Electronic apparatus

1 . An electronic apparatus comprising:

a main body having an upper surface at which a projection lens is disposed and a side surface at which a nut is disposed;

a support including a base plate and a support member having first end connected to the base plate and a second end facing the side surface of the main body; and

a hinge module configured to rotatably connect the main body to the support member,

wherein the hinge module comprises:

a first hinge member having a first end fixed to the side surface of the main body and a second end at which a first teethed part is formed comprising first teeth disposed in a circumferential direction,

a second hinge member having a first end fixed to the support member and a second end at which a second teethed part comprising second teeth engaged with the first teeth of the first teethed part is formed, and

a screw passing through the support member and the second hinge member to be engaged with the nut.

2 . The electronic apparatus as claimed in claim 1 , wherein the first teethed part protrudes in an axial direction from a first surface of the first hinge member that faces the support member, and

the second teethed part protrudes in the axial direction from a first surface of the second hinge member that faces the main body.

3 . The electronic apparatus as claimed in claim 2 , wherein the hinge module comprises an elastic member disposed between the main body and the first hinge member and configured to press the first hinge member.

4 . The electronic apparatus as claimed in claim 2 , wherein the first hinge member comprises a third teethed part protruding from an inner surface thereof in a radial direction while crossing the first teethed part, and

the second hinge member includes a fourth teethed part engaged with the third teethed part.

5 . The electronic apparatus as claimed in claim 4 , wherein the fourth teethed part comprises a plurality of interlocking protrusions protruding in the axial direction from the first surface of the second hinge member that faces the main body and arranged with gaps therebetween in the circumferential direction.

6 . The electronic apparatus as claimed in claim 1 , wherein the nut has a cylindrical shape configured to allow inserting of the screw into an inside of the nut, and

the first hinge member surrounds an outer surface of the nut.

7 . The electronic apparatus as claimed in claim 1 , wherein the first hinge member comprises a plurality of key protrusions protruding from an outer surface thereof in a radial direction and disposed so as to gradually become further away from or closer to the main body in the circumferential direction, and

the second hinge member includes a stick protruding in an axial direction from the first surface facing the main body, and configured to generate a sound by collision with the plurality of key protrusions when the first hinge member is rotated.

8 . The electronic apparatus as claimed in claim 7 , wherein when the main body has a first position in which the main body is parallel to the support member, the stick member is in contact with a first key protrusion among the plurality of key protrusions, and

the plurality of key protrusions become gradually further away from or closer to the main body as the key protrusion is further away from the first key protrusion.

9 . The electronic apparatus as claimed in claim 1 , wherein the screw includes:

a head disposed outside the support member,

a fastener having first end connected to the head and an outer surface on which a thread is formed, and

a pair of guide parts facing each other and extending from a second end of the fastener to be further away from a central axis of the screw.

10 . The electronic apparatus as claimed in claim 9 , wherein the nut includes:

a first hole disposed in a first surface thereof facing the support member, and

a second hole disposed in a second surface and configured for the guide part to pas through.

11 . The electronic apparatus as claimed in claim 10 , wherein the guide part comprises a fastening protrusion protruding from an outer surface thereof and configured for contacting the second surface of the nut.

12 . The electronic apparatus as claimed in claim 1 , wherein the first teethed part protrudes in a radial direction from an inner surface of the first hinge member, and

the second teethed part protrudes in the radial direction from an outer surface of the second hinge member.

13 . The electronic apparatus as claimed in claim 1 , wherein the first hinge member includes a guide protrusion protruding from an inner surface thereof in a radial direction,

the second hinge member comprises a groove disposed in one area of an outer surface thereof and configured for engaging the guide protrusion, and

the guide protrusion is selectively received into the groove as the first hinge member is rotated.

14 . The electronic apparatus as claimed in claim 13 , wherein a plurality of grooves is spaced apart from each other by a gap of 90 degrees in the circumferential direction.

15 . The electronic apparatus as claimed in claim 13 , wherein at least one area of the guide protrusion or at least one area of the second hinge member comprises a flexible material.