Battery testing device, battery testing method and battery production system

Abstract

The invention provides a battery testing device, a battery testing method and a battery production system, and the method comprises the steps: placing a battery between a pedestal and a pressurization part in a testing process; then, at least one of the pressurizing piece and the base is driven by a first driver to move in the preset direction, so that the pressurizing piece and the base move relatively, the pressurizing piece and the base can apply pressure to the battery, and the test pressurizing requirement is met; and finally, testing the pressurized battery by using the testing mechanism. As the preset direction is approximately parallel to the horizontal direction, the relative movement between the pressurizing piece and the base is or approximately horizontal movement, so that the battery does not need to be converted into a lying state from a vertical state before being tested, and the investment of additional equipment for overturning, carrying and the like is reduced. Therefore, the test structure and the test process are simplified, and the battery test efficiency is improved. Meanwhile, the probability that foreign matters are pressed into the battery due to pressurization can be reduced, and the risk of short circuit in the testing process is reduced.

Description

Battery testing device, battery testing method and battery production system Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery testing device, a battery testing method, and a battery production system. Background Art

[0002] With the rapid development of the lithium-ion battery industry, the requirements for power battery production efficiency and stability are becoming increasingly stringent. To ensure that batteries meet safety requirements, they must undergo relevant tests, such as pressure insulation testing and thickness measurement. However, structural design flaws in traditional testing equipment lead to complex structures and low testing efficiency. Furthermore, the testing process can easily lead to the risk of battery short circuits.

[0003] Summary of the Invention

[0004] Based on this, it is necessary to provide a battery testing device, a battery testing method and a battery production system to simplify the test structure, improve the test efficiency; and at the same time reduce the probability of short circuit risk during the test process.

[0005] In a first aspect, the present application provides a battery testing device, comprising: a pressurizing mechanism, including a first driver and a base and a pressurizing member arranged relatively spaced apart, wherein a battery is placed between the base and the pressurizing member, and the first driver is used to drive the pressurizing member and the base to move relative to each other in a preset direction to pressurize the battery; a testing mechanism, used to test the pressurized battery; wherein the preset direction is parallel to the horizontal direction.

[0006] The battery testing device described above, during the test process, places the battery between the base and the pressure member; then, using a first driver, drives at least one of the pressure member and the base to move in a preset direction, so that relative movement occurs between the two, so that the pressure member and the base can apply pressure to the battery to meet the test pressure requirements; finally, the pressurized battery is tested using a testing mechanism. Since the preset direction is parallel to the horizontal direction, the relative movement between the pressure member and the base is or is approximately horizontal, that is, the pressure mechanism of the present application is a horizontal pressure method, so that the battery does not need to be turned from a vertical state to a flat state before testing, reducing the investment in additional equipment such as flipping and transportation. This is conducive to simplifying the test structure and test process, and improving the efficiency of battery testing. At the same time, the battery testing device of the present application allows the battery to be kept in a vertical state for testing, thereby reducing the probability of foreign matter being pressed into the battery due to pressure, reducing the risk of short circuits during testing, and helping to improve the production stability of the battery.

[0007] In some embodiments, the battery testing device further includes a transfer mechanism, which is at least used to transfer the battery between the base and the pressurizing member. Thus, the transfer mechanism is used to complete the transfer of the battery, enabling automatic loading during the pressurization process, which is conducive to further improving testing efficiency.

[0008] In some embodiments, the transfer mechanism includes a movable structure and a clamping member disposed on the movable structure. The clamping member is used to clamp or release the battery, and the movable structure is used to at least drive the clamping member to transfer the clamped battery between the base and the pressure member. In this way, the clamping member is used to secure the battery, and the movable structure is then used to transfer the battery and the clamping member together between the base and the pressure member, facilitating smoother pressurized loading of the battery.

[0009] In some embodiments, the transfer mechanism further includes a safety component. This component is configured to trigger the movable structure to move the clamping component away from the obstacle when the clamping component collides with an obstacle in a vertical direction. This safety component allows the clamping component to avoid obstacles in a timely manner, reducing the risk of damage to the battery caused by obstacles during the release process.

[0010] In some embodiments, the moving structure includes a second driver and a lifter connected to the clamping member. The second driver is used to drive the lifter to move in a predetermined direction, and the lifter is used to drive the clamping member to move in a vertical direction. Thus, the lifter and the second driver cooperate to move the battery in both the horizontal and vertical directions, thereby accurately transferring the battery to the desired working position.

[0011] In some embodiments, the second actuator includes a drive shaft that extends in a predetermined direction and is connected to the lifter. When the second actuator is in an inoperative state, the drive shaft is not driven by the second actuator. This inoperative state of the second actuator allows the battery to follow the base or the pressure member, thereby ensuring that the battery can be stably clamped between the base and the pressure member, thereby improving test reliability.

[0012] In some embodiments, the testing mechanism includes a test driver and a test probe. The test probe is located on a side of the clamping member facing the battery, and the test driver is used to drive the test probe to extend until it contacts the battery electrode terminal. Thus, positioning the test probe on the side of the clamping member facing the battery facilitates the test driver to better drive the test probe into contact with the electrode terminal, thereby achieving effective testing.

[0013] In some embodiments, at least a portion of the movable structure can move with the battery during pressurization. Thus, when the battery is pressurized, at least a portion of the movable structure is designed to move with the battery, thereby improving the smoothness of the battery pressurization process and thereby improving the reliability of the test results.

[0014] In some embodiments, the battery testing device further includes a feeding mechanism located below the pressurizing mechanism. The feeding mechanism is used to transport the batteries to a receiving position for the transfer mechanism to retrieve the batteries. Thus, by placing the feeding mechanism below the pressurizing mechanism, the space above the feeding mechanism is utilized for pressurizing operations, thereby improving the space utilization of the battery testing device.

[0015] In some embodiments, the battery testing device further includes an adjustment mechanism connected to the feed mechanism, the adjustment mechanism being configured to drive the feed mechanism to move in a predetermined direction. Thus, by utilizing the adjustment mechanism to adjust the feed mechanism's position in the predetermined direction, the probability of collision between the pressurizing member or base and the feed mechanism during the pressurization process is reduced, thereby ensuring stable testing.

[0016] In some embodiments, the adjustment mechanism includes a third driver and a slide rail. The slide rail is located below the pressure mechanism and extends in a predetermined direction. The feed mechanism is mounted on the slide rail, and the third driver is used to drive the feed mechanism to move. Thus, the third driver drives the feed mechanism to move smoothly on the slide rail, making the position of the feed mechanism in the predetermined direction more precise and convenient.

[0017] In some embodiments, the feed mechanism includes a feed body and guide members disposed on either side of the feed body along a direction intersecting the feed direction. Each guide member is provided with a guide wheel for rolling engagement with the battery. Thus, providing guide members with guide wheels on either side of the feed body provides lateral protection for the battery while reducing friction between the guide members and the battery.

[0018] In some embodiments, the feeding mechanism further includes a distance adjustment component for adjusting the distance between the guide members on both sides. Thus, by using the distance adjustment component to adjust the distance between the guide members on both sides, the feeding body can be adapted to batteries of different sizes, thereby expanding the applicability of the device.

[0019] In some embodiments, the battery testing device further includes a feeding mechanism for conveying batteries to the conveying mechanism. In this way, the feeding mechanism provides batteries to the conveying mechanism, so that the battery testing device can operate stably and continuously.

[0020] In some embodiments, the pressurizing mechanism further includes a separator, movably disposed between the base and the pressurizing member, and configured to separate batteries arranged along a predetermined direction. Thus, the separator separates two adjacent batteries, preventing direct contact and thereby affecting the test results of multiple batteries during simultaneous testing.

[0021] In some embodiments, the pressurizing mechanism further includes a connector connected between the pressurizing member and the separator, allowing the pressurizing member to unidirectionally drive the separator toward a side away from the base. Thus, providing the connector between the pressurizing member and the separator effectively resets the separator without affecting the pressure applied to the battery between the pressurizing member and the separator, preparing for the next test.

[0022] In some embodiments, one end of the connector is fixed to the pressure member, while the other end flexibly extends through the separator. The portion of the connector extending beyond the separator is provided with an abutment portion configured to abut against the side of the separator facing away from the pressure member. In this manner, the structural coordination between the connector and the separator allows the pressure member to stably drive the separator in unidirectional motion, thereby facilitating effective reset of the separator.

[0023] In a second aspect, the present application provides a battery testing method, comprising the following steps: controlling at least one of a pressure member and a base to move horizontally so that the battery is subjected to a preset pressure between the pressure member and the base; and controlling a testing mechanism to test the battery.

[0024] In some embodiments, before the step of controlling at least one of the pressure member and the base to move horizontally, the method further includes: lifting the clamping member holding the battery using a lifter to remove the battery from the material removal position; driving the lifter to move in a predetermined direction, and positioning the battery between the base and the pressure member using the lifter. In this way, the lifter can be controlled to move along with the battery in the predetermined direction, thereby facilitating smooth clamping of the battery between the base and the pressure member.

[0025] In some embodiments, the step of controlling at least one of the pressure member and the base to move horizontally includes: controlling a lifter to be movable in the horizontal direction; and controlling at least one of the pressure member and the base to move so that the pressure member or the base drives the lifter to move horizontally. In this manner, the test driver drives the test probe to extend vertically, allowing the test probe to complete vertical battery testing.

[0026] In some embodiments, controlling a test mechanism to test a battery includes controlling a test driver to extend a test probe vertically until it contacts an electrode terminal of the battery. The test mechanism includes the test driver and the test probe. In this manner, utilizing a displacement sensor facilitates obtaining thickness parameters on the battery, enhancing testing convenience.

[0027] In some embodiments, the step of controlling the testing mechanism to test the battery further includes controlling a displacement sensor to obtain the horizontal spacing between two sides of the battery. Thus, the displacement sensor facilitates obtaining thickness parameters on the battery, improving testing convenience.

[0028] In a third aspect, the present application provides a battery production system, comprising any of the above battery testing devices.

[0029] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0031] FIG1 is an axial view of the structure of a battery testing device according to one or more embodiments;

[0032] FIG2 is a schematic diagram of the internal structure of the battery testing device described in FIG1 ;

[0033] FIG3 is a top view of a battery testing device according to one or more embodiments;

[0034] FIG4 is a schematic diagram of the cooperation between the lifter and the clamping component according to one or more embodiments;

[0035] FIG5 is a schematic structural diagram of a feeding mechanism according to one or more embodiments;

[0036] FIG6 is a perspective view of the cooperation of the frame, the pressurizing mechanism, and the adjusting mechanism according to one or more embodiments;

[0037] FIG7 is a schematic structural diagram of a feeding mechanism according to one or more embodiments;

[0038] FIG8 is another perspective view of the frame, the pressing mechanism, and the adjusting mechanism according to one or more embodiments;

[0039] FIG9 is a flowchart of a battery testing method according to one or more embodiments;

[0040] FIG10 is a second flow chart of a battery testing method according to one or more embodiments;

[0041] FIG11 is a flow chart of a battery testing method according to one or more embodiments. 100, battery testing device; 10, pressurizing mechanism; 11, base; 12, pressurizing member; 13, first driver; 14, separator; 15, connector; 16, pressure sensor; 20, testing mechanism; 21, test driver; 22, test probe; 23, displacement sensor; 24, test reference; 30, transfer mechanism; 31, moving structure; 311, second driver; 31a, drive shaft; 312, lifter; 32, clamping member; 321, mounting base; 322, clamping jaw; 323, material sensor; 33, Safety components; 40. Feeding mechanism; 41. Feeding body; 42. Guide member; 421. Guide wheel; 43. Distance adjustment member; 44. First sensor; 45. Second sensor; 46. Stop member; 50. Adjustment mechanism; 51. Third driver; 52. Slide rail; 53. Connecting plate; 60. Feeding mechanism; 70. Frame; 71. Beam; 72. Support member; 73. Base; 200. Battery; 210. Battery cell; X, preset direction; Y, feeding direction. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0044] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0045] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0047] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0048] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0049] In the description of the embodiments of this application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0050] Currently, market developments indicate that power batteries are becoming increasingly widespread. They are used not only in energy storage systems such as hydropower, thermal, wind, and solar power plants, but also in electric vehicles like electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also increasing, and the requirements for stable production are becoming increasingly stringent.

[0051] In order to ensure that the batteries produced meet safety requirements, the batteries need to be subjected to relevant tests, such as pressure insulation test and battery thickness measurement. Pressure insulation test refers to an important test method for detecting the insulation of battery cells. If the insulation test of battery cells fails, the insulation of the entire module and battery pack will fail, which has a greater impact. Battery thickness measurement is crucial for the assembly of modules. Inaccurate thickness measurement will directly affect the assembly of modules, and thus lead to battery performance failure. However, whether it is a pressure insulation test or a battery thickness measurement, a certain amount of pressure needs to be applied to the large surface of the battery. Pressure on the pressure insulation test can expose defects inside the battery, such as the presence of foreign particles, wrinkled diaphragms, and tab insertion defects. For battery thickness measurement, it can reduce deformation of the battery surface, improve flatness, and enhance the reliability of the measurement results.

[0052] During the pressure application process, traditional testing devices usually use a cylinder mechanism to push the first movable plate and the second movable plate in the vertical direction to apply vertical pressure to the battery. It can be seen that the battery needs to enter the testing device in a flat state (that is, the large surface of the battery is roughly parallel to the horizontal plane) so that the first movable plate and the second movable plate can act on the large surface of the battery. Since batteries are usually transported in a vertical state (that is, the large surface of the battery remains in a vertical state) during the production process, before the battery enters the testing device, it is necessary to configure flipping, handling and other equipment to make the battery change from a vertical state to a flat state. This makes the structure of the testing device complicated and the testing efficiency low.

[0053] At the same time, when the battery is squeezed in the vertical direction, hard foreign objects can easily fall onto the large surface of the battery. As the pressure increases, the hard foreign objects can easily be pressed into the interior of the battery, causing the risk of battery short circuit.

[0054] Based on the above considerations, in order to simplify the test structure and improve the test efficiency; at the same time, to reduce the probability of short circuit risk during the test process, the present application designs a battery testing device. During the test process, the battery is placed between the base and the pressure piece; then, a first driver is used to drive at least one of the pressure piece and the base to move in a preset direction, so that relative movement occurs between the two, so that the pressure piece and the base can apply pressure to the battery to meet the test pressure requirements; finally, the pressurized battery is tested using a test mechanism. Since the preset direction is parallel to the horizontal direction, the relative movement between the pressure piece and the base is or is approximately horizontal, that is, the pressure mechanism of the present application is a horizontal horizontal pressure method, so that the battery does not need to be turned from a vertical state to a flat state before testing, reducing the investment in additional equipment such as flipping and transportation. In this way, it is conducive to simplifying the test structure and test process and improving the efficiency of battery testing.

[0055] At the same time, the battery testing device of the present application allows the battery to be kept in a vertical state for testing, thereby reducing the chance of foreign matter being pressed into the battery due to pressure, reducing the risk of short circuits during testing, and helping to improve battery production stability.

[0056] It should be noted that the term "battery" in this application is a general term that can refer to battery cells or products such as battery modules. A battery module refers to a structure consisting of multiple battery cells connected in series, parallel, or in a hybrid configuration. Furthermore, the term "large surface" of a battery can refer to the large surface of a battery cell or the large surface of a battery module. The large surface of a battery module can be understood as a side of the battery module that is parallel to the large surfaces of the battery cells within it.

[0057] According to some embodiments of the present application, referring to Figures 1 to 3 , a battery testing device 100 is provided. The battery testing device 100 includes a pressurizing mechanism 10 and a testing mechanism 20. The pressurizing mechanism 10 includes a first driver 13 and a base 11 and a pressurizing member 12 spaced apart from each other. A battery 200 is positioned between the base 11 and the pressurizing member 12. The first driver 13 is configured to drive the pressurizing member 12 and the base 11 to move relative to each other along a predetermined direction X to pressurize the battery 200. The testing mechanism 20 is configured to test the pressurized battery 200; the predetermined direction X is parallel to the horizontal direction.

[0058] The first actuator 13 is the device that provides power for pressurizing the battery 200. It can be a device with telescopic function, such as a pneumatic cylinder, hydraulic cylinder, or electric cylinder, or a motor. If the first actuator 13 is a motor, a conversion mechanism is required to convert the motor's rotation into outwardly output telescopic power, such as a screw assembly, a crank slider mechanism, or a gear and rack combination.

[0059] The base 11 and the pressure member 12 refer to components located on opposite sides of the battery 200 and capable of applying pressure to the battery 200. The base 11 and the pressure member 12 can act on the same battery 200 or on different sides of different batteries 200. To ensure uniform force on the battery 200, the base 11 and the pressure member 12 can be designed as, but not limited to, a plate-like structure. Relative movement between the base 11 and the pressure member 12 can occur in a variety of ways, such as: the base 11 remains stationary, and the pressure member 12 moves toward or away from the base 11 under the action of the first driver 13; or, the pressure member 12 remains stationary, and the base 11 moves under the action of the first driver 13; or, both the pressure member 12 and the base 11 can move under the action of the first driver 13. In some examples, the base 11 remains stationary, and the pressure member 12 is connected to the output end of the first driver 13 and moves along a preset direction X under the action of the first driver 13. This unilateral application of pressure, with the base 11 as a reference, ensures uniformity in each test position of the battery 200. It also reduces the possibility of distorted test results for the battery 200 due to uneven bilateral pressure application. Furthermore, to obtain the pressure on the battery 200, a pressure sensor 16 may be provided. For example, a pressure sensor 16 may be provided between the pressure member 12 and the first actuator 13 to obtain the pressure applied by the first actuator 13 on the pressure member 12, thereby indirectly obtaining the pressure value on the battery 200.

[0060] A single battery 200 can be placed between the base 11 and the pressure member 12, or multiple batteries 200 can be placed simultaneously. This allows multiple batteries 200 to be tested simultaneously, further improving testing efficiency. If multiple batteries 200 are placed between the base 11 and the pressure member 12, a movable partition structure can be provided between adjacent batteries 200.

[0061] The term "preset direction X is parallel to the horizontal direction" should be understood as meaning that the preset direction X can remain parallel to the horizontal direction; it can also have a certain angle with the horizontal direction due to assembly or processing errors. The range of this angle can be determined based on actual assembly and processing techniques. When the relative movement between the base 11 and the pressure member 12 is horizontal, the battery 200 can be directly inserted into the battery testing device 100 in a vertical position. The battery 200 can be a battery cell 210, a battery module, etc.

[0062] To facilitate understanding of the "vertical state" and "lying state" of the battery 200, the battery cell 210 is taken as an example for explanation. When one side surface of the battery cell 210 along its own thickness direction (i.e., the large surface of the battery cell 210) is perpendicular or approximately perpendicular to the horizontal plane, the corresponding state is the vertical state. Please refer to Figure 2 for details; and when one side surface of the battery cell 210 along its own thickness direction is parallel or approximately parallel to the horizontal plane, the corresponding state is the lying state.

[0063] The testing mechanism 20 refers to a device for testing the battery 200 in a pressurized state. For example, when the battery 200 is subjected to an insulation test, the testing mechanism 20 may be a probe, etc. When the battery 200 is subjected to a thickness measurement, the testing mechanism 20 may be a displacement sensing device, etc.

[0064] This design helps simplify the test structure and testing process, improving battery testing efficiency. Furthermore, the battery testing device 100 of the present application allows the battery 200 to remain in a vertical position during testing, thereby reducing the chance of foreign matter being pressed into the battery 200 due to pressure, lowering the risk of short circuits during testing and improving battery production stability.

[0065] According to some embodiments of the present application, referring to FIG1 , the battery testing device 100 further includes a transfer mechanism 30 . The transfer mechanism 30 is at least used to transfer the battery 200 between the base 11 and the pressurizing member 12 .

[0066] The transfer mechanism 30 is a device capable of transferring the battery 200 so that it can be pressurized. For example, it can be, but is not limited to, a robot arm, a belt conveyor, etc. Of course, after the battery 200 is tested, the transfer mechanism 30 can be used to transfer the battery 200 out from between the base 11 and the pressurizing member 12.

[0067] The number of transfer mechanisms 30 can be one or more. When there are multiple transfer mechanisms 30, all transfer mechanisms 30 can simultaneously transfer multiple batteries 200 between the base 11 and the pressure member 12, allowing multiple batteries 200 to be tested simultaneously. In addition, when there are multiple transfer mechanisms 30, all transfer mechanisms 30 can be arranged in intervals along a predetermined direction X, which facilitates a compact internal structure of the battery testing device 100.

[0068] The transfer mechanism 30 is used to complete the transfer of the battery 200 and realize automatic loading during the pressurization process, which is beneficial to further improve the testing efficiency.

[0069] According to some embodiments of the present application, when the battery 200 is located between the base 11 and the pressure member 12, the transfer mechanism 30 and the battery 200 remain in a clamping state, and the portion of the transfer mechanism 30 that clamps the battery 200 can move along the preset direction X with the battery 200.

[0070] The transfer mechanism 30 and the battery 200 are in a clamping state, which can be understood as the battery 200 and the transfer mechanism 30 are not separated. Under the action of the transfer mechanism 30, the battery 200 can be maintained between the base 11 and the pressure member 12. At this time, the transfer mechanism 30 can play a supporting role. There are many ways to clamp the transfer mechanism 30 and the battery 200. For example, the transfer mechanism 30 can clamp the battery 200 by grabbing, magnetizing, hooking, etc. The transfer mechanism 30 and the battery 200 are in a clamping state, which not only plays a supporting role for the battery 200, but also can immediately transfer the battery 200 out of the pressure mechanism 10 after the battery 200 completes the test, further improving the test efficiency.

[0071] When the battery 200 is first transferred between the base 11 and the pressure member 12, the battery 200 may or may not be in close contact with either the base 11 or the pressure member 12. If the battery 200 is in close contact with either one of them, there is a possibility that pre-stress will form between the battery 200 and the base 11 or the pressure member 12 due to excessive movement of the transfer mechanism 30. This will not only affect the test results, but may also cause deformation and damage to the battery structure due to excessive pre-stress. Therefore, when the battery 200 is first transferred between the base 11 and the pressure member 12, it is not necessary to be in close contact with either one, and a certain gap can be maintained between them.

[0072] If the battery 200 is not in close contact with either of the two components, during the pressurization process, the battery 200 will be driven by the pressurizing member 12 or the base 11 to move along the preset direction X. At this time, the portion of the transfer mechanism 30 of the present application that clamps the battery 200 can also move along with the battery 200, facilitating smooth clamping of the battery 200 between the base 11 and the pressurizing member 12.

[0073] The portion of the transfer mechanism 30 that clamps the battery 200 can move with the battery 200. There are many ways to implement this, such as: the portion of the transfer mechanism 30 that clamps the battery 200 is disconnected from the control of the power source, so that it is in an active state; or, an elastic structure is provided on the portion of the transfer mechanism 30 that clamps the battery 200, such as: the clamping portion is installed on the transfer mechanism 30 by a spring, and when pressurized, the pressure member 12 drives the battery 200 to perform elastic movement, etc.

[0074] The portion of the control transfer mechanism 30 that clamps the battery 200 can move along with the battery 200 , so that the battery 200 can be smoothly clamped between the base 11 and the pressure member 12 .

[0075] According to some embodiments of the present application, the transfer mechanism 30 includes a movable structure 31 and a clamping member 32 disposed on the movable structure 31. The clamping member 32 is used to clamp or release the battery 200, and the movable structure 31 is at least used to drive the clamping member 32 to transfer the clamped battery 200 between the base 11 and the pressure member 12.

[0076] The mobile structure 31 refers to a device that provides power for the transfer of the battery 200. It can be a single electric cylinder, pneumatic cylinder or other device; it can also be a combination of multiple electric cylinders or pneumatic cylinders and other devices to achieve the movement of the battery 200 in multiple directions.

[0077] The clamping member 32 is a device that can be coupled to the battery 200 to allow the battery 200 to be moved between the base 11 and the pressure member 12 under the action of the movable structure 31. In some examples, the clamping member 32 includes a mounting base 321 and two clamping jaws 322 disposed on the mounting base 321. When the clamping member 32 needs to clamp the battery 200, the two clamping jaws 322 move toward each other to grasp the battery 200. When the clamping member 32 needs to release the battery 200, the two clamping jaws 322 move away from each other to release the battery 200. The driving force of the clamping jaws 322 can come from a device such as a pneumatic cylinder or a hydraulic cylinder.

[0078] The battery 200 is fixed by the clamping component 32 , and then the battery 200 and the clamping component 32 are transferred to between the base 11 and the pressurizing member 12 by the movable structure 31 , so that the battery 200 can be pressurized and loaded more smoothly.

[0079] According to some embodiments of the present application, referring to FIG4 , the transfer mechanism 30 further includes a safety component 33. The safety component 33 is configured to trigger the moving structure 31 to drive the clamping component 32 to move away from the obstacle when the clamping component 32 collides with the obstacle in the vertical direction.

[0080] The safety component 33 refers to a component that senses whether the clamping component 32 collides with an obstacle in the vertical direction. For example, when the battery 200 completes the test, the clamping component 32 moves downward in the vertical direction under the action of the mobile structure 31 to release the tested battery 200. If there is an obstacle at the material collection position, the battery 200 can easily collide with the obstacle during the release process and may be damaged. To this end, the present application uses the safety component 33 to sense whether the clamping component 32 collides with an obstacle when moving in the vertical direction. If so, the mobile structure 31 is triggered to move in the direction away from the obstacle. The obstacle can be an untested battery 200.

[0081] The safety component 33 can have a variety of structural designs. For example, it can be a pressure-sensitive plate or a combination of a spring and a photoelectric sensor. When the clamping component 32 and the obstacle expand, the spring is compressed, causing the sensing plate to extend into the sensor, triggering a signal. Of course, the safety component 33 can also be a compliant mechanism with a sensing function. In some examples, the safety component 33 is a compliant mechanism, and the clamping component 32 is mounted on the movable structure 31 via the compliant mechanism.

[0082] It's easy to understand that the relationship between the safety component 33 and the mobile structure 31 is a triggering one, not a controlling one. This means that a controller, such as a PLC (Programmable Logic Controller) or a single-chip microcomputer, is required for communication between the safety component 33 and the mobile structure 31. When the safety component 33 senses a collision, it sends a signal to the controller, which then controls the mobile structure 31 to perform the corresponding action based on the received signal. Of course, the communication circuitry between the safety component 33, the mobile structure 31, and the controller is not the subject of this application's improvement and, therefore, will not be described in detail here. Reference is made to the relevant existing literature.

[0083] The safety component 33 is used to help the clamping component 32 avoid obstacles in time, reducing the risk of the battery 200 being damaged by obstacles during the release process.

[0084] According to some embodiments of the present application, referring to Figures 1 and 4 , the movable structure 31 includes a second driver 311 and a lifter 312 connected to the clamping member 32. The second driver 311 is used to drive the lifter 312 to move along a predetermined direction X, and the lifter 312 is used to drive the clamping member 32 to move along a vertical direction.

[0085] The second actuator 311 is a device that provides power for the movement of the battery 200 along the preset direction X. It can be a pneumatic cylinder, hydraulic cylinder, electric cylinder, or motor. When the battery 200 remains clamped to the clamping member 32 between the base 11 and the pressure member 12, the second actuator 311 can be deactivated, allowing the lifter 312 to be movable. For example, if the second actuator 311 is a pneumatic cylinder, the second actuator 311 is deflating. In this way, both the lifter 312 and the clamping member 32 can move along with the battery 200 along the preset direction X, allowing the battery 200 to be smoothly clamped between the base 11 and the pressure member 12. Of course, in other embodiments, when the battery 200 is between the base 11 and the pressure member 12, the clamping member 32 can also release its grip on the battery 200 to release the battery 200, without the need for the second actuator 311 to be deactivated.

[0086] The lifter 312 refers to a device that can provide power for the battery 200 to move in the vertical direction, and can be, but is not limited to, a cylinder, a hydraulic cylinder, a linear module, etc.

[0087] The battery 200 can be moved in the horizontal direction and the vertical direction respectively by utilizing the cooperation between the lifter 312 and the second driver 311 , so that the battery 200 can be accurately transferred to the required working position.

[0088] According to some embodiments of the present application, referring to FIG3 , the second driver 311 includes a drive shaft 31a that is extendable along a preset direction X, and the drive shaft 31a is connected to the lifter 312. When the second driver 311 is in an inoperative state, the drive shaft 31a is not driven by the second driver 311.

[0089] Second actuator 311 includes a retractable drive shaft 31a, indicating that second actuator 311 is a device with a retractable drive function, such as a pneumatic cylinder or hydraulic cylinder. For example, when the cylinder is in an inoperative state (i.e., deflated), drive shaft 31a is no longer affected by the air pressure within the cylinder and is in a movable state. The term "movable state" should be understood as meaning that drive shaft 31a can freely and passively retract under the influence of external forces. For example, when drive shaft 31a is subjected to external tension, it extends; when drive shaft 31a is subjected to external pressure, it retracts.

[0090] The drive shaft 31a is in a movable state, enabling the battery 200 to follow the movement. For example, when the second driver 311 drives the lifter 312 to move the battery 200 to a desired position, the second driver 311 is controlled to be in an inoperative state, and the drive shaft 31a is in a freely retractable state. At the same time, the base 11 and / or the pressure member 12 move relative to each other under the action of the first driver 13, moving toward the battery 200. Because the drive shaft 31a is in a movable state, the drive shaft 31a, the lifter 312, the clamping member 32, and the battery 200 can move together with the base 11 or the pressure member 12 as a whole. In this way, when the base 11 or the pressure member 12 contacts the battery 200, it can drive the battery 200 to continue to move forward, so that the battery 200 is stably squeezed between the base 11 and the pressure member 12.

[0091] In addition, in order to improve the stability of the following movement between the battery 200 and the base 11 or the pressure member 12, a guide structure such as a slider and a guide rail can be set between the lifter 312 and the frame 70 so that the battery 200 can stably drive the clamping component 32 and the lifter 312 to move together.

[0092] By utilizing the non-working state of the second driver 311 , the battery 200 and the base 11 or the pressure member 12 can follow each other, so that the battery 200 can be stably clamped between the base 11 and the pressure member 12 , which is beneficial to improving the reliability of the test.

[0093] At least a portion of the moving structure 31 is capable of moving with the battery 200 when the battery 200 is pressurized.

[0094] When the pressure member 12 or base 11 moves toward the battery 200 to apply pressure, the pressure member 12 or base 11 may move the battery 200 along with it. If at least a portion of the movable structure 31 does not move with the battery 200, the battery 200 will be prevented from moving. This can cause pre-stress between the battery 200 and the pressure member 12 or base 11, affecting the pressure test on the battery 200.

[0095] Similarly, the movable structure 31 can at least partially move with the battery 200, and there are many ways to implement this, such as: the part of the movable structure 31 that is clamped with the battery 200 is disconnected from the control of the power source, so that it is in a movable state; or, there is an elastic structure between the movable structure 31 and the clamping part 32, etc.

[0096] When the battery 200 is pressurized, the movable structure 31 is at least partially designed to move with the battery 200 , thereby improving the smoothness of the pressurization process of the battery 200 and thus improving the reliability of the test results.

[0097] According to some embodiments of the present application, referring to FIG4 , the testing mechanism 20 includes a test driver 21 and a test probe 22. The test probe 22 is disposed on a side of the clamping member 32 facing the battery 200. The test driver 21 is used to extend the test probe 22 until it contacts the electrode terminals of the battery 200.

[0098] The test probe 22 is a component that contacts the electrode terminals of the battery 200 during testing to achieve electrical connection between the battery 200 and external testing equipment. This means that the test probe 22 can also be understood as a switching structure that allows external testing equipment to conduct electricity with the electrode terminals of the battery 200 through the test probe 22. The electrode terminals of the battery 200 can be understood as, for example, the battery 200 being a battery cell 210, the electrode terminals being the posts on the battery cell 210.

[0099] The test driver 21 refers to a power device that can drive the test probe 22 to extend toward the battery 200 during the test process. It can be, but is not limited to, a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, etc. It is easy to understand that the number of test probes 22 can be one or more. When there is only one test probe 22, other connection structures, such as wires, can be used to connect to the battery 200 to form a circuit loop with the test probe 22. When there are multiple test probes 22, two of the test probes 22 can be placed in contact with the positive and negative terminals of the battery 200. Of course, the extra test probes 22 can also be placed in contact with other batteries 200 to achieve simultaneous testing of multiple batteries 200.

[0100] The quantitative relationship between the test driver 21 and the test probes 22 can be one-to-one or one-to-many, that is, the same test driver 21 can simultaneously drive multiple test probes 22 to extend to electrically contact the battery 200 .

[0101] The test probe 22 is disposed on a side of the clamping component 32 facing the battery 200 so that the test driver 21 can better drive the test probe 22 to contact the electrode terminal to achieve effective testing.

[0102] According to some embodiments of the present application, referring to Figures 1 and 5 , the battery testing device 100 further includes a feeding mechanism 40. The feeding mechanism 40 is located below the pressurizing mechanism 10 and is used to transport the battery 200 to a material collection position for the transfer mechanism 30 to collect the material.

[0103] The conveying mechanism 40 is a device that provides power for conveying the batteries 200. It can be, but is not limited to, a belt conveyor, a roller conveyor, a chain conveyor, or the like. The location of the conveying mechanism 40 below the pressurizing mechanism 10 should be understood to mean that during normal operation of the battery testing apparatus 100, the conveying mechanism 40 is located below the space where the pressurizing mechanism 10 is located. In this case, the transfer mechanism 30 must lift the batteries 200 between the base 11 and the pressurizing member 12.

[0104] When the feeding mechanism 40 is below the pressurizing mechanism 10 , its feeding direction Y can intersect with the preset direction X. For example, the feeding mechanism 40 is arranged in such a way that its feeding direction Y is perpendicular to the preset direction X.

[0105] The feeding mechanism 40 is arranged below the pressurizing mechanism 10 , and the space above the feeding mechanism 40 is used for pressurizing operation, thereby improving the space utilization of the battery testing device 100 .

[0106] 5 and 6 , the battery testing device 100 further includes an adjustment mechanism 50 connected to the feeding mechanism 40. The adjustment mechanism 50 is used to drive the feeding mechanism 40 to move along a preset direction X.

[0107] The adjustment mechanism 50 is a component that drives the feeding mechanism 40 to adjust its position in the preset direction X. It can be a cylinder, an electric cylinder, a hydraulic cylinder, or a combination of a motor and a transmission mechanism, such as a combination of a motor and a screw mechanism.

[0108] During the pressurization process, when the pressurizing member 12 or base 11 drives the battery 200 along the preset direction X, it may collide with the feed mechanism 40 located below, causing the pressurization operation to be unable to proceed normally. To this end, the present application provides an adjustment mechanism 50. The adjustment mechanism 50 can be used to synchronously adjust the position of the feed mechanism 40 along the preset direction X, reducing the probability of the pressurizing member 12 or base 11 colliding with the feed mechanism 40 during the pressurization process. In addition, when the battery 200 is tested, the adjustment mechanism 50 can be used to restore the feed mechanism 40 to its original position.

[0109] The position of the feeding mechanism 40 is adjusted along the preset direction X by using the adjustment mechanism 50 to reduce the probability of collision between the pressurizing member 12 or the base 11 and the feeding mechanism 40 during the pressurization process, thereby ensuring stable testing.

[0110] According to some embodiments of the present application, the adjustment mechanism 50 includes a third driver 51 and a slide rail 52. The slide rail 52 is located below the pressurizing mechanism 10 and extends along a predetermined direction X. The feeding mechanism 40 is mounted on the slide rail 52, and the third driver 51 is used to drive the feeding mechanism 40 to move.

[0111] The third driver 51 refers to a device that provides power for position adjustment of the feeding mechanism 40 in the preset direction X, and may be, but is not limited to, a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, or a motor.

[0112] The slide rail 52 is a structure extending along a predetermined direction X, which provides a guide for the movement of the feed mechanism 40. The feed mechanism 40 can be mounted on the slide rail 52 via a connecting plate 53. For example, the connecting plate 53 is slidably mounted on the slide rail 52, and the feed mechanism 40 is fixed to the connecting plate 53.

[0113] The third driver 51 drives the feeding mechanism 40 to move smoothly on the slide rail 52 , so that the position adjustment of the feeding mechanism 40 in the preset direction X is more accurate and convenient.

[0114] According to some embodiments of the present application, referring to FIG5 , the feeding mechanism 40 includes a feeding body 41 and guide members 42 disposed on both sides of the feeding body 41 along a direction intersecting the feeding direction Y. Each guide member 42 is provided with a guide wheel 421 for rolling engagement with the battery 200 .

[0115] The feeder body 41 is the main structure of the feeder mechanism 40, which transports the batteries 200. The feeder body 41 can be a belt conveyor, a roller conveyor, or the like. For example, the feeder body 41 includes a motor and multiple rollers arranged in parallel and spaced apart, with the rollers being driven by belts or gears.

[0116] The guide members 42 are components that protect the two opposite sides of the conveying body 41 to reduce the risk of the battery 200 tipping over during transportation. The guide members 42 can be designed as a plate-like structure that protrudes from the conveying surface of the conveying body 41 to form a guardrail or other structure.

[0117] The guide wheel 421 refers to a component that realizes rolling friction between the battery 200 and the guide member 42. When the battery 200 is transported on the feed body 41, the battery 200 and the guide wheel 421 are in rolling contact. This not only provides lateral protection for the battery 200, but also reduces the friction between the guide member 42 and the battery 200.

[0118] To ensure stable and orderly transport of batteries 200 along the feed body 41, a first sensor 44 and a second sensor 45 can be spaced apart along the feed direction Y on the feed body 41. The first sensor 44 and the second sensor 45 are located on either side of the retrieving position, with the first sensor 44 closer to the feed end of the feed body 41 than the second sensor 45. The first sensor 44 and the second sensor 45 are each used to sense the presence of batteries 200 at their respective locations. Thus, the first sensor 44 is used to detect the presence of feed upstream of the retrieving position. This reduces the risk of multiple batteries 200 entering together, which could cause the transfer mechanism 30 to collide with other batteries 200 during retrieving. Simultaneously, the second sensor 45 is used to detect the presence of discharge downstream of the retrieving position, reducing overshoot during transport and the risk of the transfer mechanism 30 damaging the batteries 200. Furthermore, a sensor can be installed at the retrieving position to detect the presence of batteries 200 at the retrieving position.

[0119] Guide members 42 with guide wheels 421 are respectively provided on both sides of the feeding body 41 , which not only provide lateral protection for the battery 200 but also reduce friction between the guide members 42 and the battery 200 .

[0120] According to some embodiments of the present application, referring to FIG5 , the feeding mechanism 40 further includes a distance adjusting component 43. The distance adjusting component 43 is used to adjust the distance between the guide members 42 on both sides.

[0121] The distance adjusting component 43 refers to a component that can adjust the distance between the guide members 42 on both sides. It can be a structure such as a screw rod, a bolt, a push column, etc.; it can also be a device such as a cylinder, an electric cylinder, etc. to achieve automatic distance adjustment.

[0122] The guide member 42 is mounted on the feeder body 41 in a sliding manner. For example, a guide rail structure may be provided on the feeder body 41, and the guide member 42 may be mounted on the guide rail structure; or a chute structure may be provided on the feeder body 41, and at least a portion of the guide member 42 may be slidably inserted into the chute structure. In addition, to facilitate distance adjustment, at least one distance adjustment component 43 may be provided at each opposite end of the guide member 42 to ensure balanced force during distance adjustment.

[0123] The distance between the guide members 42 on both sides is adjusted by using the distance adjustment component 43 so that the feeding body 41 can be adapted to batteries 200 of different sizes, thereby improving the applicable range of the device.

[0124] According to some embodiments of the present application, referring to FIG5 and FIG7 , the battery testing device 100 further includes a feeding mechanism 60 . The feeding mechanism 60 is used to transport the battery 200 to the conveying mechanism 40 .

[0125] The feeding mechanism 60 is a component that provides the batteries 200 to the feeding mechanism 40 and can be a belt conveyor, a roller conveyor, or the like. Of course, the feeding mechanism 60 and the feeding mechanism 40 can be designed using the same structure. That is, the features of the feeding mechanism 40 described above can all be applied to the feeding mechanism 60. For example, the feeding mechanism 60 can also include a distance adjustment component 43, a first sensor 44, and a second sensor 45. For the specific structural arrangement, please refer to the structural design of the feeding mechanism 40 and will not be repeated here.

[0126] In addition, the vertical state of the battery 200 can also refer to the state of the battery 200 on the feeding mechanism 60 in FIG. 7 .

[0127] The feeding mechanism 60 is used to provide the batteries 200 to the conveying mechanism 40 , so that the battery testing device 100 can operate stably and continuously.

[0128] According to some embodiments of the present application, referring to FIG3 , the pressurizing mechanism 10 further includes a separator 14 . The separator 14 is movably disposed between the base 11 and the pressurizing member 12 , and is used to separate the batteries 200 arranged along a predetermined direction X.

[0129] The separator 14 is a structure that separates two adjacent batteries 200. When multiple batteries 200 are placed between the base 11 and the pressurizing element 12, a separator 14 is placed between each pair of batteries 200 to prevent direct contact between the batteries 200 during the pressurization process. During the pressurization process, the pressurizing element 12 applies pressure to one of the batteries 200; the pressure on this battery 200 is then transmitted to the remaining batteries 200 through the separator 14, ultimately acting on the base 11.

[0130] When switching between different tests, taking insulation testing and thickness measurement as an example, the separator 14, the base 11 and the pressure member 12 can be directly replaced from marble to an insulation test plate to achieve rapid switching. This allows the structure of the battery testing device 100 to be universal in different test items, which is beneficial to reducing testing costs. In the insulation test, please refer to Figure 4. The test mechanism 20 may include a test driver 21 and a test probe 22. The test driver 21 may be a cylinder. When a preset pressure is applied to the battery 200, the test driver 21 drives the test probe 22 to extend to the electrode terminal on the battery 200. At this time, the external insulation tester is connected to the electrode terminal through the test probe 22. The test probe 22 can be set on the clamping component 32, for example: the test probe 22 is set on the mounting seat 321 of the clamping component 32, etc. In thickness measurement, please refer to Figure 8. The testing mechanism 20 may include a displacement sensor 23 and a test reference 24. The displacement sensor 23 can be set on the pressure member 12 and / or the base 11, and the test reference 24 is set on the separator 14. The displacement sensor 23 is used to obtain the distance between the pressure member 12 or the base 11 and the test reference 24 to obtain the thickness of the battery 200, etc.

[0131] When the battery 200 completes the test, in order to enable the separator 14 to return to its original position, a connecting member 15 may be connected between the separator 14 and the pressure member 12. When the pressure member 12 moves in the direction toward the separator 14, the connecting member 15 will not drive the separator 14 to move; when the pressure member 12 moves in the direction away from the separator 14, the interference portion will interfere with the side of the separator 14 facing away from the pressure member 12, driving the separator 14 back to its original position.

[0132] The battery testing device 100 also includes a frame 70, on which the testing mechanism 20 and the pressurizing mechanism 10 are mounted. The frame 70 may include a base 73, support members 72, and a crossbeam 71. Two support members 72 are disposed on the base 73 along a predetermined direction X, and the crossbeam 71 is connected to the two support members 72. To ensure smooth movement of the separator 14 and the pressurizing member 12, a guide rail structure may be provided on the crossbeam 71, and the separator 14 and the pressurizing member 12 are respectively disposed on the guide rail structure on the crossbeam 71.

[0133] The separator 14 is used to separate two adjacent batteries 200 so that the batteries 200 will not directly contact each other and affect their respective test results when being tested synchronously.

[0134] According to some embodiments of the present application, referring to FIG1 , the pressurizing mechanism 10 further includes a connector 15 . The connector 15 is connected between the pressurizing member 12 and the separator 14 , and is configured to allow the pressurizing member 12 to unidirectionally drive the separator 14 to move away from the base 11 .

[0135] The connector 15 is a structure connected between the pressure member 12 and the separator 14, enabling the pressure member 12 to move with the separator 14. For example, when the pressure member 12 moves away from the base 11, the pressure member 12 can drive the separator 14 backward through the connector 15, allowing the separator 14 to return to its original position along with the pressure member 12.

[0136] It should be noted that "one-way drive" means that when the pressure member 12 moves in a direction toward the base 11, the pressure member 12 cannot drive the partition 14 to move together through the connecting member 15; when the pressure member 12 moves in a direction away from the base 11, the partition 14 can be driven to move together through the connecting member 15. There are many ways to implement one-way drive, for example: the connecting member 15 can be designed as a flexible or elastic structure, fixedly connected between the pressure member 12 and the partition 14; or the connecting member 15 can be designed as a retractable structure, so that when the pressure member 12 and the partition 14 move closer to each other, the connecting member 15 contracts; when the two move away from each other, the connecting member 15 extends to the extreme inextensible state and pulls the partition 14 to move together, etc.

[0137] In this way, the connector 15 is provided between the pressurizing member 12 and the separator 14 , so that the separator 14 can be effectively reset without affecting the pressurization of the battery 200 between the pressurizing member 12 and the separator 14 , thus preparing for the next test.

[0138] According to some embodiments of the present application, please refer to Figure 1, one end of the connecting member 15 is fixed to the pressure member 12, and the other end movably passes through the partition 14, and the part of the connecting member 15 that passes through the outside of the partition 14 is provided with a resistance portion 15a, and the resistance portion 15a is used to resist the side of the partition 14 facing away from the pressure member 12.

[0139] The connector 15 having one end movably passing through the separator 14 means that the connector 15 can move along its own axis on the separator 14. For example, a through hole is provided in the separator 14, and one end of the connector 15 is inserted into the through hole. In this way, during the pressurization process, when the pressurizing member 12 and the separator 14 move together to compress the battery 200, the connector 15 will not cause structural interference between the pressurizing member 12 and the separator 14.

[0140] The interfering portion 15a is a structure that can interfer with one side of the separator 14. Thus, when the pressure member 12 and the separator 14 move away from each other, the connecting member 15 will not completely detach from the separator 14. At the same time, when the interfering portion 15a interfers with the side of the separator 14 facing away from the pressure member 12, the pressure member 12 can move the separator 14 together through the connecting member 15 to return to its initial position.

[0141] The interference portion 15a on the connector 15 has various structural designs. For example, the interference portion 15a can be designed as a convex structure, or as a ring structure arranged around the axis of the connector 15.

[0142] In this way, by utilizing the structural cooperation between the connecting member 15 and the partition 14 , the pressurizing member 12 can stably drive the partition 14 to move in one direction, thereby facilitating the effective resetting operation of the partition 14 .

[0143] According to some embodiments of the present application, please refer to FIG9 , which provides a battery testing method, including the following steps:

[0144] S100, controlling at least one of the pressurizing member 12 and the base 11 to move in a horizontal direction, so that the battery 200 is subjected to a preset pressure between the pressurizing member 12 and the base 11;

[0145] S200 , controlling the testing mechanism 20 to test the battery 200 .

[0146] In step S100 , the preset pressure can be determined based on different test items and is not specifically limited here. Simultaneously, the movement of at least one of the pressurizing member 12 and the base 11 is controlled. This can be achieved by using a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, or other devices. Alternatively, a combination of a motor and a transmission mechanism can be used.

[0147] It should be noted that, in some other embodiments, the battery testing method provided in this application may adopt the battery testing device 100 in any of the above embodiments.

[0148] During the test, the battery 200 is placed between the base 11 and the pressure member 12. Next, at least one of the pressure member 12 and the base 11 is driven to move along a preset direction X, causing relative movement between the two, so that the pressure member 12 and the base 11 can apply pressure to the battery 200 to meet the test pressure requirements. Finally, the pressurized battery 200 is tested using the testing mechanism 20. Because the preset direction X is roughly parallel to the horizontal direction, the relative movement between the pressure member 12 and the base 11 is or is roughly horizontal. That is, the pressure mechanism 10 of the present application uses a horizontal pressure method. This eliminates the need to rotate the battery 200 from a vertical position to a horizontal position before testing, reducing the investment in additional equipment such as flipping and handling.

[0149] According to some embodiments of the present application, referring to FIG. 10 , before the step of controlling at least one of the pressure member 12 and the base 11 to move horizontally in S100 , the method further includes:

[0150] S300, lifting the clamping member 32 holding the battery 200 by the lifter 312, so that the battery 200 is out of the material removal position;

[0151] S400 , driving the lifter 312 to move along the preset direction X, and positioning the battery 200 between the base 11 and the pressurizing member 12 through the lifter 312 .

[0152] In step S400, the lifter 312 moves along the preset direction X, which can be achieved by the second driver 311. That is, the lifter 312 and the second driver 311 respectively realize the movement of the battery 200 in the horizontal direction and the vertical direction, so that the battery 200 can be accurately transferred between the base 11 and the pressure member 12 to complete the testing operation.

[0153] In this way, the battery 200 is moved vertically by the lifting of the lifter 312 ; the lifter 312 is then controlled to move along the preset direction X to drive the clamped battery 200 to move in the preset direction X, so that the battery 200 can be accurately positioned at the position to be tested.

[0154] According to some embodiments of the present application, referring to FIG. 11 , S100 , the step of controlling at least one of the pressure member 12 and the base 11 to move horizontally, includes:

[0155] S110, controlling the lifter 312 to be in a movable state in the horizontal direction;

[0156] S120 , controlling at least one of the pressure member 12 and the base 11 to move, so that the pressure member 12 or the base 11 drives the lifter 312 to move in a horizontal direction.

[0157] In step S110 , the lifter 312 is movable in the horizontal direction, which means that the lifter 312 allows the battery 200 to move horizontally with the pressure member 12 or the base 11 , so that the battery 200 can be stably clamped between the pressure member 12 and the base 11 .

[0158] The horizontally movable state of the lifter 312 can be achieved in various ways, for example, by controlling the second driver 311 to stop working, which can be understood as the second driver 311 not having any driving output to the lifter 312, such as when a cylinder stops working and is in a deflated state. In this case, the lifter 312 is not affected by the second driver 311 and is in a movable state. In some examples, when the battery 200 is moved to the desired position, the cylinder is in a deflated state, where the second driver 311 is a cylinder.

[0159] In addition, it should be noted that step S110 and step S120 may be performed simultaneously; or step S110 may be performed first and then step S120.

[0160] The control lifter 312 can move along with the test piece 200 in the preset direction X, so that the test piece 200 can be smoothly clamped between the base 11 and the pressure member 12 .

[0161] According to some embodiments of the present application, S200, the step of controlling the testing mechanism 20 to test the battery 200, includes:

[0162] The test driver 21 is controlled to work, driving the test probe 22 to extend in a vertical direction until it contacts the electrode terminal of the battery 200 . The test mechanism 20 includes the test driver 21 and the test probe 22 .

[0163] The test probe 22 extends in the vertical direction under the action of the test driver 21, which means that the test method allows the battery 200 to be pressurized laterally. This allows the battery 200 to remain in a vertical state for testing, reducing the chance of foreign matter being pressed into the battery 200 due to pressure, reducing the risk of short circuits during the test, and helping to improve the production stability of the battery 200.

[0164] In this way, the test driver 21 is used to drive the test probe 22 to extend in the vertical direction, so that the test probe 22 completes the test of the battery 200 in the vertical direction.

[0165] According to some embodiments of the present application, S200, the step of controlling the testing mechanism 20 to test the battery 200, further includes:

[0166] The displacement sensor 23 is controlled to work to obtain the distance between two sides of the battery 200 along the horizontal direction.

[0167] There are multiple ways to obtain the battery 200 in the horizontal direction. For example, when there is a battery 200 between the base 11 and the pressure member 12 for testing, the structures clamping the battery 200 on both sides are the base 11 and the pressure member 12. When two or more batteries 200 are tested simultaneously between the base 11 and the pressure member 12, each battery 200 is stacked in sequence in the horizontal direction and squeezed between the base 11 and the pressure member 12. To prevent two adjacent batteries 200 from directly contacting each other, a separator 14 can be provided between the two batteries 200. In this case, the structures clamping the battery 200 on both sides can be the base 11 and the separator 14; or, the pressure member 12 and the separator 14; or, two separators 14.

[0168] To facilitate understanding of the thickness measurement process, two batteries 200 are used as an example. Displacement sensors 23 are provided on the base 11 and the pressure member 12, respectively. Test datums 24 are provided on opposite sides of the separator 14 along a predetermined direction X. When the pressure member 12 compresses the two batteries 200, stacking and pressing the two batteries 200 and the separator 14 against the base 11, the displacement sensors 23 on either side extend and contact their corresponding test datums 24, reading the thickness of the two batteries 200.

[0169] The displacement sensor 23 is used to conveniently obtain the thickness parameters of the battery 200, thereby improving the convenience of testing.

[0170] According to some embodiments of the present application, the present application provides a battery production system, including the battery testing device in any of the above solutions.

[0171] According to some embodiments of the present application, please refer to Figures 1 to 10. The present application provides a battery 200 testing device, including a pressurizing mechanism 10 and a testing mechanism 20. During the test, the battery 200 is moved to the feeding mechanism 40 through the feeding mechanism 60; the stop member 46 is extended, the battery 200 is moved to the material picking position through the feeding mechanism 40, and the stop member 46 is retracted; the clamping component 32 is moved downward to the material picking position through the lifter 312, and after the clamping claw 322 of the clamping component 32 clamps the battery 200, the lifter 312 moves upward over the guide member 42 to the test station; the second driver 311 is deflated, and the first driver 13 works, driving the pressure member 12, the separator 14, the battery 200 and the clamping component 32 to move for pressurization, and the synchronous feeding mechanism 40 floats to the side of the base 11 through the slide rail 52, waiting for the pressure of the pressure sensor 16 to reach the preset pressure value; if thickness measurement is performed, the displacement sensor is extended and the value of the displacement sensor is read, which is the thickness test value; after the test is completed, the displacement sensor is retracted. If an insulation test is required, the test driver 21 drives the test probe 22 to extend, and the insulation tester reads the value; after the test is completed, the test driver 21 retracts; finally, the first driver 13 retracts to the origin position, while driving the pressure member 12 back to the origin position, and simultaneously moves the partition 14 to the initial position through the connecting member 15.

[0172] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery testing device, comprising: A pressurizing mechanism (10) comprises a first driver (13) and a base (11) and a pressurizing member (12) arranged at a relative interval, wherein a battery (200) is placed between the base (11) and the pressurizing member (12), and the first driver (13) is used to drive the pressurizing member (12) and the base (11) to move relative to each other in a preset direction (X) so as to pressurize the battery (200); A testing mechanism (20) for testing the pressurized battery (200); Wherein, the preset direction (X) is parallel to the horizontal direction.

2. The battery testing device according to claim 1, wherein: The battery testing device further comprises a transfer mechanism (30), wherein the transfer mechanism (30) is at least used to transfer the battery (200) between the base (11) and the pressurizing member (12).

3. The battery testing device according to claim 2, wherein: The transfer mechanism (30) comprises a moving structure (31) and a clamping component (32) arranged on the moving structure (31), wherein the clamping component (32) is used to clamp or release the battery (200), and the moving structure (31) is used to drive the clamping component (32) to transfer the battery (200) to between the base (11) and the pressure member (12).

4. The battery testing device according to claim 3, wherein: The transfer mechanism (30) further comprises a safety component (33), wherein the safety component (33) is configured to trigger the moving structure (31) to drive the clamping component (32) to move in a direction away from the obstacle when the clamping component (32) collides with an obstacle in a vertical direction.

5. The battery testing device according to claim 3 or 4, wherein: The moving structure (31) comprises a second driver (311) and a lifter (312) connected to the clamping component (32), wherein the second driver (311) is used to drive the lifter (312) to move along the preset direction (X), and the lifter (312) is used to drive the clamping component (32) to move along the vertical direction.

6. The battery testing device according to claim 5, wherein: The second driver (311) has a driving shaft (31a) that is telescopic along the preset direction (X), the driving shaft (31a) is connected to the lifter (312), and when the second driver (311) is in a non-working state, the driving shaft (31a) is not driven by the second driver (311).

7. The battery testing device according to any one of claims 3 to 6, wherein: The testing mechanism (20) comprises a testing driver (21) and a testing probe (22); the testing probe (22) is arranged on a side of the clamping component (32) facing the battery (200); and the testing driver (21) is used to drive the testing probe (22) to extend to contact an electrode terminal of the battery (200).

8. The battery testing device according to any one of claims 3 to 7, wherein: At least part of the moving structure (31) is capable of moving along with the battery (200) when the battery (200) is pressurized.

9. The battery testing device according to any one of claims 2 to 8, wherein: The battery testing device further comprises a material conveying mechanism (40), the material conveying mechanism (40) being located below the pressurizing mechanism (10), and the material conveying mechanism (40) being used to convey the battery (200) to a material taking position for the transfer mechanism (30) to take the material.

10. The battery testing device according to claim 9, wherein: The battery testing device further comprises an adjusting mechanism (50) connected to the feeding mechanism (40), wherein the adjusting mechanism (50) is used to drive the feeding mechanism (40) to move along the preset direction (X).

11. The battery testing device according to claim 10, wherein: The adjusting mechanism (50) comprises a third driver (51) and a slide rail (52), wherein the slide rail (52) is located below the pressurizing mechanism (10) and extends along the preset direction (X), the feeding mechanism (40) is mounted on the slide rail (52), and the third driver (51) is used to drive the feeding mechanism (40) to move.

12. The battery testing device according to any one of claims 9 to 11, wherein: The feeding mechanism (40) comprises a feeding body (41) and guide members (42) respectively arranged on both sides of the feeding body (41) along a direction intersecting with a feeding direction (Y), and each of the guide members (42) is provided with a guide wheel (421) for rolling cooperation with the battery (200).

13. The battery testing device according to claim 12, wherein: The feeding mechanism (40) further comprises a distance adjusting component (43), wherein the distance adjusting component (43) is used to adjust the distance between the guide members (42) on both sides.

14. The battery testing device according to any one of claims 9 to 13, wherein: The battery testing device further comprises a feeding mechanism (60), wherein the feeding mechanism (60) is used to transport the battery (200) to the feeding mechanism (40).

15. The battery testing device according to any one of claims 1 to 14, wherein: The pressurizing mechanism (10) further comprises a separator (14), wherein the separator (14) is movably disposed between the base (11) and the pressurizing member (12), and the separator (14) is used to be disposed between batteries (200) arranged along the preset direction (X).

16. The battery testing device according to claim 15, wherein: The pressurizing mechanism (10) further comprises a connecting member (15), wherein the connecting member (15) is connected between the pressurizing member (12) and the partition member (14) and is used to allow the pressurizing member (12) to drive the partition member (14) to move unidirectionally along a side away from the base (11).

17. The battery testing device according to claim 16, wherein: One end of the connecting member (15) is fixed to the pressurizing member (12), and the other end movably passes through the partition (14), and the portion of the connecting member (15) that passes through the outside of the partition (14) is provided with a resisting portion (15a), and the resisting portion (15a) is used to resist a side surface of the partition (14) that is away from the pressurizing member (12).

18. A battery testing method comprising the following steps: Controlling at least one of the pressurizing member (12) and the base (11) to move in a horizontal direction so that the battery (200) is subjected to a preset pressure between the pressurizing member (12) and the base (11); The control testing mechanism (20) tests the battery (200).

19. The battery testing method according to claim 18, wherein: Before the step of controlling at least one of the pressure member (12) and the base (11) to move in the horizontal direction, the method further comprises: The clamping component (32) clamping the battery (200) is lifted by a lifter (312) so that the battery (200) is separated from the material removal position; The lifter (312) is driven to move along a preset direction (X), and the battery (200) is positioned between the base (11) and the pressure member (12) through the lifter (312).

20. The battery testing method according to claim 19, wherein: The step of controlling at least one of the pressure member (12) and the base (11) to move in a horizontal direction comprises: Controlling the lifter (312) to be movable in the horizontal direction; The movement of at least one of the pressure member (12) and the base (11) is controlled so that the pressure member (12) or the base (11) drives the lifter (312) to move in a horizontal direction.

21. The battery testing method according to any one of claims 18 to 20, wherein: The step of controlling the testing mechanism (20) to test the battery (200) comprises: The test driver (21) is controlled to work, and the test probe (22) is driven to extend in a vertical direction until it contacts the electrode terminal of the battery (200), wherein the test mechanism (20) comprises the test driver (21) and the test probe (22).

22. The battery testing method according to any one of claims 18 to 21, wherein: The step of controlling the testing mechanism (20) to test the battery (200) further includes: The displacement sensor (23) is controlled to work to obtain the distance between the two sides of the battery (200) in the horizontal direction.

23. A battery production system, comprising the battery testing device according to any one of claims 1-17.

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