A led filament light bulb with a cylindrical heat radiation ring

Abstract

The invention discloses an LED lamp filament bulb with cylindrical thermal radiation rings. The LED lamp filament bulb comprises a lamp holder assembly with a drive assembly. The lamp holder assembly is connected to a bulb shell. A wire support is arranged in the bulb shell. The wire support is provided with a plurality of electric connecting wires connected with the drive assembly. A plurality of thermal radiation rings closely attached to the inner wall of the bulb shell are arranged in the bulb shell. An LED lamp filament assembly connected with the corresponding electric connecting wires is arranged between every two adjacent thermal radiation rings. The LED lamp filament assemblies are fixed to an annular lamp filament assembly fixing support connected with the thermal radiation rings. Cylindrical thermal radiation rings with reflector faces are arranged on the inner sides of the LED lamp filament assemblies. According to the LED lamp filament bulb, the light emitting rate of an LED can be increased, and the heat dissipation efficiency can be improved. According to the LED lamp filament bulb, the limitation that an existing LED lighting lamp needs a radiator can be avoided, a large-power LED lamp filament lamp light source can be achieved, a light source of an existing large-power lighting product can be directly replaced, and lamps do not need to be replaced.

Description

technical field [0001] The invention relates to an LED filament light bulb with a cylindrical heat radiation ring, belonging to the technical field of LED lighting. Background technique [0002] As a new generation of lighting technology, LED semiconductor lighting has high photoelectric conversion rate, easy control of light source direction, easy control of lighting period and mode, high color rendering of light source, and high power factor under reasonable design, which cannot be compared with other existing lighting technologies. The five major energy-saving advantages are favored by global investors and strongly supported by governments of various countries. Although LED lighting has received attention, there are still many problems in the promotion process. First, LED lighting is mostly an integrated structure and lacks replaceable standard light sources. Realize dimming operation, and at the same time do not have waterproof and other protective functions, the applic...

AI Technical Summary

Problems solved by technology

Although LED lighting has received attention, there are still many problems in the promotion process. First, LED lighting is mostly an integrated structure and lacks replaceable standard light sources. Realize dimming operation, and at the same time do not have waterproof and other protective functions, the application range is narrow; moreover, light-emitting semiconductors emit light from all sides under electrical triggering, but in practical applications, LED chips are mostly packaged in an opaque On the substrate, half of the light emitted by the semiconductor is blocked and converted into heat, resulting in low luminous efficiency

[0003] In recent years, LED filament lamps using transparent strip-shaped substrates have appeared in the market, which conforms to the basic principle of semiconductor lighting with four-sided light, but its application power is still relatively low, generally not exceeding 10W; and it does not have waterproof function, and its application range is relatively narrow. These defects have greatly restricted the popularization and use of LED lighting

[0004] The best solution for the existing LED filament production is to use strip-shaped sapphire as the substrate to bond and bind the LED chips on it. reduce more

Images