Half battery piece processing device
By designing a half-cell processing device, the rotating table and electrode module are used to achieve stable electrical contact with the half-cell, solving the problem of low processing efficiency of existing equipment and achieving efficient and stable half-cell processing.
Patent Information
- Application Number
- CN202421269275.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-05
AI Technical Summary
Existing equipment cannot effectively process half a battery cell, the processing efficiency is low and stable electrical contact with half a battery cell cannot be achieved.
A half-piece cell processing device is designed, including a rotating table, an electrode module and a loading and unloading line. A stable electrical contact is formed with the gate lines of the half-piece cell through the rotating table, and a simultaneous electrical contact between multiple gate lines is achieved through the electrode module and the crimping member.
It realizes efficient processing and stable electrical contact of half-cell cells, improves processing efficiency and production capacity, and meets the processing needs of a large number of half-cell cells.
Smart Images
Figure CN222655664U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of photovoltaic cells, and relates to a half-cell processing device. Background Art
[0002] In the cell production process, the front and back sides of the cell need to be electrically contacted and illuminated at the same time for power detection, laser optimization, etc. Existing equipment usually processes the entire cell and is not suitable for processing half a cell. In addition, existing equipment can only process a single cell at a time, resulting in low processing efficiency. Utility Model Content
[0003] The example of the present application provides a half-cell processing device that can be used to achieve stable electrical contact with the grid lines of a half-cell and also meet the processing requirements of two half-cells that are processed synchronously.
[0004] The solution of this application example is implemented through the following contents.
[0005] In the present application example, a half-cell battery processing device is disclosed, and the half-cell battery processing device includes:
[0006] frame;
[0007] A rotating table connected to the frame can carry half a cell in surface contact and make electrical contact with the grid lines of the half cell, and can place the half cell at different processing stations or loading and unloading stations by rotating;
[0008] An electrode module is arranged beside the rotating table and connected to the frame, the number of the electrode modules is the same as the number of half-cell battery groups at the processing station, each electrode module has a contact wire that can be operated independently or synchronously and a plurality of groups of crimping parts with the same number as the number of the contact wires, wherein the contact wire is used to form an electrical connection with the grid line of the half-cell battery sheet at the processing station and spans across the plurality of grid lines, and two crimping parts in the same group are respectively connected to the two ends of a contact wire and are used to press the connected contact wire against the grid line by applying force; and,
[0009] A loading line, a conveying portion and a unloading line are arranged on the frame. The loading line is used to convey half-cell battery cell groups upward relative to the turntable, and each half-cell battery cell group includes at least two half-cell battery cells. The unloading line is used to convey half-cell battery cell groups downward relative to the turntable. The conveying portion is used to convey half-cell battery cell groups on the loading line, the turntable and the unloading line. The loading line and the unloading line are arranged beside the conveying portion, and the turntable is arranged between the loading line and the unloading line.
[0010] The processing device can meet the processing requirements for a large number of half-cell cells, and can also ensure stable and effective contact with the grid lines of the half-cell cells during the processing process.
[0011] Specifically, the rotating table has multiple switchable workstations, and different workstations can subject the half-cell battery cell on the rotating table to different operations, such as processing operations, transport operations, etc. In this way, the processing and transport operations of the half-cell battery cell do not interfere with each other, the overall operation process is coherent and runs smoothly, and a large number of half-cell battery cells can be tested.
[0012] At the same time, various treatments of half-cells often require electrical contact with the grid lines of the half-cells, so stable electrical contact during the treatment process is very necessary. Correspondingly, the grid lines on the front and back surfaces of the half-cell are contacted through the electrode module and the rotating table. Among them, the rotating table contacts the half-cell surface, thereby providing the posture stability of the half-cell. On this basis, the contact wire of the electrode module contacts the grid lines of the half-cell and can reduce obstruction. At the same time, the crimping piece can provide an extrusion effect, so that under the support of the rotating table and the bidirectional action of the crimping piece, the contact wire is stably in contact with the grid line to avoid virtual connection.
[0013] The handling part of the processing device can carry two pairs of half-cells between the loading line, the rotating table and the unloading line, and the rotating table can rotate to adjust the loading and unloading stations and the half-cell processing stations. Therefore, the various components in the half-cell processing device cooperate as a whole, so that the transmission, transportation, processing and storage of the half-cells are continuous and smooth, and are carried out without interference, realizing the automation and efficient processing of the half-cells.
[0014] The half-cell processing device can perform efficient and diversified processing operations on batches of half-cell cells within the working time limit, meeting the huge demand for half-cell processing capacity.
[0015] Optionally, the crimping piece is a conductor, the spacing between any two adjacent crimping pieces is equal, and any contact wire is used to simultaneously press and contact the grid lines of each half-cell battery cell in the same group.
[0016] Optionally, the half-cell processing device also includes an NG section, which is used to move unqualified half-cell cells away from the unloading line. The loading line, the unloading line and the NG section are arranged in sequence along the conveying section; the NG section includes an NG conveying mechanism and an NG material box. The NG conveying mechanism is used to convey the half-cell cell from the unloading line to the NG material box. There are multiple NG material boxes, which are located on both sides of the NG conveying mechanism.
[0017] Optionally, the half-cell processing device also includes a positioning camera arranged on the frame, the positioning camera is used to determine the position information of the half-cell and / or the layout information of the grid line, and the installation height of the positioning camera is greater than the installation height of the electrode module.
[0018] The positioning camera can be used to determine the relevant information of the half-cell battery and the grid line, which is convenient for adjusting the posture of the half-cell battery and the accuracy and stability of the grid line electrical connection. The positioning camera can avoid interfering with the normal operation of the electrode module and avoiding the impact on efficiency.
[0019] Optionally, the positioning camera and the electrode module are located on the same side of the moving path of the conveying part.
[0020] The positioning camera and electrode module are arranged on the same side to facilitate the configuration of the handling unit and the handling and transmission of half-cell batteries.
[0021] Optionally, the transporting part includes a transverse moving module and a suction cup installed on the driving end of the transverse moving module, the suction cup can absorb and release a group of half-cell battery cells, and the transverse moving module drives the suction cup to transfer the half-cell battery cells between the loading line and the rotating table, and to transfer the half-cell battery cells between the unloading line and the rotating table. The transporting part is also provided with a brush assembly for cleaning the rotating table.
[0022] The suction cup adsorbs the battery to reduce the physical damage to the half-cell.
[0023] The brush assembly cleans the rotating table to ensure effective electrical contact between the battery and the rotating table, and also prevents the half-cell from being dirty, thereby ensuring its photovoltaic effect.
[0024] Optionally, the brush assembly includes a cylinder and a brush, the cylinder is installed beside the suction cup, and the brush is connected to the driving end of the cylinder.
[0025] Optionally, the transverse movement module includes a servo motor and a linear module that match each other; or, the transverse movement module includes a double-motor linear motor.
[0026] Optionally, the suction cups include two sets configured to operate independently and non-interferingly, the first set of suction cups is only used to transfer half-cell battery cell groups between the loading line and the rotating table, and the second set of suction cups is only used to transfer half-cell battery cell groups between the unloading line and the rotating table.
[0027] The cooperation of multiple sets of suction cups can enable multiple stations of the half-cell processing device to work in parallel without interference, thereby improving the half-cell processing efficiency and the utilization rate of the equipment.
[0028] Optionally, the rotating table has a tray for placing a half-cell battery sheet and a DD motor for driving the tray to move, and the tray is provided with an adsorption structure that can switchably adsorb or release the half-cell battery sheet, and the adsorption structure includes an empty slot and / or adsorption holes.
[0029] The adsorption structure of the tray can fix the posture and position of the half-cell, thereby ensuring the certainty of its position, which also helps to determine the layout of its grid lines, thereby improving the stability and effectiveness of the grid line electrical connection.
[0030] Optionally, the tray has a table top consisting of a conductor plate and an insulating plate, the conductor plate is embedded in the insulating plate, and the power supply or electrical detector is electrically connected to the half-cell battery cell group in contact with the conductor plate through the electrically connected conductor plate.
[0031] The insulating plate can electrically insulate the half-cell battery from other structures, while the conductive plate can fully and stably contact the half-cell battery.
[0032] Optionally, the half-cell processing device also includes a light source module that cooperates with the electrode module, and the light source module is used to generate light to illuminate the half-cell group. The light source module is a sunlight simulation device, or a laser module.
[0033] If you need to test the power generation of the cell, you can use a simulated sunlight device. The electrode mechanism and the tray table form electrical contact with the front and back sides of the cell at the same time, and are connected to the electrical detection mechanism respectively to measure the current and voltage of the cell when it is exposed to light, and then calculate the electrical parameters of the cell.
[0034] If the ohmic contact of the battery cell needs to be optimized, a laser module can be used. The electrode mechanism and the table top of the tray form electrical contact with the front and back sides of the battery cell at the same time, and are respectively connected to the positive and negative poles of an external power supply. The power supply applies a reverse voltage to the battery cell, and then the laser module is used to scan the grid line part of the battery cell to improve the power generation efficiency of the battery cell.
[0035] Optionally, the electrode module includes: a lifting mechanism and an electrode mechanism installed on the lifting mechanism; the lifting mechanism drives the electrode mechanism to electrically contact the grid line of the half-cell battery cell, or to detach from the grid line of the half-cell battery cell.
[0036] The half-cell processing device disclosed in the present invention is designed for half-cell cells and can be used to efficiently process a large number of half-cell cells. Moreover, during the processing, it can also form a stable electrical contact with the half-cell cell to facilitate various cell processing operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] For a clearer explanation, the following briefly introduces the drawings required for the description.
[0038] Figure 1a This is a schematic diagram of the structure of the half-cell processing device in the example of this application at a first viewing angle;
[0039] Figure 1b This is a schematic diagram of the structure of the half-cell processing device in the example of this application at a second viewing angle;
[0040] Figure 2 This is a schematic diagram of the structure of the transport unit in the example of this application;
[0041] Figure 3 for Figure 2 A schematic diagram of the structure of the brush and the loading and unloading suction cups in the handling part;
[0042] Figure 4 This is a schematic diagram of the structure of the rotating table in the example of this application;
[0043] Figure 5 Based on the example in this application Figure 1a A schematic structural diagram of another half-cell processing device (including a detection camera) of the half-cell processing device shown;
[0044] Figure 6 Public Figure 5 A schematic diagram of the structure of a detection camera in a half-cell processing device;
[0045] Figure 7 Public Figure 5 A schematic diagram of the structure of a light source module in a half-cell processing device;
[0046] Figure 8 Public Figure 5 Schematic diagram of the structure of the rotating table and the motor module in the half-cell processing device.
[0047] Description of reference numerals:
[0048] 10-half cell processing device;
[0049] 100-frame; 101-loading line; 102-unloading line; 103-handling part;
[0050] 104-rotating table; 105-positioning camera; 106-light source module; 107-NG part; 300-electrode module;
[0051] 1030-transverse track; 1031-cylinder; 1032-brush; 1033-loading and loading suction cup;
[0052] 1041-tray; 1042-insulation board; 1043-copper plate;
[0053] 108- detection camera; 109- walking arm; 110- temporary unloading mechanism;
[0054] 111- unloading mechanism; 112- loading mechanism; 113- main conveying line;
[0055] 201-storage box; 202-flip motor; 203-transport motor;
[0056] 204-rotating shaft; 205-mounting plate. DETAILED DESCRIPTION
[0057] In the production process of half-cells, it is necessary to illuminate the half-cell while making electrical contact with it, so as to perform processes such as power detection and laser optimization. Faced with the increasing demand for half-cells, the existing equipment for processing whole cells can no longer meet the production capacity requirements of half-cells.
[0058] Therefore, it is necessary to design a half-cell battery processing device to quickly process a large number of half-cell batteries.
[0059] As mentioned above, during the processing of half-cells, it is necessary to contact the half-cells (electrically contact the gate lines). Therefore, during the processing, it is very necessary for the half-cell processing device to provide stable contact. For the large number of processing requirements for half-cells, it is expected that the half-cell processing device can process more half-cells per unit time.
[0060] Among them, in response to the large demand for processing half-cell batteries, the processing device can process two half-cell batteries (i.e., a group of half-cell batteries, in other examples a group of half-cell batteries may include at least two half-cell batteries) at the same time, thereby having higher efficiency than processing one half-cell battery at a time.
[0061] In particular, in combination with the structural design of processing two half-cells at the same time, pressure is applied to the front and back sides of the half-cells so that the components in electrical contact with the gate lines can remain stable, thereby providing stable electrical contact to prevent processing failure, distortion, or termination due to failure of electrical contact during the processing.
[0062] The following will be combined Figure 1a , Figure 1b , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The half-cell battery in the example is described below.
[0063] In general, see Figure 1a and Figure 1b The half-cell processing device 10 includes a frame 100, a rotating table 104, a loading line 101, a conveying unit 103, a unloading line 102, a light source module 106, an NG unit 107, and an electrode module 300.
[0064] According to this structure, the use of the half-cell processing device 10, that is, the main use mode or function of each component in the process of processing the half-cell 10 can be briefly described as follows:
[0065] The loading line 101 and the unloading line 102 are used to transport half-cell battery cells. Specifically, the loading line 101 is used to transport half-cell battery cells upward relative to the rotating table 104, and the unloading line 102 is used to transport half-cell battery cells downward relative to the rotating table 104, and the loading line 101 and the unloading line 102 are arranged beside the conveying part 103.
[0066] The NG section 107 is used to recycle unqualified half-cells. Therefore, in the device, the loading line 101 , the unloading line 102 and the NG section 107 are sequentially arranged at intervals along the conveying section 103 .
[0067] The transport unit 103 can be used to transport the half-cell battery from the loading line 101 to the rotating table 104. And the transport unit 103 can also be used to transport the half-cell battery from the rotating table 104 to the unloading line 102. Therefore, it can be understood that the rotating table 104 is arranged between the loading line 101 and the unloading line 102.
[0068] The light source module 106 is used to generate light to illuminate the surface of the half-cell during the process of processing the half-cell.
[0069] Therefore, during processing, a group of half-cells are conveyed by the loading line 101 and conveyed by the conveying unit 103 to the rotating table 104. Subsequently, the rotating table 104 conveys the group of half-cells to the processing station below the light source module 106.
[0070] The positioning camera 105 is located above the rotating platform 104 and is used to capture the position information of the battery cell and / or the grid line layout of the battery cell, that is, to locate the position of the battery cell and the grid line position.
[0071] The electrode module 300 has a component located above the rotating table 104, and the component can form an electrical connection with the surface electrode of the half-cell battery cell. After the half-cell battery cell group is processed, the rotating table 104 returns the group of half-cell batteries to the unloading station. Then, the transport unit 103 transports the processed half-cell battery cell group to the unloading line 102. The NG unit 107 transports the battery cells that need to be NG (No Good) from the unloading line 102 to the material boxes on both sides.
[0072] During the processing, the rotating table 104 and the electrode module can stably make electrical contact with the grid lines on both the front and back surfaces of a group of half-cells, thereby processing two half-cells at the same time and achieving a stable large-volume processing effect.
[0073] Below, each component in the half-cell processing device 10 is described in more detail.
[0074] Rack 100
[0075] See also Figure 1a , Figure 1b and Figure 5 In the half-cell processing device 10, the rack 100 can be implemented as a frame structure. For example, metal rods, plates or sheets are connected by welding or bolts to form a frame structure. Alternatively, a flat surface can be formed by skinning the surface. Alternatively, the rack 100 can be a flat plate fixed on the top with multiple columns, and then a number of columns or frames are arranged on the flat plate as needed.
[0076] Other components in the half-cell processing device 10 are arranged at appropriate positions according to the processing process, and can also be set on the frame 100 by welding or bolting.
[0077] Since the half-cell battery is mainly processed on the turntable 104, other components can be positioned relative to the turntable 104, and during the processing process, the upward and downward work flows are distinguished according to the processing flow relative to the turntable 104, such as the upward movement and downward movement of conveying the half-cell battery.
[0078] Transport Department 103
[0079] See also Figure 2 and Figure 3 The transporting unit 103 is provided for transporting and transferring half-cell battery cell groups (for example, two half-cell battery cells form a group) on the loading line 101 , the rotating table 104 , and the unloading line 102 .
[0080] As an example, the transport unit 103 may include a transverse module and a suction cup (which may be a Bernoulli suction cup) mounted on a driving end of the transverse module. Therefore, the transverse module drives the suction cup to transfer a half-cell battery cell group between the loading line 101 and the rotating table 104, and to transfer a half-cell battery cell group between the unloading line 102 and the rotating table 104.
[0081] The transverse movement module can be matched with the linearly arranged transverse movement track 1030 in the transport part 103, and the transverse direction can be defined by the direction from the loading line 101 to the unloading line 102. In an alternative specific embodiment, the transverse movement module can adopt a structure in which a servo motor and a linear module cooperate; or the transverse movement module can also adopt a double-motor linear motor, each of which drives a clamping claw.
[0082] In the embodiment, the suction cup can respond according to the operation so as to selectively absorb and release a group of half-cell battery cells. Optionally, the Bernoulli suction cup in the transport unit 103 can be used to simultaneously absorb 4 sheets / 4 half-cell battery cells (e.g., after being regularized) on the loading line 101, that is, two groups of half-cell battery cells.
[0083] For example, optionally, the suction cup moves to the top of the two trays 1041 of the rotating table 104, and releases the four half-cell battery sheets to the Figure 4 and the four half-cell batteries are distributed in such a manner that two half-cell batteries are placed on one tray 1041 .
[0084] By cooperating with the spatial distribution of the tray 1041 - appropriately spaced from each other, for example, distributed in a grid and separated from each other - the two clamps can operate without interfering with each other to improve the operating efficiency. That is, the suction cups can include two sets, and are configured to operate independently and non-interferingly. As a distinction, for example, the first set of suction cups is only used to transfer half-cell battery cell groups between the loading line 101 and the rotating table 104, and the second set of suction cups is only used to transfer half-cell battery cell groups between the unloading line 102 and the rotating table 104.
[0085] Furthermore, the transporting part 103 may include two clamps. One of the two clamps may be specifically responsible for loading, that is, moving the half-cell battery cell on the loading line 101 to the tray 1041 of the rotating table 104. In contrast, the other of the two clamps is specifically responsible for unloading, that is, moving the processed half-cell battery cell on the tray 1041 to the unloading line 102.
[0086] In addition to the above structure, the transport part 103 may also be provided with a brush assembly for cleaning the rotating table 104. For example, a brush assembly is installed at one end of the suction cup responsible for unloading of the transport part 103 close to the loading line 101 (and / or, at one end of the suction cup responsible for loading close to the unloading line 102). That is, a brush 1032 is arranged near the loading and unloading suction cup 1033.
[0087] According to the above description, the brush assembly can perform a brushing action on the rotating platform 104. Figure 3 The brush assembly may include a cylinder 1031 and a brush 1032. The cylinder 1031 is installed beside the suction cup, and the brush 1032 is connected to the driving end of the cylinder 1031, such as the end of the piston rod of the cylinder 1031.
[0088] Based on such a structure, when processing a half-cell, after the suction cup absorbs the processed half-cell, the cylinder 1031 of the brush assembly extends out of the driving end, thereby lowering the brush 1032. In this way, when the suction cup moves horizontally, the brush 1032 moves horizontally with it and brushes the table surface of the tray 1041 of the rotating table 104, thereby preventing the table surface from being dirty, so as to ensure that the grid line of the processed half-cell and the rotating table 104 have a good electrical connection effect.
[0089] Rotating table 104
[0090] See also Figure 4 , Figure 8 , like the construction mode of other components in the half-cell, the rotating table 104 is also connected to the frame 100. Moreover, in the process of processing the half-cell, the rotating table 104 can carry the half-cell in a surface contact manner, so that the half-cell placed on the rotating table 104 maintains a stable posture. At the same time, the rotating table 104 can also make electrical contact with the grid line of the half-cell. Therefore, since the rotating table 104 and the half-cell are in surface contact, the posture of the half-cell is more stable, which is more conducive to the stability of the electrical contact.
[0091] In addition, the rotating table 104 can also rotate so that the half-cell is placed in different stations, such as a processing station or a loading and unloading station.
[0092] The rotating platform 104 can be implemented in many ways. For example, the rotating platform 104 can include a tray 1041 and a motor. The motor can be used to drive the tray 1041 to rotate, so as to switch between different workstations. Alternatively, other forms of rotating drive components can be used, such as a servo motor.
[0093] Based on the need to process multiple groups (such as two groups) of half-cell battery cell groups at the same time, the number of trays 1041 in the rotating table 104 is multiple. Furthermore, considering that some half-cell battery cell groups are processed at the processing station, and at the same time, other half-cell battery cell groups can be correspondingly loaded and unloaded at the loading and unloading stations, the rotating table 104 can also be configured with more trays 1041. Therefore, the rotating table 104 can have multiple trays 1041 for placing half-cell battery cell groups and a DD motor, such as one, for driving these trays 1041 to move (such as rotate).
[0094] In the illustrated structure of the present disclosure, the rotating table 104 may include a DD motor and four trays 1041. For example, it may be defined as AC as a group and BD as a group. The four trays 1041 may be constructed in a manner distributed at the four corners of a rectangular area. Thus, when the DD motor rotates 180 degrees each time, while one group of trays 1041 is located at the loading and unloading station, the other group of trays 1041 is located at the processing station.
[0095] In order to better increase the posture stability of the half-cell battery placed on the tray 1041, especially to reduce the risk of unexpected displacement of the half-cell battery on the rotating table 104 during the rotation process, the tray 1041 is also provided with an adsorption structure that can switchably adsorb or release the half-cell battery. As an example, the adsorption structure can be an empty slot, or an adsorption hole, or both.
[0096] On this basis, see Figure 4, the tray 1041 may have a table consisting of a conductor plate (such as a copper plate 1043) and an insulating plate 1042. The conductor plate is embedded in the insulating plate 1042, and the top surfaces of the two constitute a bearing surface for bearing and contacting the battery cell; the equipment or other processing instruments for processing half-cell cells, such as a power supply or an electrical detector, can be electrically connected to the half-cell cell group in contact with the conductor plate by electrically connecting the conductor plate. That is, the grid lines of the half-cell cell are in physical contact with the conductor plate and are conductive to each other, and the power supply or electrical detector as mentioned above is also electrically connected to the conductor plate - indirect electrical communication is achieved through cables or conductors.
[0097] NG section 107
[0098] Considering the manufacturing yield of half-cells, defective products or products with performance not meeting expectations may appear, and these half-cells and products that have passed the test or meet the performance requirements need to be graded or processed in batches. Therefore, the half-cell processing device 10 may include an NG unit 107 (NG / No Good).
[0099] The NG section 107 is used to remove unqualified (or unprocessed, or in need of unloading due to other circumstances) half-cells from the unloading line 102. Therefore, the NG section 107 may include a structure for performing the transporting action, and further, may also include a structure for receiving the transported NG half-cells.
[0100] For example, the NG section 107 may include an NG transport mechanism and an NG material box. The NG transport mechanism is used to transport half-cell batteries from the unloading line 102 to the NG material box, and there are multiple NG material boxes located on both sides of the NG transport mechanism, so that when processing a large number of half-cell batteries, enough NG half-cell batteries can be stored to ensure that the processing process is carried out smoothly and efficiently.
[0101] The above content discusses the situation where the NG half-cells after processing are collected by the NG section 107. In other cases, the half-cells can also be screened by the temporary unloading mechanism 110 before being input to the rotating table 104 for processing - unqualified half-cells can be removed from the main line in advance to avoid them occupying necessary equipment and processes.
[0102] Therefore, see Figure 5 The half-cell processing device 10 further includes a detection mechanism disposed on the frame 100, such as a detection camera 108, more specifically a PL line scan camera. Figure 5 The detection camera 108 in Figure 1b In cooperation with the positioning camera 105 in the conveying unit 103, both of them can be arranged on the same side of the moving path of the conveying unit 103.
[0103] like Figure 5 As shown, the inspection camera 108 inspects the half-cell battery cells passing through the main conveying line 113. For example, the inspection camera 108 is used to determine the hidden cracks of the half-cell battery cells so as to identify the grid lines of the half-cell battery cells for subsequent electrical contact processing.
[0104] Preferably, the processing device may further include a temporary unloading mechanism 110 cooperating with the detection camera 108 (or a more advanced detection mechanism), such as Figure 5 and Figure 6 The temporary unloading mechanism 110 can store the half-cell battery cells that are determined to be unqualified after detection, while the qualified battery cells continue to be transported along the main conveying line 113 .
[0105] like Figure 5 , wherein the main conveyor line 113 passes through a plurality of walking arms 109. For example, the walking arm 109 includes a linear module, a motor, a suction cup, etc. The motor drives the suction cup to move through the linear module to move the battery cells on the main conveyor line 113 to the material box of the unloading mechanism 111, or to move the battery cells in the material box of the loading mechanism 112 to the main conveyor line 113. At the same time, one end of the main conveyor line 113 is connected to the loading line 101 mentioned above.
[0106] The temporary unloading mechanism 110 can cooperate with the unloading mechanism 111 to collect unqualified battery cells, wherein unqualified battery cells refer to battery cells that are determined to be unqualified by the testing mechanism in the present disclosure or other testing mechanisms at a higher level.
[0107] When the material box / storage box 201 of the unloading mechanism 111 is full, the temporary unloading mechanism 110 can start to temporarily store unqualified battery cells; or, the temporary unloading mechanism 110 does not have time to store the unqualified battery cells or the temporary unloading mechanism 110 is full of NG battery cells, and the NG battery cells are stored by the unloading mechanism 111; or, the temporary unloading mechanism 110 and the unloading mechanism 111 work together to store NG battery cells; or, the unloading mechanism 111 is first activated to unload the battery cells, and then the temporary unloading mechanism 110 is activated to unload the battery cells.
[0108] Among them, according to the actual process requirements, the battery cells to be unloaded can be NG battery cells, or they can be battery cells that need to be unloaded due to other circumstances. In some examples, the unloading mechanism 111 can be used to store the battery cells, and the temporary unloading mechanism 110 can be used to store the battery cells at the end of the process. Corresponding to the aforementioned operation mode of the unloading mechanism 111, the loading mechanism 112 can be used to provide the battery cells to be processed to the main conveyor line 113. For example, after manually placing the full battery box to be processed on the loading mechanism 112, the walking arm 109 places the battery cells in the box on the main conveyor line 113.
[0109] Continuing with the above, the structure of the temporary unloading mechanism 110 and the method of storing the half-cell battery cell refer to Figure 6 :The flip motor 202 is mounted on the frame 100, and the shaft 204 is rotatably mounted on the frame 100 through a bearing. The flip motor 202 drives the shaft 204 to rotate through a synchronous belt. The mounting plate 205 is roughly in the shape of a long strip, and a driving roller and a driven roller are installed at both ends. The transmission belt is wound around the driving roller and the driven roller. The conveying motor 203 is mounted on the bottom surface of the mounting plate 205, and drives the driving roller to rotate through a synchronous belt, thereby driving the belt to transport the battery cells. When the flip motor 202 is started, the material-facing end of the mounting plate 205 rises, so that the battery cells that come here fall into the material box, completing the NG storage action.
[0110] Electrode module 300
[0111] In view of cooperating with the rotating platform 104 to electrically contact the grid lines on the front and back sides of the half-cell, the motor module can be arranged beside the rotating platform 104 and connected to the frame 100. Figure 8 .
[0112] Based on the need to process a large number of half-cells, illustratively, the number of electrode modules 300 in the half-cell processing device 10 is the same as the number of half-cell groups in the processing station. In addition, each electrode module 300 has multiple contact wires (which can be metal wires, metal wires, or other conductive linear or filamentary objects) and multiple groups of crimping parts. One contact wire corresponds to a group of crimping parts, and each group of crimping parts includes two crimping parts. That is, the number of groups of crimping parts is the same as the number of contact wires. Each contact wire can be operated at the same time, or one or more of them can be operated at the same time.
[0113] As the name implies, the contact wire is used to form a contact. In the example of the present application, the contact wire is used to form an electrical connection with the grid line of the half-cell at the processing station. The use of the contact wire can avoid the complex structural design of independently configuring electrical contact components for each grid line in a half-cell, such as a leveling or posture adjustment mechanism such as a UVW module that may need to be configured.
[0114] Since the half-cells in the processing station are in groups, and any surface of a half-cell has multiple grid lines, the contact wire spans across multiple grid lines. For example, the contact wire spans across all grid lines on the same side (for example, relative to the table surface of the rotating table 104) of two half-cells in the same group. In other words, any one contact wire can be used to press and contact the grid lines of each half-cell in the same group at the same time.
[0115] In order to improve the contact stability between the contact wire and the grid line, in the example, the contact wire is operated by applying force through the crimping piece. For example, the two ends of a contact wire are respectively connected to two crimping pieces in the same group; it can be understood that the spacing between any two adjacent crimping pieces can be equal, that is, multiple pairs of crimping pieces can be arranged at equal intervals, so that each contact wire is evenly distributed on the surface of the battery cell to form a stable contact.
[0116] In this way, the contact wire is moved away from or close to the surface of the rotating table 104 by the movement of the crimping parts relative to the surface of the rotating table 104, and correspondingly, is also moved close to or away from the grid line of the half-cell. Specifically, when the two crimping parts of the same group move toward the rotating table 104, the contact wire connected to the two crimping parts presses against the grid line. Correspondingly, when the two crimping parts of the same group move away from the rotating table 104, the contact wire connected to the two crimping parts is separated from the grid line.
[0117] In specific implementation, the scheme of moving away from and approaching the rotating table 104 can be implemented by rotating or lifting the crimping piece. Exemplarily, in the illustrated structure, the electrode module 300 is implemented in the form of a lifting operation. Accordingly, the electrode module 300 may include a lifting mechanism and an electrode mechanism installed on the lifting mechanism. The crimping piece can be connected to the electrode mechanism (on the driving end), so that the operation of the contact wire is realized through the lifting action of the lifting mechanism-the lifting mechanism drives the electrode mechanism to electrically contact the grid line of the half-cell battery cell, or to detach from the grid line of the half-cell battery cell.
[0118] In order to process half-cell batteries, it is selected to electrically connect the grid lines to various corresponding instruments and apparatuses. Therefore, it is possible to connect the contact wires to the wires, and guide the wires to appropriate positions such as on the rack 100, and then connect them to the aforementioned instruments there. Alternatively, with the aid of a crimping piece connected to the contact wire, in some examples, the crimping piece is a conductor. Therefore, the instrument used to process half-cell batteries can be electrically connected to the crimping piece to achieve indirect grid line electrical connection. In this embodiment, the crimping piece itself has a certain resistance, so there is no need to set up an additional variable resistor, saving production costs.
[0119] In addition, since a half-cell cell can be subjected to various treatments, and different treatments may require different operations on the half-cell cell, corresponding equipment may be configured; its configuration position may be above the processing station of the rotating table 104. For example, if it is necessary to test the power generation of the cell, a device simulating sunlight may be used. That is, the half-cell cell processing device 10 may also include a light source module 106 that cooperates with the electrode module 300, see Figure 1a , Figure 1b and Figure 7The light source module 106 is used to generate light for illuminating the half-cell group, and the light source module 106 can be instantiated as a sunlight simulation device configured as needed, or a laser module, or both can be configured at the same time 1, but are designed to be used separately.
[0120] Based on this design, if it is necessary to test the power generation of a half-cell, a simulated sunlight device can be used to simulate light to illuminate the half-cell. In addition, the electrode mechanism and the table surface of the tray 1041 on the rotating table 104 are operated so as to simultaneously form electrical contact with the front and back sides of the half-cell and are connected to the electrical detection mechanism respectively. The electrical detection mechanism measures the current and voltage of the cell generated by light, and then calculates the electrical parameters of the cell to determine the quality level of the cell.
[0121] If the ohmic contact of the half-cell needs to be optimized, a laser module can be used. The electrode mechanism and the table of the tray 1041 form electrical contact with the front and back sides of the cell at the same time, and are connected to the positive and negative electrodes of the external power supply respectively. The power supply applies a reverse voltage to the half-cell, and then the laser module is used to scan the grid line part of the half-cell to improve the power generation efficiency of the cell.
[0122] The above describes in detail the structure, features and effects of the present application based on the embodiments shown in the drawings. The above are only preferred embodiments of the present application, but the present application does not limit the scope of implementation to what is shown in the drawings. Any changes made in accordance with the concept of the present application, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present application.
Claims
1. A half-cell battery processing device, characterized in that: include: frame; A rotating table connected to the frame can carry half a cell in surface contact and electrically contact the grid lines of the half cell, and can place the half cell at different processing stations or loading and unloading stations by rotating; An electrode module is arranged beside the rotating table and connected to the frame, the number of the electrode modules is the same as the number of half-cell battery cell groups in the processing station, each of the electrode modules has a contact wire that can be operated independently or synchronously and a plurality of groups of crimping parts with the same number as the number of the contact wires, wherein the contact wire is used to form an electrical connection with the grid lines of the half-cell battery cell in the processing station and spans across a plurality of grid lines, and two crimping parts in the same group are respectively connected to two ends of a contact wire and are used to press the connected contact wire against the grid line by applying force; and, A loading line, a conveying portion and a unloading line are arranged on the frame, the loading line is used to convey the half-cell battery cell group upward relative to the turntable, each half-cell battery cell group includes at least two half-cell battery cells, the unloading line is used to convey the half-cell battery cell group downward relative to the turntable, the conveying portion is used to convey the half-cell battery cell group on the loading line, the turntable and the unloading line, the loading line and the unloading line are arranged beside the conveying portion, and the turntable is arranged between the loading line and the unloading line.
2. The half-cell processing device according to claim 1, characterized in that: The crimping piece is a conductor, and the spacing between any two adjacent crimping pieces is equal. Any contact wire is used to press and contact the grid lines of each half-cell battery sheet in the same group at the same time.
3. The half-cell battery processing device according to claim 1, characterized in that: The half-cell processing device further includes an NG unit, which is used to move unqualified half-cell cells away from the unloading line, and the loading line, the unloading line and the NG unit are sequentially arranged at intervals along the conveying part; The NG section includes an NG transport mechanism and an NG material box. The NG transport mechanism is used to transport half-cell battery cells from the unloading line to the NG material box. There are multiple NG material boxes located on both sides of the NG transport mechanism.
4. The half-cell battery processing device according to claim 1, characterized in that: The half-cell processing device also includes a positioning camera arranged on the frame, and the positioning camera is used to determine the position information of the half-cell and / or the layout information of the grid lines of the half-cell. The installation height of the positioning camera is greater than the installation height of the electrode module.
5. The half-cell battery processing device according to claim 4, characterized in that: The positioning camera and the electrode module are located on the same side of the moving path of the conveying part.
6. The half-cell battery processing device according to claim 1, characterized in that: The transport unit includes a transverse moving module and a suction cup installed at a driving end of the transverse moving module, wherein the suction cup can absorb and release a group of half-cell battery cells, and the transverse moving module drives the suction cup to transfer the half-cell battery cells between the loading line and the rotating table, and to transfer the half-cell battery cells between the unloading line and the rotating table; The transporting part is also provided with a brush assembly for cleaning the rotating platform.
7. The half-cell processing device according to claim 6, characterized in that: The brush assembly comprises a cylinder and a brush. The cylinder is installed beside the suction cup, and the brush is connected to the driving end of the cylinder.
8. The half-cell battery processing device according to claim 6 or 7, characterized in that: The transverse movement module includes a servo motor and a linear module that match each other; or, the transverse movement module includes a double-motor linear motor.
9. The half-cell processing device according to claim 6, characterized in that: The suction cups include two sets and are configured to operate independently and non-interferingly. The first set of suction cups is only used to transfer half-cell battery cell groups between the loading line and the rotating table, and the second set of suction cups is only used to transfer half-cell battery cell groups between the unloading line and the rotating table.
10. The half-cell battery processing device according to claim 1, characterized in that: The rotating platform has a plurality of trays for placing half-cell battery cell groups and a DD motor for driving the trays to move. The trays are provided with an adsorption structure that can switchably adsorb or release the half-cell battery cells.
11. The half-cell battery processing device according to claim 10, characterized in that: The adsorption structure includes empty grooves and / or adsorption holes.
12. The half-cell battery processing device according to claim 10 or 11, characterized in that: The tray has a table top composed of a conductor plate and an insulating plate, wherein the conductor plate is embedded in the insulating plate, and a power source or an electrical detector is electrically connected to the conductor plate to achieve electrical connection with the half-cell battery sheet group in contact with the conductor plate.
13. The half-cell processing device according to claim 1, characterized in that: The half-cell processing device also includes a light source module that cooperates with the electrode module. The light source module is used to generate light to illuminate the half-cell group. The light source module is a sunlight simulation device or a laser module.
14. The half-cell processing device according to claim 1, characterized in that: The electrode module comprises a lifting mechanism and an electrode mechanism installed on the lifting mechanism; The lifting mechanism drives the electrode mechanism to electrically contact the grid lines of the half-cell battery sheet, or to separate from the grid lines of the half-cell battery sheet.