Air bag control unit

1. An airbag control unit comprising:

a housing having an internal storage space, a terminal pin disposed at the internal storage space, and an opening exposing the internal storage space;

a PCB disposed at the internal storage space of the housing and having a terminal pin hole engaged with the terminal pin of the housing; and

a cover configured to cover the opening and having an edge joined along an edge of the opening of the housing,

wherein the housing includes a coupling protrusion disposed at a corner of the internal storage space of the housing extending toward the opening of the housing,

wherein the PCB has a through-hole disposed corresponding to the coupling protrusion at a corner of the PCB, the coupling protrusion of the housing extending through the through-hole of the PCB, and

wherein the cover includes a boss disposed corresponding to the coupling protrusion at a corner of the cover, the coupling protrusion having an end portion coupled to the boss of the cover.

2. The airbag control unit of claim 1 , wherein:

the housing and the cover comprise a plastic material, and

the coupling protrusion and the boss are laser-welded to each other.

3. The airbag control unit according to claim 1 , wherein:

the housing and the cover comprise a plastic material, and

the edge of the opening and the edge of the cover are laser-welded to each other.

4. An airbag control unit comprising

a housing having an internal storage space and an opening exposing the internal storage space;

a PCB coupled to the housing at a corner portion of the opening and having an electrical connection structure in which a terminal pin is inserted into a terminal pin hole for receiving power; and

a cover on the opening with an edge thereof joined along an edge of the opening,

wherein first and second connectors are located respectively on opposite sides of the housing, the PCB is located inside the housing, and first and second terminal pins, respectively, are coupled to opposite sides of the PCB facing the first and second connectors, and

wherein the first and second terminal pins are symmetrically coupled respectively to the opposite sides of the PCB based on a virtual center line formed along a center of the PCB.

5. The airbag control unit of claim 4 , wherein the first and second terminal pins are disposed respectively along opposite inside edges of the housing.

6. The airbag control unit of claim 4 , wherein the first and second terminal pins are disposed symmetrically within, and along opposite edges of, the housing.

7. The airbag control unit according to claim 4 , further comprising a sensor unit disposed between the first and second terminal pins.

8. An airbag control unit comprising:

a housing having an internal storage space and an opening exposing the internal storage space

a PCB coupled to the housing at a corner portion of the opening and having an electrical connection structure in which a terminal pin is inserted into a terminal pin hole for receiving power; and

a cover on the opening with an edge thereof joined along an edge of the opening,

wherein one end of the terminal pin penetrates, and is coupled in a direction perpendicular to, a plane of the PCB; a middle portion of the terminal pin is bent toward a fastener of the connector, and the other end of the terminal pin is located inside the connector.

9. The airbag control unit of claim 8 , wherein the terminal pin is configured in a shape of ‘L’ and the other end of one terminal pin and the other end of the other terminal pin are provided in mutually opposite directions.

10. The airbag control unit of claim 8 , wherein the terminal pins are arranged in a plurality of rows and penetrate a pin alignment bracket in a plate shape; the pin alignment bracket is fixed to an inner surface of the housing, and the terminal pin is within and coupled to the terminal pin hole formed on the PCB such that the PCB is coupled to the housing.

11. An airbag control unit comprising:

a housing having an internal storage space and an opening exposing the internal storage space

a PCB coupled to the housing at a corner portion of the opening and having an electrical connection structure in which a terminal pin is inserted into a terminal pin hole for receiving power; and

a cover on the opening with an edge thereof joined along an edge of the opening,

wherein a cylindrical capacitor is inside the housing, a hook is formed on a bottom surface of the housing to be surrounding an outer circumferential surface of the capacitor, and the capacitor is fastened by the hook, and

wherein a lead pin is connected to be energized from one end of the capacitor; and a holder pin is connected to be energized between the lead pin and the PCB.

12. The airbag control unit of claim 11 , wherein a lower portion of the holder pin is divided into a V shape to form a pin leg, and an end of the pin leg is coupled to the bottom surface of the housing; a lead pin groove is formed between the pin legs so that the lead pin is inserted so as to be energized; a pin head is formed protruding on an upper portion of the holder pin; and a holder pin hole is formed on the PCB corresponding to the pin head so that the pin head is connected to be energized.