CN201339848Y

CN201339848Y - Projection lamp

Info

Publication number: CN201339848Y
Application number: CNU2008201899876U
Authority: CN
Inventors: 陈智佳
Original assignee: MEIJIASI (HK) CO Ltd
Current assignee: MEIJIASI (HK) CO Ltd
Priority date: 2008-12-25
Filing date: 2008-12-25
Publication date: 2009-11-04
Anticipated expiration: 2018-12-25

Abstract

The utility model discloses a projection lamp, which comprises a shell and a luminous element. The projection pump also comprises a control circuit for controlling the starting and shutting down of the luminous element; the luminous element is at least a lighting LED; the control circuit comprises a power circuit for transforming a commercial power voltage into a direct current voltage as well as a switch circuit for controlling the starting and shutting down of the lighting LED; the power circuit is provided with a power input end electrically connected with the commercial power and a power output end electrically connected with the switch circuit; the switch output end of the switch circuit is electrically connected with the lighting LED; the switch circuit realizes to automatically control the starting and shutting down of the luminous element to lead the luminous element to be turned off during day time and started at night for lighting; the luminous element adopts the LED and has the characteristics of long service life, power saving, energy saving and environmental protection. The projection pump is suitable for the development requirement of the modern society.

Description

A kind of projection lamp

Technical field

The utility model relates to a kind of night illumination device, is specifically related to a kind of projection lamp.

Background technology

When night's rest, usually need in the life to drink water or go to the toilet, the illuminating lamp one that open in the room this moment is or not very convenient in the dark, the 2nd, strong light is felt uncomfortable the people, also can influence other people normal rest of roomate, in addition in the corridor, stair or other public place also need extinguish a kind of daytime, start the automatic lighting of illumination night, that uses at present uses incandescent lamp, sodium vapor lamp is as the lighting of light-emitting component, there is the power consumption height, the defective that life-span is short, do not meet energy conservation and environment protection, existing night illumination light fixture function is simple simultaneously, lacks new meaning and entertaining.

The utility model content

In order to address the above problem, the purpose of this utility model is to provide extinguish a kind of daytime, starts the automatic lighting of illumination night, and the energy projection pattern, has new meaning and entertaining, simultaneously long service life, power and energy saving environmental protection.

To achieve these goals, the technical scheme that the utility model is taked is, a kind of projection lamp, comprise shell, described projection lamp also is provided with the LED projection arrangement of doing light source and projectable's pattern with LED, described LED projection arrangement comprises projection image card and projective LED, described projection image is arranged in the projective LED top, described projective LED is at least one LED, described projection lamp also comprises control circuit, described control circuit comprises that one changes line voltage into the power circuit of DC voltage and the on-off circuit that the described projective LED of control starts or closes, described power circuit is provided with power input that is electrically connected with mains supply and the power output end that is electrically connected with described on-off circuit, and the output switching terminal that described on-off circuit is provided with is electrically connected with described projective LED.

Preferably, described shell is provided with the slot that inserts and change the projection image card.

Preferably, described power input be one with the plug of commercial power socket coupling, also be provided with extension socket on the described shell with the commercial power socket same specification.

Preferably, described projection lamp also is provided with illuminating light-emitting component, and described light-emitting component is at least one illumination LED, and described illumination LED is electrically connected on described on-off circuit.

Preferably, described on-off circuit is a light-operated circuit, and the core parts of described light-operated circuit are a photo resistance and a triode, and described photo resistance is electrically connected with the control end of described triode.

Preferably, described on-off circuit comprises power circuit of connecting with described illumination LED projective LED and the timing circuit of controlling described power circuit conducting and disconnection.

Preferably, described projection lamp also is provided with ultrasonic wave mosquito repellent circuit, and described ultrasonic wave mosquito repellent circuit is electrically connected with described power circuit, and described ultrasonic wave mosquito repellent circuit comprises that ultrasonic transducer and core circuit are the high-frequency oscillating circuits of 556 integrated circuits.

After adopting technique scheme, the beneficial effect that is produced is, on-off circuit has realized the startup of light-emitting component and the automatic control of cutting out, light-emitting component is extinguished daytime, start illumination evening, light-emitting component adopts LED to have the characteristics of life-span length, power and energy saving environmental protection, meets modern social development's requirement.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is the block diagram of the utility model embodiment one;

Fig. 2 is the circuit theory diagrams of the utility model embodiment one;

Fig. 3 is the structural representation of the utility model embodiment one.

Among the figure:

1. power circuit 2. extension sockets 3. perspective view cards 4. projective LEDs

5. on-off circuit 6. illumination LEDs 7. ultrasonic wave mosquito repellent circuit

51. photo resistance 52. pliotrons 71. ultrasonic transducers

72. high-frequency integrated circuit

The specific embodiment

Embodiment one

As depicted in figs. 1 and 2, a kind of projection lamp, comprise shell and light-emitting component, and the control circuit of controlling the light-emitting component startup or closing, light-emitting component is at least one illumination LED 6 and at least one projective LED 4, control circuit comprises that one changes line voltage into the power circuit 1 of DC voltage and the on-off circuit 5 that control illumination LED 6 and projective LED 4 starts or close, power circuit 1 is provided with power input that is electrically connected with mains supply and the power output end that is electrically connected with on-off circuit 5, the output switching terminal that on-off circuit 5 is provided with is electrically connected with described illumination LED 6 and projective LED 4, power input be one with the plug of commercial power socket coupling, also be provided with extension socket 2 on the shell with the commercial power socket same specification.

On-off circuit 5 is a light-operated circuit, and the core parts of light-operated circuit are a photo resistance 51 and a pliotron 52, and photo resistance 51 is electrically connected with the control end of described pliotron 52.

Projection lamp also is provided with the LED projection arrangement of doing light source and projectable's pattern with projective LED 4, and the LED projection arrangement comprises projection image card 3 and projective LED 4, and projection image card 3 is located at projective LED 4 tops.

Projection lamp also is provided with ultrasonic wave mosquito repellent circuit 7, and ultrasonic wave mosquito repellent circuit 7 is electrically connected with power circuit 1, and ultrasonic wave mosquito repellent circuit 7 comprises that ultrasonic transducer 71 and core circuit are that model is the high-frequency oscillating circuits that 556 high-frequency integrated circuit 72 constitutes.

The operation principle of present embodiment is, projection lamp is inserted commercial power socket, because the setting of extension socket is arranged, therefore do not influence the use of other electrical equipment, can be because of the anxiety that the causes supply socket multipurpose socket of additionally spending to purchase, simultaneously power circuit 1 provides dc source for on-off circuit 5 and ultrasonic wave mosquito repellent circuit 7 after with the filtering of civil power step-down rectifier, be connected by switch between ultrasonic wave mosquito repellent circuit 7 and the power circuit 1, when switch disconnects, mosquito repellent circuit 7 quits work, with convenient this luminous lamp that uses in the season that does not have mosquito to invade and harass, behind switch closure, ultrasonic wave mosquito repellent circuit 7 electric, high-frequency integrated circuit 72 generates high frequency ac signal or the pulse signal of 27KHz to 60KHz, thereby encourages ultrasonic transducer 71 that high frequency electrical signal is converted to ultrasonic signal, because its frequency of sound wave is the frequency that mosquito is detested very much, thereby reach the purpose of mosquito repellent,, therefore can not influence people's sleep and normal life simultaneously because the human auditory is insensitive to ultrasonic wave.In the time of by day, because the light that shines in the photo resistance 51 is very strong, therefore the resistance of photo resistance 51 increases, the electric current that flows through the pliotron 52 control utmost points is very little, pliotron 52 is in cut-off state, there is not electric current to flow through on illumination LED 6 and the projective LED 4, therefore illumination LED 6 and projective LED 4 are in and extinguish state, arrive when night, the light that shines in the photo resistance 51 is very weak, therefore the resistance of photo resistance 51 reduces, the electric current that flows through the pliotron 52 control utmost points is very big, and pliotron 52 is in conducting state, has electric current to flow through on illumination LED 6 and the projective LED 4, therefore illumination LED 6 and projective LED 4 are in luminance, illumination LED 6 irradiation ground provide the night lights illumination, and for life is provided convenience, the light that projective LED 4 sends then passes the perspective view card 3 that is arranged at above it, therefore go out image pre-processed on the projection image card 3 in projection on the room ceiling, for life has increased more decorations and entertaining.According to the voltage and current size, illumination LED 6 and projective LED 4 can also can be connected in parallel connection.Because the brightness of illumination LED 6 and projective LED 4 can be adjusted easily by the size of current that adjustment is flow through them, makes illumination be in a suitable scope, can not make the people feel dazzling uncomfortable or influence sleep and having a rest.

Embodiment two

Present embodiment is identical with embodiment one, and difference is that on-off circuit 5 is made up of the timing circuit of the power circuit of connecting with illumination LED 6 and projective LED 4 and control power circuit conducting and disconnection.Power circuit can be that the contact relay constitutes, illumination LED 6 and projective LED 4 constitute the loop by above-mentioned contact and power circuit, timing circuit connects or disconnects the power supply of contact electromagnetic coil relay in the time of setting, thereby being switched on or switched off of control contact reaches the purpose of lighting or extinguishing illumination LED 6 and projective LED 4; Power circuit also can be pliotron 52 or IGCT, timing circuit connects or disconnects the control signal of pliotron 52 or IGCT in the time of setting, make pliotron 52 or IGCT conducting or end, thereby reach the purpose that control illumination LED 6 and projective LED 4 are lighted or extinguished.

Wherein, projection image card 3 can be changed easily, to satisfy multifarious demand.

After adopting technique scheme, the beneficial effect that is produced is, on-off circuit has realized the startup of light-emitting component and the automatic control of cutting out, light-emitting component is extinguished daytime, start illumination evening, light-emitting component adopts LED to have the characteristics of life-span length, power and energy saving environmental protection, meets modern social development's requirement.Simultaneously, because the setting of extension socket is arranged, therefore do not influence the use of other electrical equipment, can be because of the anxiety that the causes supply socket multipurpose socket of additionally spending to purchase, ultrasonic wave mosquito repellent circuit 7 and projection arrangement make the utility model practical more and be imbued with ornamental, interesting.

Above-mentioned just the utility model preferred embodiment but should not constitute restriction of the present utility model, so long as adopt the technical scheme that is equal to the utility model, and also should be within protection domain of the present utility model.

Claims

1. projection lamp, comprise shell, it is characterized in that, described projection lamp also is provided with the LED projection arrangement of doing light source and projectable's pattern with LED, described LED projection arrangement comprises projection image card and projective LED, described projection image is arranged in the projective LED top, described projective LED is at least one LED, described projection lamp also comprises control circuit, described control circuit comprises that one changes line voltage into the power circuit of DC voltage and the on-off circuit that the described projective LED of control starts or closes, described power circuit is provided with power input that is electrically connected with mains supply and the power output end that is electrically connected with described on-off circuit, and the output switching terminal that described on-off circuit is provided with is electrically connected with described projective LED.

2. a kind of projection lamp according to claim 1 is characterized in that, described shell is provided with the slot that inserts and change the projection image card.

3. a kind of projection lamp according to claim 1 is characterized in that, described power input be one with the plug of commercial power socket coupling, also be provided with extension socket on the described shell with the commercial power socket same specification.

4. a kind of projection lamp according to claim 1 is characterized in that described projection lamp also is provided with illuminating light-emitting component, and described light-emitting component is at least one illumination LED, and described illumination LED is electrically connected on described on-off circuit.

5. a kind of projection lamp according to claim 4 is characterized in that, described on-off circuit is a light-operated circuit, and the core parts of described light-operated circuit are a photo resistance and a triode, and described photo resistance is electrically connected with the control end of described triode.

6. according to claim 4 or 5 described a kind of projection lamps, it is characterized in that described on-off circuit comprises power circuit of connecting with described illumination LED and projective LED and the timing circuit of controlling described power circuit conducting and disconnection.

7. according to the arbitrary described a kind of projection lamp of claim 1 to 5, it is characterized in that, described projection lamp also is provided with ultrasonic wave mosquito repellent circuit, described ultrasonic wave mosquito repellent circuit is electrically connected with described power circuit, and described ultrasonic wave mosquito repellent circuit comprises that ultrasonic transducer and core circuit are the high-frequency oscillating circuits of 556 integrated circuits.