Device for inspecting waterproofness

A device configured to inspect an object including a main body having a plurality of openings and sub-bodies disposed in the plurality of openings, the device comprising:

• a lower jig and an upper jig that are configured to support the object and to define a sealed space with the object disposed between the lower jig and the upper jig;
• a plurality of inspection modules configured to be positioned at the plurality of openings of the object and to contact an outer surface of the object;
• and
• an air compressor configured to supply air to the plurality of inspection modules,
• wherein each of the plurality of inspection modules comprises:
• a pressure sensor configured to detect air pressure between one of the plurality of inspection module and the outer surface of the object,
• a jig that is configured to contact the outer surface of the object and defines a chamber configured to communicate air, the jig being configured to cover an area between the main body of the object and one of the sub-bodies,
• a valve that defines a passage in communication with the chamber, and
• an air supply line that connects the valve to the air compressor and is configured to guide air to the passage,
• wherein the pressure sensor is connected to the valve and configured to detect the air pressure in the passage of the valve,
• wherein a width of the jig is larger than an opening defined in a main body of the object, and has a surface configured to face the outer surface of the object and to cover an area between the main body of the object and a sub-body of the object disposed in the opening,
• wherein the chamber comprises:
• a communication passage that is in communication with the passage of the valve, and
• a groove that is recessed from the surface of the jig toward the communication passage, that is connected to the communication passage, and that is configured to face the object, and
• wherein a width of the groove is larger than widths of the communication passage and the opening of the object to thereby enable leakage detection at an interface between the main body of the object and the sub-body of the object, the groove being configured to be spaced apart from the sub-body of the object.