Abstract: A hold-down mechanism includes a bearing member, at least two hold-down structures arranged on the bearing member, and a locking structure. The hold-down structures are configured to be movable on the bearing member. During testing, each of the hold-down structures is pressed against a unit under test. If the unit under test has an irregular or uneven surface, a distance D between each hold-down face and the bearing member is changed by moving each of the hold-down structures, such that each hold-down face can abut on the surface of the unit under test. Once in abutting, each of the hold-down structures is locked by the locking structure, such that a curved surface formed by joining the various hold-down faces well fits the surface of the unit under test, achieving effective profiling and ensuring that the entire surface of the unit under test is effectively held down.

Abstract: The present disclosure discloses a testing system, a battery production line, and a testing method. The testing system includes a control device and a test device. The test device includes at least two probe card adjustment assemblies. The control device is connected to the test device and configured to adjust the probe card adjustment assemblies according to an adjustment strategy, and drive the adjusted probe card adjustment assemblies to test the battery module currently to be tested. The adjustment strategy is determined based on current module information corresponding to the battery module and historical module information. The historical module information is the module information of a battery module tested last time. The technical solution provided by the embodiments of the present disclosure can quickly adjust the probe card adjustment assemblies to adapt to different battery modules.

Abstract: An inspection circuit includes a plurality of inspection devices and a plurality of pathway switching circuits. Input ends of the pathway switching circuits are respectively connected to different test lines. The test lines are connected to a test terminal corresponding to a battery cell under test. Output ends of the pathway switching circuits are respectively connected to the plurality of inspection devices. The pathway switching circuit is configured to connect, according to an inspection signal, an inspection device corresponding to the inspection signal and a test terminal corresponding to the battery cell under test. The inspection device is configured to obtain an inspection result of the battery cell under test.

Abstract: A test system comprises a test circuit board, a test device, a lower computer, and an upper computer. The test circuit board includes a test circuit, the test circuit comprising multiple main lines arranged side by side, one end of each of the main lines being used to connect with a positive electrode or a negative electrode of each battery cell of the battery module, and the other end of each of the main lines being connected with a first branch and a second branch. The lower computer controls a first branch connected to one of the main lines to be electrically conductive to a positive electrode of the test device and a second branch connected to another one of the main lines to be electrically conductive to a negative electrode of the test device. The upper computer controls the lower computer and reads parameter information for the test device.

Abstract: A battery test apparatus includes a lifting mechanism and a probe mechanism. The lifting mechanism is configured to drive the probe mechanism to move. The probe mechanism includes an adapting rack and a plurality of first connecting members disposed on the adapting rack. The adapting rack is detachably connected to the lifting mechanism.

Abstract: The present application relates to a detection mechanism and a battery production line. The detection mechanism includes a conveying unit, configured to convey the device to be detected; a first detection unit, configured to detect the temperature of the device to be detected; and a trigger unit, configured to detect the distance between the first detection unit and the device to be detected. When the distance between the first detection unit and the device to be detected is less than a preset distance value, the trigger unit controls the conveying unit to stop conveying. The detection mechanism and the battery production line in the embodiments of the present application can ameliorate the problem of poor universality.

Abstract: A graphitization furnace with a rapid active cooling system is disclosed, including a furnace body and an active cooling system. The active cooling system is provided with at least one medium loop unit and a control unit for controlling a flow velocity of a medium in the medium loop unit, each medium loop unit includes a plurality of heat removal pipes pre-embedded in a furnace cavity of the furnace body, and each heat removal pipe is provided with a medium flow channel communicated with the medium loop unit. The graphitization furnace with a rapid active cooling system can realize rapid active cooling, short turnover time and high energy utilization efficiency of the graphitization furnace, and has wide applicability, which is not only suitable for construction of a new graphitization furnace, but also suitable for transformation of the existing Acheson graphitization furnace.