Battery cell cold pressing mechanism and battery cell production equipment

Abstract

The utility model relates to the technical field of lithium battery cells, in particular to a cell cold pressing mechanism and cell production equipment. The battery cell cold pressing mechanism comprises a rack, a motor, a driving assembly, a transmission assembly and a cold pressing plate, the motor is arranged at the top of the rack, an output shaft of the motor extends in the first direction, the driving assembly is connected to the output shaft through a right-angle steering gear so that the motor can drive the driving assembly to rotate, and the transmission assembly is connected to the driving assembly. The cold pressing plate is arranged at the end, away from the driving assembly, of the transmission assembly so that the transmission assembly can drive the cold pressing plate to move in the second direction, and the first direction is perpendicular to the second direction. The battery cell production equipment comprises the battery cell cold pressing mechanism. According to the battery cell cold pressing mechanism and the battery cell production equipment provided by the utility model, the volume of the mechanism and the equipment in the height direction is favorably compressed, and the mechanism and the equipment are convenient to mount and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery cells, in particular to a cell cold pressing mechanism and cell production equipment. Background Art

[0002] In the production process of lithium batteries, after the battery cell is wound, it needs to be cold pressed and shaped. However, the overall structural design of the current battery cell cold pressing mechanism is relatively large, resulting in the battery cell cold pressing mechanism being relatively high in height. The current structural design of the battery cell cold pressing mechanism has at least the following defects: on the one hand, it will cause the overall space occupied to be large, especially the overall height space occupied to be large, wasting the space of the factory; on the other hand, it is not conducive to the maintenance of the battery cell cold pressing mechanism, especially the maintenance of the top of the battery cell cold pressing mechanism. Utility Model Content

[0003] The main purpose of the utility model is to propose a battery cell cold pressing mechanism and battery cell production equipment, aiming to solve the technical problems that the existing battery cell cold pressing mechanism has a relatively large overall design, occupies a large height space, and is inconvenient to repair the top of the mechanism.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a battery core cold pressing mechanism, comprising:

[0005] frame;

[0006] A motor, wherein the motor is arranged on the top of the frame, and an output shaft of the motor is extended along a first direction;

[0007] A drive assembly, the drive assembly being connected to the output shaft via a right-angle steering gear so that the motor drives the drive assembly to rotate;

[0008] A transmission assembly, the transmission assembly being connected to the drive assembly so that the drive assembly drives the transmission assembly to perform lifting motion;

[0009] A cold pressing plate, the cold pressing plate being arranged at one end of the transmission assembly away from the driving assembly, so that the transmission assembly drives the cold pressing plate to move along the second direction;

[0010] The first direction and the second direction are perpendicular to each other.

[0011] In some embodiments, the drive assembly comprises:

[0012] a first synchronous wheel, the first synchronous wheel being connected to the output shaft through the right-angle steering gear;

[0013] A second synchronous wheel, wherein the second synchronous wheel is connected to the first synchronous wheel through a synchronous belt.

[0014] In some embodiments, the drive assembly comprises:

[0015] a first gear connected to the output shaft through the right-angle steering gear;

[0016] The second gear is transmission-connected to the first gear through a rack.

[0017] In some embodiments, the transmission assembly includes:

[0018] A rotating part connected to the inner ring of the second synchronous wheel;

[0019] A lead screw nut, the lead screw nut being arranged on the rotating part so that the lead screw nut rotates along with the rotating part;

[0020] A lead screw, the lead screw being threadedly connected to the lead screw nut so that the rotating lead screw nut drives the lead screw to perform lifting motion;

[0021] Wherein, the cold pressing plate is arranged at an end of the lead screw away from the second synchronous wheel.

[0022] In some embodiments, the frame is provided with a bearing mounting portion, the bearing mounting portion is provided with a rotating bearing, and the rotating bearing is arranged on the outer periphery of the rotating portion.

[0023] In some embodiments, a pressure sensor is provided between the cold press plate and the lead screw.

[0024] In some embodiments, the frame is provided with a guide column, one end of which is connected to the cold press plate;

[0025] Wherein, the guide column is configured to be able to move along the second direction with the cold pressing plate.

[0026] In some embodiments, the guide column and the side wall of the cold press plate are vertically connected.

[0027] In some embodiments, the motor is a servo motor.

[0028] Correspondingly, the utility model also provides a battery cell production equipment, including the battery cell cold pressing mechanism described in any of the above embodiments; and also includes a conveying component, which is arranged on one side of the battery cell cold pressing mechanism along the second direction and is used to convey the battery cell.

[0029] Compared with the prior art, the beneficial effects of the utility model are:

[0030] In the technical solution of the utility model, the arrangement of the motor is improved so that the motor is arranged horizontally on the top of the frame, so that the output shaft of the motor is extended along a first direction (exemplarily, for example, the first direction can be a horizontal direction), and then the drive assembly is connected to the output shaft through a right-angle steering gear. The right-angle steering gear can change the output direction of the output shaft so that the drive assembly can rotate in a direction perpendicular to the extension direction of the output shaft (exemplarily, for example, assuming that the output shaft extends in a horizontal direction and the output shaft rotates along its own axis, the output shaft will rotate in the horizontal direction. Then, through the commutation transmission effect of the right-angle steering gear, the drive assembly can rotate in the vertical direction), the transmission assembly and the drive assembly are directly connected, and the transmission assembly can convert the rotational motion of the drive assembly into an up and down lifting motion. The cold pressing plate is connected to the transmission assembly so that the cold pressing plate can be lifted and lowered together with the transmission assembly, thereby achieving the purpose of continuous cold pressing of the battery cells.

[0031] The improved structure of the battery cell cold pressing mechanism in the utility model is advantageous for compressing the height of the battery cell cold pressing mechanism in the height direction, reducing the volume of the battery cell cold pressing mechanism in the height direction, thereby facilitating saving the height space occupied by the battery cell cold pressing mechanism as a whole. In addition, since the overall height of the battery cell cold pressing mechanism is relatively low, it is convenient to install and maintain the battery cell cold pressing mechanism (including installing and maintaining the top of the battery cell cold pressing mechanism) without the need for additional auxiliary climbing devices.

[0032] Furthermore, since the height of the battery cell cold pressing mechanism will be reduced, the center of gravity of the battery cell cold pressing mechanism will move downward, which is conducive to improving the stability of the battery cell cold pressing mechanism during operation and preventing the battery cell cold pressing mechanism from generating strong vibrations and affecting the cold pressing effect on the battery cell.

[0033] The battery cell production equipment using the battery cell cold pressing mechanism can compress the height of the battery cell production equipment, reduce the overall volume of the battery cell production equipment, and facilitate the installation and maintenance of the battery cell production equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the overall structure of a battery core cold pressing mechanism provided by an embodiment of the utility model;

[0036] Figure 2A cross-sectional view of the overall structure of a battery core cold pressing mechanism provided by an embodiment of the utility model;

[0037] Figure 3 An exploded cross-sectional view of the overall structure of a battery cell cold pressing mechanism provided in one embodiment of the utility model.

[0038] Description of Figure Numbers:

[0039] 100-rack;

[0040] 110-bearing mounting portion; 120-guide column;

[0041] 111-rotating bearing;

[0042] 200-motor;

[0043] 300- driving assembly;

[0044] 310-first synchronous wheel; 320-second synchronous wheel; 330-synchronous belt;

[0045] 400-transmission assembly;

[0046] 410-rotating part; 420-screw nut; 430-screw;

[0047] 500-cold pressed board;

[0048] 600-right angle steering gear;

[0049] 700-pressure sensor;

[0050] X-first direction;

[0051] Y - Second direction.

[0052] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0055] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0056] In the lithium battery production process, after the battery cell is wound, it needs to be cold pressed and shaped. However, the overall structural design of the current battery cell cold pressing mechanism is relatively large, resulting in the battery cell cold pressing mechanism being relatively high in height. The current structural design of the battery cell cold pressing mechanism has at least the following defects: on the one hand, it will cause the overall space occupied to be large, especially the overall height space occupied to be large, wasting the space of the factory; on the other hand, it is not conducive to the maintenance of the battery cell cold pressing mechanism, especially the maintenance of the top of the battery cell cold pressing mechanism.

[0057] In order to solve the technical problems that the overall design of the existing battery cell cold pressing mechanism is relatively large, occupies a large height space, and is inconvenient to repair the top of the mechanism, refer to Figures 1 to 3, an embodiment of the utility model provides a battery cell cold pressing mechanism, including a frame 100, a motor 200, a drive assembly 300, a transmission assembly 400 and a cold pressing plate 500, wherein the motor 200 is arranged at the top of the frame 100, and the output shaft of the motor 200 is extended along the first direction X, the drive assembly 300 is connected to the output shaft through a right-angle steering gear 600, so that the motor 200 drives the drive assembly 300 to rotate, the transmission assembly 400 is connected to the drive assembly 300, so that the drive assembly 300 drives the transmission assembly 400 to move up and down, and the cold pressing plate 500 is arranged at one end of the transmission assembly 400 away from the drive assembly 300, so that the transmission assembly 400 drives the cold pressing plate 500 to move along the second direction Y. Wherein, the first direction X and the second direction Y are perpendicular to each other. Exemplarily, for example, the first direction X can refer to the horizontal direction, and the second direction Y can refer to the vertical direction.

[0058] Specifically, since the motor 200 is usually designed to be relatively long in the direction in which the output shaft extends, if the output shaft is directly connected to the drive assembly 300 and the output shaft is used to drive the drive assembly 300 to rotate, the battery cell cold pressing mechanism will be relatively high in the height direction, thereby causing the above-mentioned problem. In order to solve the above-mentioned problem, in the present embodiment, the arrangement of the motor 200 is improved, so that the motor 200 is arranged horizontally on the top of the frame 100, so that the output shaft of the motor 200 is extended along the first direction X (i.e., the horizontal direction), and then the drive assembly 300 is connected to the output shaft through the right-angle steering gear 600. The right-angle steering gear 600 can change the output direction of the output shaft, so that the drive assembly 300 can rotate in a direction perpendicular to the extension direction of the output shaft (shown in FIG. 1 ). For example, assuming that the output shaft extends in the horizontal direction and the output shaft rotates along its own axis, the output shaft will rotate in the horizontal direction. Then, through the reversing transmission effect of the right-angle steering gear 600, the drive assembly 300 can rotate in the vertical direction), the transmission assembly 400 and the drive assembly 300 are directly connected, and the transmission assembly 400 can convert the rotational motion of the drive assembly 300 into an up and down lifting motion, and the cold press plate 500 is connected to the transmission assembly 400 (for example, the cold press plate 500 can be connected to the transmission assembly 400 by bolts to facilitate the installation, removal and replacement of the cold press plate 500), so that the cold press plate 500 can be lifted and lowered together with the transmission assembly 400, thereby achieving the purpose of continuous cold pressing of the battery cells.

[0059] The improved structure of the battery cell cold pressing mechanism in this embodiment is used to compress the height of the battery cell cold pressing mechanism in the height direction, reduce the volume of the battery cell cold pressing mechanism in the height direction, and thus save the height space occupied by the battery cell cold pressing mechanism as a whole. In addition, since the overall height of the battery cell cold pressing mechanism is relatively low, it is convenient to install and repair the battery cell cold pressing mechanism (including installing and repairing the top of the battery cell cold pressing mechanism) without the need for additional auxiliary climbing devices.

[0060] Furthermore, since the height of the battery cell cold pressing mechanism will be reduced, the center of gravity of the battery cell cold pressing mechanism will move downward, which is conducive to improving the stability of the battery cell cold pressing mechanism during operation and preventing the battery cell cold pressing mechanism from generating strong vibrations and affecting the cold pressing effect on the battery cell.

[0061] In some embodiments, reference Figures 1 to 3 The driving assembly 300 includes a first synchronous wheel 310 and a second synchronous wheel 320 . The first synchronous wheel 310 is connected to the output shaft through a right-angle steering gear 600 , and the second synchronous wheel 320 is connected to the first synchronous wheel 310 through a synchronous belt 330 .

[0062] Specifically, in the present embodiment, a specific structure of a driving component 300 is provided. The driving component 300 is a component for transmitting rotational motion, so the driving component 300 can adopt a pulley structure, specifically including a first synchronous wheel 310 and a second synchronous wheel 320. When the output shaft of the motor 200 rotates, the first synchronous wheel 310 is driven to rotate, and driven by the synchronous belt 330, the first synchronous wheel 310 drives the second synchronous wheel 320 to rotate, and the second synchronous wheel 320 provides power to the transmission component 400, so that the transmission component 400 can realize up and down lifting motion.

[0063] The method of using a pulley to transmit rotational motion has, on the one hand, a simple structure, low cost, and easy maintenance; on the other hand, it can buffer and absorb shock, and can alleviate the impact by slipping when overloaded, thus providing overload protection for the battery cell cold pressing mechanism.

[0064] It should be noted that the transmission connection between the first synchronous wheel 310 and the right-angle steering gear 600, and the first synchronous wheel 310 and the second synchronous wheel 320 in this embodiment can refer to the prior art, so it will not be described again here.

[0065] In some embodiments, the drive assembly 300 may further include a first gear and a second gear, wherein the first gear is connected to the output shaft via a right-angle steering gear 600, and the second gear is transmission-connected to the first gear via a rack.

[0066] Specifically, in the present embodiment, another specific structure of the driving component 300 is provided. The driving component 300 is a component for transmitting rotational motion, so the driving component 300 can also adopt a gear structure, specifically including a first gear and a second gear. When the output shaft of the motor 200 rotates, it drives the first gear to rotate, and driven by the rack, the first gear drives the second gear to rotate, and the second gear provides power to the transmission component 400, so that the transmission component 400 can realize up and down lifting motion.

[0067] Furthermore, compared with the method of transmitting rotational motion by pulley, the method of transmitting rotational motion by gear has, on the one hand, a constant instantaneous transmission ratio and accurate and smooth transmission; on the other hand, a compact structure and high working reliability; and on the other hand, a large transmission power and transmission ratio and a long service life.

[0068] It should be noted that the transmission connection between the first gear and the right-angle steering gear 600, and the first gear and the second gear in this embodiment can be referred to in the prior art, so it will not be described in detail here.

[0069] In some embodiments, reference Figures 1 to 3 The transmission assembly 400 includes a rotating part 410, a lead screw nut 420 and a lead screw 430. The rotating part 410 is connected to the inner ring of the second synchronous wheel 320. The lead screw nut 420 is arranged on the rotating part 410 so that the lead screw nut 420 rotates with the rotating part 410. The lead screw 430 is threadedly connected to the lead screw nut 420 so that the rotating lead screw nut 420 drives the lead screw 430 to move up and down. Among them, the cold press plate 500 is arranged at one end of the lead screw 430 away from the second synchronous wheel 320.

[0070] Specifically, in the present embodiment, a specific structure of a transmission component 400 is provided. Taking the structure of the drive component 300 using a pulley as an example, when the motor 200 is turned on, so that the first synchronous wheel 310 drives the second synchronous wheel 320 to rotate, since the rotating part 410 is connected to the inner ring of the second synchronous wheel 320, the rotating part 410 will also rotate with the second synchronous wheel 320. At this time, the rotating part 410 is equivalent to the rotation axis, which will drive the lead screw nut 420 to rotate together. Since the lead screw 430 and the lead screw nut 420 are connected by a thread, while the lead screw nut 420 rotates, the thread can be used to drive the lead screw 430 to move up and down, thereby realizing the cold pressing plate 500 to transmit pressure to the battery cell.

[0071] Furthermore, during the entire transmission process of the battery cell cold pressing mechanism, the screw nut 420 is only responsible for rotation but does not move up and down, and only the screw 430 moves up and down, so the overall structural design of the battery cell cold pressing mechanism can be compressed in the height direction, so that the space in the height direction is compressed very small, thereby ensuring that the overall structure of the battery cell cold pressing mechanism is compact and saving the space occupied by the battery cell cold pressing mechanism.

[0072] In some embodiments, reference Figure 2 and Figure 3 The frame 100 is provided with a bearing mounting portion 110 , and the bearing mounting portion 110 is provided with a rotating bearing 111 , and the rotating bearing 111 is arranged on the outer periphery of the rotating portion 410 .

[0073] Specifically, in order to ensure that the rotating part 410 can rotate smoothly, in the present embodiment, a rotating bearing 111 is provided on the periphery of the rotating part 410. On the one hand, the rotating bearing 111 can provide a low-friction interface for the rotating part 410, ensuring that the friction resistance of the rotating part 410 is minimized when rotating, thereby achieving seamless movement of the rotating part 410, which is beneficial to improving the working efficiency and performance of the battery cell cold pressing mechanism. On the other hand, the rotating bearing 111 can minimize the contact area and evenly distribute the load, thereby effectively avoiding excessive wear of the rotating part 410, which is beneficial to extending the service life of the battery cell cold pressing mechanism. On the other hand, the rotating bearing 111 can prevent the generation of local stress, thereby ensuring that the rotating part 410 is always evenly stressed and can always rotate smoothly, which is beneficial to improving the working stability and reliability of the battery cell cold pressing mechanism.

[0074] It should be noted that the rotating bearing 111 is a conventional structural device in the art, so its specific structure and installation method are not described in detail here.

[0075] In some embodiments, reference Figure 2 and Figure 3 A pressure sensor 700 is provided between the cold pressing plate 500 and the lead screw 430 .

[0076] Specifically, in order to monitor the working pressure of the cold press plate 500 on the battery cell in real time, in the present embodiment, a pressure sensor 700 is arranged between the cold press plate 500 and the lead screw 430. When the lead screw 430 drives the cold press plate 500 to move up and down, the cold press plate 500 will generate pressure on the battery cell. At this time, the pressure sensor 700 can monitor in real time the pressure generated by the cold press plate 500 on the battery cell each time it falls, thereby intuitively displaying the pressure value of the cold press plate 500 on the battery cell in the form of data or images, which is beneficial for on-site staff to visually monitor the pressure output by the cold press plate 500, thereby ensuring that the pressure of the cold press plate 500 on the battery cell is within a normal range of variation, avoiding the pressure output by the cold press plate 500 being too small, resulting in the battery cell not being effectively cold pressed, and also avoiding the pressure output by the cold press plate 500 being too large, resulting in the battery cell being crushed.

[0077] Furthermore, the pressure sensor 700 can be connected to an alarm. When there is a deviation between the pressure range value monitored by the pressure sensor 700 and the set normal pressure range value, the alarm can be controlled to sound an alarm to remind on-site staff to make timely adjustments to the actual output pressure of the battery cell cold pressing mechanism to avoid excessive losses.

[0078] It should be noted that the pressure sensor 700 is a conventional structural device in this field, so its specific structure and installation method are not described in detail here.

[0079] In some embodiments, reference Figures 1 to 3 The frame 100 is provided with a guide column 120, one end of which is connected to the cold plate 500. The guide column 120 is configured to move along the second direction Y with the cold plate 500. Exemplarily, for example, four guide columns 120 may be provided on the frame 100, and the four guide columns 120 are respectively fixed at the four corners of the cold plate 500 to ensure that the cold plate 500 can be balanced in force.

[0080] Specifically, in order to ensure the processing effect of the cold press plate 500 on the battery cell, in this embodiment, the cold press plate 500 is supported by setting a guide column 120. When the cold press plate 500 moves, the guide column 120 can move with the cold press plate 500 to provide a guide for the cold press plate 500 in the movement stroke. Such a structure is, on the one hand, conducive to improving the stability of the cold press plate 500 during movement, preventing the cold press plate 500 from generating large vibrations during movement, thereby affecting the processing effect of the battery cell and reducing the yield rate of the battery cell; on the other hand, it is conducive to improving the accuracy of the cold press plate 500 during movement, preventing the cold press plate 500 from deviating during movement, thereby causing the cold press plate 500 to be unable to accurately cold press the battery cell on the processing station.

[0081] Furthermore, a guide hole may be opened on the frame 100, and the guide column 120 passes through the guide hole and is connected to the cold press plate 500. In order to ensure that the guide column 120 can move smoothly with the cold press plate 500, a linear bearing may be provided at the guide hole, and the guide column 120 is connected to the linear bearing, thereby reducing the friction of the guide column 120 during movement, improving the movement sensitivity of the guide column 120, and extending the service life of the guide column 120.

[0082] Furthermore, in some embodiments, the guide post 120 may be a metal guide post, which is relatively smooth and durable. Preferably, during the actual operation of the battery cell cold pressing mechanism, lubricating oil may be applied to the guide post 120 to ensure the smoothness of the guide post 120 during movement.

[0083] In some embodiments, reference Figure 1 The guide column 120 is vertically connected to the side wall of the cold plate 500. Such a structure is beneficial to improving the follow-up effect between the guide column 120 and the cold plate 500, and there is no indirect force conversion.

[0084] In some embodiments, the motor 200 is a servo motor 200. The servo motor 200 can realize closed-loop control of the position, speed and torque of the battery cell cold pressing mechanism, which is beneficial to improving the working accuracy of the battery cell cold pressing mechanism. On the other hand, the high-speed operation performance of the battery cell cold pressing mechanism can be improved, which is beneficial to improving the working efficiency of the battery cell cold pressing mechanism. On the other hand, the overload resistance of the battery cell cold pressing mechanism can be improved, which is beneficial to ensuring the working stability of the battery cell cold pressing mechanism.

[0085] Correspondingly, another embodiment of the utility model further provides a battery cell production device, which includes the battery cell cold pressing mechanism in any of the above embodiments. The battery cell production device also includes a conveying component, which is arranged on one side of the battery cell cold pressing mechanism along the second direction Y for conveying the battery cell.

[0086] Specifically, in this embodiment, the battery cell cold pressing mechanism and the conveying assembly cooperate to produce the battery cell. When the conveying assembly transports the battery cell to the processing station, the cold pressing plate 500 in the battery cell cold pressing mechanism just falls down to cold press the battery cell, thereby realizing the cold pressing processing of the battery cell. The operating frequency of the conveying assembly and the cold pressing plate 500 can be preset to shorten the waiting interval between the conveying assembly and the cold pressing plate 500 and improve the rhythm of the battery cell production equipment.

[0087] The battery cell production equipment using the battery cell cold pressing mechanism can compress the height of the battery cell production equipment, reduce the overall volume of the battery cell production equipment, and facilitate the installation and maintenance of the battery cell production equipment.

[0088] Benefiting from the improvement of the above-mentioned battery cell cold pressing mechanism, the battery cell production equipment of this embodiment has the same technical effect as the above-mentioned battery cell cold pressing mechanism, which will not be repeated here.

[0089] It should be noted that other contents of the battery cell cold pressing mechanism and battery cell production equipment disclosed in the present utility model can be referred to the prior art and will not be repeated here.

[0090] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The battery cell cold pressing mechanism is characterized by: include: frame; A motor, wherein the motor is arranged on the top of the frame, and an output shaft of the motor is extended along a first direction; A drive assembly, the drive assembly being connected to the output shaft via a right-angle steering gear so that the motor drives the drive assembly to rotate; A transmission assembly, the transmission assembly being connected to the drive assembly so that the drive assembly drives the transmission assembly to perform lifting motion; A cold pressing plate, the cold pressing plate being arranged at one end of the transmission assembly away from the driving assembly, so that the transmission assembly drives the cold pressing plate to move along the second direction; The first direction and the second direction are perpendicular to each other.

2. The battery core cold pressing mechanism according to claim 1, characterized in that: The drive assembly comprises: a first synchronous wheel, the first synchronous wheel being connected to the output shaft through the right-angle steering gear; A second synchronous wheel, wherein the second synchronous wheel is connected to the first synchronous wheel through a synchronous belt.

3. The battery core cold pressing mechanism according to claim 1, characterized in that: The drive assembly comprises: a first gear connected to the output shaft through the right-angle steering gear; The second gear is transmission-connected to the first gear through a rack.

4. The battery core cold pressing mechanism according to claim 2, characterized in that: The transmission assembly comprises: A rotating part connected to the inner ring of the second synchronous wheel; A lead screw nut, the lead screw nut being arranged on the rotating part so that the lead screw nut rotates along with the rotating part; A lead screw, the lead screw being threadedly connected to the lead screw nut so that the rotating lead screw nut drives the lead screw to perform lifting motion; Wherein, the cold pressing plate is arranged at an end of the lead screw away from the second synchronous wheel.

5. The battery core cold pressing mechanism according to claim 4, characterized in that: The frame is provided with a bearing mounting portion, the bearing mounting portion is provided with a rotating bearing, and the rotating bearing is arranged on the outer periphery of the rotating portion.

6. The battery core cold pressing mechanism according to claim 4, characterized in that: A pressure sensor is arranged between the cold pressing plate and the lead screw.

7. The battery core cold pressing mechanism according to claim 1, characterized in that: The frame is provided with a guide column, one end of which is connected to the cold pressing plate; Wherein, the guide column is configured to be able to move along the second direction with the cold pressing plate.

8. The battery core cold pressing mechanism according to claim 7, characterized in that: The guide column and the side wall of the cold pressing plate are vertically connected.

9. The battery core cold pressing mechanism according to any one of claims 1 to 8, characterized in that: The motor is a servo motor.

10. Battery cell production equipment, characterized in that: It comprises the battery cell cold pressing mechanism according to any one of claims 1 to 9; and also comprises a conveying component, wherein the conveying component is arranged on one side of the battery cell cold pressing mechanism along the second direction and is used for conveying the battery cell.

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