Device for identifying blockage of ceramic cup and liquid injection machine

Abstract

The utility model relates to the technical field of liquid injection of lithium ion batteries, and discloses a device for identifying blockage of a ceramic cup and a liquid injection machine. The device comprises a driving part, the driving part is in driving connection with a contact type sensor, and the driving part is used for driving the contact type sensor to move to a preset detection position at a preset moment after liquid injection of a ceramic cup is started; when the ceramic cup rod of the ceramic cup does not move to a preset target position at the preset moment, the contact type sensor makes contact with the ceramic cup rod, and a prompt signal used for prompting that the clamping phenomenon occurs in the liquid injection process is sent out. According to the utility model, the contact type sensor is arranged, so that the clamping phenomenon of the ceramic cup in the liquid injection process can be detected in time, and the operation is very convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium ion battery liquid injection technical field especially, a device and liquid injection machine for identifying ceramic cup jam. BACKGROUND

[0002] In the manufacturing process of lithium ion batteries, liquid injection is a crucial step. Liquid injection refers to precisely injecting electrolyte into the already packaged battery, so that the electrolyte can fully contact the positive and negative materials, forming a complete electrochemical system. Liquid injection is usually carried out by special equipment, and the key component is the liquid injection ceramic cup. As the core tool in the liquid injection process, the main function of the liquid injection ceramic cup is to contain electrolyte and, under appropriate pressure and speed, uniformly and stably inject electrolyte into the battery through precise micro-porous structure. However, in actual production process, sometimes there is a problem of liquid injection ceramic cup jam, that is, the liquid injection process becomes sluggish, unstable, or even stagnant; the background is as follows:

[0003] 1. High process requirements: lithium ion batteries have very strict requirements on liquid injection process, and accurate control of liquid injection volume directly affects the performance and safety of the battery; the micro-porous design of the liquid injection ceramic cup must ensure sufficient injection speed and prevent electrolyte from entering the battery too quickly or too slowly to avoid affecting battery performance or causing safety problems.

[0004] 2. Material sensitivity: there may be interaction between electrolyte and ceramic material, such as some components in electrolyte may be adsorbed on the inner wall of the ceramic cup, which may cause micro-porous blockage or formation of attachments on the inner wall after long-term use, thus causing liquid injection jam.

[0005] 3. Difficulty in equipment maintenance: cleaning and maintenance of the ceramic cup in the liquid injection equipment is a challenge because its micro-porous structure is prone to dirt accumulation, and improper cleaning may cause micro-porous damage or deformation, further exacerbating the jam problem.

[0006] 4. Production efficiency requirements: modern lithium ion battery production pursues high speed, high precision and large-scale mass production, and the jam problem of the liquid injection ceramic cup not only affects the quality of individual batteries, but also reduces the efficiency of the entire production line and increases production costs.

[0007] Therefore, how to timely identify the liquid injection ceramic cup jam problem is of great significance to improve the production efficiency and product quality of lithium ion batteries.

[0008] The above information is given as background information to assist in understanding the present disclosure and does not determine or acknowledge whether any of the above content can be used as prior art with respect to the present disclosure. UTILITY MODEL CONTENT

[0009] The utility model discloses a purpose at providing a device for identifying ceramic cup jam and liquid injection machine to solve or at least partially solve the technical problem in prior art.

[0010] To achieve this purpose, the utility model adopts the following technical scheme:

[0011] First, the utility model provides a device for identifying ceramic cup jam, including drive piece, drive piece drive connection has contact type sensor, drive piece is used to drive contact type sensor to move to predetermined detection position after ceramic cup starts liquid injection in predetermined time;

[0012] When the ceramic cup rod of ceramic cup does not move to the predetermined target position in predetermined time, contact type sensor contacts ceramic cup rod, and sends prompt signal for prompting the jam phenomenon in liquid injection process.

[0013] Optionally, still include mounting plate, drive piece fixedly arranged on mounting plate, mounting plate fixedly arranged with guide slide rail, guide slide rail is slidably connected with sliding block, sliding block is fixedly connected with connecting piece, and connecting piece is provided with sensor mounting piece for fixedly installing contact type sensor;

[0014] The driving part of drive piece is fixedly connected with sliding block, and is used for driving sliding block to slide on guide slide rail along the predetermined first direction.

[0015] Optionally, mounting plate is provided with liquid injection table for placing ceramic cup, and when ceramic cup is placed in predetermined cup position on liquid injection table, contact type sensor is located directly above ceramic cup rod.

[0016] When ceramic cup starts liquid injection, ceramic cup rod gradually goes into the inside of ceramic cup along the first direction.

[0017] Optionally, sliding block is provided with L-shaped connecting plate.

[0018] Connecting plate includes first plate segment and second plate segment, and the first plate segment is detachably fixedly connected with connecting piece, and the second plate segment is fixedly connected with driving part, and the central part of second plate segment is provided with avoiding through hole for avoiding mounting plate and guide slide rail.

[0019] In the process that contact type sensor is driven to move to predetermined detection position, the first end of mounting plate and the first end of guide slide rail can pass through avoiding through hole.

[0020] Optionally, the liquid injection table and the guide slide rail are arranged on a first side of the mounting plate, and a supporting table is fixedly arranged on a second side of the mounting plate, and the driving member is fixedly mounted on the supporting table; wherein the first side and the second side are opposite sides of the mounting plate.

[0021] At a predetermined time after the ceramic cup starts to inject liquid, the driving member drives the driving part to move along the first direction towards the supporting table, thereby driving the sliding block connected with the connecting plate to quickly slide on the guide slide rail towards the liquid injection table, so that the contact sensor quickly reaches the predetermined detection position.

[0022] Optionally, the first end of the ceramic cup rod is further fixedly provided with a rubber pad, and the time taken by the first end of the ceramic cup rod from its initial position to the target position is the liquid injection time of the ceramic cup; the predetermined time is the time when the ceramic cup starts to inject liquid plus a predetermined time threshold.

[0023] When the liquid injection time is less than or equal to the time threshold, the contact sensor does not contact the rubber pad.

[0024] Optionally, the driving member is a pneumatic cylinder or a linear motor.

[0025] Optionally, the contact sensor is an LED type contact sensor.

[0026] In a second aspect, the utility model provides a kind of liquid injection machine, including control system, the control system is electrically connected with the device for identifying the device for identifying ceramic cup jam as above.

[0027] Optionally, the control system is further electrically connected with a liquid injection adjusting device for controlling the liquid injection speed of the ceramic cup.

[0028] When the control system receives the prompt signal, an alarm signal is issued, and / or an adjustment signal is issued to the liquid injection adjusting device to adjust the liquid injection speed to ensure that the liquid injection of the ceramic cup can proceed normally.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] If ceramic cup jam occurs during the liquid injection process, it will cause changes in parameters such as the displacement speed of the ceramic cup rod (or the liquid injection time). By installing a contact sensor, changes in these parameters during the liquid injection process of the ceramic cup can be detected, and whether there is a jam phenomenon can be judged accordingly, which is very convenient.

[0031] The present application has other characteristics and advantages, which will be apparent from the accompanying drawings and the detailed description that follows, or will be set forth in the accompanying drawings and the detailed description that follows, which together serve to explain the specific principles of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, simple introductions will be given to the drawings needed to be used in the embodiments or the prior art description below. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0033] Figure 1 is a structural schematic view of a device for identifying ceramic cup blockage provided by the embodiment of the present application.

[0034] In the figure: 10, mounting plate; 11, supporting table; 20, driving part; 21, driving part; 22, connecting plate; 221, avoiding through hole; 30, guide sliding rail; 31, sliding block; 40, connecting part; 41, sensor mounting part; 50, contact sensor; 60, ceramic cup; 61, ceramic cup rod; 62, rubber pad; 70, liquid injection table; 80, data line. DETAILED DESCRIPTION

[0035] In order to explain the possible application scenarios, technical principles, specific schemes that can be implemented, purposes and effects that can be achieved, etc. of the present application, the following will be described in detail in combination with the specific embodiments listed and the accompanying drawings. The embodiments described in this paper are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0036] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, and does not particularly limit its independence or association with other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0037] Unless otherwise defined, the meanings of the technical terms used in this paper are the same as those commonly understood by those skilled in the art to which the present application belongs; the use of related terms in this paper is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0038] In the description of the present application, the phrase "and / or" is a description of a logical relationship between objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " herein generally represents that the associated objects before and after are an "or" logical relationship.

[0039] In the present application, the terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary, or order relationship between the entities or operations.

[0040] In the present application, without more limitation, the "includes", "contains", "has" or other similar expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the existence of other elements in the process, method or product including the described elements, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include the elements inherent to such process, method or product.

[0041] As the same understanding as in the "Guidelines for Examination", in the present application, the expressions such as "greater than", "less than", "exceed" are understood as not including the number; the expressions such as "above", "below", "within" are understood as including the number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly limited.

[0042] In the description of the embodiments of the present application, the spatial-related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or the drawings, and are only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and do not indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0043] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0044] Example 1:

[0045] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a device for identifying jamming in a ceramic cup, provided by an embodiment of this utility model; as shown. Figure 1 As shown, the device includes a drive unit 20, which drives a contact sensor 50.

[0046] The drive unit 20 is used to drive the contact sensor 50 to a predetermined detection position at a predetermined moment after the ceramic cup 60 begins to inject liquid;

[0047] When the ceramic cup rod 61 of the ceramic cup 60 fails to move to the predetermined target position at a predetermined time, the contact sensor 50 contacts the ceramic cup rod 61 and sends a warning signal to indicate that a jam has occurred during the liquid injection process.

[0048] If the ceramic cup 60 gets stuck during the liquid injection process, it will inevitably cause a change in the displacement speed (or liquid injection time) of the ceramic cup rod 61. By installing a contact sensor 50, these changes in parameters of the ceramic cup 60 during the liquid injection process can be detected, and the presence of a stuck phenomenon can be determined accordingly, which is very convenient.

[0049] Specifically, the device also includes a mounting plate 10, and a drive component 20 is fixedly mounted on the mounting plate 10;

[0050] The injection platform 70 is located on the first side of the mounting plate 10. Figure 1 (The left front side of the mounting plate 10), exemplarily, as an optional implementation, such as Figure 1 As shown, the injection platform 70 is fixedly connected to the first side of the mounting plate 10; a support platform 11 is provided on the second side of the mounting plate 10, and the driving component 20 is fixedly installed on the support platform 11. It should be noted that... Figure 1The drive member 20 shown is only a section of the drive rod of the drive member 20; for example, as an optional embodiment, the support platform 11 is fixedly connected to the second side of the mounting plate 10; wherein, the first side and the second side are opposite sides of the mounting plate 10.

[0051] A guide rail 30 is fixedly provided on the upper half of the first side of the mounting plate 10; a slider 31 is slidably connected to the guide rail 30; a connector 40 is fixedly connected to the slider 31, and a sensor mounting piece 41 for fixing the contact sensor 50 is provided on the connector 40.

[0052] The drive part 21 of the drive member 20 is fixedly connected to the slider 31 and is used to drive the slider 31 to slide along a predetermined first direction on the guide rail 30.

[0053] In this embodiment, at a predetermined moment after the ceramic cup 60 begins to inject liquid, the driving member 20 drives the driving part 21 to move towards the support platform 11 along the first direction, thereby driving the slider 31 connected to the connecting plate 22 to slide rapidly towards the injection platform 70 on the guide rail 30, so that the contact sensor 50 quickly reaches the predetermined detection position.

[0054] Furthermore, the mounting plate 10 is provided with a liquid injection platform 70 for placing the ceramic cup 60;

[0055] When the ceramic cup 60 is placed in the predetermined cup position on the dispensing platform 70 (i.e., as shown in the image) Figure 1 When the ceramic cup 60 is positioned as shown, the contact sensor 50 is located directly above the ceramic cup rod 61;

[0056] When the ceramic cup 60 begins to be filled with liquid, the ceramic cup rod 61 gradually penetrates into the interior of the ceramic cup 60 along the first direction.

[0057] As a preferred embodiment, the first end of the ceramic cup rod 61 ( Figure 1 A rubber pad 62 is also fixedly installed at the upper end of the ceramic cup rod 61 to buffer the impact force of the contact sensor 50. The rubber pad 62 can effectively reduce the impact force of the contact sensor 50 and prevent the contact sensor 50 from being damaged.

[0058] Furthermore, an L-shaped connecting plate 22 is provided on the slider 31;

[0059] The connecting plate 22 includes a first plate segment that is detachably fixedly connected to the connecting member 40, and a second plate segment that is fixedly connected to the driving part 21. The second plate segment has a clearance through hole 221 in the center for avoiding the mounting plate 10 and the guide slide rail 30.

[0060] In the process that the contact sensor 50 is driven to move to the predetermined detection position, the first end of the installation plate 10 and the first end of the guide slide rail 30 can pass through the avoiding through hole 221.

[0061] It should be noted that, in the embodiment, the time taken by the first end of the ceramic cup rod 61 from its initial position to the target position is the liquid injection time of the ceramic cup 60; the predetermined time is the time when the ceramic cup 60 starts liquid injection plus a predetermined time threshold value;

[0062] When the liquid injection time is less than or equal to the time threshold value, the contact sensor 50 does not contact the ceramic cup rod 61 (the rubber pad 62). Only when the jamming phenomenon occurs, causing the liquid injection time to be too long, i.e. the liquid injection time is greater than the time threshold value, the contact sensor 50 will contact the ceramic cup rod 61 (the rubber pad 62).

[0063] Illustratively, as an optional implementation, the driving member 20 is a pneumatic cylinder or a linear motor.

[0064] Illustratively, as an optional implementation, the contact sensor 50 is an LED type contact sensor, more specifically, the LED type contact sensor is a CS linear contact sensor.

[0065] In summary, the device for identifying ceramic cup jamming provided in the embodiment achieves the needs of simplifying the operation and maintaining the efficient detection; by installing the contact sensor, the motion abnormality of the liquid injection equipment can be detected, such as the change of the displacement speed (or displacement time), and whether the jamming phenomenon exists can be judged accordingly; the device can identify the problem of the liquid injection ceramic cup jamming in time, and can effectively improve the production efficiency and product quality of the lithium ion battery.

[0066] Embodiment two:

[0067] The embodiment provides a liquid injection machine, which comprises a control system, and the control system is electrically connected with the device for identifying ceramic cup jamming.

[0068] More specifically, the control system is further electrically connected with a liquid injection adjusting device for controlling the liquid injection speed of the ceramic cup 60.

[0069] When the control system receives the prompt signal, an alarm signal is sent, and / or an adjusting signal is sent to the liquid injection adjusting device to adjust the liquid injection speed to ensure that the liquid injection of the ceramic cup 60 can be carried out normally.

[0070] The embodiment can monitor the working state of the ceramic cup 60 in real time by equipping the liquid injection machine with a device for identifying the jamming of the ceramic cup 60; when the device detects the jamming of the ceramic cup 60, the control system can be immediately fed back, and then the alarm or the automatic adjustment of the liquid injection speed is triggered, so as to prevent further pollution; the method for automatically adjusting the liquid injection speed is specifically as follows:

[0071] A basic liquid injection speed is set, and the liquid injection speed is increased or decreased in real time according to the feedback signal of the contact sensor on the basis, so as to match the working condition of the corresponding ceramic cup 60 and ensure that the equipment can always maintain the best working state.

[0072] The above-described and the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for identifying a ceramic cup choke, characterized in that, The drive member (20) is used to drive the contact sensor (50) to move to a predetermined detection position at a predetermined time after the ceramic cup (60) starts liquid injection. When the ceramic cup rod (61) of the ceramic cup (60) does not move to a predetermined target position at the predetermined time, the contact sensor (50) is in contact with the ceramic cup rod (61), and a prompt signal for prompting a jam phenomenon in the liquid injection process is sent.

2. A device for identifying a blockage in a ceramic cup according to claim 1, wherein, The installation plate (10) is further provided with a guide sliding rail (30); the sliding block (31) is slidably connected to the guide sliding rail (30); the connecting piece (40) is fixedly connected to the sliding block (31); and the sensor mounting piece (41) for fixedly mounting the contact sensor (50) is arranged on the connecting piece (40). The driving part (21) of the drive member (20) is fixedly connected to the sliding block (31) and is used to drive the sliding block (31) to slide along a predetermined first direction on the guide sliding rail (30).

3. A device for identifying a blockage in a ceramic cup according to claim 2, wherein, The installation plate (10) is provided with a liquid injection table (70) for placing the ceramic cup (60); when the ceramic cup (60) is placed at a predetermined cup position on the liquid injection table (70), the contact sensor (50) is located directly above the ceramic cup rod (61). When the ceramic cup (60) starts liquid injection, the ceramic cup rod (61) gradually penetrates into the interior of the ceramic cup (60) along the first direction.

4. A device for identifying a blockage in a ceramic cup according to claim 3, wherein, The connecting plate (22) arranged on the sliding block (31) is in an L shape. The connecting plate (22) comprises a first plate segment which is detachably fixedly connected to the connecting piece (40), and a second plate segment which is fixedly connected to the driving part (21); and a avoiding through hole (221) for avoiding the installation plate (10) and the guide sliding rail (30) is arranged in the center of the second plate segment. During the movement of the contact sensor (50) to the predetermined detection position, the first end of the installation plate (10) and the first end of the guide sliding rail (30) can pass through the avoiding through hole (221).

5. A device for identifying a blockage in a ceramic cup according to claim 4, wherein, The liquid injection table (70) and the guide sliding rail (30) are arranged on the first side of the installation plate (10), the second side of the installation plate (10) is fixedly provided with a supporting table (11), and the drive member (20) is fixedly mounted on the supporting table (11); wherein the first side and the second side are opposite sides of the installation plate (10). At a predetermined time after the ceramic cup (60) starts liquid injection, the drive member (20) drives the driving part (21) to move along the first direction towards the supporting table (11), thereby driving the sliding block (31) connected to the connecting plate (22) to quickly slide on the guide sliding rail (30) towards the liquid injection table (70), so that the contact sensor (50) quickly reaches the predetermined detection position.

6. A device for identifying a blockage in a ceramic cup according to claim 5, wherein, The first end of the ceramic cup rod (61) is further fixedly provided with a rubber pad (62), and the time taken by the first end of the ceramic cup rod (61) from its initial position to the target position is the liquid injection time of the ceramic cup (60); the predetermined time is the time when the ceramic cup (60) starts to inject liquid plus a predetermined time threshold value; When the liquid injection time is less than or equal to the time threshold value, the contact sensor (50) is not in contact with the rubber pad (62).

7. A device for identifying a blockage in a ceramic cup according to claim 1, wherein, The driving member (20) is a pneumatic cylinder or a linear motor.

8. A device for identifying a blockage in a ceramic cup according to claim 1, wherein, The contact sensor (50) is an LED type contact sensor.

9. A liquid injection machine comprising a control system, characterized in that The control system is electrically connected with a device for identifying ceramic cup blockage according to any one of claims 1-8.

10. The liquid injection machine of claim 9, wherein, The control system is further electrically connected with a liquid injection adjusting device for controlling the liquid injection speed of the ceramic cup (60); When the control system receives the prompt signal, an alarm signal is sent, and / or an adjusting signal is sent to the liquid injection adjusting device to adjust the liquid injection speed to ensure that the liquid injection of the ceramic cup (60) can proceed normally.

Images