Waterproof light bulb
The invention involves the technical field of light bulbs, disclosing a waterproof light bulb comprising a lamp head and a bulb connected, a soft glue lamp base and a resilient waterproof stein structure, which connects to the lamp head and extends into the bulb. The stein structure comprises a first metal lead, a LED strip and a second metal lead in sequential electrical connection. The first and second metal lead are integrated with a soft glue light base, and are electrically connected with the lamp head. The soft glue light base is sealed tightly fitted with inside of the bulb mouth; the invention's benefits include: 1. The bulb features a soft glue lamp base with waterproof sealing and enhanced waterproof properties; 2. The improved stein structure sets detents on the first and second metal lead that are encapsulated with the LED strip, with simplified process and lower production costs.
1. A waterproof light bulb, comprising a lamp head ( 1 ) and a bulb ( 2 ) connected to the lamp head ( 1 ), characterized in that further comprising a soft glue lamp base ( 3 ) and a stem structure ( 4 ) with resilient waterproof action, the stem structure ( 4 ) is connected to the lamp head ( 1 ) and extends into the bulb ( 2 ), the stem structure ( 4 ) comprises a first metal lead ( 41 ), an LED strip ( 42 ) and a second metal lead ( 43 ) in sequential electrical connection, the first and second metal leads ( 41 , 43 ) each being integrally formed with the soft glue lamp base ( 3 ) and respectively electrically connected with the lamp head ( 1 ), the soft glue lamp base ( 3 ) being sealingly tightly fitted with the inside of the mouth of the bulb ( 2 );
the LED strip ( 42 ) is externally coated with an encapsulating layer ( 44 ), the encapsulating layer ( 44 ) being an epoxy resin, a polyurethane modified epoxy resin or a polyurethane resin;
the first metal lead ( 41 ) and second metal lead ( 43 ) are each provided with a detent ( 45 ) for connecting the LED strip ( 42 ), the encapsulating layer ( 44 ) integrally encapsulating the LED strip ( 42 ) and the detent ( 45 ).
2. The waterproof light bulb according to claim 1 , characterized in that the lower end width of the first metal lead ( 41 ) and second metal lead ( 43 ) is greater than the upper end width.
3. The waterproof light bulb according to claim 1 , characterized in that the stem structure ( 4 ) further comprises a first resistor ( 46 ) for preventing damage to the LED strip ( 42 ).
4. The waterproof light bulb according to claim 3 , characterized in that the first resistor ( 46 ) is arranged at the first metal lead ( 41 ) or the second metal lead ( 43 ), and the first resistor ( 46 ) is located between the LED strip ( 42 ) and the soft glue lamp base ( 3 ).
5. The waterproof light bulb according to claim 3 , characterized in that the first resistor ( 46 ) is integrated with the LED strip ( 42 ).
6. The waterproof light bulb according to claim 5 , characterized in that the stem structure ( 4 ) further comprises a second resistor ( 47 ), and the first resistor ( 46 ) and the second resistor ( 47 ) are respectively disposed two opposite ends of the LED strip ( 42 ) along a longitudinal direction.
7. The waterproof light bulb according to claim 6 , characterized in that the first resistor ( 46 ) and the second resistor ( 47 ) and the LED strip ( 42 ) are externally coated with the encapsulating layer ( 44 ).
8. The waterproof light bulb according to claim 1 , characterized in that the stem structure ( 4 ) further comprises a second resistor ( 47 ).
9. The waterproof light bulb according to claim 8 , characterized in that the second resistor ( 47 ) and the LED strip ( 42 ) are coaxially arranged.
10. The waterproof light bulb according to claim 8 , characterized in that first metal lead ( 41 ) comprises a vertical section, the vertical section of the first metal lead ( 41 ) is parallel with the LED strip ( 42 ).
11. The waterproof light bulb according to claim 1 , characterized in that the first and second metal leads ( 41 , 43 ) are circular or flat shaped.
12. The waterproof light bulb according to claim 1 , characterized in that the soft glue lamp base ( 3 ) bottom is provided with a flange ( 31 ) abutting the mouth of the bulb ( 2 ).