Double-layer energy-saving bulb

Abstract

The invention discloses a double-layer energy-saving bulb comprising conductive fibers, filaments and a lampshade. The conductive fibers and the filaments are connected; the lampshade consists of an outer glass bulb and an inner glass bulb; a group of sealed baffles are arranged between the outer glass bulb and the inner glass bulb, and a space formed by the outer glass bulb and the inner glass bulb is divided into a group of sealed units by the group of the sealed baffles; a current path through hole is arranged on each sealed baffle; the current path through holes on two adjacent sealed baffles are respectively positioned at the upper end and the lower end of each single sealed baffle; one group of current path through holes arranged in an up and down alternative mode form a current path; and the two groups of filaments are arranged in two adjacent sealed units and positioned at two ends of the current path, a sealed glass sheet is arranged at top of the outer glass bulb and the inner glass bulb, the conductive fibers are connected to the filaments through the sealed glass sheet. In the invention, a light tube is cancelled, and the lampshade is directly connected with the circuit board through an insulator, therefore, the invention has the advantages of low cost, high luminous efficiency, long service life, easy assembly of a whole lamp and compact appearance.

Description

technical field [0001] The invention relates to an energy-saving light bulb, in particular to a double-layer energy-saving light bulb in which the existing energy-saving light tube plus a ball cover is changed into a double-layer light bulb. Background technique [0002] Existing energy-saving lamps all adopt the form of an energy-saving lamp tube and a spherical cover. The working principle of the existing bulb-type energy-saving lamp is: after the lamp tube and the ballast are assembled, the outer surface is covered with a bulb. figure 1 It is a schematic diagram of the structure of an existing ordinary energy-saving lamp tube, figure 2 It is the whole lamp assembly drawing of ordinary energy-saving cover lamp. figure 1 Among them, 11 is a lamp tube stem, 12 is a solid mercury, 13 is a mesh (for mercury absorption), 14 is a filament, 15 is a glass tube, and 16 is a guide wire. [0003] The current bulb-type products are placed in the lampshade, and the temperature insid...

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Problems solved by technology

[0006] 2. Because the temperature inside the lampshade is very high, in order to reduce the light decay, improve the color rendering index, and prevent the color temperature from drifting under high temperature, the proportion of red powder will be increased in the powder mixing process, which will cause 15% loss of light effect

[0007] 3. Due to the limited space in the lampshade, only small-diameter energy-saving lamps are used for the lamp tube, which will reduce the phosphor content of the lamp tube, limit the length of the filament and the content of phosphor powder, and reduce the luminous efficiency and lifespan. will be affected

[0008] The disadvantages of existing ordinary energy-saving lamps are: high cost, low luminous efficiency, short life, and difficulty in assembling the whole lamp

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