Lighting device

A lighting device comprising:

• a light distribution cover configured to emit light;
• a heat dissipating frame coupled to a lower periphery of the light distribution cover and having a receiving recess in a flat upper surface and an inner surface thereof;
• a light source module arranged on the upper surface of the heat dissipating frame;
• an inner case received in a receiving recess of the heat dissipating frame;
• a control module connected to the inside of the inner case and electrically connected to the light source module;
• and
• a socket part connected to a lower portion of the heat dissipating frame to supply power to the control module,
• the light source module comprises:
• a first substrate;
• at least one light source attached on the first substrate;
• a light source control element attached on the first substrate;
• an antenna printed on the first substrate;
• a first ground pattern formed on the first substrate for ground of the light source and the light source control element;
• and
• a second ground pattern insulated from the first ground pattern and formed on the first substrate for ground of the antenna,
• the control module comprises:
• a second substrate;
• a power supply element attached on the second substrate and connected to the socket part;
• a communication element attached on the second substrate;
• a third ground pattern formed on the second substrate for ground of the power supply element;
• and
• a fourth ground pattern insulated from the third ground pattern and formed on the second substrate for ground of the communication element,
• the first ground pattern is connected to the third ground pattern, and
• the second ground pattern is connected to the fourth ground pattern,
• wherein the control module comprises a plurality of connecting terminals formed on a side surface of the second substrate and projecting in a lengthwise direction,
• wherein the connecting terminals comprise:
• a control signal terminal connected to the communication element and the light source control element;
• an antenna connecting terminal connected to the antenna and the communication element;
• a power supply terminal connected to the power supply element and the light source;
• a first ground connecting terminal connecting the second ground pattern to the fourth ground pattern;
• and
• a second ground connecting terminal connecting the first ground pattern to the third ground pattern,
• wherein the first ground connecting terminal is interposed between the control signal terminal and the power supply terminal,
• wherein the second ground connecting terminal is interposed between the power supply terminal and the antenna connecting terminal, and
• wherein the control signal terminal and the antenna connecting terminal are arranged in an outermost region, respectively.