CN201935014U

CN201935014U - Light-emitting diode (LED) luminescent bar

Info

Publication number: CN201935014U
Application number: CN2011200306019U
Authority: CN
Inventors: 伍治华; 谢伊明; 林日辉; 邵小兵
Original assignee: DONGGUAN MEINENG ELECTRONICS Co Ltd
Current assignee: DONGGUAN MEINENG ELECTRONICS Co Ltd
Priority date: 2011-01-28
Filing date: 2011-01-28
Publication date: 2011-08-17
Anticipated expiration: 2021-01-28

Abstract

The utility model relates to the technology of light-emitting diode lamps, in particular to an LED luminescent bar, which comprises two printed circuit board (PCB) substrates. LED chips are sealed and packed on the front surfaces of the two PCB substrates, and the LED chips are in electric connection with PCB substrates. The backs of the two PCB substrates are pressed against each other and fixed. The two sides of the LED luminescent bar are provided with LED chips due to the structure. When the LED chips are luminous, radial light emission can be achieved and the coverage area of lights is large.

Description

A kind of LED Column being luminous

Technical field

The utility model relates to LED light fixture technology, relates in particular to a kind of LED Column being luminous.

Background technology

Because LED (Light Emitting Diode, light emitting diode) has characteristics such as long service life, energy consumption is low, energy savings is remarkable, therefore, LED has been widely used in the daily life as light source, as LED lightings such as cup lamp, shot-light, auto lamp, LED bulbs.

At present, the LED bulb generally comprises lamp holder, be installed in the lampshade at lamp holder top, be positioned at the power supply of lamp holder, be provided with the LED Column being luminous in the lampshade, power supply in LED Column being luminous and the lamp holder is electrically connected, when LED Column being luminous electrified light emitting, its light that sends can see through lampshade and shine out, the purpose that reaches illumination or decorate.But, the LED Column being luminous of LED bulb is at the PCB(printed circuit board (PCB) mostly in the prior art) the direct packaged LED of welding on the substrate, and LED all is positioned at a side of PCB substrate, cause the LED Column being luminous can only folk prescription to luminous, light coverage less (maximum 180 degree).

Summary of the invention

The purpose of this utility model be to provide at the deficiencies in the prior art a kind of can be radially luminous, LED Column being luminous that the light coverage is big.

The purpose of this utility model realizes by following technical measures: a kind of LED Column being luminous, and it includes two PCB substrates, and the front of two PCB substrates all is packaged with led chip, and led chip is electrically connected with the PCB substrate, and the back side of two PCB substrates is close to fixing mutually.

Be gripped with heat dissipation metal plate between the back side of described two PCB substrates.

Described heat dissipation metal plate is a copper sheet.

The area of described heat dissipation metal plate side is greater than the area of PCB substrate back.

The height of the led chip of described two PCB substrates equates.

Described PCB substrate is the heat-radiating aluminum plate.

The bottom of described PCB substrate is provided with the Plug Division.

Described two PCB substrates are to fix by rivet.

Described two PCB substrates are that mutual snapping is fixed.

The utility model beneficial effect is: the utility model includes two PCB substrates, the front of two PCB substrates all is packaged with led chip, led chip is electrically connected with the PCB substrate, the back side of two PCB substrates is close to fixing mutually, this structure makes both sides of the present utility model all have led chip, when led chip is luminous, can realize radially luminous, and light coverage big (can reach 360 degree).

Description of drawings

Fig. 1 is the structural representation of a kind of LED Column being luminous of the utility model embodiment 1.

Fig. 2 is the side view of a kind of LED Column being luminous of the utility model embodiment 1.

Fig. 3 is the decomposing schematic representation of a kind of LED Column being luminous of the utility model embodiment 1.

In Fig. 1, Fig. 2 and Fig. 3, include:

1---PCB substrate 11---Plug Division

12---rivet 2---led chip

3---heat dissipation metal plate.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

Embodiment 1

A kind of LED Column being luminous of the present utility model, shown in Fig. 1～3, it includes two PCB substrates 1, the front of two PCB substrates 1 all is packaged with led chip 2, be that led chip 2 directly is encapsulated on the PCB substrate 1, to reduce volume of the present utility model and weight, led chip 2 is electrically connected with PCB substrate 1, make PCB substrate 1 be led chip 2 power supplies, the back side of two PCB substrates 1 is close to fixing mutually, makes both sides of the present utility model all have led chip 2, when led chip 2 is luminous, can realize radially luminous, and light coverage big (can reach 360 degree).

Be gripped with heat dissipation metal plate 3 between the back side of two PCB substrates 1, because led chip 2 work when luminous, can produce a large amount of heats and accumulate on the PCB substrate 1, so heat dissipation metal plate 3 can be led away the heat of assembling on the PCB substrate 1.In the present embodiment, preferred heat dissipation metal plate 3 is a copper sheet, because copper sheet has the thermal conductivity advantages of higher, the heat of assembling on the PCB substrate 1 can be led away apace, and promptly radiating rate is very fast.Certainly, described heat dissipation metal plate 3 also can be made for other heat sink material, as long as it has the thermal conductivity advantages of higher.

The area of heat dissipation metal plate 3 sides is greater than the area at PCB substrate 1 back side, promptly heat dissipation metal plate 3 around protrude from PCB substrate 1 slightly, to increase heat radiation and heat-conducting area.

The height of the led chip 2 of two PCB substrates 1 equates, makes the utility model can keep sustained height luminous, forms spot light, and led chip 2 is the high-power LED chip of 1～10W, has enough brightness when making the utility model luminous.

PCB substrate 1 is the heat-radiating aluminum plate, and the bottom of PCB substrate 1 is provided with Plug Division 11, the utility model can be pegged graft be fixed in the LED bulb.

Two PCB substrates 1 are fixing by rivet 12, more particularly, rivet 12 passes two PCB substrates 1 and heat dissipation metal plate 3, thereby two PCB substrates 1 and heat dissipation metal plate 3 are locked, the back side of heat dissipation metal plate 3 and two PCB substrates 1 is closely sticked together, thereby the increase area of dissipation makes the utility model can increase by 8～10% radiating rate.

The utility model can be widely used in the various LED bulbs, make the LED bulb have characteristics such as radially luminous, that the light coverage is big, radiating rate is fast, and, LED bulb of the present utility model can form " fireworks " effect that is similar to traditional tengsten lamp, thereby make application LED bulb of the present utility model can substitute traditional tengsten lamp, the purpose that reaches illumination or decorate.

Embodiment 2

The embodiment 2 of a kind of LED Column being luminous of the present utility model, the difference of present embodiment and embodiment 1 is that two PCB substrates 1 are that mutual snapping is fixed, certainly, described two PCB substrates 1 also can adopt other fixed form, as paste fixing, as long as its fixed effect better.Other structure and the operation principle of present embodiment are identical with embodiment 1, do not repeat them here.

Should be noted that at last; above embodiment is only in order to the explanation the technical solution of the utility model; but not to the restriction of the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.

Claims

1. LED Column being luminous, it is characterized in that: it includes two PCB substrates, and the front of two PCB substrates all is packaged with led chip, and led chip is electrically connected with the PCB substrate, and the back side of two PCB substrates is close to fixing mutually.

2. LED Column being luminous according to claim 1 is characterized in that: be gripped with heat dissipation metal plate between the back side of described two PCB substrates.

3. LED Column being luminous according to claim 2 is characterized in that: described heat dissipation metal plate is a copper sheet.

4. LED Column being luminous according to claim 3 is characterized in that: the area of described heat dissipation metal plate side is greater than the area of PCB substrate back.

5. LED Column being luminous according to claim 3 is characterized in that: the height of the led chip of described two PCB substrates equates.

6. LED Column being luminous according to claim 3 is characterized in that: described PCB substrate is the heat-radiating aluminum plate.

7. LED Column being luminous according to claim 3 is characterized in that: the bottom of described PCB substrate is provided with the Plug Division.

8. according to any described LED Column being luminous of claim 2 to 7, it is characterized in that: described two PCB substrates are to fix by rivet.

9. according to any described LED Column being luminous of claim 2 to 7, it is characterized in that: described two PCB substrates are that mutual snapping is fixed.