CN201368384Y

CN201368384Y - LED underground lamp

Info

Publication number: CN201368384Y
Application number: CNU200920050206XU
Authority: CN
Inventors: 陈鸿蛟
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-15
Filing date: 2009-01-15
Publication date: 2009-12-23
Anticipated expiration: 2019-01-15

Abstract

An LED underground lamp comprises a lamp body and a light-emitting component, wherein the light-emitting component comprises an LED and is installed in the lamp body; a piece of light transmitting glass and a lamp cover are installed at the front end of the lamp body; a step is arranged in the lamp body; the lamp body is divided into two cavities which are separately used for accommodating the light-emitting component and an electronic driving component; the light-emitting component is installed on each step surface; and radiating fins are distributed on the bottom parts of the step surfaces. The utility model has the advantages as follows: 1, the lamp body is divided into two layers, the upper layer has a leak tight structure, the radiating fins are arranged at the lower part, intense convection of air is ensured between the internal and the external through an air inlet port and the air outlet hole, the heat-sinking capability is strong, and the power handling is increased exponentially, so that the high-power lighting LED is applicable to trees and exterior walls; 2, two working procedures of installation are simplified to be one procedure of fixing the lamp body, so that the control right for lamp cover water repellent is transferred from an installation electrician to a factory assembly, and human accidents occurring during water repellent are avoided; and 3, no screw head is exposed outside the lamp cover, thereby beautifying the appearance.

Description

A kind of LED underground lamp

Technical field

The utility model relates to a kind of light fixture, specifically a kind of LED underground lamp.

Background technology

Design feature at existing LED underground lamp is: LED is installed on the single horizontal plane, not have the pore that is beneficial to the cross-ventilation heat radiation is set, and revealing on the light cover has screw terminal, uses to exist when installing lamp body is fixed on the built-in fitting and fixing light cover two procedures.

The shortcoming of this structure is: though the air in the built-in fitting communicates with the external world by small gap, water can enter, but air can't form convection current, and heat-sinking capability is poor, power can't satisfy the demands, and makes existing LED underground lamp can't be used for the powerful illumination of needs such as trees or exterior wall and uses.Because use is equipped with two procedures, then fixedly operation is normal owing to installation electrician carelessness makes waterproof can not get control for one protecgulum in addition.

The utility model content

Technical problem to be solved in the utility model is the defective that overcomes prior art, and a kind of good heat dissipation effect, LED underground lamp easy for installation are provided.

The utility model is achieved through the following technical solutions:

A kind of LED underground lamp, comprise lamp body and be installed on the luminescence component that comprises LED in the lamp body, at the lamp body front end transparent glass and light cover are installed, in lamp body, be provided with the step that has difference in height each other, step is divided into lamp body two cavitys that hold luminescence component and electric drive parts respectively, luminescence component is installed on each step surface, is distributed with fin in the step surface bottom.

As improvement to such scheme, between lamp body front end face and transparent glass, be lined with waterproof apron, between step surface, lamp body and the transparent glass seal chamber.

Above-mentioned luminescence component comprises the aluminium base of fixed L ED, and aluminium base directly is close on the step surface, is provided with optical lens in LED the place ahead, and optical lens is fixed on the aluminium base.

As further improvement of these options, be provided with air admission hole in lamp body bottom, the lamp body end face be provided with the step lower cavity together with venthole, the venthole height is higher than the lamp body end face, light cover is covered in the venthole top.Light cover is fixed on the lamp body by screw, is provided with the screw-threaded counterbore that is directed downwards in the light cover bottom surface, and screw passes lamp body from bottom to top and is fixed in the screw-threaded counterbore.

As the further improvement to such scheme, above-mentioned electric drive parts pass the step bottom with the lead that is connected of luminescence component, and interspersed lead place is provided with the waterproof plug at step.The electric drive parts that adopted are waterproof sealing structure, are fixed in the lamp body inner bottom part.

As further improving, described lamp body is fixed in one and directly is embedded in the underground built-in fitting again, and lamp body is fixed in the built-in fitting by screw.

Prior art is compared relatively, the utlity model has following advantage:

1. lamp body is divided into two-layerly, top is divided into hermetically-sealed construction, and the lower part is provided with fin, and guaranteed that by air admission hole and venthole inner air forms strong convection current with outside, heat-sinking capability is strong, bears power level increase at double, and the LED application of high-power illuminations such as trees and exterior wall is become a reality;

2. use installation to be kept to and have only fixed lamp body one procedure, make light cover waterproof control change factory's assembling control into, avoid waterproof human accident to occur by the electrician is installed by two procedures;

3. light cover does not expose screw terminal, helps outward appearance.

Description of drawings

Accompanying drawing 1 is the utility model embodiment decomposing state structural representation;

Accompanying drawing 2 is present embodiment one a vertical section structure schematic diagram;

Accompanying drawing 3 is another vertical section structure schematic diagram of present embodiment

The specific embodiment

Understanding for the ease of those skilled in the art describes in further detail the utility model below in conjunction with the drawings and specific embodiments.

Shown in accompanying drawing 1～3, the LED underground lamp that this programme disclosed comprises built-in fitting 8, is fixed with lamp body 1 by screw in built-in fitting 8, and luminescence component 2 and electric drive parts 9 are installed in the lamp body 1, at lamp body 1 front end transparent glass 3 and light cover 4 is installed.Built-in fitting 8 is embedded in the ground, is used to isolate lamp body 1 and extraneous earth.Be provided with the step 11 that has difference in height each other in lamp body 1, step 11 is divided into two cavitys that hold luminescence component 2 and electric drive parts 9 respectively with lamp body 1, and luminescence component 2 is installed on each step surface, and is distributed with fin 15 in the step surface bottom.The assembly 2 of giving out light comprises the aluminium base 21 of LED22 and fixed L ED22, and aluminium base 21 directly is close on the step surface, in order to have good translucent effect, is provided with optical lens 23 in LED22 the place ahead, and optical lens 23 is fixed on the aluminium base 21 equally.

Between lamp body 1 front end face and transparent glass 3, be lined with waterproof apron 6, be seal chamber between step surface, lamp body 1 and the transparent glass 3, simultaneously, electric drive parts 9 pass step 11 bottoms with the lead that is connected of

luminescence component

2,11 interspersed lead places are provided with waterproof plug 7 at step, and anti-sealing enters step 11 tops.And electric drive parts 9 are waterproof sealing structure also, are fixed in lamp body 1 inner bottom part.

Dispel the heat for the ease of circulation of air, be provided with air admission hole 12 in lamp body 1 bottom, lamp body 1 end face be provided with step 11 lower cavity together with venthole 13, venthole 13 highly is higher than lamp body 1 end face, light cover 4 is covered in venthole 13 tops, light cover 4 is fixed on the lamp body 1 by screw, is provided with the screw-threaded counterbore that is directed downwards in light cover 4 bottom surfaces, and screw passes lamp body 1 from bottom to top and is fixed in the screw-threaded counterbore.

Which floor the LED22 of this programme divides be installed on the step surface, is distributed with many fin 15 below the step, and lamp body 1 Lower Half forms a tilted conical cavity.Venthole 13 is positioned at waterproof adhesive tape 6 outsides, and venthole 13 tops are apparently higher than lamp body 1 end face, reduces water and enters, and forms cross-ventilations by air admission hole 12 and venthole 13, is more conducive to heat radiation.Light cover 4 holding screws are installed from bottom to top, and screw terminal is positioned at lamp body 1 edge lower part, has guaranteed the complete of whole light fixture outer surface.

In addition, fixedly the step surface of luminescence component 2 can be horizontal plane or inclined-plane, and it is vertical or oblique that the projection light direction can be selected, and radiation response is better.

What need further specify is, more than is described as the utility model preferred embodiment, and under the prerequisite that does not depart from the utility model design, any conspicuous modification to the utility model carries out all should be included within the technical conceive of the present utility model.

Claims

1. LED underground lamp, comprise lamp body (1) and be installed on the luminescence component (2) that comprises LED (22) in the lamp body, at the lamp body front end transparent glass (3) and light cover (4) are installed, it is characterized in that: in lamp body, be provided with the step (11) that has difference in height each other, step is divided into lamp body two cavitys that hold luminescence component and electric drive parts respectively, luminescence component is installed on each step surface, is distributed with fin (15) in the step surface bottom.

2. LED underground lamp according to claim 1 is characterized in that: being lined with waterproof apron (6) between lamp body front end face and transparent glass, is seal chamber between step surface, lamp body and the transparent glass.

3. LED underground lamp according to claim 1, it is characterized in that: described luminescence component comprises the aluminium base (21) of fixed L ED, aluminium base directly is close on the step surface, is provided with optical lens (23) in LED the place ahead, and optical lens is fixed on the aluminium base.

4. LED underground lamp according to claim 2, it is characterized in that: be provided with air admission hole (12) in the lamp body bottom, the lamp body end face be provided with the step lower cavity together with venthole (13), the venthole height is higher than the lamp body end face, light cover is covered in venthole top.

5. LED underground lamp according to claim 4 is characterized in that: light cover is fixed on the lamp body by screw, is provided with the screw-threaded counterbore that is directed downwards in the light cover bottom surface, and screw passes lamp body from bottom to top and is fixed in the screw-threaded counterbore.

6. LED underground lamp according to claim 5 is characterized in that: described electric drive parts pass the step bottom with the lead that is connected of luminescence component, and interspersed lead place is provided with waterproof plug (7) at step.

7. LED underground lamp according to claim 6 is characterized in that: described electric drive parts are waterproof sealing structure, are fixed in the lamp body inner bottom part.

8. according to each described LED underground lamp in the claim 1～7, it is characterized in that: described lamp body is fixed in one and directly is embedded in the underground built-in fitting (8), and lamp body is fixed in the built-in fitting by screw.