The specific connection method must be clearly stated in the patent description and title, otherwise the description will be insufficiently disclosed.
Like the two methods you mentioned, one is two parts connected through a certain connection method, then the specific connection method must be limited, not just the connection;
< p>If it is a whole, there is no need to write a connection. Just describe what kind of structural whole they are.If you want to protect both, you can write "1 and 2 are two parts like..., connected by..., where it can also be a whole part including 1 and 2. structure".