CN203784667U - LED (light emitting diode) lamp - Google Patents

Abstract

An LED lamp relates to LED technology. The utility model comprises a lamp tube, a lamp holder and an LED lamp bar. The LED lamp bar is arranged in a bar-shaped lamp tube, and an LED drive circuit connected with the LED lamp bar is arranged in the lamp holder. The LED lamp bar is made of a transparent The substrate, the mixed paint layer coated on the upper surface of the substrate, the LED light-emitting unit arranged on the mixed paint layer, the electrodes electrically connected to the LED light-emitting unit, and fluorescent glue are composed. The fluorescent glue covers the LED light-emitting unit and the mixed paint layer. The material of the mixed paint layer is insulating glue mixed with fluorescent powder. The installation interface of the utility model is completely consistent with the energy-saving lamp, and has better versatility; the volume of the LED light bar in the lamp tube is smaller, and the raw materials are more saved.

Description

LED lamps

technical field

The utility model relates to LED technology.

Background technique

Energy-saving lamps, also known as compact fluorescent lamps (CFL lamps for short), have the advantages of high luminous efficiency, obvious energy-saving effect, long life, small size, and convenient use compared with incandescent lamps. They are more commonly used, but their luminous efficiency is not as good as that of LEDs. LED lamps for lighting are a new technology that has been developed in recent years. The interfaces of existing LED lamps are different from energy-saving lamps, and their installation and use are not as convenient as energy-saving lamps.

In the prior art, there is an LED light source bar, as shown in FIG. 1 , the packaging process is as follows: the light emitting diode chip unit 42 and the electrical conduction unit 44 are arranged on a transparent substrate 41, and the light emitting diode chip unit and the The electrical conduction unit is electrically connected to the outside; then a suitable package (fluorescent glue) is prepared according to the required light color and color temperature; the transparent protective plate 46 is combined with the transparent substrate 41 by using the adhesive unit 45, so that the transparent substrate, light emitting The diode chip unit, the electrical conduction unit, the adhesive unit and the transparent protection plate form the light board structure; finally, the packaging body (fluorescent glue) is wrapped and shaped outside the light board structure by means of potting and curing. In particular, in order to prevent blue light from leaking out, the fluorescent glue in the prior art covers the lamp panel mechanism as a whole, including the upper and lower surfaces of the transparent substrate.

The disadvantage of this technology is that the volume of the light source bar is large and the packaging process is complicated, resulting in high cost.

Utility model content

The technical problem to be solved by the utility model is to provide an LED lamp with the same installation interface as the energy-saving lamp, which has a built-in LED light-emitting device with lower cost and smaller volume.

The technical scheme adopted by the utility model to solve the technical problem is that the LED lamp is characterized in that it includes a lamp tube, a lamp holder and an LED light bar, and the LED light bar is arranged in a strip-shaped light tube and connected with the LED light bar The LED driving circuit is set in the lamp holder, and the LED light bar is composed of a transparent substrate, a mixed paint layer coated on the upper surface of the substrate, an LED light-emitting unit arranged on the mixed paint layer, and an electrode electrically connected to the LED light-emitting unit Composed of fluorescent glue, the fluorescent glue covers the LED light-emitting unit and the mixed paint layer, and the material of the mixed paint layer is insulating glue mixed with phosphor powder.

The LED light-emitting unit is composed of LED chips arranged in series, and each LED chip is arranged in two rows. The substrate is a glass plate, and the fluorescent glue is only arranged on the top of the substrate. The electrodes include positive and negative electrodes, the two electrodes are symmetrical in shape and arranged on the substrate. The LED light bar is in the shape of a long strip as a whole. The lamp tube is a U-shaped glass tube or an H-shaped glass tube. The lamp holder includes a lamp holder and a base, the LED driving circuit is arranged in the base, the base is connected with the lamp holder, and the outer wall of the lamp holder is provided with mounting threads.

The beneficial effect of the utility model is that the installation interface of the utility model is completely consistent with the energy-saving lamp, and has better versatility; the volume of the LED light bar in the lamp tube is smaller, and the raw materials are more saved. Compared with the prior art, the LED light bar of the utility model removes the transparent protective plate, simplifies the production process, and reduces the consumption of raw materials by more than 1/3. Since the utility model adopts the insulating glue mixed with fluorescent powder as the mixed paint, the package unit arranged on the back of the transparent substrate in the prior art to prevent blue light leakage is simplified. The reduction of these two raw materials makes the utility model more environmentally friendly. Due to the omission of the package unit on the back of the transparent substrate, the completed lamp panel mechanism no longer needs to be trimmed, and the simplification of this unit greatly saves labor costs.

Description of drawings

Fig. 1 is a schematic structural diagram of an LED light bar in the prior art.

Fig. 2 is an exploded view of the LED light bar of the present invention.

Fig. 3 is a schematic diagram of the connection between the electrode and the substrate of the LED light bar of the present invention (disassembled state).

Fig. 4 is a schematic diagram of the connection between the electrode and the substrate of the LED light bar of the present invention (connection completed state).

Fig. 5 is the Y-300 fluorescent agent test frequency chart that the utility model adopts.

Fig. 6 is the YAG of the Y-300 fluorescent agent that the utility model adopts: Ce electron micrograph.

Fig. 7 is a schematic structural view (disassembled state) of the LED lamp of Embodiment 1.

FIG. 8 is a schematic view of the appearance of Embodiment 1. FIG.

FIG. 9 is a schematic diagram of the combination of light bars in Embodiment 2. FIG.

Detailed ways

See Figures 2-4.

The LED light bar of the present utility model consists of a transparent glass substrate 1, a mixed paint layer 2 coated on the upper surface of the substrate 1, an LED light-emitting unit 3 arranged on the mixed paint layer 2, and an electrode 5 electrically connected to the LED light-emitting unit 3 Composed of fluorescent glue 4, the fluorescent glue 4 covers the LED light-emitting unit 3 and the mixed paint layer 2, and the material of the mixed paint layer 2 is insulating glue mixed with phosphor powder.

The LED lamp of the present utility model comprises a lamp tube, a lamp holder and an LED lamp bar. The LED lamp bar is arranged in the bar-shaped lamp tube, and the LED driving circuit connected with the LED lamp bar is arranged in the lamp holder.

The "strip-shaped lamp tube" described in the utility model includes not only a single strip-shaped structure, but also a combination of two strip-shaped structures, such as U-shaped or H-shaped (U-shaped is two strip-shaped lamps connected at the end , Type H is two strip lamps connected in the middle), and a combination of three or more strip lamps.

The LED light bar is composed of a transparent substrate 1, a mixed paint layer 2 coated on the upper surface of the substrate 1, an LED light-emitting unit 3 arranged on the mixed paint layer 2, an electrode 5 electrically connected to the LED light-emitting unit 3, and fluorescent glue. 4, the fluorescent glue 4 covers the LED light-emitting unit 3 and the mixed paint layer 2, and the material of the mixed paint layer 2 is insulating glue mixed with phosphor powder.

The LED light-emitting unit is composed of LED chips arranged in series, and each LED chip is arranged in two rows. The substrate 1 is a glass plate, and the fluorescent glue 4 is only disposed above the substrate 1 . The electrodes 5 include positive and negative electrodes, the two electrodes are symmetrical in shape, and are arranged on the substrate 1 . The LED light bar is generally in the shape of a long strip.

The lamp holder includes a lamp base and a base, the LED driving circuit is arranged in the base, the base is connected to the lamp base, and the outer wall of the lamp base is provided with an installation interface, such as a screw thread.

Embodiment 1: see Fig. 7,8.

This embodiment includes a lamp tube, a lamp holder and an LED lamp bar. The LED lamp bar is arranged in the bar-shaped lamp tube, and the LED driving circuit connected with the LED lamp bar is arranged in the lamp holder. The lamp holder includes solder-free nails 11 , a lamp cap 12 , a base 13 and an upper cover 16 , and the base 13 is provided with a driving power supply 14 and a PCB circuit board 15 . The light bar 17 is arranged in the light 18 and passes through the hole on the upper cover 16 , and the light bar 17 is connected with the circuit on the PCB circuit board 15 to form a circuit. The lamp tube in this embodiment is a U-shaped lamp tube.

The LED lighting device of this embodiment is in the shape of a strip as a whole.

The fluorescent glue of the utility model can adopt mature prior art, and can also be prepared by oneself.

See Figures 5 and 6. As a preferred embodiment, the fluorescent glue used is formed by mixing and curing powdered fluorescent agent, curing agent, silica gel, silane and diffusing agent. The composition of the fluorescent agent includes rare earth elements, which can excite red, green, and yellow fluorescent powders and modulate them into fluorescent agents in different proportions. As a more specific example, YAG is selected as a yellow phosphor, LuAG is selected as a green phosphor, and SSN is selected as a red phosphor. The molecular formula of YAG phosphor is Y ₃ Al ₅ O ₁₂ : Ce, which is made by high-temperature solid-phase method, and can provide yellow light near 540nm to 580nm; the molecular formula of LuAG phosphor is Lu ₃ Al ₅ O ₁₂ : Ce, which is produced by high-temperature solid-phase Manufactured by method, it can provide green light near 500nm to 540nm; the molecular formula of nitride red SSN phosphor is Sr ₂ Si ₅ N ₈ : Eu, it is made by high temperature solid phase method, and it can provide red light near 620nm to 660nm.

Four kinds of fluorescent agents can be prepared by using the aforementioned three kinds of phosphors, and the ratio by weight is:

(1) H3000 fluorescent agent: color temperature 3000±300K

YAG:LuAG:SSN=0.2:0.4:0.1～0.15

(2) H4500 fluorescent agent: color temperature 4500±300K

YAG:LuAG:SSN=0.2:0.4:0.05～0.1

(3) H6000 fluorescent agent: color temperature 6000±300K

YAG:LuAG:SSN=0.2:0.4:0.01～0.05

(4) Y-300 fluorescent agent:

YAG=100%

The above-mentioned yellow phosphor can also be a nitrogen oxide yellow phosphor with a molecular formula of β-SiAlON, the green phosphor can also be a nitride green phosphor with a molecular formula of BaAlON, and the red phosphor can also be a nitride red phosphor SASN with a molecular formula is SrAlSiN ₈ :Eu.

The fluorescent agent used in the fluorescent glue of the present invention can be one of the aforementioned fluorescent agents, or a combination of the aforementioned fluorescent agents. Calculated by weight percentage, the fluorescent agent accounts for 60% to 70% of the fluorescent glue, the diffusing agent is not more than 2%, the silane is not more than 0.1%, and the rest is made of silica gel and curing agent at a ratio of 1:4. As a more specific example, using Y-003 phosphor, it can be seen from Figures 5 and 6 that the light with a wavelength of 460nm in the excitation spectrum just matches the emission spectrum (440-470nm) of the light-emitting diode. From the figure, it can be seen that Y-003 can obtain For the emitted light at 550nm, it can be seen from Figure 6 that the phosphor particle size parameter D10=9.74 microns.

Example 2:

In this embodiment, two LED light bars 17 are arranged inside each lamp tube, see FIG. 9 . Fig. 9A is an exploded state, and Fig. 9B is an assembled state. The two light bars 17 are connected by iron wire 22, and 21 is an electrode of the light source bar.

Example 3:

The packaging method of the LED lighting device of the present utility model comprises the following steps:

A. Setting the electrode 5 on the substrate 1: bonding the electrode to the substrate 1 through a high-temperature resin 6;

B. Coating a mixed paint on the upper surface of the substrate 1 to form a mixed paint layer 2, the material of the mixed paint is insulating glue mixed with fluorescent powder;

C, LED light-emitting unit 3 is set on the mixed paint layer 2,

D, making the LED light emitting unit 3 and the electrode 5 form an electrical connection;

E. Coating fluorescent glue 4 on the substrate 1 so as to cover the LED light emitting unit 3 and the mixed paint layer 2 .

Example 4:

The packaging method of the LED lighting device of the present utility model comprises the following steps:

1) Coating a mixed paint on the upper surface of the substrate 1 to form a mixed paint layer 2, the material of the mixed paint is insulating glue mixed with fluorescent powder;

2) Setting the electrode 5 on the substrate 1: bonding the electrode to the substrate 1 through a high-temperature resin 6;

3) setting LED lighting unit 3 on the mixed paint layer 2,

4) Forming an electrical connection between the LED light emitting unit 3 and the electrode 5;

5) Coating fluorescent glue 4 on the substrate 1 so as to cover the LED light emitting unit 3 and the mixed paint layer 2 .

Example 5:

The packaging method of the LED lighting device of the present utility model comprises the following steps:

1) Coating a mixed paint on the upper surface of the substrate 1 to form a mixed paint layer 2, the material of the mixed paint is insulating glue mixed with fluorescent powder;

2) An LED light-emitting unit 3 is arranged on the mixed paint layer 2;

3) Setting the electrode 5 on the substrate 1: bonding the electrode to the substrate 1 through a high-temperature resin 6,

4) Forming an electrical connection between the LED light emitting unit 3 and the electrode 5;

5) Coating fluorescent glue 4 on the substrate 1 so as to cover the LED light emitting unit 3 and the mixed paint layer 2 .

The description has fully described the necessary technical content of the utility model, and those of ordinary skill can implement the utility model according to the description, so no more specific technical details are repeated.

Claims (7)

1.LED light fixture, it is characterized in that, comprise fluorescent tube, lamp socket and LED lamp bar, described LED lamp bar is arranged in bar shaped fluorescent tube, the LED drive circuit being connected with LED lamp bar is arranged in lamp socket, described LED lamp bar is by transparent substrate (1), be coated on the compo layer (2) of substrate (1) upper surface, be arranged at the LED luminescence unit (3) on compo layer (2), the electrode (5) being electrically connected with LED luminescence unit (3) and fluorescent glue (4) form, the coated LED luminescence unit (3) of fluorescent glue (4) and compo layer (2).

2. LED light fixture as claimed in claim 1, is characterized in that, described LED luminescence unit is made up of the LED chip arranging of connecting, and each LED chip is set to two row.

3. LED light fixture as claimed in claim 1, is characterized in that, described substrate (1) is glass plate, and described fluorescent glue (4) is only arranged at the top of substrate (1).

4. LED light fixture as claimed in claim 1, is characterized in that, described electrode (5) comprises positive and negative two electrodes, and two electrode shape symmetries are arranged on substrate (1).

5. LED light fixture as claimed in claim 1, is characterized in that, described LED lamp bar entirety is strip.

6. LED light fixture as claimed in claim 1, is characterized in that, described fluorescent tube is U-shaped glass tube or H type glass tube.

7. LED light fixture as claimed in claim 1, is characterized in that, described lamp socket comprises lamp holder and base, and LED drive circuit is arranged in base, and base is connected with lamp holder, and lamp holder outer wall is provided with installation screw thread.