Dual-resistor airtight and waterproof bulb
Some embodiments of the disclosure relate to the technical field of lamps and disclose dual-resistor airtight and waterproof bulbs. In some examples, the stem structure incudes a waterproof rubber base and a vertical light source plate. The waterproof rubber base includes an upper insertion portion and a lower assembly portion which are formed integrally. The lower assembly portion is arranged at an opening of the lamp shade and fits the opening of the lamp shade to form a filling recess. The disclosure may improve the stem structure of existing LED lamps and enables a light strip to be inserted into the waterproof rubber base more easily to implement connection and electric conduction, such that the production process of the stem of lamps may be simplified, and the stem may be formed without repeated fixed-position welding, thus may effectively improve the forming efficiency of the lamps.
1 . A dual-resistor airtight and waterproof bulb, comprising a threaded lamp base ( 1 ), a lamp shade ( 2 ) and a stem structure ( 3 ), the threaded lamp base ( 1 ) being connected to the lamp shade ( 2 ), wherein:
the stem structure ( 3 ) comprises a waterproof rubber base ( 4 ) and a vertical light source plate ( 5 );
the waterproof rubber base ( 4 ) comprises an upper insertion portion ( 41 ) and a lower assembly portion ( 42 ) which are formed integrally, the lower assembly portion ( 42 ) is arranged at an opening of the lamp shade ( 2 ) and fits the opening of the lamp shade ( 2 ) to form a filling recess ( 6 ), and the filling recess ( 6 ) is filled with a sealing rubber layer ( 61 );
the upper insertion portion ( 41 ) is provided with a slot ( 411 ) enabling the vertical light source plate ( 5 ) to be assembled therein;
at least two electric wires ( 412 ) are arranged on an inner side of the slot ( 411 );
one of the electric wires ( 412 ) is electrically connected to a positive pole of the threaded lamp base ( 1 ), and another one of the electric wires ( 412 ) is electrically connected to a negative pole of the threaded lamp base ( 1 );
heat-dissipation resistors ( 413 ) are electrically connected to middle portions of the two electric wires ( 412 );
the vertical light source plate ( 5 ) comprises a base plate ( 51 ) and light-emitting beads ( 52 ) arranged on two opposite surfaces of the base plate ( 51 ); and
the base plate ( 51 ) is provided with two conductive contacts ( 511 ), and the base plate ( 51 ) has an end inserted into the slot ( 411 ) and connecting the conductive contacts ( 511 ) and the electric wires ( 412 ) as well as an end extending into the lamp shade ( 2 ).
2 . The dual-resistor airtight and waterproof bulb according to claim 1 , wherein:
the lower assembly portion ( 42 ) is provided with receiving grooves ( 421 ) for positioning and receiving the heat-dissipation resistors ( 413 ); and
upper openings ( 422 ) of the receiving grooves ( 421 ) are connected to the slot ( 411 ).
3 . The dual-resistor airtight and waterproof bulb according to claim 2 , wherein:
the slot ( 411 ) comprises a first side wall ( 415 ) and a second side wall ( 416 ); and
the upper openings ( 422 ) are close to the first side wall ( 415 ) or the second side wall ( 416 ).
4 . The dual-resistor airtight and waterproof bulb according to claim 3 , wherein:
the first side wall ( 415 ) is provided with a first protrusion ( 417 ) or the second side wall ( 416 ) is provided with a second protrusion ( 419 ); and
the first protrusion ( 417 ) or the second protrusion ( 419 ) abuts against the base plate ( 51 ) to keep the conductive contacts ( 511 ) in close contact with the electric wires ( 412 ).
5 . The dual-resistor airtight and waterproof bulb according to claim 1 , wherein the two electric wires ( 412 ) extend out of the slot ( 411 ) and are formed with bent portions ( 414 ).
6 . The dual-resistor airtight and waterproof bulb according to claim 1 , wherein a positioning block ( 418 ) used for auxiliary positioning of the waterproof rubber base ( 4 ) is arranged at a top end of the upper insertion portion ( 41 ).
7 . The dual-resistor airtight and waterproof bulb according to claim 1 , wherein the base plate ( 51 ) is made of PVC.
8 . The dual-resistor airtight and waterproof bulb according to claim 1 , wherein:
the base plate ( 51 ) is T-shaped and comprises an inserted portion ( 513 ) and a light source portion ( 514 );
the inserted portion ( 513 ) is inserted into the slot ( 411 ) and is wider than the light source portion ( 514 ); and
the light-emitting beads ( 52 ) are arranged on the light source portion ( 514 ).
9 . The dual-resistor airtight and waterproof bulb according to claim 8 , wherein the conductive contacts ( 511 ) are elongated and arranged on a surface of the inserted portion ( 513 ).
10 . The dual-resistor airtight and waterproof bulb according to claim 8 , wherein linear chamfers ( 7 ) are arranged on two sides of an end of the inserted portion ( 513 ).