Assembly structure for vehicle camera module using solder-jet

A vehicle camera module comprising:

• a lens having a lens barrel and a plurality of lens elements assembled to the lens barrel;
• a circuit board including an image sensor;
• a front housing having a front side to which the lens is assembled and a rear side to which the circuit board is assembled;
• and
• a rear housing coupled to the rear side of the front housing to seal the lens and the circuit board, wherein:
• the front housing includes one or more posts protruding rearward and a pin protruding distally from each of the posts and having a smaller cross-sectional area than the post,
• the circuit board includes a plated through-hole configured to at least partially receive each of the pins,
• the front housing and the circuit board are engaged in a pre-assembled state with a first gap between an end face of each post and the circuit board, and a second gap between each pin and each plated through-hole, and the lens and the image sensor undergo an optical alignment in the pre-assembled state,
• the first gap is formed between an end face of each post and the circuit board spaced apart from each other in an axial direction of each post,
• the second gap is formed to be spaced apart in a direction perpendicular to the axial direction between each pin and each plated through-hole, and
• the first gap and the second gap are soldered and solidified by using a laser solder-jet bonding process,
• the front housing includes one or more bosses within which the one or more posts protrude rearward, wherein the one or more posts comprise one or more plunger pins that are fitted into the respective one or more bosses of the front housing, and wherein the one or more plunger pins are not integrally formed on the front housing.