CN210920991U

CN210920991U - G9 LED lamp capable of emitting light comprehensively

Info

Publication number: CN210920991U
Application number: CN201921329955.6U
Authority: CN
Inventors: 陈朝冬
Original assignee: Guizhou Jiahe Lighting Technology Co ltd
Current assignee: Guizhou Jiahe Lighting Technology Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-07-03
Anticipated expiration: 2029-08-16
Also published as: CN211267182U

Abstract

The utility model discloses a G9 LED lamp capable of emitting light comprehensively, which comprises a transparent glass shell, an LED light-emitting chip, pins, a packaging substrate arranged in the glass shell and an independent driving power supply arranged in a packaging substrate cylinder body; the packaging substrate comprises a cylindrical barrel body and an end cover for enclosing the bottom of the cylindrical barrel body, and the LED light-emitting chip is packaged on the outer circumferential surface and the top surface of the packaging substrate in a COB mode and is electrically connected with the independent driving power supply through a lead; the utility model aims at providing a G9 LED lamp of giving out light comprehensively aims at realizing giving out light comprehensively, makes the light that sends present torch luminous state, can not take place the stroboscopic after lighting simultaneously, has stable power.

Description

G9 LED lamp capable of emitting light comprehensively

Technical Field

The utility model belongs to the technical field of the illumination, concretely relates to G9 LED lamp of comprehensive luminous.

Background

The G9 type lamp bead is a stitch type lamp bead, the lamp bead is commonly used on modern European crystal ceiling lamps, the traditional G9 lamp bead is a halogen lamp using tungsten filaments, wherein halogen is harmful substances, the lamp bead is high in temperature and high in power during working, energy is not enough, environment is protected, and the service life is short. Therefore, G9 LED lamps have been manufactured by using LED lamps instead of halogen lamps, but they all use flat-plate-shaped package substrates, so that the light emission has obvious directivity, and the application scenarios are limited and need to be improved.

Disclosure of Invention

The utility model aims at above problem, provide a G9 LED lamp of giving out light comprehensively, aim at realizing giving out light comprehensively, can not take place the stroboscopic after lighting simultaneously, have stable power.

In order to achieve the above purpose, the utility model adopts the technical scheme that the LED lamp comprises a transparent glass shell, an LED light-emitting chip, pins, a packaging substrate arranged in the glass shell and an independent driving power supply arranged in the packaging substrate; wherein packaging substrate includes cylindric stack shell and encloses the end cover that closes cylindric stack shell bottom, LED luminescence chip passes through COB mode encapsulation at packaging substrate outer periphery and top surface to be connected with independent drive power supply electricity through the wire.

Furthermore, the outer side of the packaging substrate is covered with packaging glue and fluorescent powder, and the LED light-emitting chip is wrapped between the packaging substrate and the packaging glue.

Furthermore, the cylinder body is formed by bending and folding a rectangular aluminum substrate, two groups of connecting parts which are folded inwards are arranged at the folding part, and welding spots for electrically connecting the LED light-emitting chip and the lead are arranged on the connecting parts.

Further, the independent driving power supply comprises a power switch, a rectifying circuit and a constant current output circuit, wherein:

the rectifying circuit comprises a rectifying bridge stack, wherein the input end of the rectifying bridge stack is connected with alternating current through a power switch and used for rectifying the input alternating current to output pulsating direct current voltage;

the constant current output circuit comprises a constant current chip, a resistor R2, a resistor R3, a capacitor C1 and a capacitor C2; the power supply port is connected with the negative output end of the rectifying circuit through a capacitor C2, the power supply port of the constant current chip is connected with the negative output end of the rectifying circuit through a capacitor C1, the first current regulating end of the constant current chip is connected with the negative output end of the rectifying circuit through a resistor R2, the second current regulating end of the constant current chip is connected with the negative output end of the rectifying circuit through a resistor R3, and the power supply port of the constant current chip is connected with the positive output end of the rectifying circuit.

Further, a protection resistor R1 is also arranged between the rectifying circuit and the constant current output circuit.

Further, the rectifier bridge stack is composed of four diodes.

Further, the glass housing includes a cylindrical lamp housing at an upper end and a flat base at a lower end, the pins are press-sealed in the base, one end of the pins is connected with the independent driving power supply, and the other end of the pins is exposed out of the glass housing and bent into a ring shape.

Further, the G9 LED lamp further comprises a molybdenum sheet and a molybdenum rod, the upper end of the molybdenum rod is welded on the independent driving power supply through silver paste, the lower end of the molybdenum rod is welded at the upper end of the molybdenum sheet, the lower end of the molybdenum sheet is welded with the upper end of the pin, and the lower end of the molybdenum rod, the whole molybdenum sheet and the upper end of the pin are press-sealed in the base.

Furthermore, the cross section of the pin is rectangular, the length-width ratio is greater than 1.5, the length direction of the cross section of the pin is parallel to the length direction of the cross section of the base, and the whole pin is made of molybdenum.

Furthermore, the cylindrical lampshade is internally provided with a vacuum environment.

Compared with the prior art, the utility model, the beneficial effects are that:

1. the G9 LED lamp capable of emitting light comprehensively adopts a cylindrical packaging substrate, and the LED light-emitting chips are packaged on the outer circumferential surface and the top surface of the packaging substrate in a COB mode, so that the effect of emitting light comprehensively is achieved, and the application scenes are greatly increased.

2. The LED packaging structure is characterized in that an aluminum substrate is adopted to complete an LED packaging process, silica gel is covered outside the LED packaging structure, a light source is formed and then the LED packaging structure is manufactured into a barrel shape, an independent driving power supply is assembled in a barrel core and connected with the light source, finally a ceramic end cover is used for sealing, and high temperature generated when glass is sealed through isolation clamps is prevented.

3. Different constant direct currents are output according to the constant current chips, so that the LED light emitting chips emit light with different color temperatures, and the emitted light is in a torch light emitting state.

Other advantages of the present invention will be further explained in the detailed description of the invention.

Drawings

Fig. 1 is a schematic view of the main structure of the present invention.

Fig. 2 is a cross-sectional view of the embodiment of the present invention.

Fig. 3 is a side cross-sectional view of another embodiment of the present invention.

Fig. 4 is a schematic view of an installation position and a connection structure of the independent driving power source.

Fig. 5 is a partially enlarged structural view of a portion a in fig. 4.

Fig. 6 is an expanded structure diagram of the package substrate.

Fig. 7 is a sectional view of the second embodiment of the present invention.

Fig. 8 is a side sectional view of the present invention from another angle.

Fig. 9 is a circuit diagram of the independent driving power supply of the present invention.

The text labels in the figures are represented as: 1. a glass housing; 11. a cylindrical lamp shade; 12. a base; 2. a package substrate; 21. a barrel body; 22. an end cap; 210. a connecting portion; 3. an LED light emitting chip; 4. a pin; 41. a flattened section; 5. an independent drive power supply; 6. a molybdenum sheet; 7. a molybdenum rod; 8. a wire; 9. and (7) packaging the glue.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

Referring to fig. 1-6, an embodiment of a G9 LED lamp with overall illumination according to the present invention is shown, which includes a transparent glass casing 1, an LED light emitting chip 3, and pins 4;

specifically, the glass package further comprises a package substrate 2 arranged in the glass package 1 and an independent driving power supply 5 arranged in the package substrate 2; wherein packaging substrate 2 includes cylindric stack shell 21 and encloses the end cover 22 that closes cylindric stack shell 21 bottom, LED luminescence chip 3 passes through COB mode encapsulation at packaging substrate 2 outer periphery and top surface to be connected with independent drive power supply 5 electricity through wire 8.

In the first implementation of the present invention, the LED light emitting chip 3 is packaged on the outer circumferential surface and the top surface of the package substrate 2 by the COB method, so as to achieve a comprehensive light emitting effect and greatly increase the application scenarios; meanwhile, in view of the limitation that glass of the conventional G9 LED lamp can generate a high temperature exceeding 600 degrees in the clamping process and the volume of the G9 lamp is small, a complete device (independent driving power supply 5) is independently arranged in the glass housing 1, so that in the absence of the complete device, the G9 LED lamp is stroboscopic after being lighted, the power is unstable, the temperature is high, and the service life is short.

In the present embodiment, as shown in fig. 6, the barrel 21 is formed by bending and folding a rectangular aluminum substrate, the specific bending portion is shown by an arrow and a dotted line, the folding portion has two sets of connecting portions 210 folded inwards, the connecting portions 210 are provided with solder points for electrically connecting the LED light-emitting chip 3 and the wires 8, in a preferred embodiment of the present embodiment, the aluminum substrate is easy to punch and bend, and the manufacturing is easy.

In this embodiment, the glass housing 1 includes an upper cylindrical lamp housing 11 and a lower flat base 12, and the pins 4 are press-sealed in the base 12, connected to the independent driving power source 5 at one end, exposed from the glass housing 1 at the other end, and bent into a loop shape.

In this embodiment, the G9 LED lamp further includes a molybdenum sheet 6 and a molybdenum rod 7, the upper end of the molybdenum rod 7 is welded to the independent driving power supply 5 through silver paste, the lower end of the molybdenum sheet 6 is welded to the upper end of the molybdenum sheet 6, the lower end of the molybdenum sheet 6 is welded to the upper end of the pin 4, and the lower end of the molybdenum rod 7, the entire molybdenum sheet 6 and the upper end of the pin 4 are press-sealed in the base 12.

As shown in fig. 7 and 8, the second embodiment of the G9 LED lamp emitting light comprehensively of the present invention is different from the first embodiment in that the cross section of the pin 4 is circular, but the middle section of the pin 4 is stamped into a flat section 41, the aspect ratio is greater than 2, the length direction of the cross section of the pin 4 is parallel to the length direction of the cross section of the base 12, and the material of the entire pin 4 is molybdenum. Because the coefficient of thermal expansion of metal molybdenum and glass is close, the difficult clearance that produces of expend with heat and contract with cold, the effect of flat section 41 is similar with the molybdenum sheet effect, and the gas tightness is better after the attenuation, and it is firm to participate in 4 fixes, is afraid of to pull, nevertheless needn't weld again, reduces the process, reduce cost, and this is especially important to lower G9 lamp of price.

In addition, because the original molybdenum sheet is thin, the strength is not enough, and two ends of the molybdenum sheet are welded, the flatness is not easy to guarantee, when glass is clamped and sealed, the pin 4, the molybdenum sheet 6 and the molybdenum rod 7 are easy to deform, so that the packaging substrate 2 is inclined in the cylindrical lampshade and cannot be adjusted, and the yield of products is influenced. The pin 4 of the present embodiment is an integral structure, and does not need to be welded, so as to effectively avoid welding instability, and the flat section 41 has a width not wider than the molybdenum sheet 6, but has better strength, and is not easy to deform during glass sealing, so as to improve the yield of products.

In the utility model discloses in, participate in 4 cross sections and be the rectangle, the aspect ratio is greater than 1.5, participate in 4 cross sections the length direction with the length direction of base 12 cross section is parallel, whole material of participating in 4 is molybdenum. The traditional pins with round cross sections are not adopted, because the heat dissipation effect of the pins can be increased, the wire diameter or the cross section area of the pins does not need to be increased, the strength in a specific direction is good, and the pins are not easy to deform.

The utility model discloses in, can also fill inert gas or liquid silica gel inside the glass shell, the heat that the LED luminescence chip produced can transmit heat to the glass shell fast, is favorable to the heat dissipation, be vacuum environment in the cylindrical lamp cover.

The utility model discloses in, as shown in fig. 9, for the circuit diagram of the independent drive power supply 5 of the G9 LED lamp of comprehensive luminous, this circuit structure is simple, and the circuit board of needs is less, can place in stack shell 21, can realize mixing of colors, and power factor is higher, can save the electric energy. The power supply circuit specifically comprises a power supply switch K1, a rectifying circuit and a constant current output circuit.

The rectifier circuit adopts a full-bridge rectifier bridge stack BD1 formed by four diodes, and the input end of the rectifier bridge stack BD1 is connected with alternating current through a power switch K1 and used for rectifying the input alternating current to output pulsating direct current voltage.

The constant current output circuit comprises a constant current chip EG2000A, a resistor R2, a resistor R3, a capacitor C1 and a capacitor C2. The VDD power port is connected with the negative output end of the rectifying circuit through a capacitor C2, the VCC power port of the constant current chip EG2000A is connected with the negative output end of the rectifying circuit through a capacitor C1, the first current adjusting end of the constant current chip EG2000A is connected with the negative output end of the rectifying circuit through a resistor R2, the second current adjusting end of the constant current chip EG2000A is connected with the negative output end of the rectifying circuit through a resistor R3, and the power supply port of the constant current chip EG2000A is connected with the positive output end of the rectifying circuit.

The constant current chip EG2000A converts the pulsating dc voltage output from the rectifier circuit to output different constant dc currents according to the on/off of the power switch K1. The constant current output port of the constant current chip EG2000A is connected with the cathode end of the COB packaged LED light emitting chip 3, and the anode end of the LED light emitting chip 3 is connected with the anode output end of the rectifier bridge stack, so that light with different color temperatures can be emitted according to different constant direct currents output by the constant current chip EG2000A, and the emitted light is in a torch light emitting state through the different color temperatures.

Preferably, a protection resistor R1 is further provided between the rectifying circuit and the constant current output circuit. Wherein, the resistance value of R1 is 1M ohm, the resistance values of R2 and R3 are 20 ohm, and the capacitance resistances of C1 and C2 are 16V10uf, although the protection scope of the present invention is not limited to this value.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims

1. A G9 LED lamp capable of emitting light comprehensively comprises a transparent glass shell, an LED light emitting chip and pins, and is characterized by further comprising a packaging substrate arranged in the glass shell and an independent driving power supply arranged in the packaging substrate; wherein packaging substrate includes cylindric stack shell and encloses the end cover that closes cylindric stack shell bottom, LED luminescence chip passes through COB mode encapsulation at packaging substrate outer periphery and top surface to be connected with independent drive power supply electricity through the wire.

2. The G9 LED lamp with complete illumination of claim 1, wherein the package substrate is covered with package glue and phosphor powder on the outside, and the LED light emitting chip is wrapped between the package substrate and the package glue.

3. The G9 LED lamp with complete illumination of claim 1, wherein the barrel is formed by bending and folding a rectangular aluminum substrate, the folded portion has two sets of inwardly folded connecting portions, and the connecting portions are provided with solder points for electrically connecting the LED light emitting chip and the wires.

4. The full-lighting G9 LED lamp as claimed in any one of claims 1-3, wherein the independent driving power supply comprises a power switch K1, a rectifying circuit and a constant current output circuit, wherein:

the rectifying circuit comprises a rectifying bridge stack BD1, wherein the input end of the rectifying bridge stack BD1 is connected with alternating current through a power switch K1 and is used for rectifying the input alternating current to output pulsating direct current voltage;

the constant current output circuit comprises a constant current chip EG2000A, a resistor R2, a resistor R3, a capacitor C1 and a capacitor C2; the power supply port VDD of the constant current chip EG2000A is connected with the negative output end of the rectifying circuit through a capacitor C2, the power supply port VCC of the constant current chip EG2000A is connected with the negative output end of the rectifying circuit through a capacitor C1, the first current regulating end of the constant current chip EG2000A is connected with the negative output end of the rectifying circuit through a resistor R2, the second current regulating end of the constant current chip EG2000A is connected with the negative output end of the rectifying circuit through a resistor R3, and the power supply port of the constant current chip EG2000A is connected with the positive output end of the rectifying circuit.

5. The G9 LED lamp emitting light comprehensively according to claim 4, wherein a protection resistor R1 is further arranged between the rectifying circuit and the constant current output circuit.

6. The full-face G9 LED lamp of claim 4, wherein the bridge rectifier BD1 is comprised of four diodes.

7. The full-area lighting G9 LED lamp as claimed in claim 1, wherein the glass casing comprises an upper cylindrical lampshade and a lower flat base, pins are press-sealed in the base, one end of each pin is connected to an independent driving power supply, the other end of each pin is exposed out of the glass casing, and the pins are bent into a ring shape.

8. The full-surface lighting G9 LED lamp of claim 7, wherein the G9 LED lamp further comprises a molybdenum plate and a molybdenum rod, the upper end of the molybdenum rod is welded on the independent driving power source through silver paste, the lower end of the molybdenum rod is welded on the upper end of the molybdenum plate, the lower end of the molybdenum plate is welded with the upper end of the pin, and the lower end of the molybdenum rod, the whole molybdenum plate and the upper end of the pin are press-sealed in the base.

9. A full area lighting G9 LED lamp as claimed in claim 7 or claim 8, wherein the cross-section of the pins is rectangular with an aspect ratio greater than 1.5, the length of the cross-section of the pins is parallel to the length of the cross-section of the base, and the material of the entire pin is molybdenum.

10. The full-face lighting G9 LED lamp of claim 9, wherein the cylindrical lamp enclosure has a vacuum environment inside.