A battery production system

Abstract

This invention discloses a battery production system for producing battery modules. The battery module includes multiple battery cells bonded together with adhesive. The system includes an adhesive curing station for curing the adhesive and a temperature detection device located downstream of the adhesive curing station for detecting the temperature of the outer surface of the battery cells. This invention detects the degree of adhesive curing by measuring the temperature of the outer surface of the battery cells. Furthermore, the temperature probe is a non-contact probe, thus detecting the surface temperature of the battery cells without contact, significantly improving temperature detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to a battery manufacturing system. Background Technology

[0002] In order to enable the battery module to have a large energy capacity, multiple battery cells are set inside the battery module. The multiple battery cells are fixed and connected inside the battery module by fasteners or glue.

[0003] In technologies that use adhesive to fix individual battery cells, the battery module needs to be heated to accelerate adhesive curing. However, existing technologies lack a method to detect the degree of adhesive curing within the battery module, making it impossible to monitor the bonding quality of the individual battery cells within the module. Summary of the Invention

[0004] Therefore, there is a need to provide a battery production system to solve the aforementioned technical problem of not being able to detect the degree of curing of the adhesive inside the battery module.

[0005] To achieve the above objectives, the present invention provides a battery production system for producing battery modules, the battery module comprising multiple battery cells bonded together by adhesive, comprising: an adhesive curing station for curing the adhesive; and a temperature detection device disposed downstream of the adhesive curing station for detecting the temperature of the outer surface of the battery cells.

[0006] In the above technical solution, the battery production system includes an adhesive curing station and a temperature detection device. The temperature detection device is located downstream of the adhesive curing station and is used to detect the temperature of the outer surface of the battery cell. By detecting the temperature of the outer surface of the battery cell, the temperature of the adhesive coated on the outer surface of the battery cell after heating and curing can be fed back. Since the degree of curing of the adhesive on the battery cell is positively correlated with its heating temperature, the degree of curing of the adhesive can be detected by detecting the temperature of the outer surface of the battery cell.

[0007] In some embodiments, the temperature detection device includes a temperature measuring component, which includes a mounting plate and a temperature probe, the temperature probe being adjustablely mounted on the mounting plate.

[0008] In the above technical solution, the temperature probe is adjustablely mounted on the mounting plate, and the position of the temperature probe on the mounting plate can be flexibly adjusted according to the temperature measurement position of the battery module being detected, making it applicable to various types of battery modules and improving temperature detection efficiency.

[0009] In some embodiments, the temperature measuring assembly further includes a distance adjustment mechanism, wherein the temperature measuring probe is mounted on the mounting plate via the distance adjustment mechanism, and the distance adjustment mechanism is used to adjust the spacing of the temperature measuring probe.

[0010] In the above technical solution, the distance between each temperature probe can be easily adjusted through a distance adjustment mechanism to accommodate battery modules of different sizes.

[0011] In some embodiments, the distance adjustment mechanism includes a first slide rail, on which a plurality of temperature probes are disposed, and the positions of the plurality of temperature probes on the first slide rail are adjustable.

[0012] In the above technical solution, the position of the temperature probe on the first slide rail is adjustable. The position of the temperature probe is adjusted according to the position of the battery cell in the battery module being tested, so that the temperature detection device can be used for battery modules of different sizes.

[0013] In some embodiments, a groove is provided on the first slide rail, and a plurality of temperature probes are slidably connected to the groove.

[0014] In the above technical solution, the temperature probe and the first slide rail are slidably connected by a slide groove, which facilitates the sliding adjustment of the position of the temperature probe on the first slide rail.

[0015] In some embodiments, the temperature probe is connected to a first positioning knob, which is used to adjust the position of the temperature probe on the first slide rail.

[0016] In the above technical solution, the position of the temperature probe on the first slide rail can be adjusted by the first positioning knob to prevent the temperature probe from shifting position, making the position adjustment of the temperature probe more accurate and stable.

[0017] In some embodiments, the distance adjustment mechanism further includes a second slide rail, on which the first slide rail is slidably disposed.

[0018] In the above technical solution, the two ends of the first slide rail are connected to the second slide rail. The position of the first slide rail can be adjusted through the second slide rail, thereby adjusting the position of multiple temperature probes on the first slide rail.

[0019] In some embodiments, the second slide rail includes two slide rails, which are arranged parallel to each other, and the two ends of the first slide rail are slidably connected to the second slide rails respectively.

[0020] In the above technical solution, the two ends of the first slide rail are slidably connected to the second slide rail, making the position adjustment of the first slide rail more stable.

[0021] In some embodiments, the first slide rail is provided with a second positioning knob, which is used to adjust the position of the first slide rail on the second slide rail.

[0022] In the above technical solution, the position of the first slide rail on the second slide rail can be adjusted by the second positioning knob to prevent the position of the first slide rail from shifting, so as to make the position adjustment of the first slide rail more accurate and stable.

[0023] In some embodiments, a protective cover is provided on the outer periphery of the temperature probe.

[0024] In the above technical solution, the protective cover is set on the outer periphery of the temperature measuring probe to prevent the temperature measuring probe from being damaged by impact from external objects.

[0025] In some embodiments, the temperature detection device further includes:

[0026] Base;

[0027] A support rod is mounted on the base, and the support rod connects the temperature measuring component to the base.

[0028] In the above technical solution, the mounting bracket includes a base and a support rod. The mounting bracket has a simple structure and is easy to use.

[0029] In some embodiments, the support rod includes:

[0030] The fixed section is fixedly mounted on the base.

[0031] The movable segment has one end that can be movably connected to the fixed segment;

[0032] The third positioning knob is located at the movable joint between the fixed section and the movable section, and is used to fix the fixed section and the movable section.

[0033] In the above technical solution, the support rod is a telescopic rod and has a second locking knob, so the height of the temperature measuring component can be adjusted, thus facilitating the adjustment of the distance between the temperature measuring component and the battery module under test, and is applicable to battery cells of different heights.

[0034] In some embodiments, the battery production system further includes:

[0035] The first output port is used to output the battery modules that have passed the temperature detection device test;

[0036] The second output port is used to output the battery module that is detected as abnormal by the temperature detection device.

[0037] In the above technical solution, a first output port and a second output port are provided downstream of the detection device, which facilitates the separation of battery modules with abnormal temperature detection from qualified batteries.

[0038] The battery production system described above includes a temperature detection device, which comprises a temperature measuring component and two or more temperature probes. The temperature detection device is located downstream of the adhesive curing station and is used to detect the temperature of the outer surface of the battery cell. Therefore, by detecting the temperature of the outer surface of the battery cell, the temperature of the adhesive coated on the outer surface of the battery cell can be fed back. Since the degree of curing of the adhesive on the battery cell is positively correlated with its heating temperature, the degree of curing of the adhesive can be detected by detecting the temperature of the outer surface of the battery cell. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of a battery production system disclosed in one embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the structure of a battery disclosed in one embodiment of this application;

[0041] Figure 3 This is a schematic diagram of the structure of a battery module disclosed in one embodiment of this application;

[0042] Figure 4 This is a schematic diagram of the structure of a battery cell disclosed in an embodiment of this application;

[0043] Figure 5 This is a schematic diagram of the structure of a temperature detection device disclosed in an embodiment of this application;

[0044] Figure 6 This is a bottom view of a temperature measuring component disclosed in an embodiment of this application;

[0045] Figure 7 This is a schematic diagram of a temperature measuring component disclosed in an embodiment of this application during temperature measurement;

[0046] Explanation of reference numerals in the attached figures:

[0047] 200. Battery;

[0048] 400. Adhesive curing station;

[0049] 300. Transmission device;

[0050] 500. Temperature detection device;

[0051] 301. First output port;

[0052] 302. Second output port;

[0053] 21. Battery module;

[0054] 211. End plate;

[0055] 212. Side panels;

[0056] 213. Glue;

[0057] 22. First box;

[0058] 23. Second box;

[0059] 1. Battery cell;

[0060] 11. Shell;

[0061] 12. End cap;

[0062] 13. Electrode assembly;

[0063] 14. Electrode terminals;

[0064] 121. Injection hole;

[0065] 122. Explosion-proof valve;

[0066] 501. Temperature sensing assembly;

[0067] 502, base;

[0068] 503. Support rod;

[0069] 504. Third positioning knob;

[0070] 505. Data collection device;

[0071] 506. Crossbar;

[0072] 50. Mounting plate;

[0073] 51. Temperature probe;

[0074] 52. First slide rail;

[0075] 521. Slide groove;

[0076] 53. Second slide rail;

[0077] 54. Second positioning knob;

[0078] 511. Protective cover;

[0079] 512. First positioning knob;

[0080] 510. Distance adjustment mechanism; Detailed Implementation

[0081] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed descriptions and accompanying drawings of the following embodiments are used to exemplarily illustrate the principles of this application, but should not be used to limit the scope of this application; that is, this application is not limited to the described embodiments. In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0082] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances.

[0083] In related technologies, battery modules contain multiple individual battery cells, which are fixed together by adhesive. Adjacent battery cells are bonded together with adhesive, as are the sides of the battery cells and the side panels of the battery module. To accelerate adhesive curing, a heating device is used in the adhesive curing station to heat the battery module. However, the applicant's research has found that uneven heating of the battery module often occurs during the heating process, leading to uneven adhesive curing within the battery module and affecting the quality of the battery module. Existing technologies lack a solution for detecting the degree of adhesive curing within the battery module, thus making it impossible to effectively monitor the bonding quality of the battery cells within the battery module.

[0084] Based on the aforementioned problems identified by the applicant, in order to detect the curing status of the adhesive in battery modules, the applicant provides a battery production system. This battery production system is used to detect the surface temperature of the individual battery cells in the battery module after heating in the adhesive curing station, and to determine the curing status of the adhesive within the battery module based on the detected temperature. Since the degree of adhesive curing in the battery module is positively correlated with the heating temperature during curing, detecting the temperature of the outer surface of the battery cells can provide feedback on the temperature of the adhesive coated on the outer surface of the battery cells after heating and curing, thereby determining whether the adhesive in the battery module has cured well, promptly identifying battery modules with poorly cured adhesive, and ensuring the quality of the battery modules. The embodiments of this application are further described below.

[0085] See Figure 1 , Figure 2 and Figure 3 As shown in the figure, this application provides a battery production system. This battery production system is used to produce battery modules 21, which include multiple battery cells 1 bonded together by adhesive 213. The battery production system includes an adhesive curing station 400 and a temperature detection device 500. The adhesive curing station 400 is used to cure the adhesive 213. The temperature detection device 500 is located downstream of the adhesive curing station 400 and is used to detect the temperature of the outer surface of the battery cells 1.

[0086] In this context, "downstream" refers to the production process of battery module 21, not a specific spatial location. The location of the previous process in the production of battery module 21 is the upstream location of the next process, and the location of the next process is the downstream location of the current process. Therefore, the temperature detection device 500 is located downstream of the adhesive curing station 400, meaning the battery module 21 is located after being heated and cured by the adhesive curing station 400. Figure 1 As shown, the direction pointed to by arrow X is the downstream direction of the adhesive curing station 400 in this embodiment.

[0087] The adhesive curing station 400 is used to heat the battery module 21, thereby accelerating the curing of the adhesive 213 inside the battery module 21. The adhesive curing station 400 is provided with an inlet and an outlet. The battery module 21 to be cured is transferred into the adhesive curing station 400 through the inlet, and after being heated to a preset time or preset temperature, it is output out of the adhesive curing station 400 through the outlet. The position of the battery module 21 to be cured relative to the adhesive curing station 400 is upstream of the adhesive curing station 400, while the position of the battery module 21 after being heated by the adhesive curing station 400 and output from the outlet is downstream of the adhesive curing station 400. The adhesive curing station 400 is equipped with a heating device that generates heat to heat the battery module 21, thereby accelerating the curing of the adhesive 213 inside the battery module 21. The heating device includes, but is not limited to, a heat pump heating device. The structure of the heat pump heating device is similar to that of an air conditioner, and its working principle is the same as that of an air conditioner in heating mode. In other embodiments, the heating device may also be a hot air blower, a PTC heater, etc.

[0088] See Figure 1 As shown, a conveying device 300 is provided at the outlet of the adhesive curing station 400. The conveying device 300 is used to transport the battery modules 21 flowing out of the adhesive curing station 400 to the temperature detection device 500 for temperature measurement. The conveying device 300 can be a belt conveyor or a roller conveyor. The belt conveyor includes a conveyor belt and drive rollers located at the ends of the conveyor belt for driving the belt to rotate. The roller conveyor includes multiple parallel rollers, which are driven to rotate by a motor or other drive device, thereby driving the object to be transported on each roller.

[0089] A temperature detection device 500 is located downstream of the adhesive curing station 400 and is used to detect the temperature of the outer surface of the battery cells in the battery module 21. After being heated by the adhesive curing station, the battery module 21 is transferred to the temperature detection device 500 for temperature measurement. The temperature detection device 500 can detect the temperature of the battery cells 1 at multiple different locations on the battery module 21, thereby providing feedback on the degree of curing of the adhesive 213 inside the battery module 21 and whether the curing is uniform.

[0090] Since the degree of curing of adhesive 213 in battery module 21 is positively correlated with the heating temperature during curing in adhesive curing station 400, the temperature of adhesive coated on the outer surface of battery cell 1 after heating and curing can be fed back by detecting the temperature of the outer surface of battery cell 1, thereby ensuring the curing quality of adhesive 213 in battery module.

[0091] like Figure 2As shown, multiple battery modules 21 can form a battery 200, which provides power to electrical devices. These electrical devices can be, but are not limited to, vehicles, ships, or aircraft. For example, in one embodiment, the battery 200 can be used to power a vehicle, and the battery 200 contains multiple battery modules 21. The vehicle can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc.

[0092] like Figure 2 As shown, the battery 200 includes a housing, the shape of which is not limited. The housing can be a frame-shaped housing, a disc-shaped housing, or a box-shaped housing, etc. Exemplarily, the housing includes a first housing 22 and a second housing 23 that covers the first housing 22. The second housing 23 and the first housing 22, when closed, form a receiving portion, and the second housing 23 and the first housing 22, when closed, can be locked and fixed by fasteners such as bolts. Figure 2 As shown, the battery 200 contains a plurality of battery modules 21, which are disposed within the housing portion of the casing.

[0093] like Figure 3 As shown, the battery module 21 includes multiple battery cells 1, end plates 211, and side plates 212. Each battery cell 1 is a rechargeable secondary battery. There are two end plates 211 and two side plates 212, forming a rectangular module frame. Multiple battery cells 1 are arranged within this module frame. The ends of the end plates 211 and side plates 212 can be connected by welding, adhesive bonding, or fasteners such as bolts and rivets. The side plates 212 and end plates 211 can be made of metals or alloys such as aluminum or aluminum alloys. The side plates 212 and end plates 211 can be a single integrated structure with high structural strength and good stress-bearing capacity. Multiple battery cells 1 can be electrically connected in series, parallel, or a combination thereof. Adhesive 213 is applied to the wide surfaces of adjacent battery cells 1 in the battery module 21, and the wide surfaces of adjacent battery cells 1 are fixedly connected by adhesive 213. Furthermore, an adhesive 213 is provided between the narrow surface of each battery cell 1 and the side plate 212, and the narrow surface of each battery cell 1 and the side plate 212 are fixedly connected by the adhesive 213.

[0094] See Figure 4 As shown, the battery cell 1 includes a housing 11, an end cap 12, and an electrode assembly 13 disposed within the housing 11. The housing 11 can be a cuboid structure or other structures. The housing 11 has an internal space for accommodating the electrode assembly 13 and electrolyte, and an opening communicating with the internal space. The end cap 12 is adapted to the opening. The housing 11 and the end cap 12 can be made of materials such as aluminum, aluminum alloy, or plastic. The end cap 12 is provided with an injection hole 121, an explosion-proof valve 122, and two electrode terminals 14, one of which is a positive terminal and the other is a negative terminal.

[0095] During battery module 21 assembly, adhesive 213 is applied to the wide and narrow sides of each battery cell 1. Then, the battery cells 1 are arranged within the module frame formed by the side plate 212 and end plate 211, with the wide sides of the battery cells 1 bonded together by the adhesive 213, and the narrow sides of the battery cells 1 bonded to the side plate 212. After assembly, the battery module is conveyed to the adhesive curing station 400 for heating to accelerate the curing of the adhesive 213. After heating in the adhesive curing station 400, the battery module 21 is conveyed to the temperature detection device 500 for temperature measurement. The temperature detection device 500 can detect the surface temperature of the battery cells 1 at multiple different locations within the battery module 21, thereby providing feedback on the degree of curing of the adhesive 213 within the battery module 21 and whether the curing is uniform.

[0096] Because the adhesive 213 between the large surfaces of two adjacent battery cells 1 and between the narrow surface of battery cell 1 and the side plate 212 are obscured by the battery cell 1 or the side plate 212, the temperature of the adhesive 213 cannot be directly measured. Therefore, in order to more accurately detect the temperature of the adhesive 213, the temperature detection device 500 can select the electrode terminal 14 of the battery cell 1 in the battery module 21 as the temperature measurement point when measuring the temperature of the battery module 21. After repeated testing, the temperature of the electrode terminal 14 in the battery cell 1 is relatively close to the temperature of the adhesive 213. In other embodiments, the temperature detection device 500 can also select the end cap 12 or a position near the adhesive 213 as the temperature measurement point when measuring the temperature of the battery module 21. Through this battery production system, battery modules 21 with abnormal adhesive 213 curing can be screened out, thereby ensuring the quality of the produced battery module products.

[0097] like Figure 5 and Figure 6 As shown, Figure 5 This is a structural schematic diagram of the temperature detection device 500. Figure 6 This is a schematic diagram of the temperature sensing component 501. The temperature detection device 500 includes a temperature sensing component 501, which includes a mounting plate 50 and a temperature probe 51. The temperature probe 51 is adjustablely mounted on the mounting plate 50.

[0098] like Figure 1 As shown, the temperature detection device 500 is located on the side of the transmission device 300, and the temperature measuring component 501 is located above the transmission device 300. The mounting plate 50 and the temperature measuring probe 51 on it face downwards to measure the temperature of the battery module 21 on the transmission device 300.

[0099] The mounting plate 50 serves as the mounting carrier for the temperature probe 51. The mounting plate 50 can be made of metals or alloys with a certain strength, such as aluminum, aluminum alloy, or steel. The temperature probe 51 is mounted on the mounting plate 50, which is positioned relative to the battery module 21. This allows the temperature probe 51 on the mounting plate 50 to also be positioned relative to the battery module 21, measuring the surface temperature of the battery cells 1 within the battery module 21. Multiple temperature probes 51 can be mounted on the mounting plate 50, each corresponding to one battery cell 1 within the battery module 21 for temperature measurement. Therefore, multiple temperature probes 51 can detect the surface temperature of multiple battery cells 1 within the battery module 21, providing feedback on whether the adhesive 213 at different locations within the battery module 21 has fully cured and whether the adhesive 213 at different locations has cured uniformly.

[0100] In this embodiment, the temperature probe 51 can be, but is not limited to, a non-contact temperature probe, wherein the non-contact temperature probe can be an infrared temperature sensor. When using a non-contact temperature probe for temperature measurement, the temperature probe 51 can measure the temperature of the battery cell 1 without contacting it, thereby improving the temperature measurement efficiency. In other embodiments, the temperature probe 51 can also use other types of non-contact temperature sensors.

[0101] In other embodiments, the temperature probe 51 may also be a contact temperature probe. Contact temperature probes include, but are not limited to, thermocouple temperature probes, thermistor temperature probes, resistance temperature probes (RTDs), and integrated temperature probes. The temperature probe 51 can be a probe-type structure or a ball-type structure. For example, in one embodiment, the temperature probe 51 is a probe-type temperature probe, in which the probe-type temperature probe directly contacts the outer surface of the battery cell during temperature measurement.

[0102] like Figure 6 As shown, the temperature probe 51 is adjustablely mounted on the mounting plate 50. This adjustability includes the adjustable position and number of the temperature probes 51 on the mounting plate 50. By adjusting the position of each temperature probe 51 on the mounting plate 50, the temperature measurement point of each temperature probe 51 on the battery module 21 can be adjusted. When measuring the temperature of the battery module 21, the number of temperature probes 51 and their positions on the mounting plate 50 can be set as needed. For example, in some cases, the size of the battery module 21 to be tested is small, and the number of battery cells 1 within the battery module 21 is small. In this case, the number of temperature probes 51 on the mounting plate 50 can be reduced, and the positions of the remaining temperature probes 51 on the mounting plate 50 can be adjusted so that each temperature probe 51 is aligned with its corresponding battery cell 1. In this embodiment, the number of temperature probes 51 and their positions on the mounting plate 50 can be flexibly adjusted according to the temperature measurement position of the battery module 21 being tested, making it applicable to various types of battery modules 21, thus improving temperature detection efficiency and accuracy.

[0103] like Figure 6 As shown, in one embodiment, the temperature measuring component 501 further includes a distance adjustment mechanism 510. The temperature measuring probe 51 is disposed on the mounting plate 50 through the distance adjustment mechanism 510, which is used to adjust the spacing of the temperature measuring probe 51.

[0104] In this embodiment, the temperature probes 51 are not directly mounted on the mounting plate 50. Instead, they are mounted on the mounting plate 50 via a distance adjustment mechanism 510. The distance adjustment mechanism 510 allows for easy adjustment of the distance between the temperature probes 51, enabling the temperature sensing assembly 501 to accommodate battery modules 21 of different sizes.

[0105] like Figure 6 As shown, in one embodiment, the distance adjustment mechanism 510 includes a first slide rail 52, on which a plurality of temperature probes 51 are disposed, and the positions of the plurality of temperature probes 51 on the first slide rail 52 are adjustable.

[0106] The first slide rail 52 can be directly or indirectly mounted on the mounting plate 50. A sliding mechanism is provided between the first slide rail 52 and the temperature probe 51. The temperature probe 51 and the first slide rail 52 are slidably connected through the sliding mechanism, so that the temperature probe 51 can slide on the first slide rail 52 and its position on the first slide rail 52 can be adjusted. By adjusting the position of the temperature probe 51 on the first slide rail 52, not only can the position of the temperature probe 51 on the mounting plate 50 be adjusted, but the spacing between different temperature probes 51 can also be adjusted.

[0107] like Figure 6 As shown, a sliding groove 521 is provided on the first slide rail 52, and multiple temperature probes 51 are slidably connected to the sliding groove 521.

[0108] The sliding mechanism between the first slide rail 52 and the temperature probe 51 may include, but is not limited to, a groove 521 and a slider. The groove 521 may be disposed on the first slide rail 52, and the slider may slide within the groove 521. Each temperature probe 51 is provided with a slider, which is slidably connected to the groove 521 on the first slide rail 52 via the slider. The slidable connection between the temperature probe 51 and the first slide rail 52 via the groove 521 not only simplifies the sliding structure but also facilitates the adjustment of the position of the temperature probe 51 on the first slide rail 52.

[0109] In some embodiments, a groove may be provided on the temperature probe 51, and a sliding connection portion adapted to the groove may be provided on the first slide rail 52, so that the temperature probe 51 can slide on the first slide rail 52.

[0110] like Figure 6As shown, in one embodiment, the distance adjustment mechanism 510 includes two or more first slide rails 52, which are arranged parallel to each other. Each first slide rail 52 is provided with multiple temperature probes 51. Since the battery module 21 typically has multiple rows of battery cells 1, with each row containing multiple battery cells 1, this embodiment includes two or more first slide rails 52, each with multiple temperature probes 51. This allows the temperature probes 51 to simultaneously measure the temperature of multiple rows of battery cells 1, or simultaneously measure the temperature of different positions within a single row of battery cells 1, based on the distribution of the battery cells 1 in the battery module 21. For example, if a battery module 21 has one row of battery cells 1, and both electrode terminals 14 of the same battery cell 1 are temperature-measuring, then two first slide rails 52 can be used to measure the temperature of the battery module 21. One first slide rail 52 is opposite to the positive terminal of the battery cell 1 for measuring the temperature of the positive terminal, and the other first slide rail 52 is opposite to the negative terminal of the battery cell for measuring the temperature of the negative terminal. When the battery module 21 has two rows of battery cells 1, two first slide rails 52 can be used to measure the temperature of the battery module 21 separately, with each first slide rail 52 applied to measure the temperature of one row of battery cells 1.

[0111] like Figure 6 and Figure 7 As shown, in some embodiments, the temperature probe 51 is connected to a first positioning knob 512, which is used to adjust the position of the temperature probe 51 on the first slide rail 52.

[0112] The temperature probe 51 is slidably connected to the first slide rail 52, allowing its position to be changed with minimal force. While this slidable connection facilitates adjustment, the probe's position can easily deviate from its preset position without proper fixing. Therefore, to better adjust its position, each temperature probe 51 can be connected to a first positioning knob 512 to secure it.

[0113] The first positioning knob 512 can be sleeved on the temperature probe 51, and the first positioning knob 512 is threadedly connected to the temperature probe 51. By rotating the first positioning knob 512, the temperature probe 51 can be locked to the first slide rail 52 or the temperature probe 51 can slide freely on the first slide rail. When the first positioning knob 512 is loosened, the temperature probe 51 can slide on the first slide rail 52; when the first positioning knob 512 is tightened, the end of the first positioning knob 512 contacts the first slide rail 52, thereby locking the first positioning knob 512 and the first slide rail 52 and preventing them from sliding, thus fixing the relative position of the temperature probe 51 and the first slide rail 52. In the above embodiment, the position of the temperature probe 51 on the first slide rail 52 can be adjusted by the first positioning knob 512 to prevent the temperature probe 51 from shifting after the position is adjusted, making the position adjustment of the temperature probe more accurate and stable, and also ensuring the accuracy of temperature measurement of the battery module 21.

[0114] like Figure 7 As shown, in one embodiment, the distance adjustment mechanism 510 further includes a second slide rail 53, on which the first slide rail 52 is slidably disposed.

[0115] The second slide rail 53 can be fixed to the mounting plate 50 by bolts, rivets, or other fasteners. Alternatively, it can be fixed by welding or gluing. The first slide rail 52 may be equipped with a slider that matches the second slide rail, allowing the first slide rail 52 and the second slide rail 53 to slide together. In this embodiment, both ends of the first slide rail 52 are connected to the second slide rail 53. The position of the first slide rail 52 and the positions of the multiple temperature probes 51 on the first slide rail 52 can be adjusted via the second slide rail 53.

[0116] like Figure 6 As shown, in one embodiment, the second slide rail 53 includes two slide rails, which are arranged parallel to each other, and the two ends of the first slide rail 52 are slidably connected to the second slide rail 53 respectively.

[0117] The first slide rail 52 may have sliders at both ends, and the sliders are slidably connected to the second slide rail 53. The two ends of the first slide rail 52 are slidably connected to the second slide rail 53, so that the first slide rail 52 can slide along the second slide rail 53 to adjust the distance between two adjacent first slide rails 52.

[0118] In the above embodiments, the distance adjustment mechanism 510 of the temperature measuring component 501 includes a first slide rail 52 and a second slide rail 53. The position of each temperature measuring probe 51 on the first slide rail 52 is adjustable, and the spacing between each first slide rail 52 is adjustable, so that the temperature detection device 500 can be applied to various battery modules with different structures, such as battery modules with single-row battery cells, battery modules with multiple rows of battery cells, sandwich battery modules, and battery modules with battery cells lying flat.

[0119] like Figure 6 As shown, in one embodiment, the first slide rail 52 is provided with a second positioning knob 54, which is used to adjust the position of the first slide rail 52 on the second slide rail 53.

[0120] To facilitate adjustment of the position of the first slide rail 52 on the second slide rail 53, a second positioning knob 54 is provided at the end of the first slide rail 52. The second positioning knob 54 is rotatably mounted on the slider of the first slide rail 52. When the second positioning knob 54 is rotated, the end of the second positioning knob 54 can contact the first slide rail, thereby locking the second positioning knob 54 with the second slide rail and fixing the relative position of the first slide rail 52 and the second slide rail 53.

[0121] like Figure 7 As shown, in one embodiment, a protective cover 511 is also provided on the outer periphery of the temperature probe 51.

[0122] A protective cover 511 is disposed on the outer periphery of the temperature probe 51 to protect the temperature probe 51 from direct impact from external objects. In some embodiments, the protective cover 511 may be made of hard materials such as acrylic, glass, or stainless steel. In other embodiments, the protective cover 511 may also be made of flexible non-metallic materials such as rubber, silicone, or plastic. Structurally, the protective cover 511 may be a hollow conical structure, coaxially arranged with the temperature probe 51, with the temperature probe 51 located in the center of the protective cover 511, and the protective cover 511 aligned with the temperature measurement direction of the temperature probe 51 (e.g., along the temperature measurement direction of the probe 51). Figure 7 The protective cover 511 has an opening in the downward direction (in the middle) so as not to interfere with the normal operation of the temperature probe. In this embodiment, the protective cover 511 surrounds the outer periphery of the temperature probe 51, thereby preventing the temperature probe 51 from being damaged by impacts from external objects.

[0123] like Figure 5 As shown, in one embodiment, the mounting bracket includes a base 502 and a support rod 503. The support rod 503 is disposed on the base 502 and connects the temperature measuring component 501 and the base 502.

[0124] The support rod 503 is vertically mounted on the base 502, and the temperature measuring component 501 is connected to the support rod 503, so that the height of the temperature measuring component 501 is higher than that of the transmission device 300. In order to enable the temperature measuring component 501 to be located directly above the transmission device 300, a horizontal bar 506 facing the transmission device 300 can be provided at the top of the support rod 503, and the temperature measuring component 501 is mounted on the horizontal bar 506.

[0125] like Figure 5As shown, in one embodiment, the support rod 503 includes a fixed section, a movable section, and a third positioning knob 504. The fixed section is fixedly mounted on the base 502, and one end of the movable section is movably connected to the fixed section. The third positioning knob 504 is located at the movable connection between the fixed section and the movable section and is used to fix the fixed section and the movable section.

[0126] The fixed section is hollow and is fixedly mounted on the base 502. One end of the movable section is inserted into the fixed section and movably connected to it. Therefore, by adjusting the position of the movable section relative to the fixed section, the length of the support rod 503 can be adjusted, thereby adjusting the distance between the temperature measuring component 501 and the battery module 21, making it suitable for battery cells 1 of different heights. The third positioning knob 504 is used to fix the relative position of the fixed section and the movable section. The third positioning knob 504 is located at the movable connection between the fixed section and the movable section and is used to fix the fixed section and the movable section.

[0127] In this embodiment, the support rod 503 is a telescopic rod and has a third positioning knob 504, so the height of the temperature measuring component 501 can be adjusted, and the length of the support rod 503 can be fixed by the third positioning knob 504, which facilitates the adjustment of the distance between the temperature measuring component 501 and the battery module 21 to be tested, and can be applied to temperature measurement of battery modules 21 of different heights.

[0128] like Figure 1 As shown, in one embodiment, the battery production system further includes: a first output port 301 for outputting battery modules 21 that are qualified as detected by the temperature detection device 500; and a second output port 302 for outputting battery modules 21 that are abnormal as detected by the temperature detection device 500.

[0129] The first output port 301 and the second output port 302 are located downstream of the temperature detection device 500. The first output port 301 is used to output battery modules that are detected as qualified by the detection device; the second output port 302 is used to output battery modules that are detected as abnormal by the detection device. Qualification includes the battery module 21 meeting any one or more of the following criteria: the surface temperature of the battery cell 1 reaches a preset value; the temperature deviation at different test points is less than a preset value. For example, the preset value can be 45℃±5℃. When measuring the temperature of the battery module 21, the electrode terminals 14 of the battery cell 1, the outer surface of the end cap 12, and the positions corresponding to the side plate 212 of the battery cell 1 can be selected as temperature measurement points. During temperature detection, it can be first determined whether the actual temperature collected at the above-mentioned temperature test points is greater than or equal to the preset value. Secondly, trend judgment can be further made based on the actual temperature values ​​collected, and the temperature collected at different temperature measuring points can be analyzed to see if it conforms to the temperature distribution law. The specific temperature distribution law can be determined based on the length and width of the battery module 21, as well as whether the battery cells 1 in the battery module 21 are arranged in a single row or multiple rows. The temperature distribution law includes that the temperature collected at the temperature measuring point in the middle of the battery module 21 should be greater than the temperature collected at the temperature measuring point at the end of the battery module 21. For example, if the battery cells 1 in the battery module 21 are arranged in a single row and there are 16 battery cells 1, when testing the battery module 21, first check whether the temperature of multiple temperature measuring points on the battery module 21 is greater than 45°, and then determine whether the temperature of the electrode terminal 14 of the battery cell 1 in the middle of the battery module 21 (the 8th battery cell) is greater than the temperature of the electrode terminal 14 of the battery cell at the end (the 1st or 16th battery cell). If so, it means that the battery module 21 has passed the test; if not, it means that the battery module 21 has failed the test. When testing the battery module 21, the outer surface of the end cover 12 or the side plate 212 can be used to replace the electrode terminal 14 as the temperature measuring point.

[0130] If battery module 21 fails to meet the set testing requirements, the battery module is considered to have an abnormal curing condition.

[0131] When the temperature of battery module 21 is detected as abnormal, it indicates that the curing of adhesive 213 inside battery module 21 is likely abnormal. Therefore, a second temperature measurement can be performed on battery module 21 with abnormal temperature output from the second output port 302.

[0132] In the above embodiment, a first output port 301 and a second output port 302 are provided downstream of the temperature detection device 500. Therefore, the battery module 21 with abnormal temperature detection can be separated from the qualified battery module in a timely manner, which facilitates the subsequent processing of the battery module 21 with abnormal temperature detection and thus facilitates the production management of battery modules.

[0133] like Figure 5As shown, in one embodiment, the battery production system further includes a data collection device 505, which is connected to the temperature measuring component 501 and is used to collect temperature data detected by each temperature probe 51. The data collection device 505 can be a device with data processing capabilities, such as a PC or a PLC controller.

[0134] PC (Personal Computer) refers to a personal computer that does not need to share hardware and software resources such as processing power, disk space, and printers with other computers, including commonly used computers that do not require external resource sharing. PLC controller: Programmable Logic Controller (PLC). A PLC controller is a digital electronic device with a microprocessor, modularly composed of an internal CPU, instruction and data memory, input / output units, power supply module, and digital / analog units. PLC controllers are digital logic controllers used for automation control, capable of loading control instructions into memory for storage and execution.

[0135] The data collection device 505 can be connected to each temperature probe 51 via wired or wireless means to collect temperature data detected by each temperature probe 51. In this embodiment, the data collection device can collect temperature data detected by each temperature probe online, which facilitates the collection and management of the detected temperature data.

[0136] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, any changes and modifications made to the embodiments based on the innovative concept of the present invention, or equivalent structural or procedural transformations made using the content of the present invention's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection of the present invention.

Claims

1. A battery production system for producing battery modules, the battery module comprising a plurality of battery cells, the plurality of battery cells being bonded together by adhesive, characterized in that, include: An adhesive curing station, wherein the adhesive curing station is used to cure the adhesive; and A temperature detection device is installed downstream of the adhesive curing station to detect the temperature of the outer surface of the battery cell; The temperature detection device includes a temperature measuring component, which includes a temperature measuring probe. The temperature measuring probe is configured to be positioned relative to at least one of the electrode terminals of the battery cell, the end cap of the battery cell, and a location near where the adhesive is applied on the battery cell, and is used to measure the temperature of the outer surface of the battery cell.

2. The battery production system according to claim 1, characterized in that, The temperature measuring assembly also includes a mounting plate, on which the temperature probe is tunably mounted.

3. The battery production system according to claim 2, characterized in that, The temperature measuring component also includes a distance adjustment mechanism. The temperature measuring probe is mounted on the mounting plate via the distance adjustment mechanism, which is used to adjust the spacing of the temperature measuring probe.

4. The battery production system according to claim 3, characterized in that, The distance adjustment mechanism includes a first slide rail, on which a plurality of temperature probes are disposed, and the positions of the plurality of temperature probes on the first slide rail are adjustable.

5. The battery production system according to claim 4, characterized in that, The first slide rail is provided with a slide groove, and multiple temperature probes are slidably connected to the slide groove.

6. The battery production system according to claim 4 or 5, characterized in that, The temperature probe is connected to a first positioning knob, which is used to adjust the position of the temperature probe on the first slide rail.

7. The battery production system according to any one of claims 4 to 6, characterized in that, The distance adjustment mechanism further includes a second slide rail, on which the first slide rail is slidably mounted.

8. The battery production system according to claim 7, characterized in that, The second slide rail includes two slide rails, which are arranged parallel to each other, and the two ends of the first slide rail are slidably connected to the second slide rails respectively.

9. The battery production system according to claim 7 or 8, characterized in that, The first slide rail is provided with a second positioning knob, which is used to adjust the position of the first slide rail on the second slide rail.

10. The battery production system according to claim 2, characterized in that, The temperature probe is equipped with a protective cover on its outer periphery.

11. The battery production system according to claim 2, characterized in that, The temperature detection device further includes: Base; A support rod is mounted on the base, and the support rod connects the temperature measuring component to the base.

12. The battery production system according to claim 11, characterized in that, The support rod includes: A fixed section is fixedly mounted on the base; A movable segment, one end of which is movably connected to the fixed segment; The third positioning knob is located at the movable joint between the fixed section and the movable section, and is used to fix the fixed section and the movable section.

13. The battery production system according to claim 1, characterized in that, The battery production system also includes: The first output port is used to output the battery module that the temperature detection device has detected as qualified; The second output port is used to output the battery module that the temperature detection device detects as abnormal.

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