Battery testing device

Abstract

The application is suitable for the technical field of batteries, and provides a battery testing device. The battery testing device comprises a support, a probe module, a first driving mechanism and a bearing piece. The probe module is installed on the support in a liftable manner, and at least part of the first driving mechanism is movable relative to the support. The bearing piece is used for bearing a standard resistor. The bearing piece is connected with the first driving mechanism and is movable relative to the support under the driving of the first driving mechanism between a first testing position and a first avoiding position. The standard resistor can be in contact and conduction with the probe module at the first testing position. The bearing piece and the standard resistor avoid the probe module and a battery monomer at the first avoiding position. The battery testing device provided by the application can improve the accuracy of calibration of the battery testing device.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery production, and particularly relates to a battery testing device. BACKGROUND

[0002] In the detection process by the battery testing device, in order to ensure the accuracy and effectiveness of the detection of the battery testing device, the battery testing device needs to be calibrated at a fixed period. Before calibration, a battery model (also referred to as a standard resistance) is generally made according to the battery monomer to be detected. When calibration, the above-mentioned standard resistance is placed into the battery testing device by the staff at a fixed period for detection, and the values obtained by testing are compared and judged to detect whether the battery testing device is working normally.

[0003] By manually placing the standard resistance, it is impossible to ensure that the placement position is consistent each time, and it is also impossible to ensure that the placement position can be in stable and accurate contact with the probe. SUMMARY

[0004] In view of the above problems, the application provides a battery testing device, which aims to improve the accuracy of calibration of the battery testing device.

[0005] In a first aspect, the application provides a battery testing device, which comprises a support, a probe module, a first driving mechanism and a bearing piece. The probe module is installed on the support in a liftable manner, and at least part of the first driving mechanism can move relative to the support. The bearing piece is used for bearing a standard resistance, and the bearing piece is connected with the first driving mechanism and can move reciprocally relative to the support under the driving of the first driving mechanism between a first test position and a first avoiding position. The standard resistance can be in contact and conduction with the probe module at the first test position, and the bearing piece and the standard resistance avoid the probe module and a battery monomer at the first avoiding position.

[0006] The battery testing device provided by the application embodiment sets the bearing piece and the first driving mechanism. The bearing piece can be used for bearing the standard resistance, and the first driving mechanism can control the bearing piece and the standard resistance to move reciprocally at the first test position and the first avoiding position accurately, so that the relative position of the standard resistance and the probe module is fixed when the standard resistance is in contact and conduction with the probe module at the first test position each time when multiple calibrations are needed, and then the calibration data is accurate when multiple calibrations are needed, and the accuracy of calibration of the battery testing device is improved.

[0007] In some possible implementation manners, the battery testing device further comprises a first guide structure, the first guide structure comprises a first guide piece and a second guide piece, the first guide piece is fixed relative to the support, and the second guide piece is arranged on the bearing piece and is in sliding connection with the first guide piece along a first direction, the first direction is arranged at an angle with the lifting direction of the probe module.

[0008] The first guide structure is arranged so that the carrier can move along a preset movement path relative to the support, and the movement path of the carrier each time is consistent.

[0009] In some possible implementation manners, the first direction is perpendicular to the lifting direction. In this way, the design is facilitated.

[0010] In some possible implementation manners, the battery testing device further comprises a battery conveying mechanism, the battery conveying mechanism is used for conveying the battery monomer, and the battery conveying mechanism is arranged separately from the probe module and the carrier in the lifting direction.

[0011] The battery conveying mechanism is arranged, so that the conveying efficiency of the battery monomer can be improved to some extent, and thus the detection efficiency of the battery monomer can be improved to some extent.

[0012] In some possible implementation manners, the battery testing device further comprises a blocking mechanism, the blocking mechanism has a blocking piece, the blocking piece can reciprocate between a first position and a second position, the blocking piece can restrict at least part of the battery monomers to the second test position in the first position, the battery monomers can be in contact with the probe module in the second test position, and the blocking piece is arranged to avoid the battery monomers in the second position.

[0013] In the embodiment, the blocking mechanism is arranged, so that the battery conveying mechanism can not need to stop and wait during the detection of part of the battery monomers, and thus when a plurality of groups of battery monomers are sequentially arranged on the battery conveying mechanism along the conveying direction of the battery conveying mechanism, the plurality of groups of battery monomers can be detected in turn and quickly, which helps to improve the efficiency of the battery detection operation.

[0014] In some possible implementation manners, the blocking mechanism further comprises a second driving mechanism, at least part of the second driving mechanism is arranged to be fixed relative to the support, and the second driving mechanism is connected with the blocking piece, and the second driving mechanism is used for driving the blocking piece to reciprocate between the first position and the second position.

[0015] The second driving mechanism is arranged, on the one hand, so that the blocking piece can move along a preset movement path relative to the support, and the movement path of the blocking piece each time is consistent, and compared with manual control movement, the risk of operation error caused by human factors can be reduced; and on the other hand, when the second driving mechanism adopts a non-manual driving power source, the detection efficiency of the battery testing device can be improved.

[0016] In some possible implementation manners, the second driving mechanism comprises a linear driving assembly, a third guide piece and a fourth guide piece, the third guide piece is arranged to be fixed relative to the support, the fourth guide piece is connected with the blocking piece, the fourth guide piece is connected with the third guide piece in a sliding mode, and the linear driving assembly is connected with the blocking piece and / or the fourth guide piece.

[0017] The second driving mechanism not only comprises the linear driving assembly, but also comprises a third guide member and a fourth guide member, so that the blocking member can move along the preset moving path relative to the support, and the third guide member and the fourth guide member can also support the blocking member to some extent, so as to reduce the risk of shaking of the blocking member during movement and the risk of loosening of the connection between the blocking member and the linear driving assembly.

[0018] In some possible implementation manners, the battery testing device further comprises a second guide structure, at least part of the second guide structure is arranged between the battery conveying mechanism and the probe module in the lifting direction, and the second guide structure is used for guiding the battery monomer to reach the second testing position in a preset arrangement mode; and the blocking member avoids the second guide structure at least in the second position.

[0019] The second guide structure is arranged, so that the battery monomer can reach the second testing position in the preset arrangement mode and stably contact and conduct with the probe in the probe module, so as to make the detection result accurate.

[0020] In some possible implementation manners, the second guide structure comprises a fifth guide member and a rolling member, the fifth guide member is arranged in the first direction, the fifth guide member is provided in two groups, the two groups of fifth guide members are arranged in the third direction and form a channel, the channel is used for passing the battery monomer, and the rolling member is arranged on the fifth guide member and used for rolling contact with the battery monomer, and the third direction is perpendicular to the first direction and the lifting direction.

[0021] The second guide structure can only comprise the fifth guide member and the rolling member, and can also comprise other structures such as a limiting member and a fixing member according to the use requirement, and the specific structure can be determined according to the use requirement. Regardless of how the second guide structure is arranged, the second guide structure at least comprises the fifth guide member and the rolling member, so that the second guide structure and the battery monomer can achieve rolling contact, the friction between the two is small, the battery monomer can reach the second testing position in the preset arrangement mode, and the probe in the probe module can stably contact and conduct, which is a win-win situation.

[0022] In some possible implementation manners, one side of the blocking member facing the battery conveying mechanism is located between the second guide structure and the carrier in the lifting direction.

[0023] In this way, on the basis that the second direction is perpendicular to the lifting direction, the blocking member can avoid the second guide structure during movement between the first position and the second position, and the blocking member does not interfere with the second guide structure.

[0024] In some possible implementation manners, the probe module comprises a support frame and a plurality of probe groups, the support frame can be lifted relative to the support, and the plurality of probe groups are sequentially arranged on the support frame in the third direction.

[0025] The probe module provided in the embodiment has multiple probe groups, and the same probe module can realize the simultaneous detection of multiple battery monomers or multiple standard resistors, which is helpful for the batch production of battery monomers.

[0026] In some possible implementation manners, multiple probe modules are provided, and the multiple probe modules are sequentially arranged along the third direction.

[0027] The probe module provided in the embodiment has multiple probe groups, and the same probe module can realize the simultaneous detection of multiple battery monomers or multiple standard resistors, which is helpful for the batch production of battery monomers.

[0028] In some possible implementation manners, the probe group includes a positive electrode probe and a negative electrode probe, and the spacing between the positive electrode probe and the negative electrode probe in the same probe group is adjustable.

[0029] In this way, the spacing between the positive electrode probe and the negative electrode probe in the probe group can be adjusted according to the spacing between the positive electrode column and the negative electrode column in different battery monomers, so that the battery testing device can be applicable to the detection of different battery monomers, and the application range is wider.

[0030] In some possible implementation manners, the probe group has n, n is greater than or equal to 2, and the same probe group in at least n-1 probe groups is connected in parallel with a recognition resistor, and the resistances of the recognition resistors corresponding to different probe groups are different.

[0031] The recognition resistor can help users quickly find the problematic battery monomers, and improve the detection efficiency and production efficiency.

[0032] In some possible implementation manners, the second guide structure has multiple second guide structures, and the second guide structure is arranged correspondingly to the probe group.

[0033] The second guide structure has multiple second guide structures, and the second guide structure is arranged correspondingly to the probe group, so that the battery monomers at different positions can be moved to below the probe group according to the preset placement mode, thereby being stably contacted and conducted with the probe group, and the detection result is accurate.

[0034] In some possible implementation manners, the blocking piece includes a blocking part and a connecting part, the blocking part has multiple blocking parts, the blocking part is arranged correspondingly to the probe group, and the blocking part is connected to the linear driving assembly and / or the fourth guide piece through the connecting part.

[0035] The blocking piece provided in the embodiment has a simple structure, and is convenient to install.

[0036] In some possible implementation manners, the first position and the second position are arranged along the second direction, and the second direction is arranged at an angle with respect to the first direction and the lifting direction.

[0037] The battery testing device has a large number of components, the second direction is arranged at an angle with the first direction and the lifting direction, and there can be multiple arrangement modes, which can be determined according to the structure and layout space of the battery testing device. In this way, the risk of interference between the blocking piece and other components in the battery testing device during movement of the blocking piece can be reduced, and the overall space utilization of the battery testing device can be improved.

[0038] In some possible implementation manners, the second direction is arranged perpendicularly to the lifting direction and at an acute angle or an obtuse angle with the first direction.

[0039] The second direction is arranged perpendicularly to the lifting direction, which is convenient for design. The second direction is arranged at an acute angle or an obtuse angle with the first direction, which can reduce the risk of interference between the blocking piece and other components in the battery testing device during movement of the blocking piece, and can improve the overall space utilization of the battery testing device.

[0040] In some possible implementation manners, the battery testing device further includes a lifting mechanism, and the lifting mechanism is arranged on the support. The probe module is movably connected to the support through the lifting mechanism.

[0041] The arrangement of the lifting mechanism can make the probe module move relative to the support along a preset movement path, so that the movement trajectory of the probe module is consistent each time, and compared with manual control movement, the product detection difference caused by human factors can be reduced. In addition, when the lifting mechanism adopts a non-manual driving power source, the detection efficiency of the battery testing device can be improved.

[0042] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0043] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Moreover, the same reference numerals in the attached drawings indicate the same or similar elements. In the drawings:

[0044] Figure 1 A structural schematic diagram of a battery testing device in a first perspective view is provided for some embodiments of the present application;

[0045] Figure 2 A structural schematic diagram of a battery testing device in a second perspective view is provided for some embodiments of the present application;

[0046] Figure 3A top view structural schematic diagram of a combination structure of a bearing member and a first guide structure in a battery testing device provided for some embodiments of the present application;

[0047] Figure 4 A sectional view structural schematic diagram along line A-A in the battery testing device provided for some embodiments of the present application; Figure 3

[0048] Figure 5 A structural schematic diagram of a blocking mechanism in the battery testing device provided for some embodiments of the present application;

[0049] Figure 6 A bottom view structural schematic diagram of a partial structure of the blocking mechanism in the battery testing device provided for some embodiments of the present application;

[0050] Figure 7 A front view structural schematic diagram of a combination structure of a support, a lifting mechanism and a probe module in the battery testing device provided for some embodiments of the present application;

[0051] Figure 8 A front view structural schematic diagram of a probe module in the battery testing device provided for some embodiments of the present application;

[0052] Figure 9 A perspective structural schematic diagram of the probe module in the battery testing device provided for some embodiments of the present application;

[0053] Figure 10 A partial circuit schematic diagram of the battery testing device provided for some embodiments of the present application.

[0054] Reference numerals in the detailed description of the embodiments are as follows:

[0055] 10, support; 11, battery monomer; 12, identification resistor; 20, probe module; 21, support frame; 22, probe group; 221, positive probe; 222, negative probe; 30, first driving mechanism; 31, bearing member; 32, standard resistor; 33, lifting mechanism; 34, battery conveying mechanism; 40, first guide structure; 41, first guide member; 42, second guide member; 50, blocking mechanism; 51, blocking member; 511, blocking portion; 512, connecting portion; 52, second driving mechanism; 521, linear driving assembly; 522, third guide member; 523, fourth guide member; 60, second guide structure; 61, fifth guide member; 62, rolling member; 70, NG resistor;

[0056] X, first direction; Z, lifting direction; Y1, second direction; Y2, third direction. DETAILED DESCRIPTION

[0057] ​The embodiments of the present application will be described in detail below with reference to the drawings. The following examples are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot be used to limit the protection scope of the present application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "comprising," "comprises" and "including" as used herein are synonymous with and meant to have the same meaning as the term "including"; the term "coupled" as used herein means the joining of two members together with one or more intervening members.

[0059] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0060] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0061] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0062] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0063] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0064] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing", and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0065] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form new technical solutions.

[0066] The manufacturing of a battery cell is a complex multi-process precision machining process. In the manufacturing process of the battery cell, some key processes (such as winding, ultrasonic tab welding, top cover welding, etc.) can cause metal debris, dust, etc. to contaminate the electrode assembly in the battery cell, or cause the damage of the separator in the battery cell due to improper baking process parameters or mechanical stress. These factors can cause abnormal internal resistance of the battery cell (such as low or high internal resistance), thereby affecting the reliability and performance of the battery cell. Therefore, in order to ensure product quality, a battery test device needs to be used at multiple production links to detect the internal resistance of the battery, so as to identify and remove defective products (such as short-circuit products).

[0067] In the detection process by the battery test device, in order to ensure the accuracy and effectiveness of the detection of the battery test device, the battery test device needs to be calibrated at a fixed period. Before calibration, a battery model (also called a standard resistance) is generally made according to the battery cell to be detected. During calibration, an employee manually places the above-mentioned standard resistance into the battery test device for detection, and compares the values obtained by testing to determine whether the battery test device is working normally.

[0068] By manually placing the standard internal resistance, it cannot be guaranteed that the placement position is consistent each time, and it cannot be guaranteed that the placement position can be stably and accurately contacted with the probe.

[0069] To improve the above problems, the battery testing device provided by the embodiments of the present application is provided. The battery testing device is provided with a bearing part and a first driving mechanism. The standard resistor can be carried by the bearing part. The bearing part and the standard resistor can be accurately moved back and forth between the first testing position and the first avoiding position by the first driving mechanism. Thus, when the standard resistor needs to be calibrated for multiple times, the relative position between the standard resistor and the probe module is fixed when the standard resistor is in contact with the probe module at the first testing position. Thus, the calibration data is accurate when the standard resistor is calibrated for multiple times. Thus, the accuracy of the calibration of the battery testing device is improved.

[0070] Please refer to Figure 1 and Figure 2 , Figure 1 The structural schematic diagram of the battery testing device provided by some embodiments of the present application is shown in the first perspective view. Figure 2 The structural schematic diagram of the battery testing device provided by some embodiments of the present application is shown in the second perspective view. The battery testing device provided by the embodiments of the present application is provided. The battery testing device comprises a support 10, a probe module 20 and a first driving mechanism 30. The probe module 20 is installed on the support 10 in a lifting manner. The first driving mechanism 30 comprises a bearing part 31 and the first driving mechanism 30 connected with each other. The bearing part 31 is used for carrying a standard resistor 32. The first driving mechanism 30 is used for driving the bearing part 31 to move back and forth between a first testing position and a first avoiding position. The standard resistor 32 can be in contact with the probe module 20 and be in conduction at the first testing position. The bearing part 31 avoids the probe module 20 at the first avoiding position.

[0071] The support 10 is a supporting mechanism of the battery testing device, which is used for carrying the probe module 20 and other structures.

[0072] The core function of the probe module 20 is to physically contact and conduct signals with the measured object (the battery monomer 11 to be detected). The probe module 20 has at least a probe, which can be provided with one group or multiple groups, which can be determined according to the needs of use. The probe, as a conductive medium, connects the detection equipment and the electrode of the battery monomer 11, transmits the charging and discharging current, and is used for measuring the internal resistance and other parameters of the battery monomer 11.

[0073] The probe module 20 is installed on the support 10 in a lifting manner, which can have multiple implementation manners. For example, the probe module 20 can be slidingly arranged on the support 10 in the height direction of the support 10, or can be connected with the support 10 through a moving mechanism. That is, the probe module 20 can be directly connected with the support 10 in a moving manner, or can be indirectly connected with the support 10 in a moving manner through other connecting members. The lifting direction Z of the probe module 20 is generally the height direction of the support 10, or can be arranged at an acute angle (such as 5°, 10°, etc.) with the height direction of the support 10, which can be determined according to the needs of use.

[0074] The first driving mechanism 30 is a driving assembly capable of driving the carrier 31 to move relative to the support 10. The driving assembly at least comprises a power source and a movable part connected with the power source. The power source can be a linear driving mechanism, such as a motor, a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, etc., or a rotary driving mechanism, such as a rotary driving arm, etc., which can be determined according to the needs of use. The power source can be an electric mechanism, a pneumatic mechanism, a hydraulic power mechanism, etc., as long as the movable part can drive the carrier 31 to move back and forth between the first test position and the first avoidance position under the driving of the power source. The movable part is a component connected with the carrier 31 and capable of moving relative to the support 10. The movable part can be composed of one or more components, can be fixedly installed at the driving end of the power source, can be rotatably installed at the driving end of the power source, or can be connected with the driving end of the power source in other ways, which can be determined according to the needs of use.

[0075] In addition to the power source and the movable part, the driving assembly can further comprise a connecting piece, such as a bolt, a nut, etc., connecting the power source and the movable part, or comprise other structures, such as a limiting structure, a first guiding structure, etc., according to the needs of use.

[0076] At least part of the power source is fixedly arranged relative to the support 10, including at least the following cases: first, the power source is fixedly arranged on the support 10; second, the first driving mechanism 30 is separately arranged, and the power source is not connected with the support 10, but the position of the power source is fixed after installation, and the distance between the power source and the support 10 does not change during use of the first driving mechanism 30 and the battery testing device.

[0077] The carrier 31 is a piece for carrying the standard resistor 32, which can be composed of one or more components, which can be determined according to the needs of use. The carrier 31 can have various arrangement modes, which can be determined according to the needs of use. For example, the carrier 31 can comprise a plate, a block, etc. for supporting the standard resistor 32, can comprise a clamp capable of clamping and fixing the standard resistor 32, or can comprise both the plate, the block, etc. and the clamp, or can adopt other structures.

[0078] The carrier 31 and the movable part can be fixedly connected, can be detachably connected, can be rotatably connected, or can be connected in other ways, and the connection relationship between the two can be determined according to the needs of use.

[0079] The first test position is generally a fixed position. In this position, the electrode end of the standard resistor 32 can stably contact and conduct with the probe of the probe module 20 when the probe module 20 moves to a certain position along the movement path.

[0080] The first avoiding position can be one fixed position or multiple fixed positions, which can be determined according to the use requirement. In the first avoiding position, the carrier 31 and the standard resistor 32 avoid the probe module 20 and the battery cell 11, that is, in the first avoiding position, the carrier 31 and the standard resistor 32 cannot affect the normal movement of the probe module 20 and the normal movement of the battery cell 11, and cannot affect the normal contact and conduction of the probe module 20 and the battery cell 11, that is, normal detection.

[0081] The use principle of the battery testing device provided by the embodiment of the application is as follows:

[0082] The standard resistor 32 is designed according to the parameters of the battery cell 11.

[0083] When calibration (also referred to as point inspection process) is required, the standard resistor 32 is placed on the carrier 31, the carrier 31 is controlled to drive the standard resistor 32 to move to the first testing position by the first driving mechanism 30, then the probe module 20 is controlled to move, until the probe in the probe module 20 is in stable contact and conduction with the corresponding electrode of the standard resistor 32, then the tester electrically connected with the probe can obtain the resistance value of the standard resistor 32. By comparing the resistance value with the actual resistance value of the standard resistor 32, it can be judged whether the probe module 20, the tester and the connection circuit between the probe module 20 and the tester are working normally.

[0084] If normal, the point inspection is ended. If abnormal, the staff can troubleshoot until normal. Then the probe module 20 is controlled to move, so that the probe module 20 is separated from the standard resistor 32, then the carrier 31 is controlled to drive the standard resistor 32 to move to the first avoiding position by the first driving mechanism 30, then the battery testing device can be normally used to detect the battery cell 11. When next calibration is required, the above operation is repeated.

[0085] When the battery cell 11 is detected, the carrier 31 and the standard resistor 32 are always in the first avoiding position. When detecting, the battery cell 11 is moved to the lower side of the probe module 20, then the probe module 20 is controlled to move, until the probe in the probe module 20 is in stable contact and conduction with the corresponding electrode of the battery cell 11, then the tester electrically connected with the probe can obtain the resistance value of the battery cell 11. By comparing the resistance value with the resistance value of the standard resistor 32, it can be judged whether the battery cell 11 to be detected is qualified. For example, if the resistance value of the battery cell 11 is greatly different from the resistance value of the standard resistor 32, and is out of the preset range (for example, within 5% of the resistance value of the standard resistor 32), the battery cell 11 is determined to be a defective product; if the resistance value of the battery cell 11 is small and is within the preset range, the battery cell 11 is determined to be a qualified product.

[0086] The battery testing device provided by the embodiments of the present application is provided with a bearing part 31 and a first driving mechanism 30. The standard resistance 32 can be carried by the bearing part 31. The first driving mechanism 30 can be used to control the bearing part 31 and the standard resistance 32 to move back and forth between the first testing position and the first avoiding position accurately. Therefore, when the standard resistance 32 needs to be calibrated for multiple times, the relative position between the standard resistance 32 and the probe module 20 is fixed when the standard resistance 32 is in contact with the probe module 20 at the first testing position. Therefore, the calibration data is accurate when the standard resistance 32 is calibrated for multiple times. Therefore, the accuracy of the calibration of the battery testing device can be improved.

[0087] In addition, in the related art, the calibration operation needs to manually place the standard resistance into the battery testing device, and the standard resistance 32 needs to be manually taken out after the detection is completed. The operation is complicated, the calibration time is long, and the above operation generally needs to be performed in a shutdown state, which affects the OEE (Overall Equipment Effectiveness) of the equipment. The first driving mechanism 30 of the battery testing device provided by the embodiments of the present application can be a non-human power mechanism such as an electric mechanism, a pneumatic mechanism, and a hydraulic mechanism. Therefore, the operation rate of the calibration operation can be improved to a certain extent, and the working efficiency of the battery testing device can be improved.

[0088] Please refer to Figure 3 and Figure 4 , Figure 3 The top view structural schematic diagram of the combination structure of the bearing part and the first guide structure in the battery testing device provided by some embodiments of the present application is shown in FIG. 4. Figure 4 Along Figure 3 the cross-sectional structural schematic diagram of the A-A line, in some embodiments, the battery testing device further includes a first guide structure 40. The first guide structure 40 includes a first guide part 41 and a second guide part 42. The first guide part 41 is fixedly arranged opposite to the support 10. The second guide part 42 is arranged on the bearing part 31, and the second guide part 42 is slidingly connected with the first guide part 41 along a first direction X. The first direction X is arranged at an angle with the lifting direction Z of the probe module 20.

[0089] The first guide structure 40 is a structure for guiding the bearing part 31 to move along the preset lifting direction Z. The first guide structure 40 can only be composed of the first guide part 41 and the second guide part 42, or can further include other structures in addition to the first guide part 41 and the second guide part 42, such as a limiting block arranged at both ends of the first guide part 41, a connecting structure connecting the first guide part 41 and the support 10, etc. The specific structure can be determined according to the use requirement.

[0090] The first guide 41 can be provided with one or more, which can be determined according to the setting position and structure of the first guide 41. For example, the first guide 41 is provided on the central axis of the carrier 31, and the first guide 41 can be provided with one; the first guide 41 is provided at the end of the carrier 31, and the first guide 41 can be provided with two groups, and the two groups of first guides 41 are respectively provided at the two ends of the carrier 31, and each group of first guides 41 can be composed of one or more first guides 41.

[0091] The first guide 41 can be composed of one or more components. For example, the first guide 41 can be composed of a guide rod, a guide rail or other components, and can also include a guide rod and a guide rail at the same time, or be composed of other components.

[0092] The second guide 42 can be composed of one or more components, and the specific structure can be determined according to the structure of the first guide 41. For example, the first guide 41 is a guide rod, and the second guide 42 can be a sleeve provided outside the guide rod, which is in sliding contact with the guide rod; if the first guide 41 is a guide rail, the second guide 42 can be a slider provided on the guide rail; if the first guide 41 is a slider, the second guide 42 can be a guide rail or a guide rod provided on the guide rail.

[0093] The first direction X can be a certain direction perpendicular to the lifting direction Z of the probe module 20, or other directions in one direction, or a certain direction at other angles (such as 60°, 70°, etc.) with the lifting direction Z of the probe module 20, which can be determined according to the use needs.

[0094] The first guide structure 40 is provided so that the carrier 31 can move along the preset moving path relative to the support 10, and the moving track of the carrier 31 can be consistent each time.

[0095] In some embodiments, the first direction X is perpendicular to the lifting direction Z. This is convenient for design.

[0096] As shown in Figure 1 and Figure 2 In some embodiments, the battery testing device further includes a battery conveying mechanism 34. The battery conveying mechanism 34 is used to convey the battery monomer 11. The battery conveying mechanism 34 is provided separately from the probe module 20 and the carrier 31 in the lifting direction Z.

[0097] The battery conveying mechanism 34 is used to carry the battery monomer 11 and drive the battery monomer 11 to move.

[0098] The battery conveying mechanism 34 may include at least one of a belt conveyor, a chain conveyor, and a roller conveyor, and may also include other conveying mechanisms, depending on the conveying requirements. In addition, depending on the usage requirements, the battery conveying mechanism 34 may also include positioning structures such as clamps and trays for fixing the position of the battery cells 11.

[0099] The battery conveying mechanism 34 is spaced apart from the probe module 20 and the carrier 31 in the lifting direction Z. This means that there is a certain distance between the battery conveying mechanism 34 and the probe module 20, and also a certain distance between the battery conveying mechanism 34 and the carrier 31 in the lifting direction Z of the probe module 20. The size of this distance can be determined according to the usage requirements, and must be at least greater than or equal to the height of the battery cell 11. This ensures that the battery cell 11 does not come into contact with the carrier 31 or the probe module 20 during movement, and that the battery cell 11 is conveyed normally.

[0100] Specifically, when the carrier 31 is positioned at the first test position, the probe module 20, the carrier 31, and the battery delivery mechanism 34 are sequentially spaced apart in the lifting direction Z. When the carrier 31 is positioned at the first clearance position, the probe module 20 and the carrier 31 are spaced apart from the battery delivery mechanism 34 in the lifting direction Z, with the carrier 31 located outside the movement path of the probe module 20.

[0101] The battery conveying mechanism 34 can improve the conveying efficiency of the battery cell 11 to a certain extent, thereby improving the detection efficiency of the battery cell 11 to a certain extent.

[0102] like Figure 5 and Figure 6 As shown, Figure 5 This is a schematic diagram of the blocking mechanism in a battery testing apparatus provided in some embodiments of this application; Figure 6 This is a bottom view schematic diagram of a partial structure of the blocking mechanism in a battery testing apparatus provided in some embodiments of this application. In some embodiments, the battery testing apparatus further includes a blocking mechanism 50. The blocking mechanism 50 has a blocking member 51. The blocking member 51 is capable of reciprocating between a first position and a second position. In the first position, the blocking member 51 is capable of confining at least a portion of the battery cell to a second test position. In the second test position, the battery cell is capable of contacting and conducting with the probe module 20. In the second position, the blocking member 51 is positioned to avoid the battery cell.

[0103] The blocking mechanism 50 is a mechanism that can both limit the battery cell to be tested to the second test position and allow the battery cell to pass through normally after the test is completed.

[0104] The blocking member 51 is a component in the blocking mechanism 50 that is movable relative to the support 10 and is capable of contacting and conducting with the battery cell. The blocking member 51 can be composed of one or more components, can be arranged in a regular structure, such as a block structure, an arc structure, etc., or can be arranged in an irregular structure.

[0105] The blocking mechanism 50 generally includes at least a power mechanism for driving the blocking member 51 to reciprocate between the first position and the second position, in addition to the blocking member 51. The power mechanism can be a linear driving mechanism, a rotary driving mechanism, or other driving mechanisms, which can be determined according to the needs of use.

[0106] The first position and the second position can be determined according to the needs of use. In the first position, at least part of the blocking member 51 contacts and conducts with the battery cell, so as to block the battery cell from continuing to move under the pushing of the battery conveying mechanism 34. In the second position, the blocking member 51 does not contact and conduct with the battery cell, and the battery cell can move under the pushing of the battery conveying mechanism 34.

[0107] The working principle of the embodiment is as follows:

[0108] Before the battery cell to be tested moves to the second test position, the blocking mechanism 50 controls the blocking member 51 to move to the first position, so that when the battery cell to be tested moves to the second test position, the battery cell will stop at the second test position under the action of the blocking member 51. The second test position is located on the moving path of the probe module 20, or on the extension line of the moving path. After the battery cell stops at the second test position, the probe module 20 can be controlled to move towards the battery cell until the probes in the probe module 20 contact and conduct with the pole column in the battery cell, and then the probe module 20 and the tester connected with the probe module 20 detect the resistance of the battery cell.

[0109] After the detection is completed, the probe module 20 is controlled to return to the original position, and the blocking member 51 moves to the second position. In the above operation process, the battery conveying mechanism 34 can be stopped for waiting or can continue to work. When the battery conveying mechanism 34 continues to work, after the blocking member 51 moves away from the battery cell, the battery cell can continue to move forward under the conveying of the battery conveying mechanism 34.

[0110] The arrangement of the blocking mechanism 50 in the embodiment enables the battery conveying mechanism 34 to continue to work without stopping for waiting during part of the detection process of the battery cell, so that when a plurality of groups of battery cells are sequentially arranged on the battery conveying mechanism 34 along the conveying direction of the battery conveying mechanism 34, the plurality of groups of battery cells can be detected in turn and quickly, which helps to improve the efficiency of the battery detection operation.

[0111] For example, Figure 5 For example, Figure 6As shown, in some embodiments, the blocking mechanism 50 further includes a second driving mechanism 52. At least a portion of the second driving mechanism 52 is fixed relative to the bracket 10, and the second driving mechanism 52 is connected to the blocking member 51. The second driving mechanism 52 is used to drive the blocking member 51 to reciprocate between a first position and a second position.

[0112] The second drive mechanism 52 can be a linear drive component 521, such as a motor, cylinder, electric cylinder, hydraulic cylinder, etc., or a rotary drive component, such as a rotary drive arm, etc. It can also include both linear drive component 521 and rotary drive component, or include other structures, such as the first guide structure 40, limit structure, etc., depending on the application requirements.

[0113] At least a portion of the second drive mechanism 52 is fixedly disposed relative to the bracket 10. This can be either the second drive mechanism 52 is fixedly mounted on the bracket 10, or the main body of the second drive mechanism 52 is fixedly mounted on a frame that is fixed relative to the bracket 10. Regardless of the arrangement, a portion of the second drive mechanism 52 (such as the drive end) can generally move relative to the bracket 10.

[0114] The connection between the second drive mechanism 52 and the blocking member 51 means that the drive end of the second drive mechanism 52 is connected to the blocking member 51. The two can be directly connected by welding, bolting, or other methods, or they can be connected by means of a connector, depending on the application requirements.

[0115] The second drive mechanism 52 is designed to allow the blocking member 51 to move relative to the support 10 along a preset moving path, ensuring that the moving trajectory of the blocking member 51 is consistent each time. Compared with manual control, this reduces the risk of operational errors caused by human factors. On the other hand, when the second drive mechanism 52 uses a non-manually driven power source, it can improve the detection efficiency of the battery testing device.

[0116] like Figure 6 As shown, in some embodiments, the second drive mechanism 52 includes a linear drive assembly 521, a third guide member 522, and a fourth guide member 523. The third guide member 522 is fixedly disposed relative to the bracket 10. The fourth guide member 523 is connected to the blocking member 51, and the fourth guide member 523 is slidably connected to the third guide member 522. The linear drive assembly 521 is connected to the blocking member 51 and / or the fourth guide member 523.

[0117] The linear drive assembly 521 can be an electric cylinder, a pneumatic cylinder, a hydraulic cylinder, etc., depending on the application requirements.

[0118] The third guide 522 is fixedly arranged relative to the support 10, which can be fixedly connected with the support 10 or fixedly arranged on other frame body fixedly arranged relative to the support 10.

[0119] The third guide 522 and the fourth guide 523 can be arranged one or more, which can be determined according to the arrangement position and structure of the third guide 522 and the fourth guide 523.

[0120] The third guide 522 can be composed of one or more components. For example, the third guide 522 can be composed of a guide rod, a guide rail or other components, can simultaneously include a guide rod and a guide rail, or can be composed of other components.

[0121] The fourth guide 523 can be composed of one or more components, and the specific structure can be determined according to the structure of the third guide 522. For example, if the third guide 522 is a guide rod, the fourth guide 523 can be a sleeve arranged outside the guide rod, which is in sliding contact with the guide rod; if the third guide 522 is a guide rail, the fourth guide 523 can be a sliding block arranged on the guide rail; if the third guide 522 is a sliding block, the fourth guide 523 can be a guide rail or a guide rod arranged on the guide rail.

[0122] The fourth guide 523 can be directly connected with the blocking piece 51 by welding, insertion, clamping or other methods, or can be connected with the blocking piece 51 by means of a connecting piece, which can be determined according to the use requirement.

[0123] The linear drive assembly 521 is connected with the blocking piece 51 and / or the fourth guide 523, which includes the following cases: first, the linear drive assembly 521 is connected with the blocking piece 51; second, the linear drive assembly 521 is connected with the fourth guide 523; third, the linear drive assembly 521 is connected with both the blocking piece 51 and the fourth guide 523.

[0124] The second drive mechanism 52 not only includes the linear drive assembly 521, but also includes the third guide 522 and the fourth guide 523, which can make the blocking piece 51 move along the preset movement path relative to the support 10, and the arrangement of the third guide 522 and the fourth guide 523 can also support the blocking piece 51 to some extent, reduce the risk of shaking of the blocking piece 51 during movement, and also reduce the risk of loosening of the connection between the blocking piece 51 and the linear drive assembly 521.

[0125] For example, Figure 1 and Figure 2As shown, in some embodiments, the battery testing apparatus further includes a second guide structure 60. At least a portion of the second guide structure 60 is disposed between the battery conveying mechanism 34 and the probe module 20 in the lifting direction Z. The second guide structure 60 is used to guide the battery cell 11 to the second test position according to a preset placement. The blocking member 51 is disposed at least at the second position to avoid the second guide structure 60.

[0126] The second guiding structure 60 is a structure that guides the battery cell 11 to move along a preset movement trajectory and a preset placement method. The preset placement method is generally determined according to the placement method of the positive electrode probe 221 and the negative electrode probe 222 connected to the same tester in the probe module 20. For example, if the positive electrode probe 221 and the negative electrode probe 222 are arranged in a straight line in front and behind order, then the battery cell 11 is also arranged in a straight line with the positive electrode post and the negative electrode post arranged in front and behind order.

[0127] The second guide structure 60 can be composed of one or more components, such as two spaced guide plates, a U-shaped guide, or other configurations, as long as the above-mentioned technical effects can be achieved. The specific configuration can be determined according to the application requirements.

[0128] The blocking member 51 is configured to avoid the second guide structure 60 at least in the second position. This means that the blocking member 51 can be configured to avoid the second guide structure 60 only in the second position, or it can be configured to avoid the second guide structure 60 in other positions as well, depending on the application requirements. When the blocking member 51 avoids the second guide structure 60 in multiple positions, avoiding the second guide structure 60 means that the blocking member 51 will not interfere with the second guide structure 60 during its movement. When the blocking member 51 avoids the second guide structure 60 only in the second position, avoiding the second guide structure 60 means that the blocking member 51 does not interfere with the second guide structure 60 in the second position, and the two are misaligned.

[0129] The second guide structure 60 allows the battery cell 11 to reach the second test position according to the preset placement method, and to make stable contact and conduction with the probe in the probe module 20, thereby making the detection results accurate.

[0130] like Figure 1 As shown, in some embodiments, the second guide structure 60 includes a fifth guide member 61 and a rolling member 62. The fifth guide member 61 is disposed along a first direction X. Two sets of fifth guide members 61 are provided. The two sets of fifth guide members 61 are spaced apart along a third direction Y2 and form a channel. The channel is used for the passage of the battery cell 11. The rolling member 62 is disposed on the fifth guide member 61 and is used for rolling contact with the battery cell 11. The third direction Y2 is perpendicular to both the first direction X and the lifting direction Z.

[0131] The fifth guide 61 can be composed of one component or multiple components, and at least includes an elongated structure. The length direction of the elongated structure is arranged along the first direction X, i.e. extends along the first direction X.

[0132] Each group of the fifth guide 61 can be provided with one or multiple fifth guides 61. When each group of the fifth guide 61 is provided with multiple fifth guides 61, the multiple fifth guides 61 can be arranged at intervals along the lifting direction Z or connected in sequence.

[0133] The third direction Y2 can be the same direction as the second direction Y1, or arranged at an angle with the second direction Y1.

[0134] The size of the passage in the third direction Y2 is generally slightly larger than the size of the battery monomer 11, so that the battery monomer 11 can pass through the passage, and the distance between the fifth guide 61 and the battery monomer 11 is close, which helps to guide the moving direction and the placement mode of the battery monomer 11.

[0135] The rolling member 62 can be a roller, a roller shaft, a spherical body, etc., which can be determined according to the use needs. The rolling contact refers to that when the rolling member 62 and the battery monomer 11 are in contact, there is rolling motion, and the relative sliding (or extremely small sliding) state of the contact surface of the two is maintained.

[0136] The second guide structure 60 can only include the fifth guide 61 and the rolling member 62, and can also include other structures such as a limiting member, a fixing member, etc. according to the use needs, which can be determined according to the use needs. Regardless of the arrangement, the second guide structure 60 at least includes the fifth guide 61 and the rolling member 62, so that the second guide structure 60 and the battery monomer 11 can realize rolling contact, so that the friction between the two is small, and the battery monomer 11 can reach the second test position according to the preset placement mode and stably contact and conduct with the probe in the probe module 20, achieving multiple purposes at one time.

[0137] In some embodiments, one side of the blocking member 51 facing the battery conveying mechanism 34 is located between the second guide structure 60 and the carrier 31 in the lifting direction Z.

[0138] In this way, on the basis that the second direction Y1 is perpendicular to the lifting direction Z, the blocking member 51 can avoid the second guide structure 60 during the movement between the first position and the second position, and will not interfere with the second guide structure 60.

[0139] As shown in FIG. 1, FIG. 2 and FIG. 3, the battery test device provided by some embodiments of the present application includes a support, a lifting mechanism and a probe module. Figures 7 to 8 Figure 7 FIG. 1 is a front structural schematic diagram of the combination structure of the support, the lifting mechanism and the probe module in the battery test device provided by some embodiments of the present application; Figure 8 ​This is a front view schematic diagram of the probe module in a battery testing apparatus provided in some embodiments of this application. In some embodiments, the probe module 20 includes a support frame 21 and multiple probe groups 22. The support frame 21 is movable relative to the bracket 10. The multiple probe groups 22 are sequentially arranged on the support frame 21 along a third direction.

[0140] The support frame 21 can be connected to the lifting mechanism 33 if the lifting mechanism 33 is present, or it can be directly connected to the support 10 for lifting if the lifting mechanism 33 is not present. The specific connection can be determined according to the usage requirements.

[0141] The support frame 21 can be composed of one or more components and can be set into different shapes according to the needs of use, such as a block structure, a T-shaped structure, or other shapes.

[0142] A probe assembly 22 includes at least one positive probe 221 and one negative probe 222 connected to the same tester. In addition, depending on the application requirements, the probe assembly 22 may also include a connection structure connecting the positive probe 221 and the negative probe 222.

[0143] The probe module 20 adopts the solution provided in this embodiment, so that the same probe module 20 has multiple probe groups 22, which can realize the simultaneous detection of multiple battery cells 11 or multiple standard resistors 32, which is conducive to the mass production of battery cells 11.

[0144] like Figure 7 As shown, in some embodiments, multiple probe modules 20 are provided, and the multiple probe modules 20 are arranged sequentially along the third direction Y2.

[0145] Two adjacent probe modules 20 can be set apart or connected together, depending on the needs of use.

[0146] The solution provided in this embodiment has multiple probe modules 20, which allows the battery testing device to test multiple battery cells 11 simultaneously, which is helpful for the mass production of battery cells 11.

[0147] like Figure 9 As shown, Figure 9 This is a three-dimensional structural diagram of a probe module in a battery testing apparatus provided in some embodiments of this application. In some embodiments, the probe group 22 includes a positive electrode probe 221 and a negative electrode probe 222. The spacing between the positive electrode probe 221 and the negative electrode probe 222 in the same probe group 22 is adjustable.

[0148] Specifically, the positive probe 221 and the negative probe 222 in the same probe group 22 can be slidably disposed on the support plate along the first direction X to achieve the adjustment of the distance between them.

[0149] This allows the spacing between the positive electrode probe 221 and the negative electrode probe 222 in the probe group 22 to be adjusted according to the spacing between the positive electrode post and the negative electrode post in different battery cells 11, so that the battery testing device can be used to test different battery cells 11 and has a wide range of applications.

[0150] like Figure 9 and Figure 10 As shown, Figure 10 The diagram below shows a partial circuit diagram of a battery testing apparatus provided in some embodiments of this application. In some embodiments, there are n probe groups 22, where n is greater than or equal to 2. A recognition resistor 12 is connected in parallel between the positive probe 221 and the negative probe 222 of the same probe group 22 in at least n-1 probe groups 22. The resistance values ​​of the recognition resistor 12 are different for different probe groups 22.

[0151] The positive electrode probe 221 is used to connect to the positive terminal of the tester and to make contact with the positive terminal of the battery cell 11. The negative electrode probe 222 is used to connect to the negative terminal of the tester and to make contact with the negative terminal of the battery cell 11.

[0152] The identification resistor 12 is generally a resistor with a fixed resistance value, mainly used for identification.

[0153] By identifying the addition of resistor 12, users can easily confirm, through the display data of the tester connected to probe group 22, which probe group 22 is detecting a problem with the battery cell 11.

[0154] Specifically, multiple probe groups 22 can be labeled as probe group 221, probe group 222... probe group 22n, and the testers corresponding to the multiple probe groups 22 can be labeled as tester 1, tester 2... tester n. During testing, battery cells 11 of the same specification are usually divided into different columns and passed through different probe groups 22.

[0155] To facilitate observation of the outputs from multiple testers, data from multiple testers can be transmitted to and displayed on the same display device. If this display device cannot show which tester's output corresponds to each data point, then when one of the displayed data points is abnormal, the user cannot identify which tester and the corresponding battery cell 11 of probe group 22 is faulty. This makes it difficult to promptly identify the problematic battery cell 11, affecting testing efficiency.

[0156] The setting of the identification resistor 12 can make the currents measured by different testers through the same specification battery monomer 11 different. The tester can output the detected current and the measured resistance of the battery monomer 11 at the same time. The detection data of which tester can be determined through the current corresponding to the resistance, so that the data measured by which probe group 22 can be determined, and then it can be concluded which battery monomer 11 has a problem.

[0157] Therefore, the setting of the identification resistor 12 can help users quickly find the problem battery monomer 11, and help improve detection efficiency and production efficiency.

[0158] As shown in Figure 1 In some embodiments, the second guide structure 60 is provided with a plurality of. The second guide structure 60 is provided corresponding to the probe group.

[0159] The second guide structure 60 is provided corresponding to the probe group. The second guide structure 60 can be provided one-to-one corresponding to the probe group, or the same second guide structure 60 can be provided corresponding to a plurality of probe modules 20, or a plurality of second guide structures 60 can be provided corresponding to the same probe group. The specific correspondence can be determined according to the use needs.

[0160] Specifically, the second guide structure 60 is provided one-to-one corresponding to the probe group, that is, the number of the second guide structure 60 is consistent with the number of the probe group. Any second guide structure 60 can guide the battery monomer 11 to the lower side of the corresponding probe group in a preset arrangement manner, so that the battery monomer 11 can be stably contacted and conducted with the probe group.

[0161] The same second guide structure 60 can be provided corresponding to a plurality of probe modules 20. When the distance between the adjacent two probe groups is small, two rows of battery monomers 11 arranged side by side can be arranged in the channel formed by the same second guide structure 60. The two probe groups can simultaneously detect the two battery monomers 11 arranged side by side in the channel formed by the same second guide structure 60.

[0162] A plurality of second guide structures 60 can be provided corresponding to the same probe group. When the battery monomer 11 is high and heavy, a plurality of second guide structures 60 are needed to cooperate to realize the guidance. At this time, the plurality of second guide structures 60 can be arranged in the lifting direction Z, and the battery monomers 11 corresponding to the same probe group are guided to the lower side of the probe group in a preset arrangement manner through the cooperation of the plurality of second guide structures 60.

[0163] It should be noted that, since the distance between the probe groups is adjustable, the distance between the two groups of fifth guide pieces 61 in the same second guide structure 60 can also be set to be adjustable, which helps to improve the adaptability of the second guide structure 60 and the probe group.

[0164] The second guide structure 60 is provided in plurality, and the second guide structure 60 is arranged in correspondence with the probe group, so that the battery monomer 11 at different positions can be moved to the position below the probe group according to the preset arrangement mode, thereby being in stable contact with the probe group for conduction, so that the detection result is accurate.

[0165] As shown in Figure 5 In some embodiments, the blocking piece 51 includes a blocking part 511 and a connecting part 512. The blocking part 511 is provided in plurality. The plurality of blocking parts 511 are arranged in correspondence with the plurality of probe groups 22. The blocking part 511 is connected with the linear driving assembly 521 and / or the fourth guide 523 through the connecting part 512.

[0166] The blocking part 511 is a component or part in the blocking piece 51 for contact and conduction with the battery monomer 11. The connecting part 512 is a component or part in the blocking piece 51 for connecting the blocking part 511 and the linear driving assembly 521 and / or the fourth guide 523.

[0167] The blocking part 511 is arranged in correspondence with the probe group 22, which can be one-to-one correspondence between the blocking part 511 and the probe group 22, or the same blocking part 511 can be arranged in correspondence with multiple probe groups 20, or multiple blocking parts 511 can be arranged in correspondence with the same probe group 22, which can be determined according to the use requirement.

[0168] Specifically, the blocking part 511 is arranged in one-to-one correspondence with the probe group 22, which means that the number of the blocking part 511 is consistent with the number of the probe group 22, and any blocking part 511 can block the battery monomer 11 below the corresponding probe group 22, so that the battery monomer 11 can be in stable contact with the probe group 22 for conduction.

[0169] The same blocking part 511 can block multiple battery monomers 11 arranged side by side at the same time when the distance between the adjacent two probe groups 22 is small and the volume of the single blocking part 511 is large, and the multiple probe groups 22 can detect the multiple battery monomers 11 blocked by the same blocking part 511 at the same time.

[0170] When the battery monomer 11 is wide and the width of the single blocking part 511 is small, multiple blocking parts 511 are needed to block the single battery monomer 11, and the multiple blocking parts 511 can be arranged in the third direction and cooperate to block the battery monomer 11 corresponding to the same probe group 22.

[0171] The connecting portion 512 can be provided with one or more. When the connecting portion 512 is provided with one, the plurality of blocking portions 511 are connected with the same connecting portion 512; when the connecting portion 512 is provided with a plurality, the plurality of blocking portions 511 can be connected with the plurality of connecting portions 512 one by one, or each blocking portion 511 can be connected with a plurality of connecting portions 512, which can be determined according to the use requirement.

[0172] The blocking portion 511 is connected with the linear driving assembly 521 and / or the fourth guide 523 through the connecting portion 512, including the following cases: first, the blocking portion 511 is connected with the fourth guide 523 through the connecting portion 512; second, the blocking portion 511 is connected with the linear driving assembly 521 through the connecting portion 512; third, the blocking portion 511 is connected with the linear driving assembly 521 and the fourth guide 523 through the connecting portion 512.

[0173] The blocking member 51 adopts the scheme provided in the embodiment, so that the structure of the blocking member 51 is simple and easy to install.

[0174] In some embodiments, the first position and the second position are arranged along a second direction Y1, and the second direction Y1 is arranged at an angle with respect to the first direction X and the lifting direction Z.

[0175] In the embodiment, the first direction X, the second direction Y1 and the lifting direction Z can be straight lines respectively, or can be curves respectively.

[0176] The battery testing device has a large number of components, and the second direction Y1 is arranged at an angle with respect to the first direction X and the lifting direction Z, so that there are a plurality of arrangement modes, which can be determined according to the structure and layout space of the battery testing device. In this way, the risk of interference between the blocking member 51 and other components in the battery testing device during movement of the blocking member 51 can be reduced, and the overall space utilization of the battery testing device can be improved.

[0177] In some embodiments, the second direction Y1 is arranged perpendicularly to the lifting direction Z and at an acute angle or an obtuse angle with respect to the first direction X.

[0178] The second direction Y1 is arranged perpendicularly to the lifting direction Z, which is convenient for design. The second direction Y1 is arranged at an acute angle or an obtuse angle with respect to the first direction X, which can reduce the risk of interference between the blocking member 51 and other components in the battery testing device during movement of the blocking member 51, and can improve the overall space utilization of the battery testing device.

[0179] As shown in FIG. 1, Figure 1 In some embodiments, the battery testing device further includes a lifting mechanism 33. The lifting mechanism 33 is arranged on the bracket 10. The probe module 20 is movably connected with the bracket 10 through the lifting mechanism 33.

[0180] The lifting mechanism 33 can include a linear driving mechanism such as a motor, a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, etc., can include a rotary driving mechanism such as a rotary driving arm, etc., can include both a linear driving mechanism and a rotary driving mechanism, or can include other structures such as a first guide structure 40, a limiting structure, etc., as long as the probe module 20 can move along the preset moving path relative to the support 10 under the driving of the lifting mechanism 33, and the specific implementation can be determined according to the use requirement.

[0181] The lifting mechanism 33 is arranged on one hand to enable the probe module 20 to move along the preset moving path relative to the support 10, so that the moving track of the probe module 20 is consistent each time, and compared with manual control movement, the product detection difference caused by human factors can be reduced; on the other hand, when the lifting mechanism 33 adopts a non-manual driving power source, the detection efficiency of the battery testing device can be improved.

[0182] As shown in FIG. 1, Figures 1 to 10 A battery testing device is provided in an embodiment of the present application. The battery testing device comprises a support 10, a probe module 20, a first driving mechanism 30, a carrier 31, a lifting mechanism 33, a blocking mechanism 50, a first guide structure 40, a battery conveying mechanism 34, and a second guide structure 60. The lifting mechanism 33 is arranged on the support 10. The probe module 20 is connected to the support 10 through the lifting mechanism 33. Specifically, the lifting mechanism 33 comprises a longitudinal cylinder, a probe fixing plate, a reinforcing rib, a sliding block and sliding rail assembly, a sliding block connecting plate, and a connecting angle brace plate. The sliding block and sliding rail assembly is arranged in two groups at two ends of the support 10. The support 10 is a portal frame support 10. The longitudinal cylinder is fixedly installed on a transverse plate of the support 10, and the driving end penetrates through the transverse plate and is connected to the probe fixing plate. The two ends of the probe fixing plate are connected to the sliding blocks in the sliding block and sliding rail assembly through the sliding block connecting plate and the connecting angle brace plate. The sliding rails in the sliding block and sliding rail assembly are fixedly installed on longitudinal plates of the support 10, and the sliding blocks are slidingly connected to the sliding rails. Each longitudinal plate is provided with two sliding rails.

[0183] At least part of the first driving mechanism 30 can move relative to the support 10. The carrier 31 is used for carrying a standard resistance 32. The carrier 31 is connected to the first driving mechanism 30 and can reciprocally move relative to the support 10 at a first test position and a first avoiding position under the driving of the first driving mechanism 30. The standard resistance 32 can be in contact and conduction with the probe module 20 at the first test position. The carrier 31 and the standard resistance 32 avoid the probe module 20 and the battery monomer 11 at the first avoiding position.

[0184] The first guide structure 40 comprises a first guide 41 and a second guide 42. The first guide 41 is fixedly arranged relative to the support 10. The second guide 42 is arranged on the carrier 31, and the second guide 42 is slidingly connected to the first guide 41 along a first direction X. The first direction X is perpendicular to the lifting direction Z.

[0185] The battery conveying mechanism 34 is configured to convey the battery cell 11. The battery conveying mechanism 34 is disposed between the probe module 20 and the carrier 31 in the lifting direction Z.

[0186] The blocking mechanism 50 includes a blocking member 51 and a second driving mechanism 52. The blocking member 51 is configured to reciprocate between a first position and a second position. In the first position, the blocking member 51 is configured to restrict at least part of the battery cell 11 to a second test position. In the second test position, the battery cell 11 is configured to be in contact with the probe module 20. In the second position, the blocking member 51 is configured to avoid the battery cell 11.

[0187] At least part of the second driving mechanism 52 is fixedly disposed relative to the support 10, and the second driving mechanism 52 is connected with the blocking member 51. The second driving mechanism 52 is configured to drive the blocking member 51 to reciprocate between the first position and the second position.

[0188] The second driving mechanism 52 includes a linear driving assembly 521, a third guide 522, and a fourth guide 523. The third guide 522 is fixedly disposed relative to the support 10. The fourth guide 523 is connected with the blocking member 51, and the fourth guide 523 is slidingly connected with the third guide 522. The linear driving assembly 521 is connected with the blocking member 51 and / or the fourth guide 523.

[0189] At least part of the second guide structure 60 is disposed between the battery conveying mechanism 34 and the probe module 20 in the lifting direction Z. The second guide structure 60 is configured to guide the battery cell 11 to reach the second test position in a preset arrangement. The blocking member 51 is configured to avoid the second guide structure 60 at least in the second position.

[0190] The second guide structure 60 includes a fifth guide 61 and a rolling member 62. The fifth guide 61 is disposed along the first direction X. The fifth guide 61 is provided in two groups. The two groups of fifth guides 61 are spaced apart along a third direction and form a channel. The channel is configured to pass the battery cell 11. The rolling member 62 is disposed on the fifth guide 61. The rolling member 62 is configured to be in rolling contact with the battery cell 11. The third direction is perpendicular to the first direction X and the lifting direction Z.

[0191] The probe module 20 includes a support frame 21 and a plurality of probe groups 22. The support frame 21 is configured to be lifted relative to the support 10. The plurality of probe groups 22 are sequentially disposed on the support frame 21 along the third direction.

[0192] The support plate can include a longitudinal plate and a transverse plate connected with each other. The longitudinal plate is connected with the probe connecting plate. The probe group 22 is slidingly disposed on the side of the transverse plate away from the longitudinal plate.

[0193] A plurality of probe modules 20 are provided. The plurality of probe modules 20 are sequentially disposed along the third direction.

[0194] The probe set 22 includes a positive probe 221 and a negative probe 222. The probe set 22 is provided with n. n is greater than or equal to 2. The same probe set 22 in at least n-1 probe sets 22 is connected in parallel between the positive probe 221 and the negative probe 222. Different probe sets 22 correspond to different resistances of the identification resistor 12.

[0195] The second guide structure 60 is provided with a plurality of. The second guide structure 60 is provided corresponding to the probe set 22.

[0196] The blocking piece 51 includes a blocking part 511 and a connecting part 512. The blocking part 511 is provided with a plurality of. The blocking part 511 is provided corresponding to the probe set 22. The blocking part 511 is connected with the linear drive assembly 521 and / or the fourth guide 523 through the connecting part 512.

[0197] The first position and the second position are arranged along the second direction Y1. The second direction Y1 is arranged perpendicular to the lifting direction Z. It is arranged at an acute angle or an obtuse angle with the first direction X.

[0198] The side of the blocking piece 51 facing the battery conveying mechanism 34 is located between the second guide structure 60 and the carrier 31 in the lifting direction Z.

[0199] The battery test device provided by the embodiment relates to the internal resistance test and verification of the primary liquid injection machine for the battery monomer 11. The internal resistance test and verification is one of the production processes of the battery monomer 11.

[0200] Different specifications of the battery monomer 11 need to use different standard resistors 32 for verification.

[0201] The driving mechanism in the embodiment is a non-human power mechanism such as an electric mechanism and a pneumatic mechanism. When used, different modes can be selected according to different needs in the production process. The motion of different mechanisms is controlled by PLC to reach the corresponding test position for internal resistance test, so as to realize full-automatic verification of the equipment without stopping, and one-key operation. The battery test device can realize production line production test function and daily inspection, and also can realize self-diagnosis function of the measuring instrument. The verification data is automatically recorded to the local and can be uploaded to the MES (Manufacturing Execution System) of the manufacturing enterprise production process execution system, thereby reducing the manual work intensity.

[0202] A group of test lines are connected in series and parallel in the test circuit, connected to the standard resistor 32, and calibrated through different relay control lines, thereby avoiding batch quality accidents caused by instrument failure in the production process. Specifically, Figure 10As shown, when the resistance of the battery monomer 11 detected by the tester is normal, the relay (KM1, KM2, KM3 or KM4) in series with the corresponding tester is connected, and the tester is normally used, when the resistance of the battery monomer 11 is abnormal, the relay (KM1, KM2, KM3 or KM4) in series with the corresponding tester is disconnected, and the relay (KM5, KM6, KM7 or KM8) on the circuit provided with the NG resistor 70 is turned on.

[0203] The self-checking process of the battery testing device provided by the embodiment is as follows:

[0204] The start-up process verification process is started, and the different switching of the relays in the circuit is used to test the standard resistor 32, so that the single-channel verification of the battery testing device can be realized, and the accuracy of the instrument itself is ensured (the battery testing device of different channels can correspond to the same specification standard resistor 32, and the battery testing device of different channels can correspond to different specification standard resistors 32, the test result is compared with the value of the standard resistor 32, and the result is OK, then the inspection is ended; the result is NG, the equipment alarms, and the personnel handles the troubleshooting).

[0205] The battery testing device provided by the embodiment can realize the simultaneous detection of multiple groups of battery monomers 11 through multiple channels. The electrical components in the device are connected with the controller, and the full-automatic verification process of the equipment can be performed regularly and the data can be automatically uploaded, so that the comprehensive efficiency of the equipment is improved. In addition, the spacing between the adjacent two probe groups 22 in the battery testing device is adjustable, and the carrier 31 and the battery monomer 11 can move along the first direction X, so that the measurement of battery monomers 11 of different sizes can be realized.

[0206] According to the use needs, the NG slot can be arranged at the rear end of the battery testing device, and when the resistance of the battery monomer 11 is detected abnormally, the battery monomer 11 can be moved to the NG slot through the dispatching system.

[0207] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery testing device, characterized by, The device includes a bracket, a probe module, a first drive mechanism, and a carrier. The probe module is vertically and vertically mounted on the bracket, and at least a portion of the first drive mechanism is movable relative to the bracket. The carrier is used to carry a standard resistor, and is connected to the first drive mechanism, and is capable of reciprocating relative to the bracket at a first test position and a first clearance position under the drive of the first drive mechanism. The standard resistor is able to contact and conduct with the probe module at the first test position, and the carrier and the standard resistor are positioned at the first clearance position to avoid the probe module and the battery cell. The battery testing device further includes a blocking mechanism, which has a blocking member that can reciprocate between a first position and a second position. In the first position, the blocking member can restrict at least a portion of the battery cell to the second test position. In the second test position, the battery cell can contact and conduct with the probe module. In the second position, the blocking member is positioned to avoid the battery cell. The first position and the second position are set along a second direction, which is at an angle to the lifting direction of the probe module.

2. The battery testing device of claim 1, wherein, The battery testing device further includes a first guide structure, which includes a first guide member and a second guide member. The first guide member is fixedly disposed relative to the bracket, and the second guide member is disposed on the support member. The second guide member and the first guide member are slidably connected along a first direction, and the first direction is set at an angle to the lifting direction and the second direction.

3. The battery testing device of claim 2, wherein, The first direction is perpendicular to the lifting direction.

4. The battery testing device of claim 2, wherein, The battery testing device also includes a battery conveying mechanism for conveying individual battery cells. The battery conveying mechanism is spaced apart from the probe module and the carrier in the lifting direction.

5. The battery testing device of claim 4, wherein, The blocking mechanism further includes a second driving mechanism, at least a portion of which is fixed relative to the bracket and connected to the blocking member. The second driving mechanism is used to drive the blocking member to reciprocate between the first position and the second position.

6. The battery testing device of claim 5, wherein, The second drive mechanism includes a linear drive assembly, a third guide member, and a fourth guide member. The third guide member is fixedly disposed relative to the bracket. The fourth guide member is connected to the blocking member and is slidably connected to the third guide member. The linear drive assembly is connected to the blocking member and / or the fourth guide member.

7. The battery testing device of claim 6, wherein, The battery testing device further includes a second guide structure, at least a portion of which is disposed between the battery conveying mechanism and the probe module in the lifting direction. The second guide structure is used to guide the battery cell to the second test position according to a preset placement method. The blocking member is set to avoid the second guide structure at least in the second position.

8. The battery testing device of claim 7, wherein, The second guide structure includes a fifth guide member and a rolling member. The fifth guide member is arranged along a first direction and there are two sets of the fifth guide member. The two sets of the fifth guide member are spaced apart along a third direction and form a channel for the battery cell to pass through. The rolling member is arranged on the fifth guide member and is used to roll in contact with the battery cell. The third direction is perpendicular to both the first direction and the lifting direction.

9. The battery testing device of claim 8, wherein, The side of the blocking member facing the battery delivery mechanism is located between the second guide structure and the carrier member in the lifting direction.

10. The battery testing apparatus as described in claim 8, characterized in that, The probe module includes a support frame and multiple probe groups. The support frame is movable relative to the bracket, and the multiple probe groups are sequentially arranged on the support frame along the third direction.

11. The battery testing apparatus as described in claim 10, characterized in that, The probe module is provided in multiple ways, and the multiple probe modules are arranged sequentially along the third direction.

12. The battery testing apparatus as described in claim 11, characterized in that, The probe group includes a positive probe and a negative probe, and the spacing between the positive probe and the negative probe in the same probe group is adjustable.

13. The battery testing apparatus as described in claim 12, characterized in that, The probe group has n, where n is greater than or equal to 2. At least n-1 probe groups have a recognition resistor connected in parallel between the positive and negative probes of the same probe group. The resistance value of the recognition resistor is different for different probe groups.

14. The battery testing apparatus as described in claim 11, characterized in that, The second guide structure is provided in multiple ways, and the second guide structure is arranged in correspondence with the probe group.

15. The battery testing apparatus as described in claim 10, characterized in that, The blocking component includes a blocking part and a connecting part. Multiple blocking parts are provided. The blocking parts are arranged correspondingly to the probe group. The blocking parts are connected to the linear drive assembly and / or the fourth guide member through the connecting parts.

16. The battery testing apparatus according to any one of claims 2-15, characterized in that, The second direction is perpendicular to the lifting direction and forms an acute or obtuse angle with the first direction.

17. The battery testing apparatus according to any one of claims 1-15, characterized in that, The battery testing device also includes a lifting mechanism, which is located on the support frame, and the probe module is movably connected to the support frame through the lifting mechanism.

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