CN214957024U

CN214957024U - Electricity core pulls out needle detection device and electricity core processing equipment

Info

Publication number: CN214957024U
Application number: CN202120853404.0U
Authority: CN
Inventors: 汪鹏; 李震国; 周浪文
Original assignee: Sunwoda Electric Vehicle Battery Co Ltd
Current assignee: Xinwangda Power Technology Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-11-30
Anticipated expiration: 2031-04-23

Abstract

The embodiment of the application provides a battery cell pull-out needle detection device and battery cell processing equipment, and the battery cell pull-out needle detection device includes a pull-out needle assembly, a bearing assembly, a sensor assembly and a drive assembly, the pull-out needle assembly is arranged on the bearing assembly and is in sliding connection with the bearing assembly, at least one part of the sensor assembly is arranged on the pull-out needle assembly or the bearing assembly, the drive assembly is fixedly connected with the bearing assembly, the drive assembly is configured to drive the bearing assembly and the pull-out needle assembly to move towards or away from a battery cell together, and the sensor assembly is configured to detect whether the pull-out needle assembly and the bearing assembly slide relatively in the process of the common movement of the bearing assembly and the pull-out needle assembly. The battery cell needle pulling detection device provided by the embodiment of the application can detect out a damaged battery cell in time, and avoids the occurrence of battery cell damage caused continuously.

Description

Electricity core pulls out needle detection device and electricity core processing equipment

Technical Field

The utility model relates to a lithium ion battery processing field especially relates to an electricity core pulls out needle detection device and electric core processing equipment.

Background

With the continuous development of new energy industries, lithium ion batteries are widely applied in many industries, and particularly, the demand for lithium ion batteries is continuously increased due to the high-speed development of new energy electric vehicles.

In the winding production process of the conventional lithium ion battery cell, a needle pulling clamping jaw is usually adopted to pull out the wound battery cell from a winding needle and put the wound battery cell into a discharging belt, so that the discharging process of the battery cell is completed. However, when the needle pulling claw is deformed or the needle pulling claw is not matched with the position of the winding needle, the needle pulling claw is easily bruised or bumped when extending into the gap between the battery cell and the winding needle, and in this case, if the damaged battery cell cannot be detected in time, the battery cell damage can be continuously caused.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a needle detection device and electric core processing equipment are pulled out to electric core, can in time detect out impaired electric core, has avoided lasting the emergence that causes electric core damage.

The embodiment of the application provides a battery cell needle pulling detection device, which comprises a needle pulling assembly, a bearing assembly, a sensor assembly and a driving assembly, wherein the needle pulling assembly is arranged on the bearing assembly and is in sliding connection with the bearing assembly, at least one part of the sensor assembly is arranged on the needle pulling assembly or the bearing assembly, the driving assembly is fixedly connected with the bearing assembly, the driving assembly is configured to drive the bearing assembly and the needle pulling assembly to move towards or away from a battery cell together, and the sensor assembly is configured to detect whether the needle pulling assembly and the bearing assembly slide relatively or not in the process of the joint movement of the bearing assembly and the needle pulling assembly.

In some embodiments, the sensor assembly includes a transmitter and a receiver, the transmitter and the receiver are disposed opposite to the carrier assembly, the transmitter is configured to transmit a signal, and when the receiver fails to receive the signal, it is determined that the needle extracting assembly slides relative to the carrier assembly; when the receiver receives the signal, the fact that the needle extracting assembly and the bearing assembly do not slide relatively is determined.

In some embodiments, the sensor assembly includes a transmitter and a receiver, one of the transmitter and the receiver is disposed on the carrier assembly, the other of the transmitter and the receiver is disposed on the needle assembly, the transmitter is for transmitting a signal, and the receiver is for receiving the signal.

In some embodiments, the transmitter transmits a signal in a direction perpendicular or parallel to the sliding direction of the needle extracting assembly, and when the receiver receives the signal or the received signal changes, the needle extracting assembly is determined to slide relative to the bearing assembly; when the receiver fails to receive the signal or the received signal is not changed, the fact that the needle extracting assembly and the bearing assembly do not slide relatively is determined.

In some embodiments, the needle extracting assembly includes a sliding block, the bearing assembly further includes a base and a guiding column, the guiding column is fixedly connected with the base, and the guiding column is arranged through the sliding block.

In some embodiments, the bearing assembly further includes a limiting member and an elastic member, the limiting member is mounted on the base, the elastic member is sleeved on the guide post, and the limiting member and the elastic member are configured to limit the sliding block together.

In some embodiments, the needle extracting assembly further comprises a driving member and a clamping jaw, the driving member is fixedly connected with the sliding block, the driving member is slidably connected with the clamping jaw, and the driving member drives the clamping jaw to clamp and unclamp.

In some embodiments, the clamping jaw comprises a gripping contact configured to grip a cell; when the part of the clamping jaw except the clamping contact part touches the battery core, the pulling needle assembly slides relative to the bearing assembly under the action force of the battery core.

In some embodiments, the needle withdrawal detection device further comprises an alarm component, the alarm component is electrically connected with the sensor component, and the alarm component sends out an alarm signal when the sensor component detects that the needle withdrawal component and the bearing component slide relatively.

The embodiment of the application further provides battery cell processing equipment which comprises the battery cell needle pulling detection device.

According to the battery cell needle pulling detection device provided by the embodiment of the application, the needle pulling assembly and the bearing assembly are arranged to be in sliding connection, at least one part of the sensor assembly is arranged on the needle pulling assembly or the bearing assembly, and the sensor assembly is configured to detect whether the needle pulling assembly and the bearing assembly slide relatively in the process that the bearing assembly and the needle pulling assembly move towards or away from the battery cell together. The battery cell needle pulling detection device can detect the damaged battery cell in time, and the battery cell damage caused by continuous operation is avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a first structural schematic diagram of a battery cell needle pulling detection device provided in an embodiment of the present application.

Fig. 2 is a structural schematic diagram of a first angle of the battery cell needle pulling detection device shown in fig. 1.

Fig. 3 is a structural schematic diagram of a second angle of the battery cell needle pulling detection device shown in fig. 1.

Fig. 4 is a schematic structural diagram of a sensor assembly and an alarm assembly in the battery cell pull-out pin detection apparatus shown in fig. 1.

Fig. 5 is a first structural schematic diagram of a needle pulling assembly in the battery cell needle pulling detection apparatus shown in fig. 1.

Fig. 6 is a second structural schematic diagram of the needle pulling assembly in the battery cell needle pulling detection apparatus shown in fig. 1.

Fig. 7 is a schematic view of a first structure of a bearing assembly in the battery cell pin pulling detection apparatus shown in fig. 1.

Fig. 8 is a second structural schematic diagram of the bearing assembly in the battery cell pin pulling detection apparatus shown in fig. 1.

Fig. 9 is a second structural schematic diagram of the battery cell needle pulling detection device provided in the embodiment of the present application.

Fig. 10 is a schematic structural diagram of a cell processing apparatus according to an embodiment of the present application.

Description of the reference numerals

1-cell processing equipment 10-cell needle pulling detection device 12-needle pulling assembly

122-slider 1222-mounting hole 1224-mounting bracket

124-driver 126-jaws 1262-first part

1264-second part 14-carrier assembly 142-guide post

144-base 1441-bottom plate 1442-first mounting plate

1443-second mounting plate 1444-first mounting bracket 1445-second mounting bracket

146-stop 148-spring 16-sensor assembly

162-transmitter 164-receiver 18-drive assembly

19-alarm assembly 20-cell conveying device 30-cell device.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a battery cell pull-out needle detection device and battery cell processing equipment. The battery cell needle pulling detection device is used for detecting the damage condition of the battery cell in the process of pulling the needle out of the battery cell in real time. In the winding production process of the conventional lithium ion battery cell, a needle pulling clamping jaw is usually adopted to pull out the wound battery cell from a winding needle and put the wound battery cell into a discharging belt, so that the discharging process of the battery cell is completed. However, when the needle pulling claw is deformed or the needle pulling claw is not matched with the position of the winding needle, the needle pulling claw is easily bruised or bumped when extending into the gap between the battery cell and the winding needle, and in this case, if the damaged battery cell cannot be detected in time, the battery cell damage can be continuously caused. Therefore, the battery cell needle pulling detection device provided by the embodiment of the application can be applied to the process of separating the battery cell from the winding needle to detect the damage condition of the battery cell in time so as to avoid continuously causing the damage condition of the battery cell.

Exemplarily, referring to fig. 1 to fig. 3, fig. 1 is a first structural schematic diagram of a cell pin removal detection device provided in an embodiment of the present application, fig. 2 is a structural schematic diagram of a first angle of the cell pin removal detection device shown in fig. 1, and fig. 3 is a structural schematic diagram of a second angle of the cell pin removal detection device shown in fig. 1. The cell withdrawal testing apparatus 10 includes a withdrawal assembly 12, a carrier assembly 14, a sensor assembly 16, and a drive assembly 18. The needle extracting assembly 12 is disposed on the carrier assembly 14 and is slidably connected to the carrier assembly 14. At least a portion of the sensor assembly 16 is disposed on either the needle assembly 12 or the carrier assembly 14. A drive assembly 18 is fixedly connected to the carrier assembly 14, the drive assembly 18 being configured to drive the carrier assembly 14 and the puller assembly 12 together toward or away from the battery cell. The sensor assembly 16 is configured to detect whether the needle assembly 12 slides relative to the carrier assembly 14 during movement of the carrier assembly 14 and the needle assembly 12 together.

By placing the needle assembly 12 in sliding connection with the carrier assembly 14, at least a portion of the sensor assembly 16 is disposed on either the needle assembly 12 or the carrier assembly 14, and the sensor assembly 16 is configured to detect whether the needle assembly 12 slides relative to the carrier assembly 14 during movement of the carrier assembly 14 and the needle assembly 12 together. When the pulling needle assembly 12 and the carrier assembly 14 slide relatively, that is, the position between the pulling needle assembly 12 and the winding needle is not matched, the pulling needle assembly 12 touches the battery cell when moving towards or away from the battery cell, and it can be determined that the battery cell is damaged. When the pulling needle assembly 12 and the carrier assembly 14 do not slide relatively, that is, when the position between the pulling needle assembly 12 and the winding needle is matched, the pulling needle assembly 12 moves toward or away from the battery cell and does not touch the battery cell, it may be determined that the battery cell is not damaged. Whether the needle pulling assembly 12 and the bearing assembly 14 slide relatively or not is detected, so that the battery cell needle pulling detection device 10 can detect a damaged battery cell in time, and the battery cell damage caused continuously is avoided.

For example, please refer to fig. 4, and fig. 4 is a schematic structural diagram of a sensor assembly and an alarm assembly in the battery cell pull-out pin detection apparatus shown in fig. 1. The battery cell pulling needle detection device 10 may further include an alarm component 19, the alarm component 19 may be electrically connected to the sensor component 16, and when the sensor component 16 detects that the pulling needle component 12 slides relative to the carrier component 14, the alarm component 19 sends an alarm signal to remind an operator. Wherein the sensor assembly 16 can be understood as a trigger switch of the alarm assembly 19, when the alarm condition is satisfied, that is, when the sensor assembly 16 detects the relative sliding between the needle extracting assembly 12 and the bearing assembly 14, the alarm assembly 19 is triggered to turn on the alarm.

For a clearer illustration of the structure and the detection manner of the cell pin pulling detection device 10, the pin pulling assembly 12, the carrier assembly 14, the sensor assembly 16 and the driving assembly 18 will be described below with reference to the drawings.

Exemplarily, referring to fig. 5 and fig. 6 in combination with fig. 1, fig. 5 is a first structural schematic diagram of a needle pulling assembly in the battery cell needle pulling detection apparatus shown in fig. 1, and fig. 6 is a second structural schematic diagram of the needle pulling assembly in the battery cell needle pulling detection apparatus shown in fig. 1. The pulling assembly 12 is used for pulling the battery core from the winding needle. The needle assembly 12 includes a slider 122, a driver 124, and a jaw 126.

Illustratively, the jaw 126 includes a first portion 1262 and a second portion 1264. The first and

second portions

1262, 1264 cooperate to effect clamping and unclamping of the jaws 126. For example, the first portion 1262 may be cylindrical, the second portion 1264 may also be cylindrical, and the cylindrical diameter of the first portion 1262 is greater than the cylindrical diameter of the second portion 1264. The second part 1264 may cooperate with a winding pin wound around the battery cell, for example, the winding pin has a groove structure, and the second part 1264 may be provided with a protruding pin portion cooperating with the groove structure of the winding pin, so that the needle extraction of the battery cell is positioned by the second part 1264.

The clamping jaw 126 may further include a clamping contact portion (not shown in the figure), and the clamping contact portion is configured to clamp the battery cell. When a portion other than the gripping contact portion of the jaw 126 touches the battery cell, the pulling needle assembly 12 slides relative to the carrier assembly 14 under the force of the battery cell. It should be noted that the grasping contact may include a first sub-contact located in the first portion 1262 and a second sub-contact located in the second portion 1264. Of course, the first sub-contact portion may be disposed on the second portion 1264, and the second sub-contact portion may be disposed on the first portion 1262, which is not limited herein.

Under the normal operating condition, electric core is got to first sub contact site and the sub contact site clamp of second to the realization carries out the operation to electric core, and electric core can not receive the damage under this kind of condition. When the parts except the first sub-contact part and the second sub-contact part touch the battery cell, the pin pulling assembly 12 slides relative to the bearing assembly 14 under the action of the battery cell, that is, the battery cell is damaged.

It should be noted that the composition of the clamping jaw 126 may adopt the above-mentioned structure but is not limited to the above-mentioned structure.

Illustratively, the driver 124 is coupled to the sled 122, an output end of the driver 124 is coupled to the first portion 1262, the second portion 1264 is coupled to the sled 122, and the driver 124 drives the first portion 1262 toward or away from the second portion 1264 to effect a clamping or unclamping action of the jaws 126.

For example, the slider 122 may have a cubic shape. The slider 122 is connected to the driver 124 such that the slider 122 can move the driver 124 and the jaw 126 together. The slider 122 can be directly disposed on the carrier assembly 14, and the setting of the friction coefficient of the slider 122 and the carrier assembly 14 needs to satisfy two conditions: in one aspect, the slider 122 does not move relative to the carrier assembly 14 as the drive assembly 18 drives the carrier assembly 14 and the needle assembly 12 to move together. On the other hand, the slider 122 may move relative to the carriage assembly 14 when the carriage assembly 14 is not moving relative to the drive assembly 18 and the jaws 126 are blocked.

For example, at least two mounting holes 1222 may be provided in the sliding direction of the slider 122 to facilitate the sliding mounting of the slider 122 on the carriage assembly 14. For example, the slider 122 may include three mounting holes 1222, and the mounting holes 1222 may be circular, square, irregular, etc., but are not limited thereto, and may be adapted to the mounting member mounted on the bearing component 14. Illustratively, the three mounting holes 1222 of the slider 122 are circular, and each mounting hole 1222 is provided with a bearing, such that the slider 122 can move relative to the carrier assembly 14 with less wear on the slider 122.

With reference to fig. 1, fig. 5, fig. 6, and fig. 7, fig. 7 is a schematic view of a first structure of a carrier assembly in the battery cell pin pulling detection apparatus shown in fig. 1. The carrier assembly 14 includes guide posts 142 and a base 144. The guiding column 142 is fixedly connected with the base 144, and the guiding column 142 is arranged on the sliding block 122 in a penetrating way.

It is understood that the number of the guide posts 142 may be set to be equal to the number of the mounting holes 1222 of the slider 122. For example, the number of the guide posts 142 is three, and the guide posts are installed corresponding to the three installation holes 1222 of the slider 122, respectively, that is, one guide post 142 is inserted into one installation hole 1222. The provision of at least two mounting holes 1222 and at least two guide posts 142 allows the slider 122 to slide more stably on the guide posts 142 than if only one guide post 142 and one mounting hole 1222 were provided, while also serving to carry the needle extracting assembly 12.

The guiding column 142 may be cylindrical, square-cylindrical or prism-shaped, and may be adapted to the mounting hole 1222 of the slider 122. Illustratively, the guide posts 142 may be cylindrical and the mounting holes 1222 of the slider 122 are correspondingly circular holes, such that the guide posts 142 may be inserted into the mounting holes 1222 of the slider 122, thereby allowing the slider 122 to slide relative to the guide posts 142.

The base 144 includes a bottom plate 1441, a first mounting plate 1442, and a second mounting plate 1443. The first mounting plate 1442 and the second mounting plate 1443 are oppositely disposed on the bottom plate 1441. The guide posts 142 are mounted at both ends thereof to the first and

second mounting plates

1442 and 1443, respectively. The bottom plate 1441 may be a square plate, a circular plate, or a special-shaped plate, the first mounting plate 1442 may be a rectangular plate, a square plate, a circular plate, a semicircular plate, or a special-shaped plate, and the second mounting plate 1443 may also be a rectangular plate, a square plate, a circular plate, a semicircular plate, or a special-shaped plate. Illustratively, the bottom plate 1441 is configured as a square plate, the first mounting plate 1442 and the second mounting plate 1443 are configured as a rectangular plate, the long edge of the first mounting plate 1442 is configured on the bottom plate 1441, and the long edge of the second mounting plate 1443 is configured on the bottom plate 1441 and at a position corresponding to the first mounting plate 1442, so that the plurality of guide posts 142 can be uniformly arranged on the first mounting plate 1442 and the second mounting plate 1443.

The carrier assembly 14 further includes a retaining member 146 and a resilient member 148. The stopper 146 is mounted on the base 144 and abuts against the slider 122. The elastic element 148 is sleeved on the guiding column 142 and abuts against the base 144 and the sliding block 122. The stopper 146 and the elastic member 148 together limit the slider 122.

It should be noted that the initial position of the slider 122 is substantially the middle position between the first mounting plate 1442 and the second mounting plate 1443, and the limiting member 146 and the elastic member 148 are used for limiting the slider 122 to maintain the initial position.

The limiting member 146 may be a limiting plate, a limiting screw, a limiting spring, or the like, and is mainly used to limit the sliding block 122 together with the elastic member, so that the sliding block 122 is located at a substantially middle position of the first mounting plate 1442 and the second mounting plate 1443 in the initial state and the reset state. For example, the limiting member 146 is a limiting screw, one end of the screw can be screwed to the first mounting plate 1442, and the other end of the screw abuts against the sliding block 122 to limit the movement of the sliding block 122 toward the first mounting plate 1442. For another example, the limiting member 146 is a limiting spring, the limiting spring can be sleeved on the guiding column 142, and the limiting spring is used for blocking the slider 122 from moving towards the first mounting plate 1442, so that the limiting spring can be a spring that deforms only when the pressure or tension is large.

In addition, the number of the limiting members 146 may be one, two, or more, for example, one limiting member 146 may be provided, and one end of the limiting member 146, which abuts against the sliding block 122, may be provided as a plate shape, so as to ensure that the limiting member 146 can block the movement of the sliding block 122 towards the first mounting plate 1442. For another example, the limiting members 146 are two limiting screws, and the two limiting screws constitute the limiting members 146 capable of blocking the slider 122 from moving toward the first mounting plate 1442.

The elastic element 148 is used for cooperating with the limiting element 146 to limit the sliding block 122 together, and meanwhile, the elastic element 148 can reserve a space for the sliding block 122 to move towards the second mounting plate 1443 and push the sliding block 122 to perform a reset action after moving. For example, the elastic element 148 may be a compression spring, which is sleeved on the guiding column 142, and in an initial state, one end of the elastic element 148 abuts against the sliding block 122, and the other end of the elastic element 148 abuts against the second mounting plate 1443, that is, one end of the compression spring abuts against the sliding block 122, and the other end of the compression spring abuts against the second mounting plate 1443. When the sliding block 122 moves towards the second mounting plate 1443, the compressed spring is pressed to generate a force towards the first mounting plate 1442, so as to push the sliding block 122 to move towards the first mounting plate 1442, and the sliding block 122 stops when moving to abut against the limiting member 146.

The sensor assembly 16 is used to detect whether the needle puller assembly 12 and the carrier assembly 14 slide relative to each other. Illustratively, the sensor assembly 16 may include a transmitter 162 and a receiver 164. The transmitter 162 is used for transmitting a signal, the receiver 164 is used for receiving the signal transmitted by the transmitter 162, and whether the needle extracting assembly 12 and the carrying assembly 14 slide relatively can be judged according to whether the receiver 164 receives the signal transmitted by the transmitter 162. The signal may be, but is not limited to, an optical signal.

For example, with continued reference to fig. 7, the transmitter 162 and the receiver 164 are disposed opposite the carrier 14. In particular, the base 144 may further include a first mounting bracket 1444 and a second mounting bracket 1445. The first and second mounting

brackets

1444 and 1445 may be relatively disposed on the bottom plate 1441 in a direction X perpendicular to a sliding direction of the slider 122. The transmitter 162 may be disposed on the first mounting bracket 1444 and the receiver 164 may be disposed on the second mounting bracket 1445. When the receiver 164 fails to receive the signal, it is determined that the pulling needle assembly 12 slides relative to the carrier assembly 14, i.e., it is determined that the battery cell is damaged. Stated another way, because of the relative sliding movement of the needle assembly 12 and the carrier assembly 14, the needle assembly 12 blocks the signal transmitted by the transmitter 162, thereby disabling the receiver 164 from receiving the signal transmitted by the transmitter 162. When the receiver 164 receives the signal, it is determined that the pulling assembly 12 and the carrying assembly 14 do not slide relatively, that is, it may be determined that the battery cell is not damaged. Specifically, when the sliding block 122 does not move or the moving distance toward the second mounting plate 1443 is smaller than the first distance, the receiver 164 may receive the signal transmitted from the transmitter 162, and it is determined that the needle extracting assembly 12 and the carrier assembly 14 do not slide relatively, that is, the battery cell is not damaged. When the moving distance of the slider 122 towards the second mounting plate 1443 is greater than the first distance, the slider 122 may block the signal emitted by the emitter 162, so that the receiver 164 cannot receive the signal emitted by the emitter 162, and it is determined that the needle pulling assembly 12 and the carrier assembly 14 have slid relatively, that is, the battery cell is damaged, so that an alarm may be triggered, and an operator may know the detection state of the battery cell needle pulling detection apparatus 10 at this time, so as to perform corresponding processing work. For example, the first distance may be set to 0, that is, as long as the moving distance of the slider 122 is greater than 0, it can be determined that the needle pulling assembly 12 and the carrier assembly 14 slide relatively, that is, the battery cell is in a damaged state at this time, and at this time, an operator needs to check the needle pulling assembly 12 or the winding needle to avoid continuously damaging the battery cell. For another example, the first distance may also be 1 to 2cm, and when the moving distance of the slider 122 is greater than the range of 1 to 2cm, it may be determined that the battery cell is in a damaged state at this time, and in order to avoid continuously causing damage to the battery cell, an operator needs to check the needle pulling assembly 12 or the needle winding, and remove the damaged battery cell.

It should be noted that the installation and use of the sensor assembly 16 is not limited to the above-described manner. In other embodiments, one of the transmitter 162 and receiver 164 may be disposed on the carrier assembly 14 and the other of the transmitter 162 and receiver 164 may be disposed on the needle assembly 12. Exemplarily, referring to fig. 8 and fig. 9, fig. 8 is a second structural schematic diagram of a carrier assembly in the cell pin removal detection apparatus shown in fig. 1, and fig. 9 is a second structural schematic diagram of the cell pin removal detection apparatus provided in the embodiment of the present application. Base 144 may include a first mount 1444, and slipper 122 may include a mount 1224, transmitter 162 may be mounted to first mount 1444, and receiver may be mounted to mount 1224. At this time, the direction X in which the transmitter 162 transmits the signal is perpendicular to the sliding direction Y of the needle extracting assembly 12. When the receiver 164 receives the signal, it is determined that the pulling needle assembly 12 slides relative to the carrying assembly 14, that is, it is determined that the battery cell is damaged. When the receiver 164 fails to receive the signal, it is determined that the pulling assembly 12 and the carrying assembly 14 do not slide relatively, that is, it may be determined that the battery cell is not damaged. Specifically, when the sliding block 122 does not move or the moving distance towards the second mounting plate 1443 is less than the first distance, the receiver 164 cannot receive the signal transmitted from the transmitter 162, and it is determined that the needle extracting assembly 12 and the carrying assembly 14 do not slide relatively, that is, the battery cell is not damaged. When the slider 122 moves towards the second mounting plate 1443 for a distance greater than the first distance, the receiver 164 may receive the signal transmitted from the transmitter 162, and at this time, it is determined that the needle withdrawing assembly 12 and the carrier assembly 14 have slid relatively, so as to trigger an alarm, so that an operator may know the detection state of the battery cell needle withdrawing detection apparatus 10 at this time, and perform corresponding processing work. For example, the first distance may be set to 0, that is, as long as the moving distance of the slider 122 is greater than 0, it can be determined that the needle pulling assembly 12 and the carrier assembly 14 slide relatively, that is, the battery cell is in a damaged state at this time, and at this time, an operator needs to check the needle pulling assembly 12 or the winding needle to avoid continuously damaging the battery cell. For another example, the first distance may also be 1 to 2cm, and when the moving distance of the slider 122 is greater than the range of 1 to 2cm, it may be determined that the battery cell is in a damaged state at this time, and in order to avoid continuously causing damage to the battery cell, an operator needs to check the needle pulling assembly 12 or the needle winding, and remove the damaged battery cell.

In still other embodiments, one of the transmitter 162 and receiver 164 may be disposed on the carrier assembly 14 and the other of the transmitter 162 and receiver 164 may be disposed on the needle assembly 12. For example, the transmitter 162 is mounted on the second mounting plate 1443, and the receiver 164 is mounted on the slider 122 (not shown), so that the signal transmitted by the transmitter 162 is parallel to the sliding direction Y of the needle extracting assembly 12, and the receiver 164 can continuously receive the signal transmitted by the transmitter 162. When the signal received by the receiver 164 changes, it is determined that the needle extracting assembly 12 slides relative to the carrying assembly 14, that is, it is determined that the battery cell is damaged. When the signal received by the receiver 164 does not change, it is determined that the pulling assembly 12 and the carrying assembly 14 do not slide relatively, that is, it is determined that the battery cell is not damaged.

The driving assembly 18 may be a cylinder structure, and a moving portion of the cylinder structure may be fixedly connected to the bottom plate 1441, so that the telescopic movement of the cylinder drives the carrying assembly 14 and the needle extracting assembly 12 to move together.

The battery cell extraction needle detection device 10 provided by the embodiment of the present application is configured to detect whether the extraction needle assembly 12 and the carrier assembly 14 slide relatively during the process of the carrier assembly 14 and the extraction needle assembly 12 moving together, by disposing the extraction needle assembly 12 in sliding connection with the carrier assembly 14, disposing at least a portion of the sensor assembly 16 on the extraction needle assembly 12 or the carrier assembly 14, and configuring the sensor assembly 16. The battery cell needle pulling detection device 10 can detect the damaged battery cell in time, and the battery cell damage caused continuously is avoided.

An embodiment of the present application further provides a battery cell processing apparatus, referring to fig. 10, where fig. 10 is a schematic structural diagram of the battery cell processing apparatus provided in the embodiment of the present application. The battery cell processing apparatus 1 may include a battery cell pull-out detection device 10, a battery cell transportation device 20, and a battery cell device 30. The battery cell device 30 may be a matching structure of a battery cell and a winding needle, and may be understood as a battery cell wound on the winding needle, and the battery cell is separated from the winding needle by the battery cell needle pulling detection device 10 and then put on the battery cell conveying device 20, so that a part of procedures of battery cell processing can be completed.

For example, the battery cell device 30 (a specific structure of the battery cell device 30 is not shown in the figure) may include a battery cell, a winding pin, and a support, where the battery cell is wound around the winding pin and fixed on the support.

The cell conveying device 20 may be understood as a conveyor belt, and after the separation operation of the cell and the winding needle is completed, the cell conveying device 20 conveys the dropped cell to the position of the next process.

The cell extraction detecting device 10 is used to extract a cell from the cell device 30 and place the cell on the cell conveying device 20. The battery cell pull pin detection apparatus 10 may refer to various structures of the battery cell pull pin detection apparatus 10 shown in fig. 1 to 9, and details thereof are not repeated herein.

The application provides a battery core processing equipment 1, can accomplish the partial process of battery core processing automatically. Wherein the battery cell processing equipment comprises a battery cell extraction needle detection device 10, at least one part of a sensor assembly 16 is arranged on the extraction needle assembly 12 or the carrier assembly 14 by arranging the extraction needle assembly 12 in sliding connection with the carrier assembly 14, and the sensor assembly 16 is configured to detect whether the extraction needle assembly 12 and the carrier assembly 14 slide relatively during the joint movement of the carrier assembly 14 and the extraction needle assembly 12. The battery cell needle pulling detection device 10 can detect the damaged battery cell in time, and the battery cell damage caused continuously is avoided.

The above detailed description is made on the cell pin pulling detection device and the cell processing equipment provided by the embodiment of the application. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A battery core needle pulling detection device is characterized by comprising a needle pulling assembly, a bearing assembly, a sensor assembly and a driving assembly, wherein the needle pulling assembly is arranged on the bearing assembly and is in sliding connection with the bearing assembly, at least one part of the sensor assembly is arranged on the needle pulling assembly or the bearing assembly, the driving assembly is fixedly connected with the bearing assembly, the driving assembly is configured to drive the bearing assembly and the needle pulling assembly to move towards or away from a battery core together, and the sensor assembly is configured to detect whether the needle pulling assembly and the bearing assembly slide relatively or not in the process of the joint movement of the bearing assembly and the needle pulling assembly.

2. The battery cell needle pulling detection device according to claim 1, wherein the sensor assembly comprises a transmitter and a receiver, the transmitter and the receiver are oppositely disposed on the carrier assembly, the transmitter is configured to transmit a signal, and when the receiver fails to receive the signal, it is determined that the needle pulling assembly slides relative to the carrier assembly; when the receiver receives the signal, the fact that the needle extracting assembly and the bearing assembly do not slide relatively is determined.

3. The cell pull pin detection device of claim 1, wherein the sensor assembly comprises a transmitter and a receiver, one of the transmitter and the receiver is disposed on the carrier assembly, the other of the transmitter and the receiver is disposed on the pull pin assembly, the transmitter is configured to transmit a signal, and the receiver is configured to receive the signal.

4. The cell pin pulling detection device according to claim 3, wherein the transmitter transmits a signal in a direction perpendicular to or parallel to a sliding direction of the pin pulling assembly, and when the receiver receives the signal or the received signal changes, it is determined that the pin pulling assembly slides relative to the carrier assembly; when the receiver fails to receive the signal or the received signal is not changed, the fact that the needle extracting assembly and the bearing assembly do not slide relatively is determined.

5. The electrical core needle pulling detection device according to any one of claims 1 to 4, wherein the needle pulling assembly comprises a slider, the bearing assembly comprises a base and a guide post, the guide post is fixedly connected with the base, and the guide post is inserted into the slider.

6. The electrical core needle pulling detection device according to claim 5, wherein the carrier assembly further includes a limiting member and an elastic member, the limiting member is mounted on the base, the elastic member is sleeved on the guide post, and the limiting member and the elastic member are configured to limit the slider together.

7. The battery cell pulling needle detection device according to claim 5, wherein the pulling needle assembly further comprises a driving member and a clamping jaw, the driving member is fixedly connected with the slider, the driving member is slidably connected with the clamping jaw, and the driving member drives the clamping jaw to clamp and unclamp.

8. The cell coring detection apparatus of claim 7, wherein the clamping jaw comprises a clamping contact configured to clamp a cell; when the part of the clamping jaw except the clamping contact part touches the battery core, the pulling needle assembly slides relative to the bearing assembly under the action force of the battery core.

9. The electrical core needle pulling detection device according to any one of claims 1 to 4, further comprising an alarm component, wherein the alarm component is electrically connected to the sensor component, and when the sensor component detects that the needle pulling assembly slides relative to the bearing component, the alarm component sends an alarm signal.

10. A battery cell processing apparatus, characterized by comprising the battery cell pulling pin detection apparatus according to any one of claims 1 to 9.