 300 blocks at least a portion of the through groove 110. By physically blocking the through groove 110 and the first receiving groove 220 with the blocking member 300, the battery cells cannot enter the through groove 110 from the first receiving groove 220, thereby enabling flipping conveying. In some embodiments, the blocking member 300 can be a sheet metal part.

[0055] See Figure 4 As shown, in one embodiment, the sealing member 300 is detachably connected to the flip shaft 100; see also Figure 2 and Figure 4 As shown, during the flipping conveyor operation, the sealing component 300 is connected to the flipping shaft 100, and the sealing component 300 physically blocks the through groove 110 from the first receiving groove 220. (See reference...) Figure 5 and Figure 7 As shown, when in DC conveying mode, the sealing member 300 is disconnected from the flip shaft 100, so that the through groove 110 is connected to the two first receiving grooves 220 radially distributed along the flip shaft 100.

[0056] In other embodiments, the blocking member 300 is slidably connected to the flipping shaft 100 along its axial direction. For example, the flipping shaft 100 is constructed with a groove extending along its own axial direction. Correspondingly, the blocking member 300 has a blocking position and a clearance position. The blocking member 300 can move within the groove along the axial direction of the flipping shaft 100 to switch between the blocking position and the clearance position. When the blocking member 300 is in the clearance position or the blocking position, the blocking member 300 and the flipping shaft 100 are locked by fasteners such as screws. When in the flipping conveying position, the blocking member 300 is in the blocking position. The blocking member 300 and the through groove 110 are radially distributed along the flipping shaft 100, that is, the blocking member 300 is located between the through groove 110 and the first receiving groove 220. When in DC transmission, the blocking component 300 is in a clearance position. The blocking component 300 and the through groove 110 are distributed at intervals along the axial direction of the flip shaft 100. That is, the blocking component 300 is not located between the through groove 110 and the first receiving groove 220, and does not cause physical obstruction between the through groove 110 and the first receiving groove 220, thereby enabling DC transmission.

[0057] See Figure 4As shown, in one embodiment, the sealing member 300 includes a sealing section 310 and a connecting section 320 distributed axially along the flipping shaft 100; the sealing section 310 is used to block at least a portion of the through groove 110, and the connecting section 320 is connected to the flipping shaft 100. For example, in the embodiment shown in the figures, the receiving unit 200 is sleeved on the flipping shaft 100, and the sealing member 300 is connected to the receiving unit 200, that is, the sealing member 300 is indirectly connected to the flipping shaft 100. The sealing section 310 and the connecting section 320 make the sealing member 300 present a T-shaped structure. The connecting section 320 is provided with a connecting part, such as a connecting hole, so that the sealing member 300 can be detachably connected to the receiving unit 200 by fasteners such as screws passing through the connecting section 320 and the receiving unit 200. By removing the sealing member 300, DC conveying can be realized; by installing the sealing member 300, flipping conveying can be realized.

[0058] See Figure 6 and Figure 7 As shown, in one embodiment, the receiving unit 200 further includes a fixing member 400 sleeved on the flip shaft 100, and multiple receiving blades 210 are respectively connected to the fixing member 400 along the circumference of the flip shaft 100. The fixing member 400 is constructed with a connecting groove 401, which connects the through groove 110 and the first receiving groove 220 during DC conveying. This enables DC conveying of the battery cells. During flip conveying, the blocking section 310 of the aforementioned blocking member 300 is located within the connecting groove 401, and the connecting section 320 is detachably connected to the fixing member 400.

[0059] See Figure 6 and Figure 7 As shown, in one embodiment, the fixing member 400 includes a fixing shaft 410, which is configured with a snap-fit ​​groove, so that a plurality of receiving blades 210 can be inserted into the snap-fit ​​groove. In other embodiments, the fixing shaft 410 and the receiving blades 210 may also be integrally formed or welded together, and there is no specific limitation.

[0060] See Figure 6 and Figure 7 As shown, in one embodiment, the fixing member 400 further includes a plurality of fixing blades 420 connected to the fixing shaft 410 and protruding radially outward along the fixing shaft 410; the plurality of fixing blades 420 are arranged circumferentially at intervals along the fixing shaft 410, and the gap between two adjacent fixing blades 420 forms a second receiving groove 430, the second receiving groove 430 and the first receiving groove 220 being distributed axially along the fixing shaft 410. In this way, on the one hand, the receiving blades 210 can be fixed by the fixing member 400, and on the other hand, the contact area between the receiving unit 200 and the battery cell can be increased, thereby improving the support effect on the battery cell and thus improving the transmission stability.

[0061] In other embodiments, besides using the sealing member 300 described above, at least one of the flipping shaft 100 and the fixing member 400 can rotate relative to the other about its own axis. For example, the fixing member 400 is sleeved on the flipping shaft 100, and the fixing member 400 can rotate relative to the flipping shaft 100 about its axis, so that the through groove 110 on the flipping shaft 100 is misaligned with the first receiving groove 220 (and the second receiving groove 430) of the receiving unit 200, thereby enabling flipping conveying. Alternatively, the through groove 110 can be connected to the first receiving groove 220 (and the second receiving groove 430) of the receiving unit 200, thereby enabling DC conveying. Of course, the flipping shaft 100 can also rotate relative to the fixing member 400 about its own axis, so that the through groove 110 is misaligned or aligned with the first receiving groove 220.

[0062] In some embodiments, the connecting groove 401 on the fixing member 400 has a radial dimension of 4 mm along the flip shaft 100, and the through groove 110 on the flip shaft 100 has a radial dimension of 8 mm. That is, a 4 mm connecting groove 401 can be cut on both radial sides of the fixing member 400, and an 8 mm through groove 110 can be bored and milled on the flip shaft 100.

[0063] Furthermore, one embodiment of this application also provides a conveying device, including a flipping mechanism for battery cells as described above and conveying mechanisms disposed on both radial sides of the flipping shaft. The conveying surface of the conveying mechanism and the central axis of the flipping shaft are located on the same horizontal plane, so that the battery cells can be transferred from the conveying mechanism to the first receiving groove of the flipping mechanism, or transferred from the first receiving groove to the conveying mechanism.

[0064] In some embodiments, the conveying mechanism may be a belt drive mechanism, which includes a conveyor belt, a first receiving trough, and a conveying surface of the conveyor belt that is flush with the conveying surface, so that the battery cells can be transferred from the conveying surface into the first receiving trough.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A flipping mechanism for battery cells, characterized in that, The flipping mechanism applied to the battery cells includes: A flip shaft (100) is provided with a through groove (110) that runs through its own radial direction. A receiving unit (200) is connected to the flipping shaft (100); the receiving unit (200) includes a plurality of receiving blades (210) distributed circumferentially along the flipping shaft (100), and the gap between two adjacent receiving blades (210) forms a first receiving groove (220). When in DC transmission mode, the through groove (110) is connected between two first receiving grooves (220) that are radially opposite to each other along the flipping shaft (100); When the material is being conveyed in a flipped manner, the through groove (110) is not connected to any of the first receiving grooves (220).

2. The flipping mechanism for battery cells according to claim 1, characterized in that, The flipping mechanism also includes a sealing element (300) connected to the flipping shaft (100). During the flipping conveying, at least a portion of the sealing member (300) is located between the through groove (110) and the first receiving groove (220) communicating with the through groove (110) to separate the through groove (110) from the first receiving groove (220).

3. The flipping mechanism for battery cells according to claim 2, characterized in that, The sealing component (300) is detachably connected to the flip shaft (100). During the flipping conveying process, the sealing member (300) and the flipping shaft (100) are in a connected state; When the DC transmission is in operation, the sealing member (300) is disconnected from the flip shaft (100).

4. The flipping mechanism for battery cells according to claim 2, characterized in that, The sealing element (300) is slidably connected to the flip shaft (100) along the axial direction of the flip shaft (100). During the flipping conveying process, the sealing element (300) is in the sealing position, and the sealing element (300) and the through groove (110) are radially distributed along the flipping shaft (100); When the DC transmission is in progress, the blocking member (300) is in a clearance position, and the blocking member (300) and the through groove (110) are distributed at an axial distance along the flipping shaft (100).

5. The flipping mechanism for battery cells according to claim 2, characterized in that, The sealing component (300) includes a sealing section (310) and a connecting section (320) distributed axially along the flipping shaft (100). The blocking section (310) is used to block at least a portion of the through groove (110), and the connecting section (320) is connected to the flip shaft (100).

6. The flipping mechanism for battery cells according to claim 1, characterized in that, The receiving unit (200) also includes a fixing member (400) sleeved on the flipping shaft (100), and the receiving blade (210) is fixedly connected to the fixing member (400). The fastener (400) is constructed with a connecting groove (401), which connects the through groove (110) and the first receiving groove (220) when the DC transmission is in operation.

7. The flipping mechanism for battery cells according to claim 6, characterized in that, The fastener (400) includes a fixed shaft (410) having a snap-fit ​​groove, to which the receiving blade (210) is connected.

8. The flipping mechanism for battery cells according to claim 7, characterized in that, The fastener (400) further includes a plurality of fastening blades (420) connected to the fastening shaft (410) and protruding outward along the radial direction of the fastening shaft (410). Multiple fixed blades (420) are arranged circumferentially along the fixed shaft (410), and the gap between two adjacent fixed blades (420) forms a second receiving groove (430). The second receiving groove (430) and the first receiving groove (220) are distributed axially along the fixed shaft (410).

9. The flipping mechanism for battery cells according to claim 6, characterized in that, At least one of the flipping shaft (100) and the fixing member (400) is rotatable relative to the other about its own axis, so that the through groove (110) is offset from or connected to the first receiving groove (220).

10. A conveying device, characterized in that, It includes a flipping mechanism for the battery cell as described in any one of claims 1 to 9, and a conveying mechanism disposed on both radial sides of the flipping shaft (100).

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