CN201425187Y

CN201425187Y - High-power LED spot lamp

Info

Publication number: CN201425187Y
Application number: CN2009201319540U
Authority: CN
Inventors: 李明奎; 刘珍; 黄森林
Original assignee: SHENZHEN HENGZHIYUAN ELECTRICAL APPLIANCES CO Ltd
Current assignee: SHENZHEN HENGZHIYUAN ELECTRICAL APPLIANCES CO Ltd
Priority date: 2009-05-22
Filing date: 2009-05-22
Publication date: 2010-03-17
Anticipated expiration: 2019-05-22

Abstract

The utility model discloses a high-power LED spot lamp which comprises a lamp body, a connection terminal arranged on the lamp body, a driving power supply arranged in the lamp body and electrically connected with the connection terminal, LED light sources arranged in the lamp body and electrically connected with the driving power supply, and a lens sleeved on each LED chip of the LED light sources, wherein the lens is provided with a light-emitting surface; a conical platform is downwardly formed from the light-emitting surface; an accommodating part is formed at the lower end of the conicalplatform; a projection in the shape of a spherical crown is downwardly formed from the conical platform; and the LED chips are accommodated in the accommodating part of the lens. The lens is arrangedcorrespondingly to each LED chip of the LED light sources; and light generated by the LED chips is decomposed to form a plurality of image points after the light distribution of the lens and then uniform surface light sources are formed, so that the light generated by the LED chips appears soft due to the decomposition, and the glare problem is simply and effectively solved.

Description

The great power LED shot-light

Technical field

The utility model relates to a kind of lighting device, refers in particular to a kind of large-power light-emitting diodes (LightEmitting Diode; LED) shot-light.

Background technology

Than traditional Halogen lamp LED, the LED shot-light has plurality of advantages such as high light efficiency, low energy consumption, long service life, and just progressively replaces Halogen lamp LED to make the usefulness such as the local lighting in places such as market, family.Yet for existing great power LED shot-light, its led light source that adopts mostly is point light source light-emitting, can produce dazzling dazzle in the process of using, and causes the sense of discomfort to people, causes visual fatigue easily, even, cause eyesight decline.So, the structure that needs to improve existing great power LED shot-light is arranged, to satisfy the further demand in people's use.

Summary of the invention

Main purpose of the present utility model is to overcome the defective that has dazzle of traditional great power LED shot-light, and a kind of LED shot-light of anti-dazzle is provided.

To achieve these goals, the utility model is by technical scheme as described below: a kind of great power LED shot-light, include a lamp body, one is arranged at the splicing ear on the described lamp body, one driving power that is arranged in the described lamp body and is electrically connected with described splicing ear, one led light source that is arranged in the described lamp body and is electrically connected with described driving power, and be sheathed on lens on each led chip of described led light source, wherein, described lens have a beam projecting face, face down from this beam projecting and to be formed with a frustum, the lower end of described frustum is formed with a holding part, the top end of described holding part has a spherical crown shape projection that forms downwards from this frustum, and the holding part of described lens is taken in led chip in wherein.

In the above-mentioned great power LED shot-light, evenly be formed with strip projected parts on the beam projecting face of described lens.

In the above-mentioned great power LED shot-light, described strip projected parts is that the cross section is leg-of-mutton structure.

In the above-mentioned great power LED shot-light, described lens are arranged at corresponding to the position of led chip on the lens pressing plate.

In the above-mentioned great power LED shot-light, described led light source is close to and is provided with a radiator.

In the above-mentioned great power LED shot-light, be provided with a thermal conductive silicon rubber cushion between described led light source and the described radiator.

In the above-mentioned great power LED shot-light, described radiator is an aluminium alloy heat radiator.

In the above-mentioned great power LED shot-light, the torsion spring of a spring arm towards this lamp body front end respectively installed in the two sides of described lamp body.

In the above-mentioned great power LED shot-light, described lamp body includes the back shroud that lampshade plate and that a heat-dissipating casing, is arranged at this heat-dissipating casing front end is arranged at this heat-dissipating casing rear end.

In the above-mentioned great power LED shot-light, be formed with louvre on the described heat-dissipating casing.

The beneficial effects of the utility model are: each led chip corresponding to led light source is provided with lens, the light that led chip produced is through behind the luminous intensity distribution of lens, be decomposed to form numerous picture points, and then formation uniform surface light source, make light that led chip sends because of being disperseed to seem soft, solved the problem of dazzle simply and effectively.

Description of drawings

Fig. 1 is the surface structure schematic diagram of the utility model great power LED shot-light.

Fig. 2 is the decomposition texture schematic diagram of the utility model great power LED shot-light.

Fig. 3 is the sectional structure schematic diagram of the lens of the utility model great power LED shot-light.

Fig. 4 a to Fig. 4 c is the scheme of installation of the utility model great power LED shot-light.

The specific embodiment

For making those of ordinary skill in the art be expressly understood the purpose of this utility model, technical scheme and advantage more, the utility model is further elaborated below in conjunction with drawings and Examples.

With reference to illustrated in figures 1 and 2, great power LED shot-light disclosed in the utility model mainly includes a lamp body 10, a splicing ear 20, a led light source 30, a driving power 40 and a plurality of lens 50.

The back shroud 104 that the lampshade plate 102 and that lamp body 10 is arranged at heat-dissipating casing 100 front ends by a heat-dissipating casing 100, is arranged at heat-dissipating casing 100 rear ends constitutes, like this, the three forms this lamp body 10 with the accommodation space that can be used for putting led light source 30 and driving power 40.Preferably, on the heat-dissipating casing 100 of lamp body 10, be formed with louvre 106, the air of lamp body 10 inside flowed, and will give out apace outside the lamp body 10 by the heat that led light source 30 is produced.

Splicing ear 20 uses screw to be fixedly arranged on the back shroud 104 of lamp body 10 rear ends, and itself and the external power source such as civil power are electrically connected and make the great power LED shot-light to obtain working power.

Driving power 40 is arranged at lamp body 10 inside, and its input is electrically connected with splicing ear 20 by lead 400, and will coming from the direct current of external power source or alternating current, to convert the suitable direct current of electric current and voltage to luminous with driving LED light source 30.In this embodiment, three hexagonal joint pins of use 402 cooperate screws and driving power 40 are fixed on the inner surface of back shroud 104.

The led light source 30 that uses lead 300 and be electrically connected in driving power 40 outputs is arranged among the lamp body 10, and it includes a printed circuit board (PCB) (Printed Circuit Board; PCB) 302 and be installed on a plurality of high-power LED chips 304 on this printed circuit board (PCB) 302, wherein, led chip 304 connects in the mode of serial or parallel connection or string and series-parallel connection.Preferably, led light source 30 is close to and is provided with a radiator 60, and the effect that it plays the conduction heat can distribute the heat that led light source 30 is produced apace, avoids influencing because of operating temperature is too high every performance of led chip 304.Usually, radiator 60 adopts aluminium alloy heat radiator, and it has good heat conductivity, lightweight advantage.Further, the situation of line short circuit occurs for fear of radiator 60 direct contacts, a thermal conductive silicon rubber cushion 70 can be set between radiator 60 and led light source 30 with the printed circuit board (PCB) 302 of led light source 30.

Corresponding to each led chip 304, be arranged with lens 50 on it.In conjunction with shown in Figure 3, lens 50 have a beam projecting face 500, be formed with a frustum 502 downwards from this beam projecting face 500, the lower end of frustum 502 is formed with a holding part 504, and the top end of holding part 504 has one from the frustum 502 downward spherical crown shape projectioies 506 that form.Lens 50 are provided with corresponding to led chip 304, holding part 504 is taken in led chip 304 in wherein, like this, the light that led chip 304 is produced is through behind the luminous intensity distribution of lens 50, be decomposed to form numerous picture points, and then the formation uniform surface light source, make light that led chip 304 sends because of being disperseed to seem soft, solved the problem of dazzle simply and effectively.Preferably, evenly being formed with the cross section on the beam projecting face 500 is the strip projected parts 508 of triangular structure, can further decompose the light that led chip 304 is launched, to form uniform surface light source.

A plurality of lens 50 are arranged on the lens pressing plate 80 corresponding to the position of a plurality of led chips 304,, thereby realize that lens 50 are sheathed on the led chip 304 then by screw be spirally connected lens pressing plate 80 and printed circuit board (PCB) 302.

For the ease of the installation and removal of LED shot-light, can a torsion spring 90 respectively be installed in the two sides of lamp body 10, this torsion spring 90 with spring arm 900 towards the mode of lamp body 10 front ends and be provided with.With reference to figure 4a to Fig. 4 c, during installation, the spring arm 900 of torsion spring 90 is turned round to lamp body 10 rear ends, and lamp body 10 begun to fill in from its rear end in the installing hole 120 of installing plate 12, after to a certain degree, torsion spring 90 under the effect of self elastic force towards the rotation that resets of lamp body 10 front ends, and its spring arm 900 butts are supported on the installing plate 12, and lamp body 10 is subjected to the elastic force effect of torsion spring 90 and is closely attached on the surface of installing plate 12 voluntarily, thereby realizes the installation of LED shot-light; During dismounting, spur lamp body 10 downwards, torsion spring 90 is rotated towards lamp body 10 rear end under the mating reaction of pulling force and installing plate 12, and the LED shot-light can be pulled out in installing hole 120.

Above-mentioned only is preferred embodiment of the present utility model, but not the utility model is done any pro forma restriction, and all equivalent variations or modifications of being done in the claim scope all should fall within the utility model protection domain.

Claims

1, a kind of great power LED shot-light, include a lamp body (10), one is arranged at the splicing ear (20) on the described lamp body (10), one led light source (30) that is arranged in the described lamp body (10) and is arranged in the described lamp body (10) and be electrically connected with described driving power (40) with driving power (40) and that described splicing ear (20) is electrically connected, it is characterized in that: be arranged with lens (50) on each led chip (304) of described led light source (30), described lens (50) have a beam projecting face (500), be formed with a frustum (502) downwards from this beam projecting face (500), the lower end of described frustum (502) is formed with a holding part (504), the top end of described holding part (504) has a spherical crown shape projection (506) that forms downwards from this frustum (502), and the holding part (504) of described lens (50) is taken in led chip (304) in wherein.

2, great power LED shot-light as claimed in claim 1 is characterized in that: evenly be formed with strip projected parts (508) on the beam projecting face (500) of described lens (50).

3, great power LED shot-light as claimed in claim 2 is characterized in that: described strip projected parts (508) is that the cross section is leg-of-mutton structure.

4, as claim 1 or 2 or 3 described great power LED shot-lights, it is characterized in that: described lens (50) are arranged on the lens pressing plate (80) corresponding to the position of led chip (304).

5, great power LED shot-light as claimed in claim 1 is characterized in that: described led light source (30) is close to and is provided with a radiator (60).

6, great power LED shot-light as claimed in claim 5 is characterized in that: be provided with a thermal conductive silicon rubber cushion (70) between described led light source (30) and the described radiator (60).

7, great power LED shot-light as claimed in claim 6 is characterized in that: described radiator (60) is an aluminium alloy heat radiator.

8, great power LED shot-light as claimed in claim 1 is characterized in that: the torsion spring (90) of a spring arm (900) towards this lamp body (10) front end respectively installed in the two sides of described lamp body (10).

9, great power LED shot-light as claimed in claim 1 is characterized in that: described lamp body (10) includes the back shroud (104) that lampshade plate (102) and that a heat-dissipating casing (100), is arranged at this heat-dissipating casing (100) front end is arranged at this heat-dissipating casing (100) rear end.

10, great power LED shot-light as claimed in claim 9 is characterized in that: be formed with louvre (106) on the described heat-dissipating casing (100).