Foldable electronic device including hinge locking structure

An electronic device comprising:

• a first housing including a first surface;
• a second housing including a second surface;
• a third housing including a third surface;
• a first hinge rotatably connecting the first housing and a first side surface of the second housing facing a first side surface of the first housing;
• a second hinge rotatably connecting the first housing and a side surface of the third housing facing a second side surface of the first housing opposite to the first side surface of the first housing;
• a flexible display disposed on the first surface, the second surface and the third surface;
• a first sensor disposed in the second housing and configured to obtain first data related to a posture of the second housing;
• a second sensor disposed in the third housing and configured to obtain second data related to a posture of the third housing;
• a first magnet disposed in the second housing;
• a hinge lock which, in an abnormal state of the electronic device in which a portion of the first surface is adjacent to the second surface, faces the first magnet and which includes a pin insertable into a groove formed in at least one shaft in the second hinge,
• wherein the first hinge structure and the second hinge structure are configured to provide an unfolded state in which the first surface, the second surface, and the third surface face the same direction or a folded state in which at least one of the first surface, the second surface, or the third surface face different directions, and
• in the unfolded state, when the flexible display is viewed from above, an overlapped area of the flexible display and the first hinge structure is wider than an overlapped area of the flexible display and the second hinge structure.