WO2017219504A1

WO2017219504A1 - High-power led lamp

Info

Publication number: WO2017219504A1
Application number: PCT/CN2016/098286
Authority: WO
Inventors: 黄晋; 王海卫
Original assignee: 亚浦耳照明股份有限公司
Priority date: 2016-06-24
Filing date: 2016-09-07
Publication date: 2017-12-28
Also published as: CN105972455A

Abstract

A high-power LED lamp, comprising: a lamp base (1), a power cavity (2), a power source (3), a heat radiation base tube (4), at least one heat radiation fin (5), at least one light source base (6), a protective diffusing cover (7), an active or passive air convector (8), and a heat radiation end cover (9); the lamp base (1) being fixed onto the power cavity (2); the power source (3) being fixed into the power cavity (2); the power cavity (2) being connected to the heat radiation base tube(4); the light source base (6) being fixed onto the heat radiation base tube (4); the protective diffusing cover (7) being provided on the outer side of the light source base (6); the heat radiation fin (5) being provided on the heat radiation base tube (4); the active or passive air convector (8) being fixed onto the heat radiation end cover (9) and then being fixed together with the heat radiation end cover (9), onto the heat radiation base tube (4).

Description

A high power LED lamp

Technical field

The invention belongs to the technical field of illumination, and in particular to a high power LED lamp.

Background technique

Semiconductor lighting has many advantages such as high brightness, low energy consumption, long life, and environmental protection. It is being widely used in various fields of lighting. However, since the light-emitting principle and light-emitting characteristics of the light-emitting diode are greatly different from those of the conventional light source, the design of the light-emitting diode has more and stricter requirements.

LED lamps emit higher heat during illumination, especially when high-power LED lamps emit more heat, and excessive heat accumulation shortens the life of LED lamps. Therefore, existing high power LED lamps are provided with heat sinks. However, most of the heat sinks are passively dissipated, and active heat dissipation is not possible, so the heat dissipation effect is not good.

In addition, the use of a sealed lampshade or lamp housing to effectively protect the light source is a common technique, which is not conducive to the performance of the light source, and is not conducive to heat dissipation.

Therefore, there is a need for a high-power LED lamp that can maximize the characteristics of the light source and effectively solve the heat dissipation problem.

Summary of the invention

In order to solve the defects of the high-power LED lamp in the prior art, the present invention provides a high-power LED lamp with high utilization rate of light source, good heat dissipation effect and long service life.

According to an aspect of the present invention, a high-power LED lamp includes: a lamp cap, a power supply cavity, a power source, a heat dissipation base pipe, at least one heat dissipation fin, at least one light source substrate, a protection diffusion cover, Active air convector and heat sink cover;

The lamp cap is fixed on the power supply cavity;

The power source is fixed in the power supply cavity, and the power supply cavity is connected to the heat dissipation base pipe;

The light source substrate is fixed on the heat dissipation base pipe, and the protection diffusion cover is disposed on an outer side of the light source base;

The heat dissipation fin is disposed on the heat dissipation base pipe;

The active or passive air convector is fixed on the heat dissipation end cover and is fixed to the heat dissipation base pipe together with the heat dissipation end cover.

According to an embodiment of the invention, the surface of the protective diffusion cover is a matte surface, a frosted surface, a glossy surface or a transparent surface.

According to another embodiment of the present invention, the heat dissipation fins are formed integrally or separately from the heat dissipation base pipe.

According to yet another embodiment of the invention, the active or passive air convector is mechanically or electronically driven.

According to still another embodiment of the present invention, the upper and lower ends of the protection diffusion cover are directly communicated with the outside.

According to still another embodiment of the present invention, the heat dissipation base pipe is made of ceramic, metal, and/or plastic.

According to still another embodiment of the present invention, the protective diffusion cover is made of glass, ceramic, and/or plastic.

According to still another embodiment of the present invention, the heat dissipation fins are made of ceramic, metal and/or plastic.

According to still another embodiment of the present invention, the heat dissipation end cover is made of ceramic, metal and/or plastic.

According to still another embodiment of the present invention, the power supply cavity is made of ceramic, metal, and/or plastic.

According to still another embodiment of the present invention, the light source substrate is formed by at least one LED chip fixed on the substrate on which the line is formed or at least one LED chip and does not need a substrate.

The high-power LED lamp provided by the invention replaces the traditional sealed lampshade or lamp casing with a protective diffusion cover, so that the characteristics of the LED light source are exerted to a greater extent. In addition, since both ends of the protection diffusion cover are directly connected to the outside, convection with the outside air enhances the heat dissipation performance of the LED lamp, and solves the problem that the LED light and heat are contradictory to each other.

The high-power LED lamp adopts modular design, and the light source base body, heat dissipation fin, heat dissipation base pipe, power supply, active air convector, lamp base and other structural parts can be combined and replaced according to actual conditions, which reduces the use cost and prolongs the use. The service life has reached the goal of protecting the environment.

More critically, the high-power LED lamp provided by the present invention is provided with an active or passive air convector, that is, an active heat sink or a passive heat sink. In this way, the heat generated by the high-power LED lamp during operation can be quickly discharged, the heat of the power source and the light source substrate can be reduced, the rated use temperature of the light source substrate and the power source can be maintained, and the service life can be prolonged.

Through the above special structural design, the power and illumination of the high-power LED lamp provided by the invention can be made very large, even exceeding the light effect of the conventional sodium lamp or metal halide lamp, and become a high-power LED lamp with superior performance.

DRAWINGS

Other features, objects, and advantages of the present invention will become more apparent from the Detailed Description of Description

1 is a schematic structural view of a specific embodiment of a high power LED lamp according to the present invention;

2 is a schematic view showing a specific gas flow direction when a high-power LED lamp is used according to the present invention;

FIG. 3 is a schematic overall structural view of a specific embodiment of a high power LED lamp according to the present invention.

The same or similar reference numerals in the drawings denote the same or similar components.

detailed description

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in different examples. This repetition is for the purpose of simplicity and clarity, and is not in the nature of the description of the various embodiments and/or arrangements discussed. It is noted that the components illustrated in the drawings are not necessarily drawn to scale. The description of the known components and processing techniques and processes is omitted to avoid unnecessarily limiting the present invention.

Referring to FIG. 1 to FIG. 3, the high-power LED lamp provided by the present invention comprises: a lamp cap 1, a power supply cavity 2, a power source 3, a heat dissipation base pipe 4, at least one heat dissipation fin 5, at least one light source substrate 6, and a protection diffusion cover 7. Active or passive air convector 8 and heat sink end cap 9.

The base 1 is fixed to the power supply cavity 2 . Preferably, the power supply cavity 2 is made of ceramic, metal and/or plastic.

The power source 3 is fixed in the power supply cavity 2 without an external power supply. The integrated structure of light source and power supply makes installation and use easier. The power supply cavity 2 is connected to the heat dissipation base pipe 4. The heat sink base tube 4 is the core component of the high power LED lamp, which may be circular, square, diamond or other geometric shape. Preferably, the heat dissipation base pipe 4 is made of ceramic, metal and/or plastic; in addition, other high heat conduction and high heat dissipation materials can also be used as the preparation material of the heat dissipation base pipe 4.

The light source base 6 is fixed to the heat dissipation base pipe 4, and the protective diffusion cover 7 is disposed outside the light source base 6. Unlike the conventional lampshade or lamp housing, the protective diffusion cover 7 is non-closed, that is, it can protect the light source substrate 6 and can dissipate heat. Preferably, the protective diffusion cover 7 is made of glass, ceramic and/or plastic. In order to achieve different illuminating effects, it is preferable that the surface of the protective diffusion cover 7 is a matte surface, a frosted surface, a glossy surface or a transparent surface. In order to enhance the heat dissipation effect under the premise of protecting the light source base 6, it is preferable to directly protect the upper and lower ends of the diffusion cover 7 directly Connect with the outside world.

The heat dissipation fins 5 are disposed on the heat dissipation base pipe 4 . The thickness, length, and shape of the heat dissipation fins 5 can be adjusted as needed, and need not be specifically limited. The light source base 6 can be fixed to the heat dissipation fins 5 in addition to the heat dissipation base pipe 4, and the heat dissipation effect is better. Preferably, the heat dissipation fins 5 are made of ceramic, metal and/or plastic; in addition, other high thermal conductivity and high heat dissipation materials can also be used as the preparation material of the heat dissipation fins 5. In order to further simplify the production process, the heat dissipation fins 5 are preferably formed integrally with the heat dissipation base pipe 4. The integrally formed heat dissipation fins 5 and the heat dissipation base pipe 4 have better matching, which not only reduces the production cost, but also improves the production and heat dissipation efficiency.

The active or passive air convector 8 is fixed to the heat dissipation end cover 9 and is fixed to the heat dissipation base pipe 4 together with the heat dissipation end cover 9. The active air convector is, for example, a fan, and the passive air convector is, for example, a radiator. Preferably, the active or passive air convector 8 is driven mechanically or electronically. The active or passive air convector 8 can quickly discharge the heat generated by the high-power LED lamp during operation, reduce the heat inside the lamp body, and maintain the light source substrate 6 and the power source 3 at the rated use temperature, thereby prolonging the service life of the lamp body. Preferably, the heat dissipation end cover 9 is made of ceramic, metal and/or plastic. The light source substrate is formed by at least one LED chip fixed on a substrate on which the line is formed or at least one LED chip and does not need a substrate.

a lamp cap 1 constituting the high-power LED lamp, a power supply cavity 2, a power source 3, a heat dissipation base pipe 4, at least one heat dissipation fin 5, at least one light source substrate 6, a protective diffusion cover 7, an active or passive air convector 8 and The heat dissipation end cover 9 can be arbitrarily combined and replaced according to the use condition. This modular design reduces the cost of use, extends the life of the lamp, and protects the environment.

To further illustrate the heat dissipation performance of the high power LED lamp provided by the present invention, the flow direction of the airflow is specifically identified in FIG. The light source substrate 6 emits heat to the heat dissipation base pipe 4, and the heat dissipation base pipe 4 conducts a part of the heat to it by conduction. Internally, a portion is conducted to the heat sink fins 5. The active or passive air convector 8 draws cold air under the lamp body into the interior of the heat dissipation base pipe 4, and the cold air carries away the heat generated by the power source 3 and the light source substrate 6 through the inside of the heat dissipation base pipe 4. The rising cold air cannot rise after encountering the upper power supply cavity 2, and the airflow flows along the cooling fins 5 and the passage between the protection diffusion cover 7 and the light source base 6 to the lower portion, and the heat dissipation fins 5 and the light source are added. The air flow velocity on the surface of the base body 6 lowers the surface temperature, thereby achieving the purpose of bare rapid heat dissipation.

The high-power LED lamp provided by the invention has good heat dissipation performance, high light source utilization rate, long service life, simple structure and easy replacement, and low cost; most importantly, the high-power LED lamp provided by the invention can remove the sodium lamp and the mercury lamp without In the case of the original front-mounted electrical appliance of the metal halide lamp, the original bulb is directly replaced.

While the invention has been described with respect to the preferred embodiments and the embodiments of the present invention, it is understood that various changes, substitutions and modifications may be made to the embodiments without departing from the spirit and scope of the invention. For other examples, those of ordinary skill in the art will readily appreciate that the order of process steps may vary while remaining within the scope of the invention.

Further, the scope of application of the present invention is not limited to the process, mechanism, manufacture, composition of matter, means, methods and steps of the specific embodiments described in the specification. From the disclosure of the present invention, it will be readily understood by those skilled in the art that the processes, mechanisms, manufactures, compositions, means, methods, or steps that are presently present or will be developed in the The corresponding embodiments described have substantially the same function or substantially the same results, which can be applied in accordance with the invention. Therefore, the appended claims are intended to cover such modifications, such structures, structures,

Claims

A high-power LED lamp, comprising: a lamp head, a power supply cavity, a power source, a heat dissipation base pipe, at least one heat dissipation fin, at least one light source substrate, a protection diffusion cover, an active or a passive type Air convector and heat sink cover;

The lamp cap is fixed on the power supply cavity;

The power source is fixed in the power supply cavity, and the power supply cavity is connected to the heat dissipation base pipe;

The light source substrate is fixed on the heat dissipation base pipe or fixed on the heat dissipation fin, and the protection diffusion cover is disposed on an outer side of the light source base;

The heat dissipation fin is disposed on the heat dissipation base pipe;

The active or passive air convector is fixed on the heat dissipation end cover and is fixed to the heat dissipation base pipe together with the heat dissipation end cover.
The high power LED lamp according to claim 1, wherein the surface of the protective diffusion cover is a matte surface, a frosted surface, a glossy surface or a transparent surface.
The high-power LED lamp according to claim 1, wherein the heat dissipation fins are formed integrally or separately from the heat dissipation base pipe.
The high power LED lamp of claim 1 wherein said active or passive air convector is mechanically or electronically driven.
The high-power LED lamp according to claim 1, wherein the upper and lower ends of the protection diffusion cover are directly connected to the outside.
A high power LED lamp according to claim 5, characterized in that An active or passive air convector draws cold air under the high power LED lamp into the interior of the heat dissipation base pipe, and the cold air passes through the heat dissipation base pipe to heat the power source and the light source substrate The rising cold air flows downward along the heat dissipation fin and the passage between the protective diffusion cover and the light source substrate after encountering the upper power supply cavity.
The high power LED lamp according to claim 1, wherein the heat dissipation base pipe is made of ceramic, metal and/or plastic.
The high power LED lamp of claim 1 wherein said protective diffusion cover is fabricated from glass, ceramic and/or plastic.
The high power LED lamp according to claim 1, wherein the heat dissipation fins are made of ceramic, metal and/or plastic.
The high power LED lamp according to claim 1, wherein the heat dissipation end cover is made of ceramic, metal and/or plastic.
The high power LED lamp of claim 1 wherein said power supply cavity is fabricated from ceramic, metal and/or plastic.
The high power LED lamp according to claim 1, wherein the light source substrate is formed by at least one LED chip fixed on a substrate on which the wiring is formed or at least one LED chip and does not require a substrate.