Battery cell transfer device and battery cell assembly production line
The cell transfer device, controlled by a transfer mechanism and non-contact sensors, solves the problem of overvoltage damage during cell clamping, achieves safe fixation and stability of the cells during the transfer process, and improves production safety.
Patent Information
- Application Number
- CN202520270380.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-19
AI Technical Summary
In the existing technology, the cylinder-driven gripper is prone to excessive squeezing when gripping the battery cell, which can damage the battery cell and pose a safety hazard. In addition, the pressure sensor has low accuracy, which affects production safety.
A transfer mechanism is adopted, including a first plate and a second plate. The battery cell is adsorbed by an adsorption structure. The second plate can be moved to an auxiliary position to prevent the battery cell from tipping over. A non-contact sensor is used to detect a preset distance and control the movement of the second plate to avoid overvoltage damage.
It effectively reduces pressure damage to battery cells during transfer, improves the integrity of battery cells during pickup and transportation, and ensures production safety.
Smart Images
Figure CN223822851U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of battery technology, specifically to a cell transfer device and a cell assembly production line. Background Technology
[0002] LCTP (Large Cell to Pack) technology is an innovative design in the field of power batteries. Its core is to directly integrate large-size cells into the battery pack by eliminating or simplifying the traditional battery module structure, thereby improving energy density, reducing costs and optimizing space utilization.
[0003] During the production process, battery cells need to be clamped and stacked. In related technologies, factories use cylinders as the driving source and grippers to clamp the battery cells. During clamping, it is necessary to prevent the blue film of the battery cell from being squeezed and to prevent the battery cell from being damaged by excessive compression. Therefore, pressure sensors are installed on the grippers. However, since the pressure sensors need to contact the surface of the object to provide pressure feedback and have low accuracy, sometimes the grippers may over-clamp the battery cell due to fluctuations in the factory's air pressure, causing damage, leakage, or even fire, which seriously affects production safety. Utility Model Content
[0004] The purpose of this disclosure is to provide a cell transfer device and a cell assembly line that can reduce pressure damage to the cells during the cell transfer process, thereby at least partially solving the above-mentioned technical problems.
[0005] To achieve the above objectives, according to a first aspect of this disclosure, a battery cell transfer device is provided, comprising a transfer mechanism, the transfer mechanism including a first plate and a second plate arranged vertically opposite each other in a horizontal direction, the first plate being adapted to contact a first side of the battery cell, the first plate being provided with an adsorption structure for adsorbing the battery cell, and the second plate being movable toward a second side of the battery cell opposite to the first side to be in an auxiliary position, wherein in the auxiliary position, there is a preset distance between the second plate and the second side of the battery cell or the first plate.
[0006] Optionally, the second plate has a first surface facing the first plate or the battery cell, and in the auxiliary position, the distance between the first surface and the second side of the battery cell is the preset distance, which is greater than or equal to zero.
[0007] Optionally, the cell transfer device further includes a control mechanism for detecting and / or controlling the movement of the second plate to the auxiliary position.
[0008] Optionally, the control mechanism includes a first sensor disposed on the second plate, the first sensor being used to detect the preset distance.
[0009] Optionally, the second plate has a first surface facing the first plate or the battery cell. In the auxiliary position, the distance between the first surface and the battery cell is the preset distance. The first sensor is located on the side of the first surface away from the battery cell. The distance between the first sensor and the first surface is the first distance. The distance between the first sensor and the second side of the battery cell is the second distance. The second distance is greater than or equal to the first distance.
[0010] Optionally, at the auxiliary position, the ratio of the second distance to the first distance is t, where 1 ≤ t ≤ 1.1.
[0011] Optionally, the second plate has a mounting hole recessed into the first surface, and the first sensor is disposed within the mounting hole.
[0012] Optionally, the cell transfer device further includes a base, the first plate being fixed to or movably connected to the base, the second plate being movably connected to the base, and the control mechanism further including a controller, a second sensor, and a drive unit. The second sensor is used to detect the position of the first plate relative to a first side of the cell, the controller is signal-connected to the first sensor, the second sensor, and the drive unit, and the drive unit drives the second plate to move relative to the base.
[0013] Optionally, the cell transfer device further includes a limiting member, which is provided on at least one of the second plate and the first plate, and the limiting member is adapted to limit the distance between the second plate and the first plate when contacting the other of the second plate and the first plate.
[0014] Optionally, the limiting member includes a limiting rod connected to the side of the second plate near the first plate, the length of the limiting rod being less than or equal to the distance between the first side of the battery cell and the second side of the battery cell.
[0015] Optionally, the adsorption structure includes a conduit formed on the first plate and / or connected to the first plate, the conduit having an adsorption port facing the battery cell for adsorbing the battery cell.
[0016] According to a second aspect of this disclosure, a battery cell assembly production line is provided, including the aforementioned battery cell transfer device.
[0017] Optionally, the battery cell assembly production line further includes a conveying mechanism and a driving mechanism. The conveying mechanism is used to convey the battery cell to a transfer position, and the driving mechanism is used to drive the substrate to move so that the first plate contacts the first side of the battery cell.
[0018] Through the above technical solution, the battery cell can be fixed to the first plate under the action of the adsorption structure, thereby avoiding overvoltage damage to the battery cell caused by clamping and fixing in related technologies, and ensuring the integrity of the battery cell during pickup and transportation. Specifically, the first plate can first contact the first side of the battery cell, and then the second plate can move toward the second side of the battery cell to a support position. In the support position, there is a preset distance between the second plate and the second side of the battery cell, so as to prevent the battery cell from tipping over when the adsorption structure acts on the battery cell, ensuring that the adsorption structure can adsorb and act on the first side of the battery cell, and preventing the battery cell from falling off the first plate.
[0019] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description
[0020] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:
[0021] Figure 1 This is a schematic diagram of the overall structure of the cell transfer device provided in an exemplary embodiment of this disclosure, wherein the second plate is located in an auxiliary position;
[0022] Figure 2 This is a schematic diagram of the overall structure of the battery cell transfer device provided in an exemplary embodiment of the present disclosure, wherein the first plate is in contact with the first side of the battery cell;
[0023] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.
[0024] Explanation of reference numerals in the attached figures
[0025] 1. Transfer mechanism; 11. First plate; 12. Second plate; 121. First surface; 122. Mounting hole; 2. Battery cell; 21. First side; 22. Second side; 3. Adsorption structure; 31. Pipeline; 311. Adsorption port; 4. Control mechanism; 41. First sensor; 5. Substrate; 6. Limiting component; 61. Limiting rod; 7. Conveying mechanism. Detailed Implementation
[0026] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.
[0027] In this disclosure, unless otherwise stated, "inner" and "outer" refer to the interior and exterior of the outline of the corresponding component; "far" and "near" refer to the distance of the corresponding component relative to another component in terms of spatial position. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance. When the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0028] According to the first aspect of this disclosure, reference to Figures 1 to 3 As shown, this disclosure provides a battery cell transfer device, including a transfer mechanism 1. The transfer mechanism 1 includes a first plate 11 and a second plate 12 that are arranged vertically opposite each other in the horizontal direction. The first plate 11 is adapted to contact the first side 21 of the battery cell 2. An adsorption structure 3 is provided on the first plate 11 for adsorbing the battery cell 2. The second plate 12 can move toward the second side 22 of the battery cell 2 that is opposite to the first side 21 to be in an auxiliary position. In the auxiliary position, there is a preset distance between the second plate 12 and the second side 22 of the battery cell 2 or the first plate 11.
[0029] Through the above technical solution, the battery cell 2 can be fixed to the first plate 11 under the action of the adsorption structure 3, so as to avoid the overvoltage damage to the battery cell 2 caused by clamping and fixing the battery cell 2 in related technologies, and ensure the integrity of the battery cell 2 during the picking and transportation process. Specifically, the first plate 11 can first contact the first side 21 of the battery cell 2, and then the second plate 12 can move toward the second side 22 of the battery cell 2 to be in an auxiliary position. In the auxiliary position, there is a preset distance between the second plate 12 and the second side 22 of the battery cell 2, so as to stop the battery cell 2 from tipping over when the adsorption structure 3 acts on the battery cell 2, and ensure that the adsorption structure 3 can adsorb and act on the first side 21 of the battery cell 2, preventing the battery cell 2 from falling off the first plate 11.
[0030] Among them, reference Figure 2 As shown, the battery cell 2 can be moved to the transfer position by a conveying mechanism 7 (described below), such as a conveyor belt or a track trolley. During this conveying process, sponge or foam structures can be temporarily placed on both sides of the battery cell 2 for simple support to improve safety during the transfer process. Then, at least one of the battery cell transfer device and the first plate 11 can be moved so that the first plate 11 contacts the first side 21 of the battery cell 2.
[0031] Subsequently, the second plate 12 can move toward the second side 22 of the battery cell 2 to be in an auxiliary position. Then, the adsorption structure 3 opens to act on the first side 21 of the battery cell 2. It should be noted that, limited by the posture of the battery cell 2 when it is in the transfer position, the size of the battery cell 2, and the distance between the first plate 11 and the second plate 12 and the conveying mechanism 7, the position of the adsorption structure 3 is not at the center of gravity of the battery cell 2. Therefore, if there is a gap between the adsorption structure 3 and the first side 21 of the battery cell 2 during the adsorption process, the adsorption force on the battery cell 2 is relatively small in the initial state when the adsorption structure 3 is opened. After the battery cell 2 is subjected to a small adsorption force, it may shake, and the battery cell 2 may tip over, causing the adsorption structure 3 to fail to fix the battery cell 2 to the first plate 11. For example, refer to Figure 1 and Figure 2 As shown in the diagram, the adsorption structure 3 acts on the upper half of the first side 21 of the battery cell 2. At this time, the upper half of the battery cell 2 is acted upon by the adsorption structure 3, while the lower half of the battery cell 2 is acted upon by the sponge structure or foam structure. Without the second plate 12, when the adsorption force is small, the upper half of the battery cell 2 may tilt away from the first plate 11, causing the battery cell 2 to detach from the first plate 11. Therefore, by providing the second plate 12, which can be moved to an auxiliary position, the tilting of the battery cell 2 can be prevented when the adsorption structure 3 acts on the first side 21 of the battery cell 2. When the adsorption force becomes normal, the adsorption structure 3 adsorbs the battery cell 2 onto the first plate 11, thereby ensuring the adsorption and fixation effect of the adsorption structure 3 on the battery cell 2.
[0032] In some embodiments, reference Figures 1 to 3 As shown, the second plate 12 has a first surface 121 facing the first plate 11 or the battery cell 2. In an auxiliary position, the distance between the first surface 121 and the second side surface 22 of the battery cell 2 is a preset distance, which is greater than or equal to zero. Thus, referring to... Figure 1 As shown, the first surface 121 of the second plate 12 can contact the second side surface 22 of the battery cell 2, or refer to Figure 2 and Figure 3 As shown, the first surface 121 of the second plate 12 can have a certain gap with the second side surface 22 of the battery cell 2. It should be noted that during the process of transferring the battery cell 2 through the battery cell transfer device, there is no interaction force between the second plate 12 and the battery cell 2 or only a very small interaction force, so that the second plate 12 will not squeeze the battery cell 2.
[0033] The distance between the first surface 121 of the second plate 12 and the second side 22 of the battery cell 2 is a preset distance, which facilitates the determination of the preset distance. That is, compared with the distance between the first surface 121 of the second plate 12 and the side of the first plate 11 closest to the second plate 12, the preset distance can reduce the influence of the distance between the first side 21 and the second side 22 of the battery cell 2 on the preset distance, improve the accuracy of the preset distance determination, improve the accuracy of the second plate 12 when it is in the auxiliary position, and ensure the integrity and stability of the battery cell 2 during the transfer process.
[0034] It is understood that the preset distance is affected by factors such as the weight of the battery cell 2 and the force of the adsorption structure 3, and can be determined through experiments and simulations. However, the force of the adsorption structure 3 should not be too large in order to reduce the possibility of damage to the first side 21 of the battery cell 2 or to the battery cell 2 as a whole. This disclosure does not specifically limit the range of this preset distance.
[0035] In some embodiments, reference Figure 1 and Figure 2 As shown, the cell transfer device may further include a control mechanism 4, which is used to detect and / or control the movement of the second plate 12 to an auxiliary position. Exemplarily, the control mechanism can control the movement of the second plate 12 by detecting a preset distance. Specifically, when the distance between the first surface 121 of the second plate 12 and the second side surface 22 of the cell 2 is greater than the preset distance, the control mechanism 4 will not restrict the movement of the second plate 12, and the second plate 12 can continue to move toward the cell 2. When the distance between the first surface 121 of the second plate 12 and the second side surface 22 of the cell 2 is equal to the preset distance, the control mechanism 4 stops the second plate 12 so that the second plate 12 is in the auxiliary position.
[0036] The control mechanism 4 may include a first sensor 41 disposed on the second plate 12, which is used to detect a preset distance. Thus, the control mechanism 4 can use the first sensor 41 to detect the distance between the first surface 121 of the second plate 12 and the second side surface 22 of the battery cell 2, and compare it with the preset distance. For example, the first sensor 41 can be configured as an infrared ranging sensor, which utilizes the principle that the intensity of reflection of infrared signals varies depending on the distance to an obstacle to detect the distance. The infrared ranging sensor has a pair of infrared signal emitting and receiving diodes, which can be disposed on the second plate 12. The emitting diode emits an infrared signal of a specific frequency, and the receiving diode receives the infrared signal of this frequency. Then, the distance between the first surface 121 of the second plate 12 and the second side surface 22 of the battery cell 2 is detected based on the reflection intensity. Furthermore, the first sensor 41 can also be configured as an ultrasonic sensor or a laser ranging sensor, etc., and this disclosure is not limited thereto.
[0037] Understandably, the aforementioned first sensor 41 can achieve non-contact ranging through photoelectric signal conversion, thus avoiding the problem of squeezing the battery cell 2 that requires using pressure sensors for distance detection in related technologies, and better protecting the battery cell 2. The aforementioned first sensor 41 achieves non-contact ranging through photoelectric signal conversion, which can ensure a faster response speed, so that the second plate 12 can stop at the auxiliary position.
[0038] In addition, the cell transfer device may also include a base 5, a first plate 11 fixed to or movably connected to the base 5, a second plate 12 movably connected to the base 5, and a control mechanism 4 further including a controller (not shown in the figure), a second sensor (not shown in the figure), and a drive (not shown in the figure). The second sensor is used to detect the position of the first plate 11 relative to the first side of the cell. The controller is signal-connected to the first sensor 41, the second sensor, and the drive, respectively. The drive drives the second plate 12 to move relative to the base 5.
[0039] In this way, the first plate 11 can move relative to the base 5, or the base 5 can drive the first plate 11 to contact the first side 21 of the cell 2. The second sensor can detect whether the first plate 11 is in contact with the cell 2. Then, the first sensor 41 detects the distance between the first surface 121 of the second plate 12 and the second side 22 of the cell 2. When the distance between the first surface 121 of the second plate 12 and the second side 22 of the cell 2 is greater than a preset distance, the driving member can drive the second plate 12 to move toward the cell 2. When the distance between the first surface 121 of the second plate 12 and the second side 22 of the cell 2 is equal to the preset distance, the controller signal is transmitted to the driving member to stop the second plate 12. At this time, the second plate 12 is in an auxiliary position.
[0040] The driving component can be any one of, for example, a hydraulic cylinder, a pneumatic cylinder, a linear actuator, or a synchronous belt drive / screw and nut drive mechanism driven by a motor. The driving component can drive the second plate 12, which is slidably connected to the base 5 via a slide rail slider structure. Furthermore, the controller can be, for example, a microcontroller or a PLC; this disclosure does not specifically limit the controller and the driving component. Additionally, when the first plate 11 is movably connected to the base 5, the first plate 11 can be driven by another driving component, which can also be any one of, for example, a hydraulic cylinder, a pneumatic cylinder, a linear actuator, or a synchronous belt drive / screw and nut drive mechanism driven by a motor; this disclosure does not specifically limit this either.
[0041] The second sensor can be any suitable type of sensor. For example, the second sensor can be the same type of sensor as the first sensor 41, or the second sensor can be a pressure sensor. Since there is no need to clamp the battery cell 2, it will not lead to the situation of excessive clamping as in the prior art. This disclosure does not specifically limit the type of the second sensor.
[0042] In some embodiments, reference Figure 1 and Figure 2 As shown, the first sensor 41 is located on the side of the first surface 121 away from the battery cell 2. The distance between the first sensor 41 and the first surface 121 is a first distance D1. When the second plate 12 is in the auxiliary position, the distance between the first sensor 41 and the second side surface 22 of the battery cell 2 is a second distance D2, wherein the second distance D2 is greater than or equal to the first distance D1. Thus, the preset distance is the difference between the second distance D2 and the first distance D1, that is, the preset distance is greater than or equal to zero. In this way, the first sensor 41 will not excessively affect the measurement between the first surface 121 of the second plate 12 and the second side surface 22 of the battery cell 2 due to its own installation error.
[0043] For example, refer to Figure 1 and Figure 2 As shown, the second plate 12 may have a mounting hole 122 recessed into the first surface 121. The first sensor 41 can be disposed within the mounting hole 122 to protect the first sensor 41 and reduce the possibility of damage to the first sensor 41. The size of the mounting hole 122 can be determined according to the size of the first sensor 41; for example, the diameter of the mounting hole 122 may be 5 mm and the depth may be 3 mm. Furthermore, in some other possible alternative embodiments not shown in the figures, the first sensor 41 may be connected to the top or bottom of the second plate 12, and this disclosure is not limited thereto.
[0044] In some embodiments, reference Figure 1 and Figure 2 As shown, when the second plate 12 is in the auxiliary position, the ratio of the second distance D2 to the first distance D1 is t, where 1≤t≤1.1. In this way, the second plate 12 can prevent the battery cell 2 from tipping over when the adsorption structure 3 acts on the battery cell 2.
[0045] For example, 0.5mm≤D1≤1.5mm, 0.6mm≤D2≤1.6mm. It is understood that the above distance range can be adaptively changed according to actual usage requirements, such as the forming tolerance of the above mounting hole 122 and the installation error of the first sensor 41, etc. This disclosure is not limited thereto.
[0046] In some embodiments, reference Figure 1 and Figure 2As shown, the cell transfer device may further include a limiting member 6. The limiting member 6 is provided on at least one of the second plate 12 and the first plate 11. The limiting member 6 is adapted to limit the distance between the second plate 12 and the first plate 11 when contacting the other of the second plate 12 and the first plate 11. In this way, the limiting member 6 provides mechanical restraint on the second plate 12, reducing the possibility of damage to the cell 2 due to overpressure clamping action of the second plate 12 and the first plate 11.
[0047] This disclosure exemplarily provides a limiting member 6 on the second plate 12. The limiting member 6 can adopt any suitable structural form, for example, referring to... Figure 1 and Figure 2 As shown, the limiting member 6 may include a limiting rod 61 connected to the side of the second plate 12 near the first plate 11, wherein the length of the limiting rod 61 is less than or equal to the distance between the first side 21 and the second side 22 of the battery cell 2. Thus, the limiting rod 61 can stop the second plate 12 from continuing to move towards the first plate 11 after being pressed against the battery cell 2, reducing the possibility of overvoltage damage to the battery cell 2 or causing a safety accident. It is understood that the limiting rod 61 may also be connected to the side of the first plate 11 near the second plate 12; of course, limiting rods 61 may be provided on both the side of the second plate 12 near the first plate 11 and the side of the first plate 11 near the second plate 12. Furthermore, in some other possible alternative embodiments not shown in the figures, the limiting member 6 may also include a stop provided on the base 5 to stop the movement of the second plate 12 towards the first plate 11; this disclosure is not limited to this.
[0048] In some embodiments, reference Figure 1 and Figure 2 As shown, the adsorption structure 3 may include a conduit 31 formed on the first plate 11 and / or connected to the first plate 11, wherein the conduit 31 has an adsorption port 311 facing the battery cell 2 for adsorbing the battery cell 2. Thus, when the first plate 11 contacts the first side 21 of the battery cell 2, a vacuum environment can be created in the conduit 31 using, for example, a vacuum pump (not shown), to adsorb and fix the battery cell 2 to the first plate 11. At this time, the second plate 12 is in an auxiliary position to prevent the battery cell 2 from tipping over, so that the first side 21 of the battery cell 2 is adhered to and covered by the adsorption port 311, ensuring the stability of the battery cell 2. It is understood that the number of adsorption ports 311 can be one or more, and this disclosure does not specifically limit this.
[0049] According to a second aspect of this disclosure, a cell 2 assembly line is provided, including the aforementioned cell transfer device. This cell 2 assembly line can transfer and stack the cell 2 into a battery pack via the cell transfer device, thereby achieving direct cell 2 assembly, which improves the energy density of the battery pack, reduces costs, and optimizes space utilization. Furthermore, this cell 2 assembly line possesses all the beneficial effects of the aforementioned cell transfer device, which will not be elaborated upon further herein.
[0050] In some embodiments, reference Figure 2 As shown, the battery cell 2 assembly line also includes a conveying mechanism 7 and a driving mechanism (not shown in the figure). The conveying mechanism 7 is used to convey the battery cell 2 to the transfer position, and the driving mechanism is used to drive the base 5 to move so that the first plate 11 contacts the first side 21 of the battery cell 2. For example, the conveying mechanism can be, for example, a conveyor belt or an RGV trolley, and the driving mechanism can be, for example, any one of a robot arm, hydraulic cylinder, pneumatic cylinder, linear drive, or a synchronous belt drive mechanism / screw and nut drive mechanism driven by a motor. This disclosure is not limited thereto.
[0051] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.
[0052] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.
[0053] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.
Claims
1. A battery cell transfer device, characterized in that, The device includes a transfer mechanism comprising a first plate and a second plate arranged vertically opposite each other in a horizontal direction. The first plate is adapted to contact a first side of the battery cell and has an adsorption structure for adsorbing the battery cell. The second plate is movable toward a second side of the battery cell opposite to the first side to be in an auxiliary position. In the auxiliary position, there is a preset distance between the second plate and the second side of the battery cell or the first plate.
2. The cell transfer device according to claim 1, characterized in that, The second plate has a first surface facing the first plate or the battery cell. In the auxiliary position, the distance between the first surface and the second side of the battery cell is the preset distance, which is greater than or equal to zero.
3. The cell transfer device according to claim 1, characterized in that, The cell transfer device further includes a control mechanism for detecting and / or controlling the movement of the second plate to the auxiliary position.
4. The cell transfer device according to claim 3, characterized in that, The control mechanism includes a first sensor disposed on the second plate, the first sensor being used to detect the preset distance.
5. The cell transfer device according to claim 4, characterized in that, The second plate has a first surface facing the first plate or the battery cell. In the auxiliary position, the distance between the first surface and the battery cell is the preset distance. The first sensor is located on the side of the first surface away from the battery cell. The distance between the first sensor and the first surface is the first distance. The distance between the first sensor and the second side of the battery cell is the second distance. The second distance is greater than or equal to the first distance.
6. The cell transfer device according to claim 5, characterized in that, At the auxiliary position, the ratio of the second distance to the first distance is t, where 1 ≤ t ≤ 1.
1.
7. The cell transfer device according to claim 5, characterized in that, The second plate has a mounting hole recessed into the first surface, and the first sensor is disposed in the mounting hole.
8. The cell transfer device according to claim 4, characterized in that, The cell transfer device further includes a base, the first plate is fixed to or movably connected to the base, the second plate is movably connected to the base, the control mechanism further includes a controller, a second sensor and a drive, the second sensor is used to detect the position of the first plate relative to a first side of the cell, the controller is signal-connected to the first sensor, the second sensor and the drive, and the drive drives the second plate to move relative to the base.
9. The cell transfer device according to claim 1, characterized in that, The cell transfer device further includes a limiting member, which is provided on at least one of the second plate and the first plate. The limiting member is adapted to limit the distance between the second plate and the first plate when contacting the other of the second plate and the first plate.
10. The cell transfer device according to claim 9, characterized in that, The limiting member includes a limiting rod connected to the side of the second plate near the first plate, and the length of the limiting rod is less than or equal to the distance between the first side of the battery cell and the second side of the battery cell.
11. The cell transfer device according to claim 1, characterized in that, The adsorption structure includes a conduit formed on the first plate and / or connected to the first plate, the conduit having an adsorption port facing the battery cell for adsorbing the battery cell.
12. A battery cell assembly production line, characterized in that, Includes the cell transfer device according to any one of claims 1-11.
13. The cell assembly production line according to claim 12, characterized in that, The battery cell assembly production line also includes a conveying mechanism and a driving mechanism. The conveying mechanism is used to convey the battery cell to a transfer position, and the driving mechanism is used to drive the substrate to move so that the first plate contacts the first side of the battery cell.