CN203147317U

CN203147317U - LED low-voltage bulb

Info

Publication number: CN203147317U
Application number: CN2012203417681U
Authority: CN
Inventors: 袁明
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-06
Filing date: 2012-07-06
Publication date: 2013-08-21
Anticipated expiration: 2022-07-06
Also published as: CN103383072A

Abstract

The utility model discloses an LED low- pressure bulb, comprising a lamp holder (1), a lamp body and a support strip (8). An LED luminescent plate (3) is disposed at the upper part of the lamp body near the lamp holder (1). A DC constant voltage power supply device (6) is disposed between the LED luminescent plate (3) and the LED luminescent plate (3). An inlet wire is connected to the lamp holder (1) and an outlet wire is connected to the LED luminescent plate (3). When the LED low-voltage bulb works, the lamp holder is connected to a 6V/12V/24V/36V low-voltage DC safety voltage. A concave lens (4) is fixed to the lamp body (2) and below the LED luminescent plate (3). A frosted lampshade (5) is fixedly disposed on the lamp body (2) and below the concave lens (4). The area of a heat-radiating window (7) on the lamp body (2) is equal to or bigger than the area of a sealing part having the support strip (8). The LED low-pressure bulb is advantageous in that the back side of the LED luminescent plate (3) is made in dark color, and thereby heat radiation is reinforced, and an aluminum radiator can be saved and cost can be reduced; the use of low-voltage power is safe, illumination effect is good, production cost is low and popularization is facilitated.

Description

A kind of LED low voltage bulb

Technical field

The utility model relates to a kind of LED low voltage bulb.

Background technology

Though existing LED lighting bulb has the advantage of high-efficient energy-saving environment friendly longevity in the market, but all be that civil power alternating current 220V (some country is 110 volts) directly taps into lamp holder, change to luminous plaque through the constant current charger and to power, safety standard determines that lamp body thermal window Hen is little, weak effect have to be used aluminium radiator, but the cost height, the illuminating effect that causes of the optical characteristics of the narrow angle of LED emission light height boundling is not good in addition, thereby has increased the difficulty that the LED illumination is promoted.

The utility model content

The purpose of this utility model provides a kind of use low-voltage direct safe voltage power supply, and illuminating effect is better, and production cost is low, is beneficial to the LED low voltage bulb of popularization.

For achieving the above object, LED low voltage bulb of the present utility model includes lamp holder and lamp body, lamp holder and lamp body combine as a whole by support bar, the LED luminous plaque is installed in lamp body top near the position of lamp holder, direct current constant current charger places between LED luminous plaque and the lamp holder, its inlet wire is connected with lamp holder, and outlet is connected with the LED luminous plaque, and lamp holder connect 6V or 12V or 24V or 36V low-voltage direct safe voltage when described LED low voltage bulb was worked.

Described LED low voltage bulb is equipped with a circle below the LED luminous plaque concavees lens play divergent rays, cooperate concavees lens to select concavees lens to the distance of LED luminous plaque, make the maximum deviation of divergent rays in the scope at concavees lens normal 45～85 ° of angles.

The above and below of LED luminous plaque is distributed with thermal window on the described LED low voltage bulb lamp body, and the area of thermal window is equal to or greater than the area of the enclosure portion that contains support bar.

Described LED low voltage bulb, dark color is made at the back side of LED luminous plaque.

Described LED low voltage bulb is having a frosted lampshade to be installed on the lamp body below the concavees lens.

Because LED luminous plaque below is equipped with adaptive concavees lens on the lamp body of LED low voltage bulb of the present utility model, boundling light at the narrow angle of LED lamp height is similar to parallel rays, concavees lens can be effectively disperse around the concentrated light alignment normal with the LED lamp and the maximum deviation of divergent rays in the scope at concavees lens normal 45～85 ° of angles, add that the frosted lampshade of installing on the lamp body of concavees lens below makes light more even through diffuse scattering, good illumination effect; Lamp holder connects 6V or 12V or 24V or 36V low-voltage direct safe voltage when working owing to LED low voltage bulb of the present utility model on the other hand, so the area of thermal window allows to be equal to or greater than the area of enclosure portion on the lamp body, the above and below of LED luminous plaque is distributed with thermal window in addition, radiating condition is greatly improved, dark color is made at the back side that adds the LED luminous plaque of LED low voltage bulb of the present utility model, strengthened the luminous plaque heat radiation greatly, thereby can reduce or save aluminium radiator fully greatly reduces production cost, so just realized the power supply of use low-voltage direct safe voltage, good illumination effect, the low purpose that is beneficial to popularization of production cost.

Description of drawings

Below in conjunction with drawings and Examples LED low voltage bulb of the present utility model is further described.

Fig. 1 is the front view of the utility model LED low voltage bulb

Fig. 2 is the middle cutaway view of the utility model LED low voltage bulb

1, lamp holder 2, lamp body 3, LED luminous plaque 4, concavees lens 5, frosted lampshade 6, direct current constant current charger 7, thermal window 8, lamp body support bar

The specific embodiment

As shown in the figure, lamp holder 1 is one with lamp body 2 by support bar 8 secure bond, the back side of round LED luminous plaque 3 is black, be fixedly mounted on lamp body 2 tops, the circular concavees lens 4 of apolegamy are fixed on the below that is in LED luminous plaque 3 on the lamp body 2, concavees lens 4 are selected the plano-concave mirror for use, frosted lampshade 5 is fixedly mounted on the below that is in concavees lens 4 on the lamp body 2, the inlet wire of direct current constant current charger 6 connects lamp holder 1, the outlet of direct current constant current charger 6 connects LED luminous plaque 3, the above and below of LED luminous plaque 3 is distributed with thermal window 7 on the lamp body, and the area of thermal window 7 is equal to or greater than the area that lamp body contains the enclosure portion of support bar 8.

Claims

1. LED low voltage bulb, it includes lamp holder (1) and lamp body (2), lamp holder (1) and lamp body (2) combine as a whole by support bar (8), LED luminous plaque (3) is installed in lamp body top near the position of lamp holder (1), direct current constant current charger (6) places between LED luminous plaque (3) and the lamp holder (1), its inlet wire is connected with lamp holder (1), and outlet is connected with LED luminous plaque (3), it is characterized in that: lamp holder connects 6V or 12V or 24V or 36V low-voltage direct safe voltage during the work of LED low voltage bulb.

2. the described LED low voltage bulb of claim 1, it is characterized in that: the LED low voltage bulb is equipped with a circle in the below of LED luminous plaque (3) concavees lens (4) play divergent rays, cooperate concavees lens (4) to select concavees lens (4) to the distance of LED luminous plaque (3), make the maximum deviation of divergent rays in the scope at concavees lens (4) normal 45～85 ° of angles.

3. the described LED low voltage bulb of claim 1, it is characterized in that: on the lamp body of LED low voltage bulb (2), be evenly distributed with thermal window (7) and support bar (8), the area of thermal window (7) is equal to or greater than the area of the enclosure portion of support bar (8).

4. the described LED low voltage bulb of claim 1, it is characterized in that: dark color is made at the back side of LED luminous plaque (3).

5. the described LED low voltage bulb of claim 1 is characterized in that: have a frosted lampshade (5) to be installed on the lamp body in the below of concavees lens (4).