Method of manufacturing photo interrupter including a positioning member with at least one positioning pin integrally provided with a connecting part, and photo interrupter manufactured thereby

A method of manufacturing a photo interrupter, comprising:

• a first collecting board forming process including a step of mounting a plurality of light-emitting elements on a first surface of a first board material that includes a plurality of slits, a circuit pattern provided on the first surface of the first board material, and an electrode pattern provided on a second surface of the first board material and electrically connected to the circuit pattern;
• a second collecting board forming process including a step of mounting a plurality of light-receiving elements on a first surface of a second board material that includes a plurality of slits, a circuit pattern provided on the first surface of the second board material, and an electrode pattern provided on a second surface of the second board material and electrically connected to the circuit pattern;
• a combined frame forming process of forming a combined frame in which two frames are combined, each frame having a U-character-like shape and including a first frame part, a second frame part disposed to face the first frame part, a connecting part connecting the first and second frame part, and at least one positioning member provided on a lower surface of the connecting part;
• a frame assembly forming process include a plurality of combined frames are integrated in a state where the first frame part and the second frame part of each of the combined frames are abutted;
• a first integrating process of integrating the first collecting board and the frame assembly by positioning the first frame parts of the plurality of combined frames on the first collecting board at the plurality of light-emitting elements, respectively, aligning the connecting parts having the positioning pins of the combined frames with the slits of the first collecting board, and adhering fixedly the first surface of the first collecting board and the plurality of combined frames;
• a second integrating process of integrating the second collecting board and the frame assembly to form a photo interrupter assembly by positioning the plurality of light receiving elements of the second collecting board on the second frame parts of the plurality of combined frames adhered and fixed on the first collecting board, aligning the lower surfaces of the connecting parts having the positioning members of the combined frames with the slits of the second collecting board, and adhering fixedly the first surface of the second collecting board and the plurality of combined frames;
• and
• a separating process of separating the completed photo interrupter assembly by cutting the photo interrupter assembly by dicing and dividing it into a plurality of individual photo interrupters.

A photo interrupter manufactured by a method, comprising:

• a first collecting board forming process including a step of mounting a plurality of light-emitting elements on a first surface of a first board material that includes a plurality of slits, a circuit pattern provided on the first surface of the first board material, and an electrode pattern provided on a second surface of the first board material and electrically connected to the circuit pattern;
• a second collecting board forming process including a step of mounting a plurality of light-receiving elements on a first surface of a second board material including a plurality of slits, a circuit pattern provided on the first surface of the second board material, and an electrode pattern provided on a second surface of the second board material and electrically connected to the circuit pattern;
• a frame assembly forming process include a plurality of combined frames each having a U-character-like shape and including a first frame part, a second frame part disposed to face the first frame part, a connecting part connecting the first and second frame part, and a positioning member provided on a lower surface of the connecting part, the plurality of combined frames being integrated in a state where the first frame part and the second frame part of each of the combined frames are abutted;
• a first integrating process of integrating the first collecting board and the frame assembly by positioning the first frame parts of the plurality of combined frames on the first collecting board at the plurality of light-emitting elements, respectively, aligning the connecting parts having the positioning pins of the combined frames with the slits of the first collecting board, and adhering fixedly the first surface of the first collecting board and the plurality of combined frames;
• a second integrating process of integrating the second collecting board and the frame assembly to form a photo interrupter assembly by positioning the plurality of light-receiving elements of the second collecting board on the second frame parts of the plurality of combined frames adhered and fixed on the first collecting board, aligning the lower surfaces of the connecting parts having the positioning members of the combined frames with the slits of the second collecting board, and adhering fixedly the first surface of the second collecting board and the plurality of combined frames;
• and
• a separating process of separating the completed photo interrupter assembly by cutting the photo interrupter assembly by dicing and dividing it into a plurality of individual photo interrupter.

A photo interrupter comprising:

• a frame including a first frame part and a second frame part that are disposed at an interval to face each other, a connecting part integrally connecting the first frame part and the second frame part, and a positioning member,
• the positioning member including at least one positioning pin integrally provided with a lower surface of the connecting part, the at least one positioning pin being configured to be fitted in at least one engaging hole provided in an external motherboard;
• a first board provided at the first frame part;
• at least one light-emitting element mounted on the first board;
• a second board provided at the second frame part;
• at least one light-receiving element mounted on the second board to face the at least one light-emitting element.