Abstract: The application relates to the technical field of energy storage devices, and in particular, to a device, a battery pack, a battery module, and a connection assembly. The connection assembly includes: a connecting sheet; an insulating film which is connected to a plurality of the connecting sheets, where the insulating film is provided with a weakened portion. In the present application, the weakened portion has weaker strength. When force is applied, deformation and/or breakage occur/occurs at the weakened portion, thereby reducing the risk of tearing at other positions of the insulating film, improving the flexibility of the connection assembly, and reducing the risk of exposure of the connecting sheet due to the tearing of the insulating film, such that the risk of short circuit between the connecting sheet and other conductive component is reduced, and the safety performance of the battery module is improved.

Abstract: The present application provides a temperature control assembly and a battery pack. The temperature control assembly includes a first side plate, a second side plate, and an elastic thermal pad. The elastic thermal pad has a main body that includes: a first plate section close to the first side plate in a longitudinal direction and extending in a vertical direction; a second plate section close to the second side plate in the longitudinal direction and extending in the vertical direction; and a connection section extending obliquely from the first side plate toward the second side plate and connected to the first and second plate sections. Due to elastic and structural characteristics of the elastic thermal pad, the main body of the elastic thermal pad is deformed under the action of extrusion to absorb the expansion forces of the batteries in time, thus greatly improving the service life of the batteries.

Abstract: The present disclosure provides a frame and a battery module. The frame is composed of a peripheral wall, the peripheral wall encloses to form a receiving cavity closed in a circumferential direction and opened at two ends in an axial direction, the peripheral wall is provided with at least one adhesive injection hole passing through the peripheral wall. The battery module comprises a plurality of secondary batteries arranged side by side, the frame and an adhesive. The secondary batteries are received in the receiving cavity. The adhesive comprises: a first part which adheres every two adjacent secondary batteries; a second part which adheres two secondary batteries positioned at outermost sides of the plurality of secondary batteries in an arrangement direction with the peripheral wall; a third part which adheres a lower side of the first part and a lower side of the second part with the peripheral wall.

Abstract: The present disclosure provides an isolation board assembly and a battery module, the isolation board assembly comprises an isolation board and electrical connection pieces. The isolation board comprises: a plurality of supporting portions; a plurality of first limiting portions, each first limiting portion and the corresponding supporting portion form an interval. Each electrical connection piece comprises a first end portion and a second end portion. The first end portion is received in the interval, clamped and fixed by the first limiting portion and the supporting portion, and the second end portion extends out of the supporting portion. The assembly manner is simple and fast, which improves the assembling efficiency. Because the first end portion is supported on the supporting portion, the second end portion extends out of the supporting portion, it makes the dimension of the isolation board is small, thereby decreasing the volume and weight of the isolation board.

Abstract: The present disclosure provides a frame and a battery module. The frame is composed of a peripheral wall, the peripheral wall encloses to form a receiving cavity closed in a circumferential direction and opened at two ends in an axial direction, the peripheral wall is provided with at least one adhesive injection hole passing through the peripheral wall. The battery module comprises a plurality of secondary batteries arranged side by side, the frame and an adhesive. The secondary batteries are received in the receiving cavity. The adhesive comprises: a first part which adheres every two adjacent secondary batteries; a second part which adheres two secondary batteries positioned at outermost sides of the plurality of secondary batteries in an arrangement direction with the peripheral wall; a third part which adheres a lower side of the first part and a lower side of the second part with the peripheral wall.

Abstract: A rotatable circular platform is used for automatically testing power transformers. The rotatable circular platform is provided with a plurality of carrier tracks equally spaced around the periphery of the rotatable circular platform; each one of the carrier tracks is adapted to carry a power transformer to be tested and is provided with a corresponding connecting post having a pair of connecting contact points. Around the outer periphery is a plurality of stationary posts, each one of which has a pair of stationary contact points to allow a sliding engagement with the connecting contact points of the connecting posts. Each pair of the stationary contacts is electrically connected to a test instrument to test the performances of power transformers, while each pair of the connecting contact points is provided with a pair of clamps to clamp onto the test terminals of a power transformer loaded on a corresponding carrier track.