CASE BODY ASSEMBLY, BATTERY, ELECTRICAL DEVICE, AND METHOD AND APPARATUS FOR MANUFACTURING CASE BODY ASSEMBLY

The present application relates to the technical field of batteries, in particular to a case body assembly, a battery, an electrical device, and a method and apparatus for manufacturing the case body assembly. The case body assembly comprises: an end plate, wherein at least two channels are provided in the end plate; and a partition plate, wherein the partition plate is used for connection to the end plate and separates an internal space of the case body assembly. The partition plate comprises a body and at least two insertion portions located at one end of the body, wherein one end of each insertion portion is connected to an end portion of the body, each insertion portion comprises a connection region and a bending region, and the connection region is connected to the body by means of the bending region; and each channel of the at least two channels is inserted into and matches the at least one insertion portion, such that the connection region of each insertion portion abuts against one inner wall of the matched channel, so as to connect the partition plate to the end plate. The present application uses the inner walls of the channels to position the insertion portions, and the plurality of insertion portions are mutually constrained, such that the partition plate is stably positioned at the current position, thereby ensuring that the partition plate is accurately positioned, and achieving the aims of improving the safety and prolonging the service life of the battery.