Waterproof LED bar lamp bulb

A waterproof light-emitting diode (LED) bar lamp bulb, comprising a lamp base (1) and a shell (2) connected with the lamp base (1), and further comprising a stem assembly (3), wherein the stem assembly (3) is connected to an opening portion of the shell (2);

• the stem assembly (3) comprises a rubber seat (31), and a first metal wire (32), an LED bar (33) and a second metal wire (34) which are electrically connected with each other in sequence;
• the rubber seat (31) is matched with the opening portion of the shell (2);
• a filling recess (4) is formed by the rubber seat (31) and the opening portion of the shell (2);
• a sealant layer (41) for sealing and waterproofing is arranged at the filling recess (4);
• the LED bar (33) is located at a top of the rubber seat (31) and extends into the shell (2);
• the rubber seat (31) is also provided with at least two accommodating holes (35) that metal wires pass through;
• and one end of the first metal wire (32) and one end of the second metal wire (34) are both electrically connected to the LED bar (33) through the accommodating holes (35), and the other ends are electrically connected to the lamp base (1);
• wherein the rubber seat (31) comprises a cylindrical portion (311) connected to the opening portion of the shell (2);
• the accommodating holes (35) are formed in the cylindrical portion (311);
• an upper end of the cylindrical portion (311) is provided with a supporting portion (312);
• and the LED bar (33) is arranged above the supporting portion (312);
• the cylindrical portion (311) is provided with an assembling slope (318) or the opening portion of the shell (2) is provided with an assembling slope (318);
• the assembling slope allows the cylindrical portion (311) to form a truncated cone shape.