CN201203004Y - Safe high-brightness LED lamp - Google Patents

Abstract

The utility model relates to a safe and high-brightness LED lamp, which mainly comprises a lampshade, a bulb holder, an LED module and a circuit board, wherein the lampshade and the bulb holder are combined to form an accommodating space for placing the LED module; the LED module is composed of a heat sink, an LED lamp panel and a reflecting wall, wherein the LED lamp panel is flatly attached and combined at one end of the heat sink, the LED lamp is sleeved on the reflecting wall to divide the accommodating space into a light source refraction space and an airflow flowing space, and the outer end of the heat sink is provided with a fan; therefore, when the LED light source is refracted and diffused to the lampshade light source refraction space through the reflection wall and refracted and diffused again, the uniform high brightness can be obtained, the air supply of the fan can be guided by the airflow flowing space, the heat dissipation efficiency is improved, and the service life of the LED bulb is prolonged.

Description

Safe high-brightness LED lamps

technical field

The utility model relates to a light source structure, in particular to a safe and high-brightness LED lamp.

Background technique

Light-emitting diode LED has the advantages of power saving, long life, mercury-free, high color reproducibility and environmental protection. It also has extremely high lighting uniformity and sufficient luminous flux, so it is widely used in various fields, such as: Traffic signs, large advertising billboards, flashlights, indoor lighting and other equipment.

However, if LED bulbs are used as light sources, if the number of bulbs is insufficient, the brightness of the bulbs will still not be able to achieve the best performance. If there are too many bulbs, the power consumption will be too high, and high heat will continue to be generated during use, causing the temperature around the LED to increase. As a result, the brightness of the LED will be affected and reduced. In particular, if the temperature is too high, it is easier to cause the LED circuit to fail, thereby reducing the service life of the LED lamp group.

Contents of the invention

The purpose of this utility model is to provide a safe and high-brightness LED lamp to overcome the defects of the above-mentioned traditional structure, and can obtain uniform high-brightness, and can be guided by the air flow space through the air supply of the fan to increase the heat dissipation efficiency and make the LED bulbs have an increased lifespan.

According to the above purpose, a safe and high-brightness LED lamp includes a lampshade, a bulb holder, an LED module, and a circuit board; it is characterized in that,

A lampshade in the form of a hollow housing with an opening, with a diffuse reflection layer attached to its inner surface, the opening of the hollow housing is combined with the bulb holder with the same opening to form an accommodating space for placing the LED module;

An LED module is composed of a heat sink, LED light board and reflective wall. One end of the heat sink has a plane for the LED light board to be flattened and combined with the reflective wall. The reflective wall is surrounded by the LED light board. For LED lamps, the accommodating space is divided into two spaces: light source refraction space and airflow flow space; and a heat dissipation fan is fixed at the outer end of the heat dissipation column of the heat dissipation body;

A circuit board is fixed on the lower end of the inner edge of the bulb holder and connected to the power contact, and then communicated with the cooling fan and the LED lamp board respectively.

Wherein, the outer edge of the bulb holder is provided with a ventilation hole corresponding to its cooling fan.

Wherein, the inner layer of the reflective wall of the LED module is attached with a reflective film, and the outer layer is made of aluminum.

Among them, the reflective wall of the LED module is a funnel-shaped structure with expanded holes.

Wherein, the heat dissipation fan at the outer end of the heat dissipation column of the heat dissipation body is additionally configured with a filter net.

Wherein, the wall surface of the reflective wall is a slope structure.

Wherein, the reflective wall has a curved surface structure.

Wherein, the opening edge of the reaming hole of the reflective wall is smaller than the diameter of the inner wall of the bulb holder.

Beneficial effects of the utility model:

Accordingly, after the first refraction and diffusion of the LED light source through the reflective wall into the light source refraction space of the lampshade to present a uniform light source effect, and then the second refraction and diffusion through the light source diffusion layer of the lampshade, the lamps produce uniform high luminous brightness, and more The heat can be guided by the direct air supply of the fan through the air flow space, and quickly dissipated outside the lamp through the cooling holes, increasing the heat dissipation efficiency and increasing the service life of the LED bulb.

The utility model refracts and diffuses the brightness of the LED lamp to the lampshade for the first time through the reflective wall arranged around the LED lamp, and then refracts and diffuses the brightness of the LED lamp for the second time through the light source refraction space through the diffuse reflection layer of the inner edge layer of the lampshade, resulting in high brightness. And uniform.

The utility model utilizes the heat dissipation body to contact the LED lamp board to absorb a large amount of heat, and then the heat energy is directly guided by the airflow flow space through the heat dissipation fan, and is quickly dissipated to the outer end by the heat dissipation hole of the bulb holder to reduce the temperature of the LED module , will not cause damage due to overheating and increase the service life of the bulb.

The light bulb of the utility model can be directly applied to existing equipment, has wide application range, and can reduce production cost.

The utility model obtains relatively high and uniform luminous efficiency through a single LED lamp, and has low power consumption and power saving.

Description of drawings

Fig. 1: Three-dimensional exploded view of the utility model.

Fig. 2: Stereo combination diagram of the utility model.

Fig. 3: A combined sectional view of the utility model.

Figure 4: Schematic diagram of the function of the light source of the utility model.

Figure 5: Schematic diagram of the heat dissipation direction of the utility model.

Figure 6: Schematic diagram of the heat dissipation action of the utility model.

Figure 7: Another embodiment of the reflective wall of the present invention.

Figure 8: Another embodiment of the utility model.

Fig. 9: Schematic diagram of heat dissipation in another embodiment of the present invention.

Detailed ways

Please refer to Fig. 1, Fig. 2 and Fig. 3, the lamp embodiment of the present utility model is presented in a light bulb structure, mainly comprising a lampshade 1, a bulb holder 10, an LED module 2 and a circuit board 3, wherein the lampshade 1 is in the form of It has a hollow cover structure with an opening, and a light source diffusion layer 11 is attached to the inner surface. The outer edge of the opening end of the lampshade is provided with a threaded part 110, which can be screwed with the internal thread 100 at the opening end of the bulb holder 10 to form a storage space. space. The accommodating space can accommodate the LED module 2 and the circuit board 3, wherein the LED module 2 is composed of an LED lamp board 20, a reflective wall 22, a radiator 23, and a cooling fan 24. The LED lamp board 20 is provided with a predetermined number (one is shown in the figure) of LED lamps 21, and the terminal contact 210 of the LED lamp 21 is fixedly bonded to the upper plane 230 of the heat sink 23, and the surface of the LED lamp board 20 connected with the heat sink can be coated with a heat-conducting Paste, can increase the contact area and heat conduction efficiency between the two. The periphery of the LED lamp 21 is surrounded by a reflective wall 22. The reflective wall 22 is a multi-layer structure, the outer layer is made of aluminum metal, and the inner arc surface is made of a reflective film layer 220. Its shape is designed as a funnel structure. The bottom surface 221 of the lower end has a hole 222 for the LED lamp 21 to be placed in the reflective wall 22. The opening edge of the reflective wall 22 is attached to the inner wall of the bulb holder 10 to separate the accommodation space into a light source refraction space 25 and an airflow flow space 26. A closed space; at the end of the thermal conduction column 231 extended at the other end of the heat sink 23, a heat dissipation fan 24 is configured and combined, so as to provide air volume directly acting on the heat conduction column 231 of the heat sink 23, and the heat energy collected by the heat conduction column 231 Guided by the air flow space 26, the heat energy is quickly dissipated from the heat dissipation hole 101 to the outside of the lamp for cooling; while the circuit board 3 is fixed on the lower end of the bulb holder 10 with insulating glue 30 and connected to the power contact to form an electrical path. The board 3 converts the power supply at the outer end of the bulb holder 10 to an appropriate DC power supply and transmits it to the LED lamp board 20 and the heat dissipation fan 24, so that the LED light is actuated and illuminated, and the heat dissipation fan 24 is started to supply air for cooling.

Please refer to Fig. 4 again, after the LED lamp 21 of the light bulb receives power and starts to emit light, the light source is reflected and diffused by the reflective film layer 220 coated on the inner surface of the reflective wall 22, and the light source is uniformly projected to the light source diffusion layer 11 of the inner layer of the lampshade 1 , and then through the second refraction and diffusion of the light source diffusion layer 11 and the light source refraction space 25 to close the space, so as to concentrate the luminosity of the LED lamp 21 and improve its luminous brightness for lighting purposes; The heat energy generated during the action will be conducted to the heat-conducting columns 231 and the large area of the outer aluminum metal of the reflective wall 22 through the plane of the attached heat sink 23 to collect heat and temperature, and then use the heat dissipation fan 24 to directly send air to the heat dissipation Each heat conduction column 231 of the body 23 guides the heat energy with the air flow space 26, and quickly dissipates the heat energy from the cooling hole 101 to the outer edge of the lamp, quickly reducing the high temperature generated by the LED lamp 21, and achieving the effect of protection.

Referring to FIG. 7 , it is another embodiment of the reflective wall 22 , and the shape of the reflective wall 22 is mainly designed as a funnel shape of the slope 4 .

As shown in Fig. 8 and Fig. 9, it is another embodiment of the present utility model, mainly at the outer end of the heat sink 23, a filter screen 5 and a cooling fan 50 are arranged, and the cooling air at the outer end is filtered through a movable type through the cooling fan 50. The net 5 pre-filters the dust outside the lamp, and then blows the clean cold air directly towards the heat conduction column 231, in addition to guiding the heat energy along with the air flow space 26, and quickly dissipates it from the heat dissipation hole 101 to the outer edge air, quickly reducing the LED lamp 21 The high temperature generated achieves the effect of protection, prevents dust accumulation inside the lamp, and maintains the service state and life of internal parts.

Claims (8)

1. A safe and high-brightness LED lamp, comprising a lampshade, a bulb holder, an LED module, and a circuit board; it is characterized in that, A lampshade in the form of a hollow housing with an opening, with a diffuse reflection layer attached to its inner surface, the opening of the hollow housing is combined with the bulb holder with the same opening to form an accommodating space for placing the LED module; An LED module is composed of a heat sink, LED light board and reflective wall. One end of the heat sink has a plane for the LED light board to be flattened and combined with the reflective wall. The reflective wall is surrounded by the LED light board. For LED lamps, the accommodating space is divided into two spaces: light source refraction space and airflow flow space; and a heat dissipation fan is fixed at the outer end of the heat dissipation column of the heat dissipation body; A circuit board is fixed on the lower end of the inner edge of the bulb holder and connected to the power contact, and then communicated with the cooling fan and the LED lamp board respectively. 2. The safe and high-brightness LED lamp according to claim 1, wherein the outer edge of the bulb holder is provided with a ventilation hole corresponding to its cooling fan. 3. The safe and high-brightness LED lamp according to claim 1, wherein the reflective film is attached to the inner layer of the reflective wall of the LED module, and the outer layer is made of aluminum. 4. The safe and high-brightness LED lamp according to claim 1, wherein the reflective wall of the LED module is a funnel-shaped structure with enlarged holes. 5. The safe and high-brightness LED lamp according to claim 1, characterized in that the cooling fan at the outer end of the cooling column of the cooling body is additionally equipped with a filter. 6. The safe and high-brightness LED lamp according to claim 3, wherein the reflective wall has a sloped surface. 7. The safe and high-brightness LED lamp according to claim 3, wherein the reflective wall has a curved surface structure. 8. The safe and high-brightness LED lamp according to claim 3, wherein the edge of the reaming opening of the reflective wall is smaller than the diameter of the inner wall of the bulb holder.

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