CN205331925U

CN205331925U - Eye protection lamp

Info

Publication number: CN205331925U
Application number: CN201521025730.3U
Authority: CN
Inventors: 鲁永忠
Original assignee: CHONGQING XINDE ELECTRONICS Co Ltd
Current assignee: CHONGQING XINDE ELECTRONICS Co Ltd
Priority date: 2015-12-12
Filing date: 2015-12-12
Publication date: 2016-06-22
Anticipated expiration: 2025-12-12

Abstract

The utility model discloses an eye protection lamp to solve long -time use of present desk lamp and injure great problem to eyes. Eye protection lamp, including the bulb, set up fluorescent tube of being connected at the front end open -ended lamp shade of bulb periphery, upper end and lamp shade and the lamp stand of being connected with the fluorescent tube lower extreme, its characterized in that it has the light trap to open on the terminal surface of lamp shade, and the light trap has the internal thread, but threaded connection has the shroud in the light trap, and light trap and the interior cavity intercommunication of lamp shade are equipped with the light control circuit in the cavity, the light control circuit include power module, rectifier module, relay, trigger circuit and light sensing element, the normally open contact of relay connects on the return circuit of bulb, light sensing element passes through the power of induction light, makes the break -make of trigger circuit control relay.

Description

A kind of eye-protecting lamp

Technical field

This utility model relates to lighting engineering, is specifically related to a kind of eye-protecting lamp。

Background technology

Along with the raising of modern life level, bulk information pours in our sight line, and people use time of mobile phone and computer more every day, and the ratio that the vision of people is generally reduced is more serious, and therefore the protection of vision is increasingly paid attention to by people。Lamp is that people live requisite apparatus every day, electric filament lamp that desk lamp that current people use is usually normal or LED, and these desk lamps often do not have the function of eye protection, long-time use the eye injury of people is bigger。

Utility model content

This utility model is intended to provide a kind of eye-protecting lamp, uses the problem that eye injury is bigger for a long time solving existing desk lamp。

A kind of eye-protecting lamp in this programme, including bulb, it is arranged on the lampshade of the front opening of bulb periphery, fluorescent tube that upper end is connected with lampshade and the lamp socket being connected with fluorescent tube lower end, the end face of described lampshade has loophole, loophole has female thread, cover cap has been can be threaded connection with in loophole, loophole connects with the cavity in lampshade, lighting control circuit it is provided with in cavity, described lighting control circuit includes power module, rectification filtering module, relay, trigger circuit and photoinduction element, the normally opened contact of relay is connected on the loop of bulb, photoinduction element is by sensing the power of light, make the power on/off of triggering circuit control relay。

The utility model has the advantage of: when not using the eye-protecting lamp of this programme, by cover cap precession loophole, cover loophole, photoinduction element sensing, less than light, triggers circuit control relay not charged, and its bulb loop no current, bulb does not work。When using the eye-protecting lamp of this programme, cover cap is screwed off, has light to penetrate in loophole; trigger circuit control relay and obtain electric, the normally opened contact adhesive of relay, bulb loop turns on; bulb is bright, and people can read a book under lamp or do other things, when people feel fatigue; can be sleepy, can bow one's head, the light of loophole is covered; triggering circuit control relay power-off, the normally opened contact of relay disconnects, and bulb extinguishes; can have a rest during to ensure people's fatigue, thus protecting vision at once。

Further, the circuit of described power module is connected to fuse。Fuse, when source current is excessive, can automatically fuse, power supply is played a protective role。

Further, photoinduction element is optical transistor, senses sensitive。

Further, trigger circuit and include first crystal audion and the second crystal triode, the base stage of first crystal audion is connected with one end of the colelctor electrode of optical transistor and the first resistance respectively, first crystal audion and colelctor electrode are connected with the colelctor electrode of one end of the second resistance and the second crystal triode respectively, the colelctor electrode of first crystal audion is connected with one end of the 3rd resistance and the 4th resistance respectively, the other end of the 4th resistance and the base stage of the second crystal triode connect, the colelctor electrode of the second crystal triode is connected with one end of relay, another termination power module of relay。First crystal audion and the second crystal triode composition emitter-base bandgap grading coupled bistable trigger circuit, reliable operation。

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model embodiment。

Fig. 2 is the structural representation of lighting control circuit in Fig. 1 embodiment。

Detailed description of the invention

Below by detailed description of the invention, this utility model is described in further detail:

Accompanying drawing labelling in Figure of description includes: lampshade 1, fluorescent tube 2, lamp socket 3, cover cap 4, button S, fuse FU, transformator T, bridge rectifier module VC, relay K A, first crystal audion VT1, the second crystal triode VT2。

Eye-protecting lamp as shown in Figure 1, bulb is positioned at lampshade 1, lampshade 1 front opening, and lampshade 1 is from back to front in enlarging shape, and fluorescent tube 2 is metal bellows, and the upper end of fluorescent tube 2 has lampshade 1 to connect, and threadeds with lamp socket 3 in the lower end of fluorescent tube 2。Having loophole on the end face of lampshade 1, loophole has female thread, can be threaded connection with cover cap 4 in loophole, and loophole connects with the cavity in lampshade 1。

As shown in Figure 2, lighting control circuit it is provided with in cavity, lighting control circuit includes power module, rectification filtering module, relay K A, trigger circuit and photoinduction element, power module includes alternating current 220V power supply, the two ends of alternating current 220V power supply are connected with the armature winding of transformator T, fuse FU and button S it is also associated with between alternating current 220V power supply and armature winding, the two ends of the secondary windings of transformator T are connected with the two ends of bridge rectifier module VC, the lead-out wire at bridge rectifier module VC two ends is parallel with the first resistance and the first electric capacity respectively, the positive pole of the first electric capacity respectively with the second resistance, 3rd resistance, variable resistance, the emitter stage of optical transistor, 4th resistance connects, the negative pole of the first electric capacity respectively with one end of relay K A, one end of 5th resistance and the variable-resistance other end connect, the other end of relay K A and the colelctor electrode of the second crystal triode VT2 connect, the base stage of the second crystal triode VT2 is connected with one end of the other end of the second resistance and the 6th resistance respectively, the emitter stage of the second crystal triode VT2 is connected with the emitter stage of first crystal audion VT1, the colelctor electrode of first crystal audion VT1 is connected with the other end of the 6th resistance and the 5th resistance respectively, the base stage of first crystal audion VT1 is connected with one end of the 7th resistance and the colelctor electrode of optical transistor respectively, the base stage of optical transistor is connected with the other end of the 4th resistance。The normally opened contact of relay K A is connected on the loop of bulb。

Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this。Should be understood that; for a person skilled in the art, under the premise without departing from this utility model structure, it is also possible to make some deformation and improvement; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented。The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim。

Claims

1. an eye-protecting lamp, including bulb, it is arranged on the lampshade of the front opening of bulb periphery, fluorescent tube that upper end is connected with lampshade and the lamp socket being connected with fluorescent tube lower end, it is characterized in that, the end face of described lampshade has loophole, loophole has female thread, cover cap has been can be threaded connection with in loophole, loophole connects with the cavity in lampshade, lighting control circuit it is provided with in cavity, described lighting control circuit includes power module, rectification filtering module, relay, trigger circuit and photoinduction element, the normally opened contact of relay is connected on the loop of bulb, photoinduction element is by sensing the power of light, make the power on/off of triggering circuit control relay。

2. a kind of eye-protecting lamp according to claim 1, it is characterised in that: on the circuit of described power module, it is connected to fuse。

3. a kind of eye-protecting lamp according to claim 2, it is characterised in that: described photoinduction element is optical transistor。

4. a kind of eye-protecting lamp according to claim 3, it is characterized in that: described triggering circuit includes first crystal audion and the second crystal triode, the base stage of first crystal audion is connected with one end of the colelctor electrode of optical transistor and the first resistance respectively, first crystal audion and colelctor electrode are connected with the colelctor electrode of one end of the second resistance and the second crystal triode respectively, the colelctor electrode of first crystal audion is connected with one end of the 3rd resistance and the 4th resistance respectively, the other end of the 4th resistance and the base stage of the second crystal triode connect, the colelctor electrode of the second crystal triode is connected with one end of relay, another termination power module of relay。