CN103090224B - Light-emitting diode lamp and lighting method based on light-emitting diode lamp - Google Patents

Abstract

The invention discloses a light-emitting diode lamp and a light-emitting method based on the light-emitting diode lamp. The light emitting diode lamp includes: the LED lamp comprises a lamp cap, a light outlet cover, a heat radiation body, an LED and an LED substrate, wherein the number of the light outlet cover and the heat radiation body is more than two, the light outlet cover and the heat radiation body are hollow semicircular pipes, and the semicircular pipe-shaped light outlet cover and the semicircular pipe-shaped heat radiation body are bonded through buckling positions to form a circular pipe; the light outlet cover is positioned on the outer side of the light-emitting diode lamp, and the heat radiation body is positioned on the inner side of the light-emitting diode lamp; the two ends of the light outgoing cover and the heat radiation body are respectively crossed, the bottom end of the light outgoing cover is accommodated in the lamp holder, and the top ends of the light outgoing cover and the heat radiation body are fixed together through a locking cap; the light-emitting diode substrate is fixed in the hollow round tube along the radial direction of the round tube; the light emitting diodes are uniformly arranged on the light emitting diode substrate along the radial direction of the circular tube and face one side of the light outlet cover. By applying the invention, the light-emitting quality can be improved.

Description

Light-emitting diode lamp and lighting method based on light-emitting diode lamp

technical field

The invention relates to light emitting diode (LED, Light Emitting Diode) technology, in particular to a multi-faceted omnidirectional light emitting diode lamp and a lighting method based on the light emitting diode lamp.

Background technique

Liquid Crystal Display (LCD, Liquid Crystal Display) itself is a non-luminous display element, and it is necessary to set a light source on the LCD panel to achieve the effect of light emission and display. In the prior art, a backlight unit (BLU, Back light unit) light bar is an optical component that provides a back light source for an LCD. Usually, BLU receives the light source provided by LED, cold cathode fluorescent lamp (CCFL, Cold Cathode Fluorescent Lamp), or electroluminescent element (EL, Electro Luminescence), and reflects and concentrates the light to form a light source.

With the wide application of LED technology, LED lamps have begun to be widely used in indoor lighting. However, the existing LED lamps mainly use reflective devices and light guide devices to distribute light, and the light loss is relatively large; at the same time, the position of the radiator is occupied by the reflective devices and light guide devices, so the heat dissipation efficiency is low and the power of the light source is relatively small; moreover, using A single light-emitting surface faces the outgoing light, and the light-emitting angle is small, resulting in uneven light emission and low light quality, which affects the user's comfort experience.

Contents of the invention

Embodiments of the present invention provide a light-emitting diode lamp, which improves the quality of light emission.

The embodiment of the present invention also provides a lighting method based on a light-emitting diode lamp, which improves the lighting quality.

According to one aspect of the present invention, a light-emitting diode lamp is provided, including: a lamp holder, a light-emitting cover, a radiator, a light-emitting diode, and a light-emitting diode substrate, wherein,

The number of the light emitting cover and the heat sink is at least two, which are hollow semicircular tubes, and the semicircular tubular light emitting cover and the semicircular tubular heat sink are bonded to form a round tube;

The light emitting cover is located outside the LED lamp, and the radiator is located inside the LED lamp;

The two ends of the light emitting cover and the heat sink meet respectively, the bottom end is accommodated in the lamp holder, and the top end is fixed together by a locking cap;

The light-emitting diode substrate is fixed in the hollow circular tube along the radial direction of the circular tube;

The light-emitting diodes are evenly arranged on the side of the light-emitting diode substrate facing the light output cover along the radial direction of the circular tube.

Preferably, the number of the light outlet cover and the heat sink is three.

Preferably, the lamp cap is an E27 lamp cap.

Preferably, the three light outlet covers are evenly distributed in space to form the outer contour of the LED lamp.

Preferably, the outer contour surface of the light exit mask is a light exit surface and adopts a curved structure.

Preferably, the curved structure is an arc, and the light-emitting surface protrudes outward in an arc.

Preferably, the light-emitting diode substrate is a soft glass fiber substrate, which is arranged and fixed in the radiator.

Preferably, the LED substrate adopts a soft glass fiber substrate smaller than 0.2mm.

Preferably, the light-emitting diodes are patch-type low-power light-emitting diodes that emit light at a large angle.

Preferably, the light outlet cover is made of translucent plastic material with diffusion additives.

Preferably, the radiator is made of aluminum alloy or zinc alloy, and white heat dissipation paint is sprayed on the inner and outer contours of the radiator.

Preferably, a drive circuit board for driving light emitting diodes is further provided inside the lamp head, and the drive circuit board is connected to the light emitting diodes mounted on the light emitting diode substrate through flexible wires.

According to another aspect of the present invention, a lighting method based on a light-emitting diode lamp is provided, the method comprising:

At least two hollow semicircular tubular light emitting covers and heat sinks are pre-set, so that the semicircular tubular light emitting covers and the semicircular tubular heat sinks are bonded to form a round tube;

The light emitting cover is arranged outside the light-emitting diode lamp, and the heat sink is located inside the light-emitting diode lamp. The two ends of the light emitting cover and the heat sink meet respectively, the bottom end is accommodated in the lamp head, and the top end is fixed together by a locking cap;

Along the radial direction of the circular tube, the light-emitting diode substrate is arranged and fixed in the hollow circular tube; along the radial direction of the circular tube, the light-emitting diode is arranged and evenly arranged on the side of the light-emitting diode substrate facing the light-emitting mask;

Combining the lamp holder, light emitting cover, heat sink, light emitting diode and light emitting diode substrate into a light emitting diode lamp;

The light-emitting diodes uniformly arranged in each circular tube are energized, and the light-emitting diodes emit light, dissipate heat through the radiator, and emit light through the light-emitting cover.

Wherein, before the lamp cap, the light-emitting cover, the radiator, the light-emitting diode and the light-emitting diode substrate are combined into a light-emitting diode lamp, the method further includes:

A driving circuit board for driving the light-emitting diodes is arranged inside the lamp head, and the driving circuit board is connected with the light-emitting diodes mounted on the light-emitting diode substrate through flexible wires.

Wherein, the outer contour surface of the light-emitting mask is a light-emitting surface, which adopts an arc structure, and the light-emitting surface protrudes outward in an arc shape.

It can be seen from the above technical solutions that the embodiments of the present invention provide an LED lamp and a lighting method based on the LED lamp. The LED lamp includes: a lamp holder, a light outlet cover, a heat sink, a LED, and a LED substrate, wherein the There are more than two light emitting covers and radiators, which are hollow semicircular tubes, and the semicircular tubular light emitting covers and semicircular tubular radiators are bonded to form a round tube through buckling positions; the light emitting covers are located outside the LED lamps , the heat sink is located inside the light-emitting diode lamp; the two ends of the light-emitting cover and the heat sink meet respectively, the bottom end is accommodated in the lamp head, and the top end is fixed together by a locking cap; the light-emitting diode substrate is arranged along the radial direction of the circular tube , fixed in a hollow circular tube; the light-emitting diodes are evenly arranged on the side of the light-emitting diode substrate facing the light-emitting cover along the radial direction of the circular tube.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other embodiments and their drawings according to the embodiments shown in these drawings.

Fig. 1 is a schematic diagram of the front structure of a light-emitting diode lamp according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional structural diagram of an embodiment of the present invention taken along AA in FIG. 1 .

Fig. 3 is a schematic diagram of a three-dimensional structure of a light-emitting diode lamp according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of the spatial positions of the photomask and the radiator according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of the installation position of the LED in the LED lamp according to the embodiment of the present invention.

Fig. 6 is a schematic diagram of a semi-sectional structure of a lamp cap according to an embodiment of the present invention.

FIG. 7 is a schematic flowchart of a light emitting method based on a light emitting diode lamp according to an embodiment of the present invention.

Detailed ways

The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Existing LED lamps use a single light-emitting surface to emit light, and the light-emitting angle is small, resulting in uneven light emission and low light quality, thereby affecting the user's comfort experience.

According to the requirements of Energy Star and some users who are accustomed to incandescent lighting, the large-angle light emission method is very important, which can make the light even and high in quality, thereby improving the comfort experience of users.

In the embodiment of the present invention, a multi-faceted omnidirectional light-emitting LED lamp for indoor lighting is proposed, with multiple uniform light-emitting surfaces, so that the light-emitting angle is large, the light-emitting efficiency is high, and the luminous quality is high; at the same time, in order to reflect the LED lamp As some unique advantages of new light sources, the overall shape of LED lamps is in the shape of petals, and the distribution of each petal is uniform, which can meet the latest needs of the market.

Fig. 1 is a schematic diagram of the front structure of a light-emitting diode lamp according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional structural diagram of an embodiment of the present invention taken along AA in FIG. 1 .

Fig. 3 is a schematic diagram of a three-dimensional structure of a light-emitting diode lamp according to an embodiment of the present invention.

Referring to Fig. 1 to Fig. 3, the light emitting diode lamp includes: a lamp cap 101, a light outlet cover 102, a radiator 103, a light emitting diode 104 and a light emitting diode substrate 105, wherein,

The number of the light emitting cover 102 and the heat sink 103 is more than two, which are hollow semicircular tubes, and the semicircular tubular light emitting cover 102 and the semicircular tubular heat sink 103 are bonded through the buckle position to form a round tube;

The light emitting cover 102 is located outside the LED lamp, and the radiator 103 is located inside the LED lamp;

The two ends of the light emitting cover 102 and the radiator 103 meet respectively, the bottom end is accommodated in the lamp holder 101, and the top end is fixed together by a locking cap;

The LED substrate 105 is fixed in the hollow circular tube along the radial direction of the circular tube;

The light emitting diodes 104 are evenly arranged on the side of the light emitting diode substrate 105 facing the light output cover 102 along the radial direction of the circular tube.

in,

The lamp cap can be a general E27 lamp cap.

Preferably, the number of light emitting covers 102 and heat sinks 103 is three, of course, in practical applications, the number of light emitting covers 102 and heat sinks 103 can also be set to 2, 4 or other values. In the embodiment of the present invention, the number of the light emitting cover 102 and the number of heat sinks 103 are both 3 for illustration.

The light emitting cover 102 and the radiator 103 are bonded to form a round tube, and the two ends of the three round tubes meet respectively, and the top of the round tube is the top of the LED lamp, which is fixed together by a locking cap; , that is, through the lamp holder 101 to splice together.

FIG. 4 is a schematic diagram of the spatial positions of the photomask and the radiator according to the embodiment of the present invention. Referring to FIG. 4 , three light emitting covers 102 are evenly distributed in space, that is, forming an angle of 120 degrees with each other to form the outer contour of the LED lamp. The outer contour surface of the light emitting cover 102 is the light emitting surface, which adopts a curved structure. In the embodiment of the present invention, the LED lamp includes three light-emitting surfaces, and the outer contour surface of each light-emitting cover 102 corresponds to a light-emitting surface. Preferably, each light-emitting surface protrudes outward in an arc shape, that is, the curve structure is arc. Therefore, the light emitted by the LED can be diverged in 360 degrees, so that the light emitting effect of the traditional incandescent light bulb can be achieved.

In practical applications, LED lamps generate a large amount of heat during the working process. Therefore, the generated heat needs to be dissipated to ensure the stable and normal operation of the LED lamps. In the embodiment of the present invention, referring to FIG. 2 , the sectional surface of the light emitting cover 102 is a semicircular ring, and the sectional surface of the heat sink is the other half of the circular ring. The light emitting cover 102 and the radiating body 103 pass through The buckle is glued for strength.

Preferably, the light emitting diode substrate 105 is a soft glass fiber substrate, arranged and fixed in the radiator 103, and the LED 104 is welded on the soft glass fiber substrate.

Preferably, the outer contour surface of the radiator also adopts a curved structure. In order to fit the curved structure of the radiator, in the embodiment of the present invention, the LED substrate 105 can adopt a soft glass fiber substrate smaller than 0.2 mm.

Fig. 5 is a schematic diagram of the installation position of the LED in the LED lamp according to the embodiment of the present invention. Referring to Fig. 5, LEDs are mounted on a soft glass fiber substrate at equal intervals. Preferably, the LED adopts a patch-type low-power LED (less than 0.1W) that emits light at a large angle. In this way, by distributing the LEDs evenly in the LED lamp, the LED lamp can emit light evenly.

Preferably, the light outlet cover 102 is made of a translucent plastic material with a diffusion additive, and the light transmittance is greater than 85%. For example, the material that can be used is polymethyl methacrylate (PMMA) or polycarbonate (PC), that is The light output cover 102 is made of plexiglass or bulletproof glass glue, so that higher light output efficiency and good light output uniformity can be achieved.

Preferably, the heat sink 103 is made of aluminum alloy or zinc alloy, and the inner and outer contours of the heat sink 103 are sprayed with white heat dissipation paint to improve heat dissipation efficiency. At the same time, it can also make the heat sink beautiful and make the LED lamps The overall appearance is more consistent.

Preferably, the light emitting cover 102 and the radiator 103 form a sealed space.

Fig. 6 is a schematic diagram of a semi-sectional structure of a lamp cap according to an embodiment of the present invention. Referring to FIG. 6 , the drive circuit board 601 for driving the LED 104 is arranged inside the lamp cap 101 , and the drive circuit board 601 is connected to the LED 104 independently installed on the soft glass fiber substrate through flexible wires 602 , thereby providing the voltage required for the LED 104 to work.

In the embodiment of the present invention, the soft glass fiber substrate may be a flexible circuit board, and the SMD LED is welded on the flexible circuit board, and then the flexible circuit board is fixed in the heat sink with thermally conductive adhesive, and then the light emitting cover and the heat sink The body is bonded through the buckle position, the top of the light emitting cover and the heat sink is fixed by the locking cap, and the bottom end is welded with the circuit board after the soft wire is accommodated in the lamp holder and connected to the lamp holder. Power-on test.

It can be seen from the above that the light-emitting diode lamps of the embodiments of the present invention are different from the existing cylindrical or pear-shaped LED lamps similar to incandescent lamps in that the LED lamps are formed by splicing three circular tubes including a light-emitting cover and a radiator. It has a unique shape and realizes the uniqueness of the overall appearance of the LED lamp; furthermore, the circular tube adopts two semicircular structures, which dissipate heat toward the radiator inside the LED lamp and emit light toward the light-emitting cover outside the LED lamp, reducing light loss and improving The heat dissipation area is increased, and the heat dissipation efficiency is improved; moreover, the driving circuit board is built into the lamp head, and multiple LEDs are evenly welded on the flexible glass fiber substrate, which improves the power of the light source. , luminous uniformity, high luminous quality, light output characteristics similar to incandescent lamps, and omnidirectional lighting, thereby improving the user's comfort experience.

FIG. 7 is a schematic flowchart of a light emitting method based on a light emitting diode lamp according to an embodiment of the present invention. Referring to Figure 7, the method includes:

Step 701, pre-arranging more than two hollow semicircular tubular light emitting covers and radiators, the semicircular tubular light emitting covers and semicircular tubular radiators are bonded to form a round tube through buckling positions;

In this step, the number of photomasks and radiators are both three.

Step 702, setting the light outlet cover to be located outside the LED lamp, and the radiator to be located inside the LED lamp, the two ends of the light outlet cover and the radiator meet respectively, the bottom end is accommodated in the lamp holder, and the top end is fixed together by a locking cap;

In this step, the three light-emitting masks are evenly distributed in the space to form the outer contour of the light-emitting diode lamp.

Preferably, the outer contour surface of the light exit mask is a light exit surface and adopts a curved structure.

Preferably, the curved structure is an arc, and the light-emitting surface protrudes outward in an arc shape.

In practical applications, the light exit mask can be made of translucent plastic material with diffusion additives.

The radiator is made of aluminum alloy or zinc alloy, and the inner and outer contours of the radiator are sprayed with white heat dissipation paint.

Step 703, arrange the light-emitting diode substrate along the radial direction of the circular tube and fix it in the hollow circular tube, and arrange the light-emitting diodes along the radial direction of the circular tube and evenly arrange them on the side of the light-emitting diode substrate facing the light emitting cover;

In this step, the light-emitting diode substrate adopts a soft glass fiber substrate, and is arranged and fixed in the radiator.

Preferably, the light-emitting diode substrate adopts a soft glass fiber substrate smaller than 0.2 mm.

In practical applications, the light-emitting diode can be a patch-type low-power light-emitting diode that emits light at a large angle.

Step 704, combining the lamp holder, the light emitting cover, the radiator, the LED and the LED substrate to form a LED lamp;

Preferably, before the lamp cap, the light outlet cover, the radiator, the LED and the LED substrate are combined into a LED lamp, the method may further include:

A driving circuit board for driving the light-emitting diodes is arranged inside the lamp head, and the driving circuit board is connected with the light-emitting diodes mounted on the light-emitting diode substrate through flexible wires.

Step 705, energize the light emitting diodes uniformly arranged in each circular tube, the light emitting diodes emit light, dissipate heat through the radiator, and emit light through the light emitting cover.

In this step, the LED lamp is spliced by three round tubes including a light emitting cover and a heat sink. The round tube adopts a two-half-circle structure, which dissipates heat through the heat sink inside the LED lamp, and emits light toward the light emitting cover outside the LED lamp. Light loss is reduced, heat dissipation area is increased, and heat dissipation efficiency is improved; the drive circuit board is built into the lamp head, which simplifies the structure; multiple LEDs are evenly welded on the flexible glass fiber substrate, which improves the power of the light source; multiple uniformly distributed The light output faces the outgoing light, the light output angle is large, the light is uniform, the light quality is high, and it has omnidirectional lighting.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies, the present invention also includes these modifications and variations.

Claims (6)

1. An led lamp, comprising: a lamp cap, a light-emitting cover, a heat sink, a light-emitting diode and a light-emitting diode substrate, wherein,

the number of the light outlet covers and the number of the heat radiators are 3, the light outlet covers are hollow semicircular pipes, and the semicircular pipe-shaped light outlet covers and the semicircular pipe-shaped heat radiators are bonded through buckling positions to form circular pipes; the heat radiator is made of aluminum alloy or zinc alloy, and white heat-radiating paint is sprayed on the inner contour surface and the outer contour surface of the heat radiator;

the light outlet cover is positioned on the outer side of the light-emitting diode lamp, and the heat radiation body is positioned on the inner side of the light-emitting diode lamp; the three light outgoing covers are uniformly distributed in the space to form an included angle of 120 degrees with each other to form the outer contour of the light-emitting diode lamp, the outer contour surface of each light outgoing cover is a light outgoing surface, and the light outgoing surface adopts a curve structure which is arc-shaped and protrudes outwards, so that light rays emitted by the light-emitting diode can be diffused for 360 degrees;

the two ends of the light outgoing cover and the two ends of the heat radiation body are respectively crossed, the bottom end of the light outgoing cover is accommodated in the lamp holder, the top ends of the light outgoing cover and the heat radiation body are fixed together through a locking cap, the locking cap is arranged on the back side of the light outgoing cover, and the three light outgoing covers form three light outgoing surfaces with included angles of 120 degrees at the top end of the lamp;

the light-emitting diode substrate is fixed in the hollow round tube along the radial direction of the round tube, the light-emitting diode substrate adopts a flexible soft glass fiber substrate, the flexible soft glass fiber substrate is arranged and fixed in the heat radiation body through heat conduction glue, and the light-emitting diode substrate adopts a soft glass fiber substrate with the thickness less than 0.2 mm; the light emitting diodes are uniformly arranged on the light emitting diode substrate along the radial direction of the circular tube and face to one side of the light outlet cover, and the light emitting diodes adopt practical large-angle light outlet patch type low-power light emitting diodes.

2. The led lamp of claim 1 wherein the base is an E27 base.

3. The led lamp of claim 1 wherein the light extraction mask is made of a translucent plastic material with a diffusing additive.

4. The LED lamp as claimed in any one of claims 1 to 3, wherein a driving circuit board for driving the LED is further disposed inside the lamp cap, and the driving circuit board is connected to the LED mounted on the LED substrate via flexible wires.

5. A method of emitting light based on a light emitting diode light fixture, the method comprising:

the method comprises the following steps that three hollow semicircular tubular light outlet covers and a heat radiation body are arranged in advance, wherein the semicircular tubular light outlet covers and the semicircular tubular heat radiation body are bonded through buckling positions to form a circular tube; the heat radiator is made of aluminum alloy or zinc alloy, and white heat-radiating paint is sprayed on the inner contour surface and the outer contour surface of the heat radiator;

the light emitting covers are arranged on the outer side of the light emitting diode lamp, the heat radiation body is arranged on the inner side of the light emitting diode lamp, the three light emitting covers are uniformly distributed in space to form an included angle of 120 degrees, the outer outline of the light emitting diode lamp is formed, the outer outline surface of the light emitting covers is a light emitting surface, and the light emitting surface adopts a curve structure which is arc-shaped and protrudes outwards, so that light rays emitted by the light emitting diode can be diffused for 360 degrees; the two ends of the light outgoing cover and the two ends of the heat radiation body are respectively crossed, the bottom end of the light outgoing cover is accommodated in the lamp holder, the top ends of the light outgoing cover and the heat radiation body are fixed together through a locking cap, the locking cap is arranged on the back side of the light outgoing cover, and the three light outgoing covers form three light outgoing surfaces with included angles of 120 degrees at the top end of the lamp;

the LED substrate is arranged along the radial direction of the round tube and fixed in the hollow round tube, the LED substrate is a flexible soft glass fiber substrate, the flexible soft glass fiber substrate is arranged in the radiator through heat conducting glue and fixed, and the LED substrate is a soft glass fiber substrate with the thickness less than 0.2 mm; arranging light emitting diodes along the radial direction of the circular tube and uniformly arranging the light emitting diodes on the light emitting diode substrate towards one side of the light outlet cover, wherein the light emitting diodes adopt practical large-angle light emitting patch type low-power light emitting diodes;

the lamp holder, the light outlet cover, the heat radiator, the light emitting diode and the light emitting diode substrate form a light emitting diode lamp;

the light emitting diodes uniformly arranged in the round tubes are electrified, emit light, radiate the heat through the heat radiation body and emit light through the light emitting cover.

6. The method of claim 5, wherein before the lamp head, the light-emitting cover, the heat sink, the light-emitting diode, and the light-emitting diode substrate are combined into the light-emitting diode lamp, the method further comprises:

and a driving circuit board for driving the light emitting diode is arranged in the lamp holder, and the driving circuit board is connected with the light emitting diode arranged on the light emitting diode substrate through a flexible lead.