Battery cell formation equipment

Abstract

The present invention relates to a battery cell formation equipment, wherein the battery cell anti-stuck device includes a rebound mechanism, the rebound mechanism includes a guide post, a fixed plate, a spring, a support plate and an insulating plate, the support plate and the insulating plate are stacked, one end of the guide post can be movably inserted into the support plate and the insulating plate, and the other end is fixedly connected to the fixed plate, the spring is sleeved outside the guide post and located between the support plate and the fixed plate; the fixed plate is used to fix the battery cell anti-stuck device on the battery cell formation equipment; the insulating plate is located on the side of the support plate away from the fixed plate, and is used to abut the battery cell and compress the spring through the support plate, and the support plate is used to provide strength support; the spring is used to provide a rebound force at the end of formation, so that the battery cell is separated from the secondary positioning block. In the battery cell formation equipment of the present invention, when the battery cell formation is completed, the battery cell anti-stuck device can push the battery cell to fall together with the tray to prevent the battery cell from being stuck in the secondary positioning block.

Description

Technical Field

[0001] The present application relates to the technical field of battery cell formation equipment, and in particular to a battery cell formation equipment. Background Art

[0002] In the current square aluminum shell battery cell formation process, the precise positioning of the battery cell is particularly important in the multi-cell multi-channel production process due to the particularity of the negative pressure system. However, precise positioning also brings some risks. For example, the current square aluminum shell battery cell formation equipment is generally equipped with a secondary positioning block to more accurately position the battery cell. However, the battery cell may swell during the formation and charging and discharging process, or the incoming battery cell may be oversized, which may cause the battery cell to have an interference fit with the secondary positioning block, making it impossible for the battery cell to fall normally with the tray after the formation is completed.

[0003] The existing battery cell formation equipment only has a secondary positioning fixture, which reduces the occurrence of interference fit by adjusting the tolerance between the fixture and the battery cell. However, under special circumstances, battery cell swelling cannot be predicted or avoided. At the same time, personnel cannot be stationed and inspected in the formation equipment area, and the formed batteries are all charged batteries. If the battery cell cannot be disengaged from the secondary positioning block normally, on the one hand, it will affect the next battery cell from cooperating with the secondary positioning block for formation processing, affecting production efficiency; on the other hand, during or after the tray is removed, there is a risk that the stuck battery cell will fall off and cause a short circuit to cause a safety accident, posing a major safety hazard. Summary of the invention

[0004] Based on this, it is necessary to provide a battery cell formation equipment to solve the above problems.

[0005] The battery cell anti-jamming device of the present invention comprises a rebound mechanism, which comprises a guide column, a fixed plate, a spring, a support plate and an insulating plate, wherein the support plate and the insulating plate are stacked, one end of the guide column can be movably inserted into the support plate and the insulating plate, and the other end is fixedly connected to the fixed plate, the spring is sleeved outside the guide column and located between the support plate and the fixed plate; the fixed plate is used to fix the battery cell anti-jamming device on the battery cell formation equipment; the insulating plate is located on the side of the support plate away from the fixed plate, and is used to abut the battery cell and compress the spring through the support plate, and the support plate is used to provide strength support; the spring is used to provide a rebound force at the end of formation, so that the battery cell is separated from the secondary positioning block.

[0006] In one embodiment, the battery cell anti-stuck device also includes a sensing component, which includes a sensing transmitter and a sensing receiver. The sensing transmitter and the sensing receiver are respectively installed at opposite ends of a single-row battery cell channel of the battery cell formation equipment, and are used to detect whether there are battery cells stuck in the secondary positioning block in the single-row battery cell channel after the formation is completed.

[0007] In one embodiment, the sensing component also includes a sensor mounting plate, which includes a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate are respectively arranged at opposite ends of a single-row battery cell channel of a battery cell formation device, one end of the first mounting plate is fixedly connected to the battery cell formation device, and the other end is used to fix an induction transmitter; one end of the second mounting plate is fixedly connected to the battery cell formation device, and the other end is used to fix an induction receiver.

[0008] In one embodiment, the battery cell anti-stuck device also includes a central computer and a host computer, the sensing component is communicatively connected to the host computer; one end of the central computer is electrically connected to the positive probe and the negative probe, and the other end of the central computer is communicatively connected to the host computer; the positive probe is used to be electrically connected to the positive pole of the battery cell, and the negative probe is used to be electrically connected to the negative pole of the battery cell; the central computer is used to detect the electrical signal between the positive probe and the negative probe after the formation is completed, and send the detection result to the host computer; the host computer is used to determine the specific position of the battery cell according to the electrical signal.

[0009] In one embodiment, the battery cell anti-jamming device further includes an alarm, which is communicatively connected to the host computer and is used to generate an alarm prompt message.

[0010] The present invention also proposes a battery cell formation equipment, comprising a needle bed structure, a tray, a positive probe module, a negative probe module, a negative pressure module, a temperature sensing module, a secondary positioning block and any of the above-mentioned battery cell anti-stuck devices, the needle bed structure comprising a lifting mechanism, a module mounting plate and a driving component, the positive probe module, the negative probe module, the negative pressure module and the temperature sensing module are all arranged on the module mounting plate, the secondary positioning block is arranged on the positive probe module, the negative probe module, the negative pressure module, the temperature sensing module or the module mounting plate, and the tray is detachably arranged on the lifting mechanism; the driving component is used to drive the lifting mechanism and the tray to move so as to lift the battery cell in the tray from a first position to a second position; when the battery cell is in the second position, the battery cell is stuck in the secondary positioning block, the positive probe module, the negative probe module, the negative pressure module, the temperature sensing module and the battery cell anti-stuck device are all in contact with the battery cell, and the spring in the rebound mechanism is compressed.

[0011] In one embodiment, the tray has at least one column of battery cell channels, each column of battery cell channels has at least one clamping position, and one clamping position is used to accommodate one battery cell; each column of battery cell channels corresponds to one positive probe module, one negative probe module, one negative pressure module, one temperature sensing module and at least one rebound mechanism; the positive probe module includes at least one positive probe, the negative probe module includes at least one negative probe, and the positive probe and the negative probe are used to charge and discharge the battery cell; the temperature sensing module includes at least one temperature sensing probe, and the temperature sensing probe is used to test the surface temperature of the battery cell; the negative pressure module has at least one negative pressure nozzle, and the negative pressure nozzle is used to draw negative pressure to the battery cell; each of the clamping positions corresponds to one positive probe, one negative probe, one temperature sensing probe and one negative pressure nozzle.

[0012] In one embodiment, the negative pressure nozzle and the temperature sensing probe are both provided with elastic structures, and the elastic structures are used to make the negative pressure module and the temperature sensing module elastically abut against the battery core.

[0013] In one embodiment, the positive probe module, the negative probe module, the negative pressure module and the temperature sensing module are arranged side by side, the fixing plate of the battery cell anti-stuck device is fixedly arranged between two adjacent modules among the positive probe module, the negative probe module, the negative pressure module and the temperature sensing module, and the length direction of the support plate and the insulating plate is consistent with the length direction of the single-row battery cell channel.

[0014] In one embodiment, the negative pressure module and the temperature sensing module are arranged between the positive probe module and the negative probe module; the temperature sensing module is adjacent to the positive probe module or the negative probe module, and a gap is left between the temperature sensing module and the positive probe module or the negative probe module, one end of the fixing plate is fixed to one end of the temperature sensing module away from the module mounting plate, and the other end is fixed to one end of the positive probe module or the negative probe module away from the module mounting plate.

[0015] The battery cell forming equipment of the present invention has the following beneficial effects:

[0016] The battery cell forming equipment of the present invention reasonably arranges the structures of the guide pillars, the fixing plates, the springs, the support plates and the insulating plates in the rebound mechanism and the connection relationship between them. When the battery cell is located at the forming station, the battery cell is stuck in the secondary positioning block, the insulating plate abuts the battery cell and compresses the spring through the support plate. When the battery cell formation is completed, the spring can provide a rebound force to make the battery cell detach from the secondary positioning block, which is convenient for battery cell unloading, thereby preventing the battery cell from falling during the process of taking out the tray and causing a superimposed short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A schematic diagram of the three-dimensional structure of a battery cell provided in one embodiment of the present invention.

[0018] Figure 2 A schematic diagram of the structure of a battery cell formation device in the XOZ plane provided by one embodiment of the present invention.

[0019] Figure 3 A schematic structural diagram of a tray in the XOY plane provided by an embodiment of the present invention.

[0020] Figure 4 For battery cell formation equipment Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0021] Figure 5 For battery cell formation equipment Figure 2 Schematic diagram of the enlarged structure of area B in the middle.

[0022] Figure 6 A schematic diagram of the structure of a rebound mechanism in the YOZ plane provided by an embodiment of the present invention.

[0023] Figure 7 A schematic structural diagram of a rebound mechanism in the XOZ plane provided by an embodiment of the present invention.

[0024] Figure 8 A schematic structural diagram of a rebound mechanism in the YOZ plane provided by another embodiment of the present invention.

[0025] Fig. 9 A schematic diagram of the connection relationship between the intermediate computer, the upper computer, the sensing component and the battery cell in the battery cell anti-jamming device provided in another embodiment of the present invention.

[0026] Reference numerals:

[0027] Battery cell 1, first large surface 11, second large surface 12, first side surface 13, second side surface 14, bottom surface 15, top surface 16, positive electrode column 17, negative electrode column 18; battery cell formation equipment 10, needle bed structure 100, base 110, lifting mechanism 120, module mounting plate 130, support column 140, connecting member 150, driving member 160, tray 200, battery cell channel 210, clamping position 211, positive electrode probe module 300, positive electrode probe 310, negative electrode probe module 400, negative electrode probe Needle 410, negative pressure module 500, negative pressure nozzle 510, temperature sensing module 600, temperature sensing probe 610, gap 620, elastic structure 630; secondary positioning block 700, battery cell anti-stuck device 800, rebound mechanism 810, guide column 811, fixing plate 812, spring 813, support plate 814, insulating plate 815; sensing component 820, sensor mounting plate 821, sensing transmitter 822, first mounting plate 823, intermediate computer 830, upper computer 840, alarm 850. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0034] The present application proposes a battery cell forming device, wherein a battery cell anti-stuck device is arranged on the battery cell forming device. When the battery cell forming is completed, the battery cell anti-stuck device can push the battery cell to fall together with the tray to prevent the battery cell from being stuck in the secondary positioning block. In one embodiment, the structure of the battery cell is as follows: Figure 1 As shown, the battery cell 1 is a square aluminum shell battery cell, including a first large surface 11, a second large surface 12, a first side surface 13, a second side surface 14, a bottom surface 15 and a top surface 16, wherein the first large surface 11 is arranged opposite to the second large surface 12, the first side surface 13 is arranged opposite to the second side surface 14, the bottom surface 15 is arranged opposite to the top surface 16, and a positive electrode column 17 and a negative electrode column 18 are arranged on the top surface 16, the area of ​​the first large surface 11 or the second large surface 12 is greater than the area of ​​the first side surface 13, the second side surface 14, the bottom surface 15 or the top surface 16, and Figure 1 In the coordinate system shown, the X-axis, Y-axis and Z-axis are perpendicular to each other, the length of the battery cell 1 is along the X-axis direction, the height of the battery cell 1 is along the Z-axis direction, and the thickness of the battery cell 1 is along the Y-axis direction.

[0035] In one embodiment, the structure of the battery cell forming device 10 is as follows: Figure 2 , Figure 4 and Figure 5 As shown, Figure 2 is a schematic diagram of the structure of the battery cell formation device 10 in the XOZ plane, Figure 4 For the battery cell formation equipment 10 Figure 2 The enlarged structural diagram of the A area in the middle. Figure 5 For the battery cell formation equipment 10 Figure 2 Schematic diagram of the enlarged structure of area B. Figure 2 , Figure 4 and Figure 5 As shown, it includes a needle bed structure 100, a tray 200, a positive probe module 300, a negative probe module 400, a negative pressure module 500, a temperature sensing module 600, a secondary positioning block 700 and a battery cell anti-stuck device 800, the needle bed structure 100 includes a base 110, a lifting mechanism 120, a module mounting plate 130, a support column 140, a connecting member 150 and a driving member 160, the supporting column 140 is connected between the base 110 and the module mounting plate 130, and the driving member 160 is connected to the module mounting plate 130. 0 is fixedly connected, the connecting member 150 is connected between the driving rod of the driving member 160 and the lifting mechanism 120, the tray 200 is detachably arranged on the lifting mechanism 120, and the driving member 160 is used to drive the lifting mechanism 120 and the tray 200 to move, so as to lift the battery cell 1 in the tray 200 from the first position to the second position, wherein the first position is the loading position of the battery cell 1 and the unloading position after the formation is completed, and the second position is the position of the battery cell 1 when the formation is completed. The structure of the battery cell 1 at the first position is as follows: Figure 5 As shown, the structure of the battery cell 1 when it is in the second position is as follows Figure 4 shown.

[0036] in addition, Figure 2 Only the structure of the tray 200 in the XOZ plane can be shown. The structure of the tray 200 in the XOY plane is shown in FIG. Figure 3 As shown. Figure 2 and Figure 3 As shown, the tray 200 has four columns of battery cell channels 210, each column of battery cell channels 210 has eight clamping positions 211, one clamping position 211 is used to accommodate one battery cell 1, and in a single column of battery cell channels 210, the clamping positions 211 are arranged along the length direction of the battery cell channels 210, and the length direction of the battery cell channels 210 is consistent with the thickness direction of a single battery cell 1. Figure 2 , Figure 4 and Figure 5 As shown, each column of battery cell channels 210 corresponds to a positive probe module 300, a negative probe module 400, a negative pressure module 500, a temperature sensing module 600 and a battery cell anti-stuck device 800, that is, the number of positive probe modules 300, negative probe modules 400, negative pressure modules 500, temperature sensing modules 600 and battery cell anti-stuck devices 800 is the same as the number of columns of battery cell channels 210.

[0037] In the single-row battery cell channel 210, the positive electrode probe module 300 includes eight positive electrode probes 310, the negative electrode probe module 400 includes eight negative electrode probes 410, the negative pressure module 500 includes eight negative pressure nozzles 510, and the temperature sensing module 600 includes eight temperature sensing probes 610. The positive electrode probes 310, the negative electrode probes 410, the negative pressure nozzles 510, and the temperature sensing probes 610 are all arranged along the length direction of the single-row battery cell channel 210. One card position 211 corresponds to one positive electrode probe 310, one negative electrode probe 410, and one temperature sensing probe. The probe 610 and a negative pressure nozzle 510, that is, the number of positive probes 310, negative probes 410, temperature sensing probes 610 and negative pressure nozzles 510 is equal to the number of clamping positions 211 and battery cells 1. The positive probe 310 is used to electrically connect to the positive pole 17 of a single battery cell 1, and the negative probe 410 is used to electrically connect to the negative pole 18 of a single battery cell 1, thereby performing charge and discharge operations on the single battery cell 1; the temperature sensing probe 610 is used to test the surface temperature of a single battery cell 1; and the negative pressure nozzle 510 is used to draw negative pressure on a single battery cell 1.

[0038] In one embodiment, the battery cell anti-jamming device 800 includes a rebound mechanism 810, and the structure of the rebound mechanism 810 is as follows: Figure 6 and Figure 7 As shown, Figure 6 is a schematic diagram of the structure of the rebound mechanism 810 in the YOZ plane, Figure 7 FIG. 8 is a schematic diagram of the structure of the rebound mechanism 810 in the XOZ plane. The structure of the rebound mechanism 810 installed in the battery cell formation device 10 is as follows: Figure 2 , Figure 4 and Figure 5 As shown. Figure 6 As shown, the rebound mechanism 810 includes a guide column 811, a fixing plate 812, a spring 813, a support plate 814 and an insulating plate 815. The support plate 814 and the insulating plate 815 are stacked, and mounting holes (not shown in the figure) are provided in the support plate 814 and the insulating plate 815. One end of the guide column 811 can be movably inserted into the mounting hole, and the other end is fixedly connected to the fixing plate 812; the fixing plate 812 is used to fix the battery cell anti-stuck device 800 on the battery cell formation equipment 10; the insulating plate 815 is located on the side of the support plate 814 away from the fixing plate 812, and is used to abut the battery cell 1 and compress the spring 813 through the support plate 814. The support plate 814 is used to provide strength support. In a specific embodiment, the support plate 814 is a metal plate. An assembly consisting of a guide column 811, a fixing plate 812 and a spring 813 is provided at the opposite ends of the support plate 814 and the insulating plate 815. In each assembly, the spring 813 is sleeved outside the guide column 811 and located between the support plate 814 and the fixing plate 812. The spring 813 is used to provide a rebound force to enable the battery cell 1 to detach from the secondary positioning block 700.

[0039] like Figure 2 As shown, the positive probe module 300, the negative probe module 400, the negative pressure module 500 and the temperature sensing module 600 are all mounted on the module mounting plate 130, and the positive probe module 300, the negative probe module 400, the negative pressure module 500 and the temperature sensing module 600 are arranged in parallel. Figure 2 In the illustrated embodiment, the negative pressure module 500 and the temperature sensing module 600 are arranged between the positive electrode probe module 300 and the negative electrode probe module 400. The temperature sensing module 600 is adjacent to the negative electrode probe module 400, and a gap 620 is left between the temperature sensing module 600 and the negative electrode probe module 400. One end of the fixing plate 812 of the rebound mechanism 810 is fixed to the end of the temperature sensing module 600 away from the module mounting plate 130, and the other end is fixed to the end of the negative electrode probe module 400 away from the module mounting plate 130, so that the rebound mechanism 810 is installed between the temperature sensing module 600 and the negative electrode probe module 400. The length direction of the support plate 814 and the insulating plate 815 of the rebound mechanism 810 is consistent with the length direction of the single-row battery cell channel 210. When the battery cell 1 is in the second position, as shown in FIG. Figure 2 and Figure 4 As shown, the battery cell 1 is stuck in the secondary positioning block 700, and the positive probe module 300, the negative probe module 400, the negative pressure module 500, the temperature sensing module 600 and the insulating plate 815 of the rebound mechanism 810 are all in contact with the battery cell 1, and the spring 813 in the rebound mechanism 810 is compressed. The negative pressure nozzle 510 and the temperature sensing probe 610 are both provided with an elastic structure 630. When the battery cell 1 is located in the second position, the elastic structure 630 of the negative pressure module 500 and the temperature sensing module 600 makes the negative pressure module 500 and the temperature sensing module 600 elastically contact with the battery cell 1, so as to avoid a hard collision between the negative pressure module 500 and the temperature sensing module 600 and the battery cell 1.

[0040] In addition, it should be noted that Figure 2 and Figure 4 In the illustrated embodiment, the secondary positioning block 700 is disposed at one end of the positive probe module 300 and the negative probe module 400 away from the module mounting plate 130, and is used to better position the battery cell 1, so as to facilitate the positive probe module 300 and the negative probe module 400 to perform the formation operation on the battery cell 1. It is understandable that the present application does not limit the setting position of the secondary positioning block 700. In other embodiments, the secondary positioning block 700 can also be disposed on the negative pressure module 500, the temperature sensing module 600 or the module mounting plate 130, as long as the battery cell 1 can be accurately positioned when it is lifted to the second position.

[0041] When the formation is completed, the driving member 160 cancels the lifting force on the lifting mechanism 120, and the lifting mechanism 120 and the tray 200 fall downward under the action of gravity. The battery cell 1 falls downward with the tray 200 under the action of gravity and the rebound force of the spring 813 in the rebound mechanism 810. The rebound force of the spring 813 in the rebound mechanism 810 can overcome the clamping force of the secondary positioning block 700 on the battery cell 1, so that the battery cell 1 can fall down with the tray 200 and return to the first position after the formation is completed. Figure 5 As shown, it is convenient to cut out the battery cell 1.

[0042] In addition, it should be noted that Figure 2 In the illustrated embodiment, a rebound mechanism 810 is provided corresponding to each column of battery cell channels 210. And the rebound mechanism 810 is provided between the temperature sensing module 600 and the negative electrode probe module 400. It is understandable that the present application does not limit the number and setting position of the rebound mechanism 810 in the single-column battery cell channel 210. In other embodiments, each column of battery cell channels 210 may also correspond to more than two rebound mechanisms 810, and the rebound mechanism 810 may also be provided between any two adjacent modules of the positive electrode probe module 300, the negative electrode probe module 400, the negative pressure module 500 and the temperature sensing module 600, as long as the length direction of the support plate 814 and the insulating plate 815 of the rebound mechanism 810 is consistent with the length direction of the single-column battery cell channel 210. When more than two rebound mechanisms 810 are provided in the single-column battery cell channel 210, the rebound mechanism 810 can exert a greater rebound force on the battery cell 1 in the battery cell channel 210, thereby better preventing the battery cell 1 from being stuck in the secondary positioning block 700.

[0043] In addition, it should be noted that the present application does not limit the number of guide posts 811, fixing plates 812 and springs 813 in the rebound mechanism 810. Figure 6 In the illustrated embodiment, the rebound mechanism 810 includes two sets of assemblies consisting of guide posts 811, fixing plates 812 and springs 813, one of which is provided at one end of the support plate 814 and the insulating plate 815, and the other is provided at the other end of the support plate 814 and the insulating plate 815. In each assembly, the spring 813 is sleeved outside the guide post 811 and is located between the support plate 814 and the fixing plate 812. The spring 813 is used to provide a rebound force so that the battery cell 1 is separated from the secondary positioning block 700. It can be understood that in other embodiments, the number of guide posts 811, fixing plates 812 and springs 813 in the rebound mechanism 810 can be greater, such as Figure 8As shown, the rebound mechanism 810 includes four sets of assemblies consisting of guide pillars 811, fixing plates 812 and springs 813, one set of assemblies is arranged at one end of the support plate 814 and the insulating plate 815, one set of assemblies is arranged at the other end of the support plate 814 and the insulating plate 815, and the other two sets of assemblies are arranged at intervals between the two ends of the support plate 814 and the insulating plate 815. By increasing the number of assemblies consisting of guide pillars 811, fixing plates 812 and springs 813 in the rebound mechanism 810, the rebound mechanism 810 can exert a greater rebound force on the battery cell 1 in the battery cell channel 210, thereby better preventing the battery cell 1 from being stuck in the secondary positioning block 700.

[0044] In one embodiment, Figure 2 , Figure 4 and Figure 5 As shown, the battery cell anti-stuck device 800 also includes a sensing component 820, and the sensing component 820 includes a sensor mounting plate 821, a sensing transmitter 822 and a sensing receiver (not shown in the figure). The sensor mounting plate 821 includes a first mounting plate 823 and a second mounting plate (not shown in the figure). The first mounting plate 823 and the second mounting plate are respectively arranged at opposite ends of each column of battery cell channels 210. One end of the first mounting plate 823 is fixedly connected to the module mounting plate 130, and the other end is used to fix the sensing transmitter 822; one end of the second mounting plate is fixedly connected to the module mounting plate 130, and the other end is used to fix the sensing receiver, so that the sensing transmitter 822 and the sensing receiver are respectively installed at opposite ends of the single-column battery cell channel 210. The sensing component 820 is used to detect whether there is a battery cell 1 stuck in the secondary positioning block 700 in the single-column battery cell channel 210 after the formation is completed. It should be noted that in Figure 2 In the illustrated embodiment, in order to more clearly illustrate the structure and arrangement of the positive probe module 300, the negative probe module 400, the negative pressure module 500, the temperature sensing module 600 and the rebound mechanism 810 in a single-column battery cell channel 210, the structure of the sensing component 820 is hidden in two of the battery cell channels 210. At this time, it should not be understood that the sensing component 820 is not provided in the two columns of battery cell channels 210.

[0045] In a specific embodiment, the sensing component 820 is a photoelectric sensing component 820. When the formation is completed and the tray 200 and the battery cell 1 fall down, the sensing transmitter 822 emits a light signal and the sensing receiver receives the light signal. If a battery cell 1 in the single-row battery cell channel 210 is stuck in the secondary positioning block 700, the battery cell 1 will block the light signal emitted by the sensing transmitter 822, so that the light signal cannot reach the sensing receiver. The sensor receiver will emit an abnormal signal if it cannot receive the light signal, so that the sensing component 820 can detect whether there is a battery cell 1 in the single-row battery cell channel 210 stuck in the secondary positioning block 700 after the formation is completed.

[0046] In one embodiment, the battery cell anti-stuck device 800 further includes a middle computer 830 and a host computer 840. The electrical connection relationship between the middle computer 830, the host computer 840, the sensing component 820 and the battery cell 1 is as follows: Fig. 9 As shown. One end of the intermediate computer 830 is electrically connected to the positive probe 310 and the negative probe 410, the positive probe 310 is electrically connected to the positive pole 17 of the battery cell 1, and the negative probe 410 is electrically connected to the negative pole 18 of the battery cell 1. The other end of the intermediate computer 830 is connected to the upper computer 840 for communication; the sensing component 820 is also connected to the upper computer 840 for communication. When the sensing component 820 senses that a battery cell 1 is stuck in the single-row battery cell channel 210 after the formation is completed, the signal is transmitted to the upper computer 840, and the upper computer 840 further detects the electrical signal between the positive probe 310 and the negative probe 410 through the intermediate computer 830, and determines the specific position of the battery cell 1 according to the electrical signal.

[0047] In a specific embodiment, when the formation is completed and a certain battery cell 1 in the single-row battery cell channel 210 is stuck by the secondary positioning block 700, the positive probe 310 is electrically connected to the positive pole 17 of the battery cell 1, and the negative probe 410 is electrically connected to the negative pole 18 of the battery cell 1, thereby forming a loop between the positive probe 310 and the negative probe 410. The intermediate computer 830 can accurately determine the specific position of the stuck battery cell 1 by collecting the electrical signal between the positive probe 310 and the negative probe 410, and transmit the specific position information of the stuck battery cell 1 to the upper computer 840, and the upper computer 840 notifies the operator to handle the stuck battery cell 1 in time. In one embodiment, as Figure 8 As shown, the battery cell anti-jamming device 800 further includes an alarm 850 , which is in communication connection with the host computer 840 and is used to issue an alarm prompt message according to the instruction of the host computer 840 , so as to promptly notify the operator to handle the jammed battery cell 1 .

[0048] In the above embodiment, by setting a rebound mechanism 810, a sensing component 820, a middle computer 830, a host computer 840 and an alarm 850 in the battery cell anti-stuck device 800, the rebound mechanism 810 can quickly deliver the formed battery cell 1 into the tray 200, and increase the downward rebound force to increase the weight of the battery cell 1, so that the battery cell 1 can be synchronously and stably lowered with the tray 200. After the lowering action is completed, the sensing component 820 detects whether there is a battery cell 1 stuck in the secondary positioning block 700 in each column of the battery cell channel 210. At the same time, the voltage detection of the host computer 840 can accurately determine the specific position of the stuck battery cell 1, and send an alarm prompt information through the alarm 850, so that the operator can quickly respond to the problem. Therefore, the battery cell anti-stuck device 800 in the above embodiment can minimize the risk of the battery cell 1 being stuck by combining the mechanical structure and the electronic hardware, and can confirm the situation of the stuck battery cell 1 100%.

[0049] The battery cell anti-stuck device 800 and the battery cell forming equipment 10 of the present application reasonably set the structures of the guide column 811, the fixing plate 812, the spring 813, the support plate 814 and the insulating plate 815 in the rebound mechanism 810 and the connection relationship between them. When the battery cell 1 is located at the forming station, the battery cell 1 is stuck in the secondary positioning block 700, and the insulating plate 815 abuts the battery cell 1 and compresses the spring 813 through the support plate 814. When the battery cell 1 is formed, the spring 813 can provide a rebound force, so that the battery cell 1 is separated from the secondary positioning block 700, which is convenient for the unloading of the battery cell 1, thereby preventing the battery cell 1 from falling during the process of taking out the tray 200 and causing a superimposed short circuit.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0051] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A battery cell formation device, characterized in that: include: A needle bed structure, a tray, a positive probe module, a negative probe module and a secondary positioning block, wherein the needle bed structure includes a lifting mechanism and a module mounting plate; the tray is connected to the lifting mechanism, the tray can move, the positive probe module and the negative probe module are both arranged on the module mounting plate, and the secondary positioning block is arranged at one end of the positive probe module and the negative probe module away from the module mounting plate; and, A battery cell anti-stuck device, the battery cell anti-stuck device comprises a rebound mechanism, the rebound mechanism comprises a guide post, a fixed plate, a spring, a support plate and an insulating plate, the support plate and the insulating plate are stacked, one end of the guide post can be movably inserted into the support plate and the insulating plate, and the other end is fixedly connected to the fixed plate, the spring is sleeved outside the guide post and is located between the support plate and the fixed plate; the fixed plate is used to fix the rebound mechanism on the negative electrode probe module; the insulating plate is located on the side of the support plate away from the fixed plate, and is used to abut the battery cell and compress the spring through the support plate, and the support plate is used to provide strength support; the spring is used to provide a rebound force at the end of formation, so that the battery cell is separated from the secondary positioning block.

2. The battery cell formation equipment according to claim 1, characterized in that: It also includes a sensing component, which includes a sensing transmitter and a sensing receiver. The sensing transmitter and the sensing receiver are respectively installed at opposite ends of a single-row battery cell channel of the battery cell formation equipment, and are used to detect whether there are batteries in the single-row battery cell channel stuck in the secondary positioning block after the formation is completed.

3. The battery cell formation equipment according to claim 2, characterized in that: The induction component also includes an induction mounting plate, which includes a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate are respectively arranged at opposite ends of a single-row battery cell channel of a battery cell formation device, one end of the first mounting plate is fixedly connected to the battery cell formation device, and the other end is used to fix an induction transmitter; one end of the second mounting plate is fixedly connected to the battery cell formation device, and the other end is used to fix an induction receiver.

4. The battery cell formation equipment according to claim 2, characterized in that: It also includes a central computer and a host computer, the sensing component is communicatively connected to the host computer; one end of the central computer is electrically connected to the positive probe and the negative probe, and the other end of the central computer is communicatively connected to the host computer; the positive probe is used to be electrically connected to the positive pole of the battery cell, and the negative probe is used to be electrically connected to the negative pole of the battery cell; the central computer is used to detect the electrical signal between the positive probe and the negative probe after the formation is completed, and send the detection result to the host computer; the host computer is used to determine the specific position of the battery cell according to the electrical signal.

5. The battery cell formation equipment according to claim 4, characterized in that: It also includes an alarm, which is communicatively connected to the host computer and is used to generate alarm prompt information.

6. The battery cell formation equipment according to any one of claims 1 to 5, characterized in that: The battery cell formation equipment also includes a negative pressure module and a temperature sensing module, and the needle bed structure also includes a driving component. The negative pressure module and the temperature sensing module are both arranged on the module mounting plate, and the tray is detachably arranged on the lifting mechanism; the driving component is used to drive the lifting mechanism and the tray to move, so as to lift the battery cell in the tray from a first position to a second position; when the battery cell is located at the second position, the battery cell is stuck in the secondary positioning block, and the positive probe module, the negative probe module, the negative pressure module, the temperature sensing module and the battery cell anti-stuck device are all in contact with the battery cell, and the spring in the rebound mechanism is compressed.

7. The battery cell formation equipment according to claim 6, characterized in that: The tray has at least one column of battery cell channels, each column of battery cell channels has at least one slot, and one slot is used to accommodate one battery cell; each column of battery cell channels corresponds to one positive probe module, one negative probe module, one negative pressure module, one temperature sensing module and at least one rebound mechanism; the positive probe module includes at least one positive probe, the negative probe module includes at least one negative probe, and the positive probe and the negative probe are used to charge and discharge the battery cell; the temperature sensing module includes at least one temperature sensing probe, and the temperature sensing probe is used to test the surface temperature of the battery cell; the negative pressure module has at least one negative pressure nozzle, and the negative pressure nozzle is used to draw negative pressure to the battery cell; each of the slots corresponds to one positive probe, one negative probe, one temperature sensing probe and one negative pressure nozzle.

8. The battery cell formation equipment according to claim 7, characterized in that: The negative pressure nozzle and the temperature sensing probe are both provided with elastic structures, and the elastic structures are used to make the negative pressure module and the temperature sensing module elastically abut against the battery core.

9. The battery cell formation equipment according to claim 6, characterized in that: The positive probe module, negative probe module, negative pressure module and temperature sensing module are arranged in parallel, the fixing plate of the battery cell anti-stuck device is fixedly arranged between two adjacent modules among the positive probe module, negative probe module, negative pressure module and temperature sensing module, and the length direction of the support plate and the insulating plate is consistent with the length direction of the single-row battery cell channel.

10. The battery cell formation equipment according to claim 9, characterized in that: The negative pressure module and the temperature sensing module are arranged between the positive probe module and the negative probe module; the temperature sensing module is adjacent to the positive probe module or the negative probe module, and a gap is left between the temperature sensing module and the positive probe module or the negative probe module, one end of the fixing plate is fixed to the end of the temperature sensing module away from the module mounting plate, and the other end is fixed to the end of the positive probe module or the negative probe module away from the module mounting plate.

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