TWI565910B - LED explosion - proof lamps - Google Patents

Description

LED explosion-proof lamps

The invention relates to an explosion-proof lighting fixture, in particular to an LED lamp which is provided with a stereo base and an optical lens inside the lamp, and can improve the light shape to uniformly distribute the projection light.

With the rapid development of industry, people in the petroleum, chemical, mining and other industries often need to work in dangerous places containing explosive gases. Traditional general lighting fixtures are prone to accidents caused by high heat or electric sparks that come into contact with explosive gases or dust. Explosive explosions, so explosion-proof lighting fixtures have been used more and more widely in these dangerous places, and the variety has also increased.

Explosion-proof lamps are classified into explosion-proof incandescent lamps, explosion-proof high-pressure mercury lamps, explosion-proof low-pressure fluorescent lamps, hybrid light sources, LEDs, etc. according to the selected light source. Although the explosion-proof incandescent lamps still have more use, they have low luminous efficiency and short life. It is gradually being replaced by other light sources. Therefore, the LED light source, which is more common in modern times, is taken as an example. LEDs are known to have high efficiency, safety, energy saving, environmental protection, long life, fast response, and high color rendering index in lighting applications. High-power LEDs are powered by low-voltage DC and are a safer source than high-voltage power supplies, making them ideal for use in places where high levels of public safety are required. Although the LED light source has many of the above advantages, it has inevitable problems in physical properties. Since the LED light source has directivity, if the secondary optical design is not performed, there will be a problem that the light distribution of the emitted light is excessively concentrated. The traditional practice is to increase the illumination area by designing a reflective cup wall or a wave-shaped reflective wall on the luminaire. However, this method also causes a problem of insufficient uniformity of light shape. If a soft light sheet is added to improve the uniformity problem, Will derive brightness Low and waste of luminous efficiency.

Therefore, the inventor conceived a special structure of LED explosion-proof lamps, and hopes to solve the above-mentioned drawbacks when using LED as an explosion-proof lighting source.

An object of the present invention is to provide an LED explosion-proof lamp which is widely distributed by an optical lens and a three-dimensional trapezoidal base, and has uniform brightness distribution, and can fully utilize the light emitted by the LED; and the LED explosion-proof lamp There is a power supply module inside, and there is a fixed device on the outside. It can be directly connected to the external power supply after the assembly. It is not necessary to install the fixed bracket and electrical connection components in the indoor space. The LED explosion-proof lamps are installed after construction. The current can be supplied to the luminaire through the plug, which greatly improves the convenience of installation and use.

Another object of the present invention is to provide an LED explosion-proof lamp, which is coated with a large-area heat-dissipating coating on the inner and outer surfaces of the metal lamp housing, thereby facilitating the rapid dissipation of the power supply module and the light-emitting module. Heat, the effect of effective cooling.

In order to achieve the above objective, the LED explosion-proof lamp of the present invention has a lamp housing, a plurality of light-emitting modules, a power supply module, a glass cover and a fixing device, wherein the lamp housing is provided with an opening, and the lamp The housing is configured to receive the lighting module and the power supply module. The lighting module is electrically connected to the power supply module. The glass cover covers the opening, and the fixing device is connected to the lamp housing. The bottom of the lamp housing has a three-dimensional trapezoidal base, the three-dimensional trapezoidal base includes a first plane, a second plane and a third plane, the first plane, the second plane and the first The three-plane system is provided with the light-emitting modules, each of the light-emitting modules includes an LED substrate, and the LED substrate is provided with a plurality of light-emitting diode units and at least one optical lens, and the optical lens cover Provided on the light emitting diode units, and adjusted by the optical lenses The light projected by the light-emitting diode units is formed into a wing-shaped light shape, so that the intensity distribution of both sides and the center of the light-shaped surface of the projected object surface or the ground is uniform.

Wherein, a metal outer frame is disposed on the glass cover to enhance the strength and rigidity of the glass cover and the lamp housing. The metal outer frame surface, the inner and outer surfaces of the lamp housing are coated with a heat dissipation coating. In order to enhance the heat dissipation effect, the metal frame is equidistantly provided with a plurality of hexagonal screw holes for locking a plurality of hexagonal screws conforming to safety specifications to lock the glass cover.

By the above method, the invention has many advantages such as rapid heat dissipation, wide light distribution, uniform brightness, high energy utilization efficiency and the like.

[Preferred embodiment]

1‧‧‧LED explosion-proof lamps

10‧‧‧Light shell

101‧‧‧ openings

102‧‧‧Three-dimensional trapezoidal base

1021‧‧‧ first plane

1022‧‧‧ second plane

1023‧‧‧ third plane

103‧‧‧Metal frame

1031‧‧‧hex screw holes

1032‧‧‧ hexagonal screws

11‧‧‧Lighting module

110‧‧‧LED substrate

1101‧‧‧ Screw keyhole

1102‧‧‧Lighting diode unit

1103‧‧‧ optical lens

1104‧‧‧ screws

12‧‧‧Power supply module

13‧‧‧ glass cover

14‧‧‧Fixed devices

141‧‧‧ joints

15‧‧‧ Thermal coating

V‧‧‧ horizontal direction light distribution curve

H‧‧‧Vertical light distribution curve

Figure 1 is an exploded perspective view of a preferred embodiment of the present invention.

2 is a perspective view of a three-dimensional assembly of a preferred embodiment of the present invention.

Figure 3 is a cross-sectional, cross-sectional view of a preferred embodiment of the present invention.

Fig. 4 is a view showing a projection light shape measurement according to a preferred embodiment of the present invention.

In order for your review board to have a clear understanding of the contents of the present invention, please refer to the following description.

Please refer to Figures 1, 2 and 3, which are perspective exploded view, perspective assembled view and cross-sectional view of a preferred embodiment of the present invention. The LED explosion-proof lamp 1 of the present invention has a lamp housing 10, a plurality of lighting modules 11, a power supply module 12, a glass cover 13 and a fixing device 14, wherein the fixing device 14 is connected to the lamp housing 10 The lamp housing 10 is provided with an opening 101 as a light-emitting surface, and the lamp housing 10 is configured to receive the light-emitting module 11 and the power supply module. The light-emitting module 11 is electrically connected to the power supply module 12 , and the glass cover 13 covers the opening 101 of the lamp housing 10 .

The LED explosion-proof lamp 1 is characterized in that the inner bottom of the lamp housing 10 has a three-dimensional trapezoidal base 102. The three-dimensional trapezoidal base includes a first plane 1021, a second plane 1022 and a third plane 1023. A plane 1021, a second plane 1022, and a third plane 1023 are provided for locating the light-emitting modules 11. Each of the light-emitting modules 11 includes an LED substrate 110, and one side of the LED substrate 110 has A plurality of screw locking holes 1101 and a plurality of LED units 1102 are arranged at intervals, and a plurality of optical lenses 1103 are disposed on the LED unit 1102. The screw locking holes 1101 are for a plurality of The screws 1104 pass through and lock the LED substrates 110, and the optical lenses 1103 adjust the light projected by the light-emitting module 11 to form a wing-shaped light shape to achieve the light shape when projected onto the surface of the object or the ground. The brightness of both sides and the center is evenly distributed, and the light emitted from the light-emitting diode units 1102 is fully utilized.

In addition, the LED explosion-proof lamp 1 further has a metal outer frame 103 disposed on the glass cover 13 to enhance the strength and rigidity of the glass cover 13 and the lamp housing 10, and the surface of the metal frame 103 and the lamp housing The inner and outer surfaces of the 10 are coated with a heat-dissipating coating 15 , which can help the LED explosion-proof lamp 1 to quickly dissipate the heat generated by the power supply module 12 and the light-emitting module 11 to achieve the effect of controlling temperature, not only The use of the heat-dissipating coating 15 can improve the traditional use of a large number of heat sinks outside the lamp housing 10 to increase the safety of the use of the light-emitting module 11 and the power supply module 12. The metal frame 103 is equidistantly disposed with a plurality of hexagonal screw holes 1031 for latching a plurality of hexagonal screws 1032 that meet the safety specifications to lock the glass cover 13.

As shown in FIG. 3, a cross-sectional view of a preferred embodiment of the present invention is disclosed. The figure shows that the three-dimensional trapezoidal base 102 is characterized by the first plane 1021, the second plane 1022, the third plane 1023, and The special arrangement angle between the lamp housing 10 and the light-emitting module 11 and the optical lens 1103 are superimposed thereon, whereby the light projected by each of the light-emitting modules 11 can be made by the mechanism. The light can be emitted in different directions, and the light exiting path can be corrected by the optical lens 1103 to avoid being obscured by the lamp housing 10 or superimposed on each other to cause a bright and dark portion of the light shape.

As shown in Fig. 4, the projected light shape measurement chart of the preferred embodiment of the present invention has a specific directivity due to the refracting of the light through the optical lens 1103, and then different illuminances are formed at different angles to form a specific wing. Shape light distribution. As shown in the figure, a vertical light distribution curve V and a horizontal light distribution curve H of an illumination region are defined, which are displayed after the light emitted by the light-emitting diode units 1102 passes through the optical lenses 1103. The resulting refraction effect is such that the projected illumination regions correspond to the bilaterally symmetrical wing-shaped light shapes, thereby allowing the overall illumination region to be more efficiently projected onto the plane, thereby improving operational efficiency.

In addition, in the embodiment, the fixing device 14 connected to the outside of the lamp housing 10 is provided with a joint portion 141 and an external object (not shown) for simple engagement through the latch, thereby a simple mechanism. The fixed effect is achieved, so that the LED explosion-proof lamp 1 has the advantages of easy installation and flexible application method, and can be widely installed in a variety of applications.

In summary, the LED explosion-proof lamp 1 described in the embodiment has specifically and clearly disclosed the characteristics of the present invention, wherein the coating of a large area of the heat-dissipating coating 15 replaces the conventional method of disposing a plurality of heat-dissipating fins. Not only can it maintain good heat dissipation, but also has the advantages of simple appearance, easy to accumulate dust and light weight, and the first flat of the three-dimensional trapezoidal base 102 The special arrangement angle of the surface 1021, the second plane 1022 and the third plane 1023 can make the light distribution more widely, and the practical application is more practical. Moreover, by setting the optical lens 1103, the light shape is corrected. The emitted light is formed into a wing-shaped light shape, and when projected onto the surface or the ground of the object, the brightness distribution on both sides and the center of the light shape is uniform, the light is not superimposed on each other, and the energy use efficiency is improved.

However, the above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention; therefore, equivalent changes and modifications may be made without departing from the spirit and scope of the invention. Within the scope of the patent of the present invention.

1‧‧‧LED explosion-proof lamps

10‧‧‧Light shell

101‧‧‧ openings

102‧‧‧Three-dimensional trapezoidal base

1021‧‧‧ first plane

1022‧‧‧ second plane

1023‧‧‧ third plane

103‧‧‧Metal frame

1031‧‧‧hex screw holes

1032‧‧‧ hexagonal screws

11‧‧‧Lighting module

110‧‧‧LED substrate

1101‧‧‧ Screw keyhole

1102‧‧‧Lighting diode unit

1103‧‧‧ optical lens

1104‧‧‧ screws

12‧‧‧Power supply module

13‧‧‧ glass cover

14‧‧‧Fixed devices

141‧‧‧ joints

15‧‧‧ Thermal coating

Claims (8)

An LED explosion-proof lamp having a lamp housing, a plurality of light-emitting modules, a power supply module, a glass cover and a fixing device, wherein the lamp housing is provided with an opening, and the lamp housing is configured to receive the The light-emitting module and the power supply module are electrically connected to the power supply module, the glass cover covers the opening, and the fixing device is connected to the lamp housing, wherein the lamp housing is The inner bottom portion has a three-dimensional trapezoidal base, the three-dimensional trapezoidal base includes a first plane, a second plane and a third plane, the first plane being parallel to the lamp housing, the second plane and the third The planes are not parallel and are the two sides of the three-dimensional ladder base. The first plane, the second plane and the third plane are respectively provided with the light-emitting modules, and each of the light-emitting modules is arranged There is at least one optical lens, and the optical lens is used to adjust the shape of the light projected by the light-emitting module to achieve uniform brightness distribution and complete use of the emitted light. For example, the LED explosion-proof lamp described in claim 1 has a metal outer frame disposed on the glass cover. The LED explosion-proof lamp of claim 2, wherein the surface of the metal frame, the inner and outer surfaces of the lamp casing are coated with a heat-dissipating coating to improve heat dissipation efficiency. The LED explosion-proof lamp of claim 3, wherein the metal frame further has a plurality of hexagonal screw holes for locking the glass cover. The LED explosion-proof lamp of claim 4, wherein the hexagonal screw holes are equidistantly disposed on the metal frame. The LED explosion-proof lamp of claim 1, wherein each of the light-emitting modules comprises an LED substrate, wherein the LED substrate has a plurality of screw locking holes and a plurality of light-emitting diode units. The LED explosion-proof lamp of claim 6, wherein the optical lens cover is disposed on the light-emitting diode unit. The LED explosion-proof lamp of claim 7, wherein the screw holes and the light-emitting diode units are arranged on the LED substrate at equal intervals.