CN2830894Y

CN2830894Y - Radiation structure of projection lamp

Info

Publication number: CN2830894Y
Application number: CNU2005201155557U
Authority: CN
Inventors: 李世辉; 高湘凯; 林俞延
Original assignee: Excellence Opto Inc
Current assignee: LIANJIA PHOTOELECTRIC CO Ltd
Priority date: 2005-07-21
Filing date: 2005-07-21
Publication date: 2006-10-25
Anticipated expiration: 2015-07-21

Abstract

The utility model discloses a heat radiating structure of a projection lamp, which comprises a lampshade, a seal cover, a light emitting unit and a base, wherein the predefined position of the lampshade is provided with a plurality of through holes; the seal cover is arranged on one end of the lampshade, and a plurality of corresponding holes corresponding to the through holes of the lampshade are arranged on the seal cover; the light emitting unit is arranged in the lampshade and is composed of a circuit board, and a light emitting body, a capacitor and a plurality of electronic passive elements which are respectively arranged on the circuit board, and the light emitting body and the capacitor correspond to the seal cover; the base is arranged on the other end of the lampshade, and an assembling part connected with the light emitting unit is arranged in the base, and can be used for restoring an external power supply. Due to the through holes and the corresponding holes on the lampshade and the seal cover, and the light emitting body and the capacitor which correspond to the seal cover on the same surface of the circuit board, the utility model not only enables a projection lamp to have a good heat radiating effect when the projection lamp is used, but also achieves the efficacy of integral volume reduction.

Description

The radiator structure of projecting lamp

Technical field

The utility model relates to a kind of radiator structure of projecting lamp.

Background technology

The projecting lamp of generally commonly using as shown in Figure 4, constituted by a cover body 5 and a base 6, be provided with a circuit board 7 between cover body 5 and the base 6, the one side of this circuit board 7 is provided with corresponding to the high-brightness luminous body 71 of cover body 5 opening parts 51 and most electronics passive device 72, and in being provided with electric capacity 73 and voltage transformation unit 74 on the another side of this circuit board 7 and in base 6, in addition being provided with one in base 6 is connected with voltage transformation unit 74, and can be for the group connecting part 61 that connects external power source, use to make this projecting lamp be arranged at the place, desired position, to add the use of intense light source as the part.

Though the above-mentioned structure of commonly using projecting lamp can reach the use that the part adds intense light source, but because the illuminator that its illuminator 71 is high brightness, therefore, also can produce high thermal source relatively when it is luminous, if heat radiation that can not be in good time, then will cause illuminator 71 overheated and damage, so, it is important that the heat radiation of this projecting lamp also shows, and see it with the projecting lamp that this is commonly used, its heat radiation the time is by dispelling the heat between the cover body 5 of aluminum and the extraneous air, thus cause the thermal source dissipation speed of illuminator 71 relatively poor, and most thermal source is hoarded on illuminator 71, moreover its electric capacity 73 is to be arranged in the base 6, and also be provided with most electronics passive devices 72 in the base 6 simultaneously, voltage transformation unit 74 and group connecting part 61 can't be put jumbo electric capacity so made in its base 6 by the restriction in space, fill and produce, the deficiency of discharge; Therefore, the projecting lamp of commonly using has the bad phenomenon of radiating effect, makes its illuminator easily because of the deficiency of overheated and charge and discharge causes flicker or damage simultaneously, and then reduces its service life.

The utility model content

The purpose of this utility model is to solve the bad problem of commonly using of projecting lamp radiating effect, and the radiator structure of the preferable projecting lamp of a kind of radiating effect is provided.

The utility model includes a lampshade, a capping, a luminescence unit, a base, and wherein, the pre-position of lampshade is provided with most perforation; Capping is arranged at an end of lampshade, and this capping is provided with most corresponding apertures corresponding with the perforation of lampshade; Luminescence unit is arranged in the lampshade, and this luminescence unit is made of a circuit board and the illuminator, electric capacity, the most electronics passive device that are arranged on the circuit board respectively, and this illuminator and electric capacity are corresponding with capping; Base is arranged at the other end of lampshade, is provided with a group connecting part that is connected with luminescence unit in this base, and this group connecting part can be for acquisition one external power source.

Described lampshade is an aluminium material.

Can be provided with lens between described lampshade and the capping, these lens are corresponding with illuminator.

Described illuminator is the LED of high brightness.

Described group connecting part can be connected with a voltage transformation unit.

The utility model is gone up with capping corresponding illuminator and electric capacity with corresponding aperture and circuit board with one side by the majority perforation in lampshade and the capping, except this projecting lamp is brought into play the preferable radiating effect in use, and can reach the effect of dwindling overall volume.

Description of drawings

Fig. 1 is a three-dimensional appearance schematic diagram of the present utility model.

Fig. 2 is a cross-sectional schematic of the present utility model.

Fig. 3 is a user mode cross-sectional schematic of the present utility model.

Fig. 4 is a cross-sectional schematic of commonly using projecting lamp.

The specific embodiment

See also Fig. 1, shown in Figure 2, the utility model is made of a lampshade 1, a capping 2, a luminescence unit 3, a base 4, brings into play in use the preferable radiating effect except making this projecting lamp, and can reach the effect of dwindling overall volume.

The pre-position of described lampshade 1 is provided with most perforation 11, and the material that this lampshade 1 is an aluminium is made.

Described capping 2 is arranged at an end of lampshade 1, and this capping 2 is provided with the corresponding corresponding aperture 21 of perforation 11 of most and lampshade 1, is provided with lens 22 between this capping 2 and the lampshade 1, and these lens 22 are corresponding with illuminator 32.

Described luminescence unit 3 is arranged in the lampshade 1, this luminescence unit 3 is by a circuit board 31 and the illuminator 32 that is arranged at respectively on the circuit board 31, electric capacity 33, most electronics passive device 34 constitutes, this illuminator 32 is the LED of high brightness, this illuminator 32 and electric capacity 33 are corresponding with capping 2, and make this illuminator 32 corresponding with lens 22, use and make illuminator 32 utilize lens 22 to produce irradiation distance far away, and because the circuit board 31 of this luminescence unit 3, illuminator 32, electric capacity 33 and most electronics passive device 34 connect and are arranged among the lampshade 1, therefore can dwindle the volume of base 4 significantly.

Described base 4 is arranged at the other end of lampshade 1, is provided with a group connecting part 41 that is connected with luminescence unit 3 in this base 4, and this group connecting part 41 can be for acquisition one external power source, and this group connecting part 41 can be connected with a voltage transformation unit 42.

See also shown in Figure 3, when the utility model uses, projecting lamp can be arranged at position such as ceiling by the group connecting part 41 on its base 4, and can be by this group connecting part 41 acquisitions one external power source, and the voltage that the 110V of general civil power is converted to AC12V by voltage transformation unit 42 uses for luminescence unit 3, and when illuminator 32 is the LED evolution of heat in use of high brightness, can utilize the principle of thermal convection current, cold air in the environment is entered by the corresponding aperture 21 of capping 2, and the heat that illuminator 32 sends is in use squeezed by the perforation of the majority on the lampshade 1 11, use make cold, hot-air is by each corresponding aperture 21 and bore a hole and produce convection current in 11, and reaches the dissipation of heat.

The utility model by the majority in lampshade 1 and the capping 2 perforation 11 and corresponding apertures 21 and circuit board 31 with illuminator 32 and electric capacity 33 corresponding on the one side with capping 2, except this projecting lamp is brought into play the preferable radiating effect in use, and can reach the effect of dwindling overall volume.

Claims

1, a kind of radiator structure of projecting lamp is characterized in that: include a lampshade, a capping, a luminescence unit, a base, wherein, the pre-position of lampshade is provided with most perforation; Capping is arranged at an end of lampshade, and this capping is provided with most corresponding apertures corresponding with the perforation of lampshade; Luminescence unit is arranged in the lampshade, and this luminescence unit is made of a circuit board and the illuminator, electric capacity, the most electronics passive device that are arranged on the circuit board respectively, and this illuminator and electric capacity are corresponding with capping; Base is arranged at the other end of lampshade, is provided with a group connecting part that is connected with luminescence unit in this base, and this group connecting part can be for acquisition one external power source.

2, according to the radiator structure of the described a kind of projecting lamp of claim 1, it is characterized in that: described lampshade is an aluminium material.

3, according to the radiator structure of the described a kind of projecting lamp of claim 1, it is characterized in that: be provided with lens between described lampshade and the capping, these lens are corresponding with illuminator.

4, according to the radiator structure of the described a kind of projecting lamp of claim 1, it is characterized in that: described illuminator is the LED of high brightness.

5, according to the radiator structure of the described a kind of projecting lamp of claim 1, it is characterized in that: described group connecting part is connected with a voltage transformation unit.