Terminal connection structure

1. A terminal connection structure in which a stud bolt is inserted into a bolt insertion hole of a top plate portion of a terminal, and a nut is screwed and fastened to the stud bolt on the top plate for connecting the terminal to the stud bolt, the structure comprising:

a terminal accommodation section formed by a tubular protection wall extended upwardly from the top plate of the terminal and around the stud bolt, having an opening and ribs formed on of a circumference thereof, the terminal accommodation section allowing the top plate portion of the terminal fixed to an end of a wire to be inserted in the tubular protection wall on the stud bolt,

wherein the opening is formed so as to fit on a belt portion extending from a part of an outer peripheral edge of the top plate portion of the terminal toward a fixing portion of the terminal,

wherein the ribs are protruded on right and left sides on an interior of the protection wall with respect to the opening, the ribs coming into contact with right and left side edges of the belt portion of the terminal and preventing the terminal from being detached upward when the terminal is temporarily lifted,

wherein the ribs are arranged at different heights in a top-bottom direction of the stud bolt, and

wherein the ribs respectively have guide slope surfaces in upper surfaces thereof, the guide slope surfaces sloping downward from a base side of the ribs toward a tip side of the ribs to facilitate the insertion of the terminal when the terminal to be inserted into the terminal accommodation section comes into contact with the ribs.

2. The terminal connection structure according to claim 1 , wherein the ribs respectively have

latch surfaces in lower surfaces thereof, the latch surfaces being normal to the protection wall, or having a slope sloping up from the tip side of the ribs to the base side of the ribs.

3. The terminal connection structure according to claim 1 , wherein

the fixing portion of the wire is bent downward in an L shape with respect to the belt portion, and

the wire extends downward from the fixing portion of the wire.

4. The terminal connection structure according to claim 3 , further comprising: wherein

a plurality of the stud bolts and a plurality of the tubular protection walls are provided side by side in an upper surface of a component,

a plurality of wire accommodation grooves formed on a side of the component,

each of the wire accommodation grooves accommodates the fixing portion of the wire and an upper end part of the wire, and communicates with the opening of the tubular protection walls.

5. The terminal connection structure according to claim 4 , wherein

the top plate portion of the terminal is formed in a disk shape and includes a protrusion at a part of a circumference thereof,

the tubular protection walls are cylindrical protection walls,

each of the tubular protection walls has a recess fitting on each of the protrusions at a part of the circumference thereof, and

the protrusions of the terminals are arranged at different circumferential positions from each other, and

the recesses of the cylindrical protection walls are arranged at different circumferential positions corresponding to the protrusions.

6. The terminal connection structure according to claim 4 , wherein

the component is a fusible link unit directly mounted on a battery.