Plasma cleaning device for vehicle power battery

Abstract

The utility model discloses a vehicle power battery plasma cleaning device, which belongs to the field of battery ion cleaning, aims to solve the problem of plasma cleaning of battery cells and sub-modules, and comprises a battery cell conveying mechanism, a sub-module conveying mechanism, a first plasma cleaning mechanism and a second plasma cleaning mechanism, the battery cell conveying mechanism comprises a first guide rail assembly and a battery cell positioning mechanism; the cell positioning mechanism is slidably mounted on the first guide rail assembly; the sub-module conveying mechanism comprises a second guide rail assembly and a sub-module positioning mechanism; the sub-module positioning mechanism is mounted on the second guide rail assembly in a sliding manner; the first plasma cleaning mechanism is arranged close to the first guide rail assembly; the second plasma cleaning mechanism is close to the first guide rail assembly and the second guide rail assembly. According to the plasma cleaning machine, compatible, refined and efficient plasma cleaning can be carried out on the battery cells and the sub-modules, and the purposes of multiple purposes, energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The utility model relates to a plasma cleaning device for a vehicle power battery, belonging to the field of battery ion cleaning. Background Art

[0002] The cells assembled on the existing new energy cell module production line need to be cleaned before they can be installed in the cell module. The current cleaning of the cells is generally done manually, but the stains left on the shell of the cells and the chemical substances in the cells may cause harm to the human body if they are cleaned manually, and there may be a possibility of missed cleaning.

[0003] Although plasma cleaning equipment is also used in the prior art to replace manual cleaning, the plasma cleaning device in the prior art can only achieve simple cleaning and batch cleaning of multiple battery cells, but cannot finely clean the surface of the battery cells, and the cleaning capacity is limited; secondly, the existing plasma cleaning device cannot achieve the function of compatible cleaning of battery cells and sub-modules. Utility Model Content

[0004] Purpose of the utility model: The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a plasma cleaning device for automotive power batteries. Through the linkage of the first plasma cleaning mechanism and the second plasma cleaning mechanism with the battery cell conveying mechanism and the sub-module conveying mechanism, it can simultaneously accommodate the plasma cleaning functions of the battery cells and sub-modules, and perform multi-process, refined and efficient plasma cleaning of the battery cells and sub-modules, thereby achieving the purpose of one machine with multiple uses and energy saving and environmental protection; it solves the problem that the cleaning equipment in the prior art cannot realize the refined cleaning operation of a single battery cell and cannot be compatible with the cleaning operation of the battery sub-module.

[0005] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0006] A plasma cleaning device for a vehicle power battery, comprising:

[0007] A battery cell conveying mechanism, the battery cell conveying mechanism comprising a first guide rail assembly and a battery cell positioning mechanism slidably mounted on the first guide rail assembly;

[0008] A sub-module conveying mechanism, the sub-module conveying mechanism comprising a second guide rail assembly arranged parallel to one side of the first guide rail assembly, and a sub-module positioning mechanism slidably mounted on the second guide rail assembly;

[0009] A first plasma cleaning mechanism, close to the first guide rail assembly, is used to clean a single battery cell on the battery cell positioning mechanism;

[0010] The second plasma cleaning mechanism is close to the first guide rail assembly and the second guide rail assembly, and is used for cleaning a single battery cell on the battery cell conveying mechanism and cleaning a sub-module on the sub-module positioning mechanism.

[0011] The first plasma cleaning mechanism and the second plasma cleaning mechanism are arranged at the battery cell conveying mechanism and the sub-module conveying mechanism. After the battery cell conveying mechanism fixes a single battery cell through the battery cell positioning mechanism, the single battery cell is conveyed to the first plasma cleaning mechanism through the sliding cooperation between the first guide rail assembly and the battery cell positioning mechanism; the sub-module conveying mechanism fixes the sub-module through the sub-module positioning mechanism, and then the sub-module can also be transferred to the second plasma cleaning mechanism through the sliding cooperation between the sub-module positioning mechanism and the second guide rail assembly. The first plasma cleaning mechanism and the second plasma cleaning mechanism can be compatible with plasma cleaning of battery cells and sub-modules through the first plasma cleaning mechanism and the second plasma cleaning mechanism, so as to achieve the purpose of one machine with multiple uses.

[0012] Optionally, the battery cell positioning mechanism includes a mounting seat slidably mounted on the first guide rail assembly, a rotating cylinder connected to the mounting seat, and a positioning slot assembly installed at the power output end of the rotating cylinder;

[0013] The positioning groove assembly includes two sets of symmetrically arranged side positioning parts and a bottom positioning part arranged between the two sets of side positioning parts. The two sets of side positioning parts and the bottom positioning part are both provided with grooves for clamping with three sides of a single battery cell to realize the positioning and fixing of the single battery cell.

[0014] The positioning slot assembly is driven by the power of the rotating cylinder to perform a rotational motion, thereby driving a single battery cell on the positioning slot assembly to perform a multi-faceted rotation relative to the first guide rail assembly.

[0015] When controlling a single battery cell to rotate on multiple sides relative to the first guide rail assembly, the single battery cell can switch the cleaning side relative to the first plasma cleaning mechanism and the second plasma cleaning mechanism at the same time, thereby achieving the purpose of multi-side cleaning.

[0016] Optionally, the sub-module positioning mechanism includes a connecting plate slidably mounted on the second guide rail assembly, a first positioning portion mounted on one end of the connecting plate, and a second positioning portion mounted on the connecting plate and arranged corresponding to the first positioning portion;

[0017] Wherein, the first positioning portion and the second positioning portion are respectively used to abut against the two end surfaces of the sub-module.

[0018] The first positioning portion and the positioning mechanism are controlled to abut against two ends of the sub-module respectively, so as to achieve the positioning effect of the sub-module and the alignment effect of the sub-module units.

[0019] Optionally, the second positioning part includes a positioning tool corresponding to the positioning block and a limiting device connected to the positioning tool; wherein the positioning tool is movably cooperated with the connecting plate and the position of the positioning tool is limited by the limiting device, thereby finally adjusting the relative distance between the first positioning part and the second positioning part.

[0020] The relative distance between the positioning fixture and the first positioning portion is adjusted by the limiting device, so that the spacing between the first positioning portion and the second positioning portion is adjustable, thereby being able to align and position different types of battery modules.

[0021] Optionally, corresponding sides of the first positioning portion and the second positioning portion are covered with an elastic layer for buffering the squeezing force on the sub-module.

[0022] The first positioning portion and the second positioning portion are both in contact with two ends of the sub-module via the elastic layer, thereby preventing the sub-module from being damaged during the extrusion process.

[0023] Optionally, the first guide rail assembly and the second guide rail assembly are respectively fixedly mounted on the same surface of the support mechanism, and the first guide rail assembly and the second guide rail assembly are respectively arranged opposite to each other along the X-axis direction at two ends of the same surface.

[0024] The first guide rail assembly and the second guide rail assembly are arranged relative to each other, so that the cleaning stations of the battery cells and sub-modules can be located at the same end respectively, which is convenient for the cleaning mechanism to be compatible with the plasma cleaning of the battery cells and sub-modules, and at the same time, the battery cells and sub-module loading stations are opposite to each other, which is convenient for the multi-process layout of the products of the cleaning line.

[0025] Optionally, the first plasma cleaning mechanism includes a first cleaning frame fixedly mounted on the support mechanism and located above the first guide rail assembly and the second guide rail assembly, a first motor fixedly mounted on the first cleaning frame, a first plasma cleaning head mounted on the power end of the first motor, and a first exhaust gas collection pipe fixed on the first cleaning frame and opening toward the battery cell conveying mechanism;

[0026] Among them, the first plasma cleaning head adjusts the relative angle with the first guide rail assembly under the drive of the first motor, and can achieve adjustment in multiple angle ranges when cleaning a single battery cell on the first guide rail assembly, thereby expanding the cleaning operation range from the top of a single battery cell to meet the cleaning needs of various types of battery cells. At the same time, during the cleaning process, the waste gas generated by plasma cleaning is recovered and treated through the first waste gas collection pipe to achieve an environmental protection effect.

[0027] Optionally, the second plasma cleaning mechanism includes a second cleaning frame fixedly mounted on the supporting mechanism and located on one side of the first cleaning frame, a first Y-axis moving mechanism fixedly mounted on the second cleaning frame, a Z-axis lifting device mounted on the first Y-axis moving mechanism, a second Y-axis moving mechanism mounted on the Z-axis lifting device, a fourth motor and a fifth motor respectively slidably engaged with the second Y-axis moving mechanism, and a second exhaust gas collection pipe and a third exhaust gas collection pipe respectively fixedly mounted on one side of the fourth motor and the fifth motor;

[0028] The first Y-axis moving mechanism is used to drive the Z-axis lifting device to move in the Y-axis direction, the Z-axis lifting device is used to drive the second Y-axis moving mechanism to move in the Z-axis direction, and the second Y-axis moving mechanism is used to drive the fourth motor and the fifth motor to move relative to each other in the Y-axis direction.

[0029] The first Y-axis moving mechanism is controlled to perform linear motion, thereby driving the Z-axis lifting device, the second Y-axis moving mechanism, the fourth motor, the fifth motor, the second exhaust gas collection pipe and the third exhaust gas collection pipe to perform horizontal motion; the Z-axis lifting device is controlled to perform lifting motion, thereby adjusting the height of the second Y-axis moving mechanism, the fourth motor, the fifth motor, the second exhaust gas collection pipe and the third exhaust gas collection pipe; when the second Y-axis moving mechanism is controlled to perform relative motion, the spacing between the fourth motor and the fifth motor and the second exhaust gas collection pipe and the third exhaust gas collection pipe can be adjusted, so that the second plasma cleaning mechanism can perform fine positioning of the battery cells and sub-modules on different surfaces, heights and dimensions and orderly switch the spatial position of the cleaning points, and at the same time recycle the exhaust gas generated by plasma cleaning to achieve an environmentally friendly effect.

[0030] Optionally, the power end of the fourth motor is connected to the second plasma cleaning head, and is used to drive the second plasma cleaning head to perform multi-range angle adjustment relative to one side of the first guide rail assembly and the second guide rail assembly;

[0031] The power end of the fifth motor is connected to the third plasma cleaning head, and is used to drive the third plasma cleaning head to perform multi-range angle adjustment relative to the other side of the first guide rail assembly and the second guide rail assembly; thereby achieving high-precision and multi-dimensional positioning cleaning of the battery cells and sub-modules.

[0032] Optionally, the first Y-axis moving mechanism includes a second motor fixedly mounted on the second cleaning rack, a linear module connected to the second motor and fixedly mounted on the second cleaning rack, and a first slider mounted on the linear module;

[0033] The Z-axis lifting device includes a lifting bracket fixedly connected to the first slider, a third motor fixedly connected to the lifting bracket, a screw assembly connected to the third motor and fixedly mounted on the lifting bracket, and a second slider mounted on the screw assembly;

[0034] The second Y-axis moving mechanism includes a moving bracket fixedly connected to the second slider, two sets of slide rail assemblies symmetrically installed at both ends of the moving bracket close to the supporting mechanism and located on the same straight line, a fourth motor slider and a fifth motor slider respectively slidably connected to the corresponding slide rail assemblies, and a cylinder having one end connected to the fourth motor slider and the other end connected to the fifth motor slider and fixedly connected to the moving bracket;

[0035] The power output by the second motor drives the first slider and the Z-axis lifting device to perform linear motion in the Y-axis direction on the linear module, thereby driving the second plasma cleaning head and the third plasma cleaning head on the second Y-axis moving mechanism to move linearly in the Y-axis direction, so that the second plasma cleaning head and the third plasma cleaning head can be flexibly moved between the first guide rail assembly and the second guide rail assembly, thereby meeting the flexible switching between the battery cell cleaning process and the sub-module cleaning process;

[0036] The third motor drives the second slider and the second Y-axis moving mechanism to reciprocate in the Z-axis direction through the lead screw assembly, and is used to drive the second plasma cleaning head and the third plasma cleaning head to move up and down, and adjust the height range of the second plasma cleaning head and the third plasma cleaning head, thereby improving the compatibility of the cleaning heights of the second plasma cleaning head and the third plasma cleaning head; the slider is slidably connected with the linear module, and is suitable for cleaning cells and sub-modules of different heights;

[0037] The cylinder telescopic movement drives the fourth motor slider or the fifth motor slider to move on the corresponding slide rail assembly, thereby adjusting the spacing between the fourth motor slider and the fifth motor slider, and at the same time, the relative distance between the fourth motor and the fifth motor and the second plasma cleaning head and the third plasma cleaning head can be flexibly changed, which can be suitable for the cleaning of battery cells and sub-modules of different surfaces, sizes or models.

[0038] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0039] Through the linkage of the first plasma cleaning mechanism and the second plasma cleaning mechanism, the battery cell conveying mechanism and the sub-module conveying mechanism, it is possible to perform plasma cleaning of the battery cells and sub-modules. Compared with the existing battery cleaning equipment, multi-process and efficient plasma cleaning of the battery cells and sub-modules is performed, so as to achieve the purpose of multiple uses of one machine, reduce cleaning costs and improve waste gas recovery efficiency, and realize fine cleaning of single battery cells and sub-modules with high precision.

[0040] Two cleaning processes are set for the cleaning of battery cells. The first plasma cleaning mechanism and the rotating cylinder of the battery cell positioning mechanism can realize rapid cleaning of multiple surfaces of the battery cell. The second plasma cleaning mechanism can further realize refined cleaning of multiple surfaces of the battery cell to ensure the cleaning effect and cleaning efficiency.

[0041] For the cleaning of the sub-module, the sub-module is first aligned, positioned and transported in the X-axis direction through the sub-module positioning mechanism, and then the Z-axis lifting device and two sets of Y-axis moving mechanisms in the second plasma cleaning mechanism are linked to achieve multi-dimensional cleaning of the sub-module at different surfaces, heights and angles, accurately and effectively removing impurities such as dust, oil and foreign matter on the surface of the battery module or part of the pole piece, aluminum foil and packaging materials, thereby improving the output capacity and service life of the battery module;

[0042] In addition, the first plasma cleaning mechanism and the second plasma cleaning mechanism are both provided with waste gas collecting pipes, which, after being connected with the waste gas recovery device, can recover and process the waste gas generated by the plasma cleaning, thereby achieving an environmental protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 The figure shows the structure of the utility model vehicle power battery plasma cleaning device;

[0044] Figure 2 The figure shows a schematic diagram of the structure of the battery core positioning mechanism of the utility model;

[0045] Figure 3 Shown is a schematic structural diagram of the first plasma cleaning mechanism of the utility model;

[0046] Figure 4 Shown is a structural schematic diagram of the second plasma cleaning mechanism of the utility model;

[0047] Figure 5 Shown is a schematic structural diagram of the lifting device of the utility model;

[0048] Figure 6 Shown is a structural schematic diagram of the sub-module positioning mechanism of the utility model.

[0049] In the figure: 1: support mechanism; 2: battery cell positioning mechanism; 3: first guide rail assembly; 4: first plasma cleaning mechanism; 5: second plasma cleaning mechanism; 6: sub-module positioning mechanism; 7: second guide rail assembly; 21: positioning slot assembly; 22: single battery cell; 23: rotating cylinder; 41: first plasma cleaning head; 42: first motor; 43: first exhaust gas collecting pipe; 50: second cleaning rack; 51: second motor 52: linear module; 53: Z-axis lifting device; 530: The third motor; 531: the lead screw assembly; 532: the first slider; 533: the second exhaust gas collecting pipe; 534: the fourth motor; 535: the second plasma cleaning head; 536: the cylinder; 537: the third plasma cleaning head; 538: the fifth motor; 539: the third exhaust gas collecting pipe; 54: the first Y-axis moving mechanism; 55: the second Y-axis moving mechanism; 61: the first positioning part; 62: the second positioning part; 621: the positioning tool; 622: the limit device; 63: the sub-module. DETAILED DESCRIPTION

[0050] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0051] This embodiment provides a plasma cleaning device for a vehicle power battery, such as Figure 1 The device shown includes: a cell conveying mechanism, a submodule conveying mechanism, a first plasma cleaning mechanism 4 and a second plasma cleaning mechanism 5, wherein the cell conveying mechanism includes: a first rail assembly 3 and a cell positioning mechanism 2; the first rail assembly 3 is fixedly mounted on the support mechanism 1 and arranged along the X-axis direction, and the cell positioning mechanism 2 is slidably mounted on the first rail assembly 3; thereby, the cell can be positioned and conveyed after positioning. The submodule conveying mechanism includes: a second rail assembly 7 and a submodule positioning mechanism 6; the second rail assembly 7 is also fixedly mounted on the support mechanism 1 and arranged parallel to one side of the first rail assembly 3, and the submodule positioning mechanism 6 is slidably mounted on the second rail assembly 7; thereby, the submodule 63 can be positioned and conveyed. The first plasma cleaning mechanism 4 is installed above the first guide rail assembly 3, and is used to clean the single battery cell 22 on the battery cell positioning mechanism 2; the second plasma cleaning mechanism 5 is installed above the first guide rail assembly 3 and the second guide rail assembly 7, and is used to position and clean the single battery cell 22 on the battery cell positioning mechanism 2 and the sub-module 63 on the sub-module positioning mechanism 6, respectively.

[0052] Preferably, Figure 2The battery cell positioning mechanism 2 shown includes: a mounting seat, a rotating cylinder 23 and a positioning slot assembly 21; wherein the mounting seat is slidably mounted on the first guide rail assembly 3, the rotating cylinder 23 is fixedly connected to the mounting seat, and the positioning slot assembly 21 is installed at the power output end of the rotating cylinder 23; the positioning slot assembly 21 includes: two groups of side positioning parts and a bottom positioning part, the bottom positioning part is fixedly mounted above the rotating cylinder 23, the two groups of side positioning parts are symmetrically arranged relative to the bottom positioning part, and the two groups of side positioning parts and the bottom positioning part are provided with corresponding grooves for clamping with three sides of a single battery cell 22, thereby positioning the single battery cell 22 on three sides; the positioning slot assembly 21 rotates under the power drive of the rotating cylinder 23, thereby driving the single battery cell 22 on the positioning slot assembly 21 to rotate in multiple sides relative to the first guide rail assembly 3.

[0053] Preferably, Figure 6 The submodule positioning mechanism 6 shown includes: a connecting plate, a first positioning portion 61 and a second positioning portion 62; wherein the connecting plate is slidably mounted on the second guide rail assembly 7, the first positioning portion 61 is fixedly mounted on one end of the connecting plate, and the second positioning portion 62 is mounted on the connecting plate and corresponds to the first positioning portion 61; the first positioning portion 61 and the second positioning portion 62 are respectively used to abut against the two end plates of the submodule 63, and the second positioning portion 62 includes: a positioning fixture 621 corresponding to the positioning block, and a limiting device 622 connected to the positioning fixture; the positioning fixture 621 is movably matched with the slide rail on the connecting plate and fixed to the slide rail by the limiting device 622, so as to limit the position of the positioning fixture 621. The second positioning portion 62 adjusts the relative distance with the first positioning portion 61 through the limiting device 622, so as to align and position different types of battery modules.

[0054] Preferably, the first positioning portion 61 and the corresponding sides of the positioning fixture 621 are covered with an elastic layer for buffering the squeezing force on the sub-module 63 to prevent damage to the sub-module 63 during the squeezing process.

[0055] Preferably, the first guide rail assembly 3 and the second guide rail assembly 7 are respectively fixedly mounted on the same surface of the support mechanism 1. The support mechanism 1 is composed of a steel frame and is used to support the entire power battery plasma cleaning device.

[0056] Preferably, Figure 3The first plasma cleaning mechanism 4 shown includes: a first cleaning frame 44, a first motor 42, a first plasma cleaning head 41 and a first exhaust gas collecting pipe 43; wherein, the first cleaning frame 44 is fixedly mounted on the supporting mechanism 1 and is located above the first guide rail assembly 3 and the second guide rail assembly 7, the first motor 42 is fixedly mounted on the first cleaning frame 44, the first plasma cleaning head 41 is mounted on the power end of the first motor 42, and the first exhaust gas collecting pipe 43 is fixed on the first cleaning frame 44 and the opening faces the battery cell conveying mechanism; thus, the first plasma cleaning head 41 in this embodiment adjusts the relative angle with the first guide rail assembly 3 under the drive of the first motor 42, and can achieve multiple angle ranges of adjustment when cleaning a single battery cell 22 on the first guide rail assembly 3, thereby achieving the purpose of expanding the cleaning range.

[0057] Preferably, Figures 4 to 5 The second plasma cleaning mechanism 5 shown includes: a second cleaning frame 50, a first Y-axis moving mechanism 54, a Z-axis lifting device 53, a second Y-axis moving mechanism 55, a fourth motor 534, a fifth motor 538, a second exhaust gas collection pipe 533 and a third exhaust gas collection pipe 539; wherein the second cleaning frame 50 is fixedly mounted on the support mechanism 1 and is located on one side of the first cleaning frame 44, the first Y-axis moving mechanism 54 is fixedly mounted on the second cleaning frame 50, and the first Y-axis moving mechanism 54 is used to drive the Z-axis lifting device 53 to move in the Y-axis direction; the Z-axis lifting device 53 is mounted on the first Y-axis moving mechanism 54. A first Y-axis moving mechanism 54 is mounted on a second Y-axis moving mechanism 55 on a Z-axis lifting device 53, and the Z-axis lifting device 53 is used to drive the second Y-axis moving mechanism 55 to move in the Z-axis direction; the fourth motor 534 and the fifth motor 538 are respectively slidably fitted on the second Y-axis moving mechanism 56, and the second Y-axis moving mechanism 56 is used to drive the fourth motor 534 and the fifth motor 538 to move relative to each other; the second exhaust gas collection pipe 533 and the third exhaust gas collection pipe 539 are respectively fixedly mounted on one side of the fourth motor 534 and the fifth motor 538, and are used to collect the exhaust gas generated during cleaning.

[0058] Preferably, the power end of the fourth motor 534 is connected to the second plasma cleaning head 535, and is used to drive the second plasma cleaning head 535 to perform multi-range angle adjustment relative to one side of the first guide rail assembly 3 and the second guide rail assembly 7; the power end of the fifth motor 538 is connected to the third plasma cleaning head 537, and is used to drive the third plasma cleaning head 537 to perform multi-range angle adjustment relative to the other side of the first guide rail assembly 3 and the second guide rail assembly 7; thereby achieving high-precision and multi-dimensional positioning cleaning of the battery cells and sub-modules 63.

[0059] Preferably, the first Y-axis moving mechanism 54 comprises: a second motor 51, a linear module 52 and a first slider 532; wherein the second motor 51 is fixedly mounted on the second cleaning rack 50, the linear module 52 is connected to the power end of the second motor 51 and is fixedly mounted on the second cleaning rack 50, the first slider 532 is mounted on the linear module 52, and the second motor 51 drives the first slider 532 on the linear module 52 to move in the Y-axis direction;

[0060] The Z-axis lifting device 53 includes: a lifting bracket, a third motor 530, a screw assembly 531 and a second slider 5310; wherein the lifting bracket is fixedly connected to the first slider 532, the third motor 530 is fixedly connected to the lifting bracket, the screw assembly 531 is connected to the power end of the third motor 530 and is fixedly installed on the lifting bracket, and the second slider 5310 is installed on the screw assembly 531 and moves linearly with the rotation of the screw; thereby, the Z-axis lifting device 53 moves along the Y-axis with the first slider 532, and the power of the third motor 530 is transmitted through the screw, driving the second slider 5310 on the screw to move in the Z-axis direction;

[0061] The second Y-axis moving mechanism 56 includes: a moving bracket 5311, two sets of slide rail assemblies, a fourth motor 534 slider, a fifth motor 538 slider and a cylinder 536; wherein the moving bracket 5311 is fixedly connected to the second slider 5310, the two sets of slide rail assemblies are symmetrically installed at both ends of the moving bracket close to the support mechanism 1 and are located on the same straight line, the fourth motor 534 slider and the fifth motor 538 slider are respectively slidably connected to the corresponding slide rail assemblies, one end of the cylinder 536 is connected to the fourth motor 534 slider, and the other end is connected to the fifth motor 538 slider. In addition, the cylinder 536 is fixedly connected to the moving bracket 5311 and the air The power end of the cylinder is connected to the fourth motor 534 slider or the fifth motor 538 slider; the ends of the two sets of slide rail assemblies are provided with stoppers, which can limit the stroke of the fourth motor 534 slider and the fifth motor 538 slider. The telescopic movement of the cylinder 536 drives the fourth motor 534 slider or the fifth motor 538 slider to move relatively on the corresponding slide rail assembly. The fourth motor 534 slider is fixedly connected to the fourth motor 534, and the fifth motor 538 slider is fixedly connected to the fifth motor 538, so as to finally adjust the interval between the second plasma cleaning head 535 (fourth motor 534) and the third plasma cleaning head 537 (fifth motor 538).

[0062] Working principle:

[0063] When a single cell 22 is plasma cleaned, the first plasma cleaning head is fixed in position, the cell positioning mechanism 2 reciprocates on the first rail assembly, and the second plasma cleaning head 535 and the third plasma cleaning head 537 clean the two large faces and the two end faces simultaneously. The specific steps are as follows:

[0064] When the rotating cylinder 23 returns to the direction parallel to the first guide rail assembly 3, the single battery cell 22 is placed in the groove of the positioning groove assembly 21, and the single battery cell 22 is loaded and transported through the first guide rail assembly 3 and the battery cell positioning mechanism 2;

[0065] When a single battery cell 22 is transported to the cleaning position of the first plasma cleaning head 41, the first plasma cleaning head 41 adjusts the relative angle with the first guide rail assembly 3 under the drive of the first motor 42, and performs adjustment cleaning in multiple angle ranges from the top of the single battery cell 22, so as to achieve the purpose of cleaning multiple sides of the single battery cell 22; at the same time, the single battery cell 22 on the first guide rail assembly 3 can also be reciprocated during cleaning, and the position of the first plasma cleaning head 41 remains fixed. By adjusting the distance between the battery cell and the first plasma cleaning head 41, different flushing forces can be obtained to flush different types of dirt.

[0066] Plasma cleaning is performed on the end face and large surface of a single battery cell 22, specifically:

[0067] The single battery cell 22 is transported to the battery cell large surface cleaning position of the second plasma cleaning mechanism 5, at which time the rotating cylinder 23 remains unchanged, and the end surface of the single battery cell 22 is perpendicular to the extension direction of the first guide rail assembly;

[0068] The power output by the second motor 51 drives the first slider 532 and the Z-axis lifting device 53 to move on the linear module 52 close to the battery cell until reaching one end of the end surface of the battery cell 22. When the Z-axis lifting device 53 moves in place along the Y axis, it drives the second plasma cleaning head 535 on the second Y-axis moving mechanism 56 to correspond to one end of the end surface of the single battery cell 22 in the Y-axis direction to reach the initial cleaning position.

[0069] The cylinder 536 in the second Y-axis moving mechanism 56 is retracted, and the slider of the fifth motor 538 is started to move in the Y-axis direction close to the fourth motor on the slide rail assembly, thereby driving the fifth motor 538 and the third plasma cleaning head 537 to correspond to the other end of the end surface of the single battery cell 22 to start cleaning;

[0070] When the second plasma cleaning head 535 moves in the Y-axis direction to the other end of the end surface of the single battery cell 22, the cylinder 536 drives the third plasma cleaning head 537 to return;

[0071] The third motor 530 drives the second slider 5310 and the second Y-axis moving mechanism 56 to move relative to the battery cell in the Z-axis direction through the screw assembly 531, so as to adjust the height of the second plasma cleaning head 535 and the third plasma cleaning head 537. After being lowered to the right position, the second plasma cleaning head 535 starts to clean from the other end of the end face of the single battery cell 22 at the lowered height. The power output by the second motor 51 drives the first slider 532 and the Z-axis lifting device 53 to move in the upper direction of the linear module 52 until the second plasma cleaning head 535 reaches the right position. 35 returns to the initial cleaning position of one end of the end face of the single battery cell 22, and cyclically adjusts the third plasma cleaning head 537 to correspond to the other end of the end face of the single battery cell 22. The cleaning cycle is repeated until the battery cell positioning mechanism 2 drives the single battery cell 22 to move in the opposite direction so that the other end is located at the cleaning position, and the running trajectories of the second plasma cleaning head 535 and the third plasma cleaning head 537 on the Y-axis and Z-axis are circulated again until the second plasma cleaning head 535 and the third plasma cleaning head 537 complete the fine cleaning of the two end faces of the single battery cell 22.

[0072] After the cleaning of both end surfaces of the battery cell is completed, the components of the second plasma cleaning mechanism 5 are reset, and the rotating cylinder 23 is rotated 90° to rotate the large surface of the single battery cell 22 to a direction perpendicular to the first guide rail. At the same time, the cylinder 536 is extended to drive the second plasma cleaning head 535 and the third plasma cleaning head 537 to run in reverse to clean the large surface. The cleaning method is the same as the cleaning method of the battery cell end surface.

[0073] Furthermore, the power output by the second motor 51 drives the first slider 532 and the Z-axis lifting device 53 to move on the linear module 52 close to the battery cell until reaching one end of the large surface of the battery cell. When the Z-axis lifting device 53 moves in place along the Y-axis, it drives the second plasma cleaning head 535 on the second Y-axis moving mechanism 56 to correspond to one end of the large surface of the single battery cell 22 in the Y-axis direction to reach the initial cleaning position.

[0074] The cylinder 536 in the second Y-axis moving mechanism 56 drives the slider of the fifth motor 538 to move away from the fourth motor 534 in the Y-axis direction on the slide rail assembly, thereby driving the fifth motor 538 and the third plasma cleaning head 537 to correspond to the other end of the large surface of the single battery cell 22 to start cleaning. At the same time, the second motor drives the Z-axis lifting device 53 to move along the Y-axis direction;

[0075] When the second plasma cleaning head 535 moves in the Y-axis direction to the other end of the large surface of the single battery cell 22, the cylinder 536 drives the third plasma cleaning head 537 to return;

[0076] The third motor 530 drives the second slider 5310 and the second Y-axis moving mechanism 56 to move relative to the battery cell in the Z-axis direction through the screw assembly 531, so as to adjust the height of the second plasma cleaning head 535 and the third plasma cleaning head 537. After being lowered into place, the second plasma cleaning head 535 starts to clean from the other end of the large surface of the single battery cell 22 at another height. The power output by the second motor 51 drives the first slider 532 and the Z-axis lifting device 53 to move in the upper direction of the linear module 52 until the second plasma cleaning head 535 reaches the upper end of the large surface of the single battery cell 22. 5 Return to the initial cleaning position of one end of the large surface of the single battery cell 22, cyclically adjust the third plasma cleaning head 537 to correspond to the other end of the large surface of the single battery cell 22, and cyclically clean until the battery cell positioning mechanism 2 drives the single battery cell 22 to move in the opposite direction so that the other large surface is located at the cleaning position, and cyclically follow the running tracks of the second plasma cleaning head 535 and the third plasma cleaning head 537 on the Y axis and the Z axis until the second plasma cleaning head 535 and the third plasma cleaning head 537 complete the fine cleaning of the two large surfaces of the single battery cell 22;

[0077] After the large surface of the battery cell 22 is cleaned, the components of the second plasma cleaning mechanism 5 are reset.

[0078] Submodule 63 plasma cleaning steps:

[0079] The submodule 63 is placed in the submodule positioning mechanism 6. After the first positioning portion 61 and the second positioning portion 62 fix and align the end surface of the submodule 63, the submodule 63 is loaded and transported through the second guide rail assembly 7 and the submodule positioning mechanism 6.

[0080] After the submodule 63 is transported by the second guide rail assembly 7 to the large surface cleaning position of the submodule 63 of the second plasma cleaning mechanism 5, the components of the second plasma cleaning mechanism 5 are adjusted;

[0081] Specifically, the power output by the second motor 51 drives the first slider 532 and the Z-axis lifting device 53 to move on the linear module 52 close to the sub-module 63 until reaching one end of the large surface of the sub-module 63. When the Z-axis lifting device 53 moves to a position along the Y axis, it drives the second plasma cleaning head 535 on the second Y-axis moving mechanism 56 to correspond to one end of the large surface of the sub-module 63 in the Y direction to reach the initial cleaning position.

[0082] The cylinder 536 in the second Y-axis moving mechanism 56 drives the slider of the fifth motor 538 to move in the Y-axis direction relative to the fourth motor 534 on the slide rail assembly, thereby driving the fifth motor 538 and the third plasma cleaning head 537 to correspond to the other end of the large surface of the sub-module 63 to start cleaning, and at the same time, the second motor drives the Z-axis lifting device 53 to move along the Y-axis direction;

[0083] When the second plasma cleaning head 535 moves to the other end of the large surface of the sub-module 63 in the Y-axis direction, the cylinder 536 drives the third plasma cleaning head 537 to return to its original position.

[0084] The third motor 530 drives the second slider 5310 and the second Y-axis moving mechanism 56 to move relative to the sub-module 63 in the Z-axis direction through the screw assembly 531 to adjust the height of the second plasma cleaning head 535 and the third plasma cleaning head 537. After being lowered into place, the second plasma cleaning head 535 starts to clean from the other end of the large surface of the sub-module 63 at another height. The power output by the second motor 51 drives the first slider 532 and the Z-axis lifting device 53 to move in the upper direction of the linear module 52 until the second plasma cleaning head 535 reaches the upper end of the second plasma cleaning head 537. 5 Return to the initial cleaning position of one end of the large surface of the submodule 63, cyclically adjust the third plasma cleaning head 537 to correspond to the other end of the large surface of the submodule 63, and cyclically clean until the submodule positioning mechanism 6 drives the submodule 63 to move in the opposite direction, so that the other large surface of the submodule 63 is located at the cleaning position, and cyclically follow the running tracks of the second plasma cleaning head 535 and the third plasma cleaning head 537 on the Y axis and the Z axis again, until the second plasma cleaning head 535 and the third plasma cleaning head 537 complete the fine cleaning of the two large surfaces of the submodule 63;

[0085] After the cleaning of the two major surfaces of the sub-module 63 is completed, the components of the second plasma cleaning mechanism 5 are reset.

[0086] The cleaning of the two end surfaces of the submodule 63 is as follows:

[0087] The cylinder 536 in the second Y-axis moving mechanism 56 drives the slider of the fourth motor 534 and the slider of the fifth motor 538 to move relative to each other on the two sets of slide rail assemblies until the second plasma cleaning head 535 and the third plasma cleaning head 537 correspond to the end faces of the two side faces of the sub-module 63 respectively, and the distance between the second plasma cleaning head 535 and the third plasma cleaning head 537 is maintained by the cylinder 536, and the position of the sub-module positioning mechanism 6 on the second guide rail assembly 7 is adjusted so that one end of the two end faces of the sub-module 63 corresponds to the second plasma cleaning head 535 and the third plasma cleaning head 537 respectively, and cleaning starts and the sub-module positioning mechanism 6 moves along the X-axis direction;

[0088] When the sub-module 63 moves to the point where the other ends of the two end surfaces of the sub-module 63 correspond to the second plasma cleaning head 535 and the third plasma cleaning head 537 respectively, the third motor 530 drives the second slider 5310 and the second Y-axis moving mechanism 56 to move relative to the sub-module 63 in the Z-axis direction through the screw assembly 531, so as to adjust the height of the second plasma cleaning head 535 and the third plasma cleaning head 537. After the sub-module 63 is lowered into place, the second plasma cleaning head 535 starts to clean from the other end of the two end portions of the sub-module 63 at the lowered height, and makes the second plasma cleaning head 535 and the third plasma cleaning head 537 move in the Z-axis direction relative to the sub-module 63. The sub-module positioning mechanism 6 moves in the opposite direction along the X-axis until the second plasma cleaning head 535 and the third plasma cleaning head 537 return to the initial cleaning end, and cyclically controls the movement trajectory of the sub-module positioning mechanism 6 on the X-axis and the movement trajectory of the second plasma cleaning head 535 and the third plasma cleaning head 537 on the Z-axis until the second plasma cleaning head 535 and the third plasma cleaning head 537 complete the cleaning of the two end surfaces of the sub-module 63, and in this process can achieve two-dimensional switching cleaning of the two end surfaces of the sub-module 63 in the Z-axis and X-axis directions.

[0089] After the cleaning of both end surfaces of the sub-module 63 is completed, the sub-module positioning mechanism 6 and the components in the second plasma cleaning mechanism 5 are reset to their initial positions.

[0090] In summary, the utility model can realize plasma cleaning of the battery cell and the submodule 63 through the linkage of the first plasma cleaning mechanism 4 and the second plasma cleaning mechanism 5, the battery cell conveying mechanism and the submodule conveying mechanism. Compared with the existing battery cleaning equipment, the battery cell and the submodule 63 are plasma cleaned in multiple processes and efficiently, so as to achieve the purpose of one machine for multiple uses, reduce cleaning costs and improve waste gas recovery efficiency, and can realize multi-faceted and refined cleaning of a single battery cell 22 and a submodule 63 with high precision. Two cleaning processes are set for the cleaning of the battery cell. The first plasma cleaning mechanism 4 and the rotating cylinder 23 of the battery cell positioning mechanism 2 can realize rapid cleaning of multiple surfaces of the battery cell, and the second plasma cleaning mechanism 5 can further realize refined cleaning of multiple surfaces of the battery cell, so as to ensure the cleaning effect and cleaning efficiency. For the cleaning of the sub-module 63, the sub-module 63 is first aligned and positioned by the sub-module positioning mechanism 6, and then the lifting device and the horizontal moving mechanism in the second plasma cleaning mechanism 5 are linked to achieve multi-dimensional cleaning of the sub-module 63 on different surfaces, heights and angles, and accurately and effectively remove impurities such as dust, oil stains and foreign matter on the surface of the battery module or part of the pole piece, aluminum foil and packaging materials, thereby improving the output capacity and service life of the battery module; in addition, the first plasma cleaning mechanism 4 and the second plasma cleaning mechanism 5 are both provided with waste gas collection pipes, which, after being connected to the waste gas recovery device, can recycle and treat the waste gas generated by plasma cleaning, thereby achieving an environmentally friendly effect.

[0091] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0092] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A plasma cleaning device for a vehicle power battery, characterized in that: include: A battery cell conveying mechanism, the battery cell conveying mechanism comprising a first guide rail assembly and a battery cell positioning mechanism slidably mounted on the first guide rail assembly; A sub-module conveying mechanism, the sub-module conveying mechanism comprising a second guide rail assembly arranged parallel to one side of the first guide rail assembly, and a sub-module positioning mechanism slidably mounted on the second guide rail assembly; A first plasma cleaning mechanism, close to the first guide rail assembly, is used to clean a single battery cell on the battery cell positioning mechanism; The second plasma cleaning mechanism is close to the first guide rail assembly and the second guide rail assembly, and is used for cleaning a single battery cell on the battery cell conveying mechanism and cleaning a sub-module on the sub-module positioning mechanism.

2. The vehicle power battery plasma cleaning device according to claim 1 is characterized in that: The battery core positioning mechanism comprises a mounting seat slidably mounted on the first guide rail assembly, a rotating cylinder connected to the mounting seat, and a positioning slot assembly installed at the power output end of the rotating cylinder; The positioning groove assembly includes two sets of symmetrically arranged side positioning parts and a bottom positioning part arranged between the two sets of side positioning parts, and the two sets of side positioning parts and the bottom positioning part are both provided with grooves for clamping with three sides of a single battery cell; The positioning slot assembly is driven by the power of the rotating cylinder to rotate, thereby driving a single battery cell on the positioning slot assembly to rotate relative to the first guide rail assembly.

3. The vehicle power battery plasma cleaning device according to claim 1 is characterized in that: The sub-module positioning mechanism comprises a connecting plate slidably mounted on the second guide rail assembly, a first positioning portion mounted on one end of the connecting plate, and a second positioning portion mounted on the connecting plate and arranged corresponding to the first positioning portion; Wherein, the first positioning portion and the second positioning portion are respectively used to abut against the two end surfaces of the sub-module.

4. The vehicle power battery plasma cleaning device according to claim 3 is characterized in that: The second positioning part includes a positioning tool corresponding to the positioning block and a limiting device connected to the positioning tool; wherein the positioning tool is movably matched with the connecting plate and the position of the positioning tool is limited by the limiting device, and finally the relative distance between the first positioning part and the second positioning part is adjusted.

5. The vehicle power battery plasma cleaning device according to claim 3 is characterized in that: The corresponding sides of the first positioning portion and the second positioning portion are covered with an elastic layer for buffering the squeezing force on the sub-module.

6. The vehicle power battery plasma cleaning device according to claim 1, characterized in that: The first guide rail assembly and the second guide rail assembly are respectively installed on the same surface of the support mechanism, and the first guide rail assembly and the second guide rail assembly are respectively arranged opposite to each other along the X-axis direction at two ends of the same surface.

7. The vehicle power battery plasma cleaning device according to claim 6 is characterized in that: The first plasma cleaning mechanism comprises a first cleaning frame mounted on the supporting mechanism and located above the first guide rail assembly and the second guide rail assembly, a first motor mounted on the first cleaning frame, a first plasma cleaning head connected to the power end of the first motor, and a first exhaust gas collecting pipe connected to the first cleaning frame and opening toward the battery cell conveying mechanism; Wherein, the first plasma cleaning head is driven by the first motor to adjust the relative angle with the first guide rail assembly.

8. The vehicle power battery plasma cleaning device according to claim 7 is characterized in that: The second plasma cleaning mechanism includes a second cleaning frame installed on the supporting mechanism and located on one side of the first cleaning frame, a first Y-axis moving mechanism installed on the second cleaning frame, a Z-axis lifting device connected to the first Y-axis moving mechanism, a second Y-axis moving mechanism connected to the Z-axis lifting device, a fourth motor and a fifth motor respectively slidably matched on the second Y-axis moving mechanism, and a second exhaust gas collection pipe and a third exhaust gas collection pipe respectively installed on one side of the fourth motor and the fifth motor; The first Y-axis moving mechanism is used to drive the Z-axis lifting device to move in the Y-axis direction, the Z-axis lifting device is used to drive the second Y-axis moving mechanism to move in the Z-axis direction, and the second Y-axis moving mechanism is used to drive the fourth motor and the fifth motor to move relative to each other in the Y-axis direction.

9. The vehicle power battery plasma cleaning device according to claim 8, characterized in that: The power end of the fourth motor is connected to the second plasma cleaning head, and is used to drive the second plasma cleaning head to perform multi-range angle adjustment relative to one side of the first guide rail assembly and the second guide rail assembly; The power end of the fifth motor is connected to the third plasma cleaning head, and is used to drive the third plasma cleaning head to perform multi-range angle adjustment relative to the other side of the first guide rail assembly and the second guide rail assembly.

Images