CN2903653Y - Environment protection electric torch - Google Patents

Abstract

The utility model relates to an environment protective torch which comprises a casing, a magnetic switch, a light-emitting diode luminous body, a light gathering body on the casing head, a snoot, a reflecting bowl, wherein a main body is arranged within the casing, a permanent magnet which is able to move front and rear is arranged within the center action cavity of the main body, resilient mountings are arranged at the front and rear ends of the action cavity, the front or rear resilient mounting consists respectively of a small magnet and a rubber head, the magnetic line of the small magnet in the front or rear resilient mounting is in opposite direction with the magnetic line of the permanent line, coils are winded outside the main body, the second output terminal of the coil is connected with the luminous body through a wiring board, the reflecting bowl is arranged on the backseat baffle of the casing head, and the luminous body is arranged in the center of the reflecting bowl. Compared with the prior art, the utility model does not employ the dry battery, which prevents environmental pollution, and makes use of the counter motion thrust exerted to the permanent magnet by the small magnet. The utility model has lighter hand feeling when the torch is swayed, thereby greatly reducing swaying frequency, shortening the charging periodic time, improving the illuminating effect, and perfecting the property of the torch.

Description

Environment-friendly flashlight

Technical field

The utility model relates to a kind of lighting device, particularly a kind of illuminating flashlight.

Background technology

Illuminating flashlight generally all adopts neon bulb as lighting source, and power consumption is bigger, puts off until some time later and powers as power supply with dry cell; limited service life because of battery, need often to change, use cost is higher; waste battery contains mercury element, can cause environmental pollution, is unfavorable for environmental protection.The disclosed application number of Chinese patent is 200310112342.4 " electricity generated manually flashlights ", and its purpose provides by simply shaking and generates electricity, and it utilizes wind by the speed increasing gear group, and kinetic energy is passed to generator, by generator kinetic energy is converted into electric energy.Number of patent application is that the structure of 200410090898.2 " hand-operated self-generating electric torch " is also similar with above-mentioned content of the patent, though they just can provide stable power to flashlight without dry cell, it is used in a long time continuously, but all require with baroque gear train and generator, the inner parts in addition of torch are many, structure is relatively complicated, and cost is higher.The disclosed application number of Chinese patent is that " CN038000033.4 " " Faraday flashliglt " and the patent No. are that the structure of " CN03228777.1 " " permanent flashlight " is all according to conventional design, it is that permanent magnet is installed in coil, make cutting magnetic line movement in coil with permanent magnet, produce electric current.When permanent magnet moves to main body operation two ends, chamber, be that the elastic device by spring comes damping, thereby protect the damage of big magnet.But can cause a part of mechanical energy in damping, to be lost so after all, and moment bump is also bigger to the thrust that flashlight produces, flashlight is rocked be difficult to grasp..Moreover the illuminator back lacks reflector, makes the light source waste of a part, has reduced the brightness of illumination of flashlight.

Summary of the invention

The purpose of this utility model is at above-mentioned the deficiencies in the prior art and defective, and for society provides a kind of without external power source, and simple in structure, cost is lowly held concurrently, the environment-friendly flashlight of long service life.

Technical solution adopted in the utility model is for achieving the above object: this environment-friendly flashlight comprises shell, magnetic switch, the LED illuminator, reflector and be located at the optically focused convex lens and the fixed cap of case head, main body is housed in the shell, be placed with in the movable chamber of main center can before and after movable permanent magnet, the movable chamber of main body is around with coil, the output of coil joins by wiring board and illuminator, before the movable chamber of main body, rebounding device is housed in the rear end face, this rebounding device be inlaid on the main body end face respectively by Rubber end and small magnet form before, back rebounding device is before this, the small magnet magnetic line of force direction of back rebounding device is opposite with permanent magnet magnetic line of force direction; In order to improve the illuminator illuminating effect, on the back seat of case head, reflector is housed, make illuminator be positioned at the center of reflector.

The utility model has compared with prior art been simplified internal structure greatly, and without external cell, as long as rock flashlight, it is promptly luminous to open the switch illuminator, has avoided environmental pollution, is low, the free of contamination environment-friendly type flashlight of a kind of cost.Moreover, forward and backward both ends of the surface in the subject activity chamber are installed the small magnet opposite with the permanent magnet magnetic line of force, small magnet can be given deboost of permanent magnet during the permanent magnet motion, reduced mechanical loss of energy, accelerated round frequency, rock gentlyer, and shorten charge cycle, make this environment-friendly type flashlight performance more perfect.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the utility model electrical schematic diagram.

The specific embodiment

As shown in Figure 1, this environment-friendly flashlight includes shell 11, magnetic switch, LED illuminator 4 and is located at the optically focused convex lens 3 and the fixed cap 1 of case head.LED illuminator 4 is installed on the baffle plate and with wiring board and joins.Main body 10 is housed in the shell 11, main body is around with coil 12, permanent magnet 13 is equipped with in the movable chamber in main center, on the forward and backward both ends of the surface in the subject activity chamber rebounding device is housed, the front end rebounding device is made up of small magnet 7 and Rubber end 17, the rear end rebounding device is made up of small magnet 16 and Rubber end 15, and the magnetic line of force direction of small magnet 7 and small magnet 16 is opposite with the magnetic line of force direction of permanent magnet 13.At this moment, when permanent magnet 13 moves to operation two ends, chamber,, give 13 1 deboosts of permanent magnet by magnetic force according to the principle that the magnet same sex is repelled each other, make it change the direction of motion, in this process, twice conversion mutually by kinetic energy and magnetic energy significantly reduced mechanical loss of energy, accelerated the round frequency of permanent magnet 13 in the operation chamber, improved the electric energy generation rate, shortened charge cycle, and effectively avoided the moment flashlight that causes of the bump problem of slipping out of the hand easily. make simultaneously shake lighter.Near head magnetic switch is housed on shell, it comprises the caulking groove that is opened on the housing, and being entrenched in can the movable small magnet 9 and the push pedal that can promote the small magnet slip in front and back in this caulking groove.Be positioned at small magnet 9 corresponding housings the tongue tube 5 of a sealing is housed, the dynamic and static tongue of being made by magnetic material of a pair of upper and lower correspondence is arranged in the tongue tube of sealing.Small magnet pushes away forward, dynamic and static tongue closure, and circuit is connected.Cone vacuum coating reflector 8 is housed on the back seat baffle plate of case head, makes illuminator 4 be positioned at the center of reflector, to improve the illuminating effect of light.

As shown in Figure 2, the two output termination bridge rectifier D inputs of the coil L that main body is outer, bridge rectifier D and meet capacitor C D, voltage-stabiliser tube DW after, its anodal serial connection magnetic switch, current-limiting resistance R, LED illuminator, its output links to each other with the bridge rectifier negative pole.

During use, shake flashlight, make permanent magnet make cutting magnetic line movement in coil, just produce alternating current, this alternating current process bridge rectifier LD output DC, and be stored in capacitor C D through voltage-stabiliser tube DW output constant current, as long as open switch, electric current is connected, and the LED illuminator is just luminous.

Claims (2)

1, a kind of environment-friendly flashlight, it comprises shell (11), magnetic switch, LED illuminator (4) and be located at optically focused convex lens (3) and fixed cap (1) in the case head, main body (10) is housed in the shell, be placed with in the movable chamber of main center can before and after movable permanent magnet (13), before movable chamber, rebounding device is equipped with in the rear end, main body is around with coil (12), the output of coil joins by wiring board (6) and illuminator, it is characterized in that described rebounding device is before being inlaid in the subject activity chamber, the preceding rebounding device that Rubber end of rear end (17) and small magnet (7) are formed, with the back rebounding device of being made up of Rubber end (16) and small magnet (15), the magnetic line of force direction of small magnet (7) and small magnet (15) magnetic line of force direction with permanent magnet (13) respectively is opposite.

2, according to the environment-friendly flashlight shown in the claim 1, it is characterized in that on the back seat baffle plate of described case head reflector (8) being housed, illuminator (4) is positioned at the center of reflector.