Permanent flashlight

Abstract

The invention relates to a permanent flashlight, which comprises a shell, a switch, a luminous body, and a condensing body and a condensing cover which are arranged at the head of the shell, wherein a main body in which a permanent magnet can be arranged and can move back and forth is arranged in the shell; a coil winds the main body, an output end of the coil is connected with the luminous body, namely a light-emitting diode (LED), through an electronic circuit, and elastic devices consisting of screws, springs and rubber heads are arranged at the front and rear ends of the permanent magnet; the switch is a magnetic switch and comprises a small magnet which is arranged on an outer wall of the shell and can move back and forth and a pair of upper and lower corresponding movable and static elastic reeds which are arranged in the shell and are positioned in a reed pipe in front of the small magnet; and the movable and static reeds are sealed in a glass tube, and contact pins at two ends of each of the movable and static reeds are connected in series between a capacitor and the LED. The permanent flashlight has the advantages that the energy is saved, and environmental pollution is avoided; and meanwhile, by the magnetic switch, contact friction is avoided; and therefore, the switch has long service life, the shell is fully sealed, and the permanent flashlight is high in waterproof performance, simple in structure and low in cost.

Description

technical field [0001] The present invention relates to a permanent flashlight. Background technique [0002] Existing flashlights generally use incandescent tungsten bulbs, which have low efficiency, high energy consumption, and short service life. Moreover, the switches are exposed to the air, and the two pole pieces are directly rubbed and easily oxidized, resulting in poor contact and affecting performance. And traditional flashlight all adopts battery or rechargeable battery as power source to illuminate. When the battery is exhausted, if it is not taken out from the flashlight in time, the battery is easy to corrode and damage the metal flashlight body, thereby affecting the normal use of the flashlight. And batteries containing mercury will seriously pollute the environment if they are discarded. For this reason, people expect to have a kind of flashlight without external power source always. Patent No. "99223619.3" and "self-generating flashlight" use permanent ma...

AI Technical Summary

Problems solved by technology

Since the gear set adopts the mechanical transmission structure of the clock, its structure is complex, there are many other parts, and the manufacturing cost is relatively high.

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