Battery module
The invention provides a battery module including an output breaker that ensures safe and prompt installation of batteries in a system. The battery module includes one or more batteries and a case housing the batteries and having output terminals, each output terminal being connected to a positive or negative electrode of the housed battery, the battery module further including means for turning on and off the connection between the output terminal and the positive or negative electrode of the battery. The means for turning on and off the connection may include a contact subjected to making and breaking operations and a screw for making and breaking the contact, the screw having an insulator at an interface with the contact.
1. A battery module including one or more batteries and a case housing the battery or the batteries and having output terminals mounted on the case, each output terminal being connected to a positive or negative electrode of the battery or one of the batteries, the battery module further including a movable contact within the case for making and breaking the connection between one of the output terminals and the positive or negative electrode of the battery or one of the batteries to which the movable contact is connected, and a manually operable operating element for moving the movable contact to make and break the connection, the manually operable operating element being mounted on the case and at least partially extending outside of the case so as to be accessible for manual operation by a user, wherein the operating element is a screw for making and breaking the connection by movement with respect to the contact, the screw having an insulator at an interface with the contact.
2. A battery module according to claim 1 , wherein the screw is always mounted on the case so that at least one portion is disposed outside of the case.
3. A battery module according to claim 2 , wherein the screw includes the insulator as another portion always disposed inside of the case and engageable with the movable contact to enable movement for making and breaking the connection.