CN205979676U - Lighting lamp - Google Patents

Abstract

The utility model discloses an illumination lamp, including a lamp body, a fan, a radiator and a light engine. The lamp housing comprises an air inlet hole, an air outlet hole and an illumination hole. The fan is arranged in the lamp shell and comprises an air inlet corresponding to the air inlet hole and an air outlet communicated with the air outlet hole. The radiator is provided with a plurality of radiating fins which are respectively arranged corresponding to the air outlet and the direction of the air outlet. One side of the light engine is attached to one plane of the radiator, and the other side of the light engine is arranged towards the direction of the lighting hole. Therefore, the active heat dissipation mode is utilized, and the heat dissipation effect is effectively improved.

Description

lighting fixtures

technical field

The utility model relates to a lighting fixture, in particular to a lighting fixture which effectively improves the heat dissipation effect by using an active cooling method.

Background technique

Light Emitting Diode (LED) has been widely used in lighting fixtures in various places, especially for high-power lighting fixtures, such as fishing lights for fishing boats, searchlights for ships/ports, lighting lights for large stadiums, stage lights , street lights, decorative lights or advertising lights, etc., all use high-power LED lights. Due to the high brightness of the unit light emitted by high-power lamps, relatively, high-power lamps will generate a lot of heat during operation, which will cause the shell of the lamp or the lamp holder of the LED lamp to melt due to high temperature, or cause the high-power LED lamp to burn due to high heat. And damage, leading to the problem that the LED lamp group fails and cannot be used.

The existing high-power LED lamps are limited in the development of high-power lamps due to insufficient heat dissipation. For some high-power LED lamps, in order to install a heat dissipation module, the assembly process is often complicated, the volume is large, and the heat dissipation effect is not good. It is indeed necessary to improve it.

Utility model content

In order to solve the above technical problems, one of the purposes of the present utility model is to provide a lighting fixture that effectively improves the heat dissipation effect by using an active heat dissipation method.

Another object of the present invention is to provide a lighting fixture with effectively reduced volume.

The lighting fixture provided by the utility model includes:

A lamp housing, including an air inlet hole, an air outlet hole and a lighting hole;

A fan is arranged in the lamp housing, and the fan includes an air inlet corresponding to the air inlet and an air outlet connected to the air outlet;

A heat sink has a plurality of heat dissipation fins, and each heat dissipation fin is arranged corresponding to the direction of the air outlet and the air outlet of the fan; and

One side of a light engine is attached to a plane of the heat sink, and the other side is arranged toward the direction of the lighting hole.

As a preferred technical solution, the lamp housing further includes a first housing and a second housing that are covered with each other.

As a preferred technical solution, the first housing is also provided with a first column, a first hole, a second hole corresponding to the first hole, and a first exhaust hole perpendicular to the direction of the first hole , the second casing is provided with a second post, a third hole, a fourth hole corresponding to the third hole, and a second exhaust hole perpendicular to the direction of the third hole.

As a preferred technical solution, the above lighting fixture further includes an electrical connector assembled on the first column portion and the second column portion.

As a preferred technical solution, the above lighting fixture further includes an electrical connector connected to one end of the lamp housing, wherein the electrical connector extends in a direction perpendicular to or parallel to the lighting direction of the lighting hole.

As a preferred technical solution, the lamp housing further includes two first clamping blocks and two second clamping blocks, each of the first clamping blocks is used for positioning the fan, and each of the second clamping blocks is used for positioning the light engine.

As a preferred technical solution, the light engine also includes:

a vapor chamber attached to the plane of the radiator;

a light emitting module, one surface of the light emitting module is against one side of the chamber; and

A frame covers the uniform temperature plate and the light emitting module, and is positioned on the heat sink.

As a preferred technical solution, the light emitting module further includes a circuit board and at least one LED electrically coupled with the circuit board.

As a preferred technical solution, the above-mentioned lighting fixture further includes a cover plate for positioning the temperature chamber and the light emitting module, and a waterproof pad stacked on the cover plate.

As a preferred technical solution, one side of the cover plate positions the temperature chamber, and the other side engages the waterproof pad.

As a preferred technical solution, the cover plate further includes a first through hole, and the waterproof pad includes a second through hole corresponding to the first through hole, and the size of the first through hole corresponds to the size of the light emitting module.

As a preferred technical solution, the above lighting fixture further includes a lens disposed between the frame and the light emitting module.

As a preferred technical solution, the frame further includes a third through hole corresponding to the lighting hole.

As a preferred technical solution, the fan is an axial fan.

The utility model also has the following advantages: the arrangement direction of the heat dissipation fins of the radiator is perpendicular to the air outlet, so that the airflow blown by the fan can quickly blow the waste heat generated by the radiator away from the air outlet, and will not be caused by the heat dissipation fins or the air outlet. The blocking of other components increases the ambient temperature, so the heat dissipation effect of this embodiment is good. The groove of the waterproof gasket of the light engine can engage with the flange of the lens, so that water vapor will not penetrate into the light engine through the frame, so as to increase the waterproof effect.

Description of drawings

FIG. 1 is an exploded view illustrating a first preferred embodiment of the present invention.

FIG. 2 is an exploded schematic view showing the heat sink and the light engine of the first preferred embodiment of the present invention.

FIG. 3 is a perspective view illustrating a first preferred embodiment of the present invention.

FIG. 4 is another perspective view illustrating the first preferred embodiment of the present invention.

FIG. 5 is a cross-sectional view illustrating a first preferred embodiment of the present invention.

FIG. 6 is another cross-sectional view illustrating the first preferred embodiment of the present invention.

FIG. 7 is a perspective view illustrating a second preferred embodiment of the present invention.

FIG. 8 is another perspective view illustrating the second preferred embodiment of the present invention.

【Symbol Description】

100 lighting fixture; 110 lamp shell; 112 air inlet hole; 114 air outlet hole; 116 lighting hole; 117 first clamping block; 118 second clamping block; 120 first shell; 1 hole; 126 second hole; 128 first vent hole; 130 second shell; 132 second column; 134 third hole; 136 fourth hole; 138 second vent hole; 140 electrical connector; 150 Fan; 152 air inlet; 154 air outlet; 156 fan blade; 158 shaft; 160 radiator; 162 cooling fin; 164 plane; 170 light engine; Frame; 202 third perforation; 210 cover plate; 212 first perforation; 220 waterproof gasket; 222 second perforation; 224 groove; 230 lens; 232 flange.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the utility model and implement it, but the examples given are not intended to limit the utility model.

As shown in FIG. 1 to FIG. 6 , they are diagrams illustrating the first preferred embodiment of the present utility model. The utility model provides a lighting fixture 100 , which includes a lamp housing 110 , a fan 150 , a radiator 160 and a light engine 170 . The lighting fixture 100 described herein is preferably applied to a fishing lighting fixture or a searchlight lighting fixture at sea, on a ship or on shore. However, in other different embodiments, the lighting fixture 100 can also be applied to stadium/store lighting, stage lighting, street lighting, decorative lighting, or advertising billboard lighting, etc., and is not limited thereto.

The lamp housing 110 includes an air inlet 112 , an air outlet 114 and an illumination hole 116 . In the first preferred embodiment, the lamp housing 110 further includes a first housing 120 and a second housing 130 that cover each other. The first casing 120 further defines a first column portion 122 , a first hole 124 , a second hole 126 corresponding to the first hole 124 , and a first exhaust hole 128 perpendicular to the direction of the first hole 124 . The second casing 130 is provided with a second column portion 132 , a third hole 134 , a fourth hole 136 corresponding to the third hole 134 , and a second exhaust hole 138 perpendicular to the direction of the third hole 134 . The first housing 120 and the second housing 130 are covered and then screwed together with fixing components such as bolts.

In the embodiment shown in FIGS. 3 to 6 , the first hole 124 and the third hole 134 correspond to each other and are covered to form the above-mentioned air inlet hole 112 , and the second hole 126 and the fourth hole 136 correspond to each other and are covered. The above-mentioned illumination hole 116 is formed. The first exhaust hole 128 and the second exhaust hole 138 are the aforementioned air outlet holes 114 , that is, this embodiment preferably has two corresponding air outlet holes 114 . The shape of the covered air inlet hole 112 and the air outlet hole 114 is preferably a rectangle, and the shape of the lighting hole 116 is preferably a circle, but the shape is not limited by this embodiment.

This embodiment also includes an electrical connector 140 assembled on the first column portion 122 and the second column portion 132 . The electrical connector 140 shown in the figure is preferably an external threaded connector to be screwed to a socket (not shown). However, in other different embodiments, the electrical connector 140 can also be a plug (not shown), which is directly inserted into the socket (not shown). In addition, as shown in FIG. 4 or FIG. 6 , the extending direction of the electrical connector 140 is preferably perpendicular to the lighting direction of the lighting hole 116 . However, in the embodiment shown in FIG. 7 and FIG. 8 , the extending direction of the electrical connector 140 may also be parallel to the lighting direction of the lighting hole 116 . Therefore, the lighting direction of the lighting hole 116 of the lamp housing 110 can be changed as required and is not limited.

The fan 150 is disposed inside the lamp housing 110 , and the fan 150 includes an air inlet 152 corresponding to the air inlet 112 and an air outlet 154 communicating with the air outlet 114 . The fan 150 in this embodiment is preferably an axial fan, that is, the direction of the air inlet 152 is parallel to the direction of the axis 158 of the fan 150 . The heat sink 160 has a plurality of heat dissipation fins 162 , and each heat dissipation fin 162 is disposed corresponding to the directions of the air outlet 154 and the air outlet 114 of the fan 150 . Further, the top surface of each cooling fin 162 is set corresponding to the air outlet 154 of the fan 150, and the side surface of each cooling fin 162 is respectively set corresponding to the air outlet hole 114 of the lamp housing 110, and the direction of the air outlet 154 is consistent with the air outlet. The direction of the wind hole 114 is exactly right angle.

When the lighting fixture 100 of this embodiment is in use, the fan blade 156 of the fan 150 rotates and introduces the wind from the air inlet 112 into the lamp housing 110, and flows toward the heat dissipation fins 162 of the radiator 160 until the heat dissipation fins The waste heat generated by the sheet 162 is taken away from the air outlet 114 , as shown in FIG. 5 and FIG. 6 . In particular, the arrangement direction of each cooling fin 162 is perpendicular to the two air outlet holes 114, so that the airflow blown out by the fan 150 can quickly blow the waste heat generated by the radiator 160 away from the air outlet hole 114, and will not be caused by each cooling fin 162. or other components to increase the ambient temperature, so the heat dissipation effect of this embodiment is good.

Please refer to FIG. 2, FIG. 5 and FIG. 6 together. The heat sink 160 is preferably made of aluminum extruded profile, copper or other suitable metal composite materials with good thermal conductivity. The side is a smooth plane 164 . One side of the light engine 170 is attached to the plane 164 of the heat sink 160 , and the other side is disposed toward the direction of the lighting hole 116 .

As shown in FIG. 2 , the light engine 170 further includes a temperature equalization plate 180 , a light emitting module 190 and a frame 200 . The vapor chamber 180 containing the working fluid (not shown) and capillary structure (not shown) is attached to the plane 164 of the heat sink 160, and one surface of the light emitting module 190 is closely against one side of the vapor chamber 180, so that the light emitting module The waste heat generated by 190 can be thermally conducted to radiator 160 via vapor chamber 180 . The frame 200 covers the vapor chamber 180 and the light emitting module 190 , and is positioned on the heat sink 160 by fixing components such as bolts.

In the embodiment shown in FIG. 2 , the light emitting module 190 further includes a circuit board 192 and at least one LED 194 electrically coupled to the circuit board 192 . The light engine 170 also includes a cover plate 210 for positioning the temperature chamber 180 and the light emitting module 190 , a waterproof gasket 220 stacked on the cover plate 210 , and a lens 230 disposed between the frame 200 and the light emitting module 190 . As shown in FIG. 5 and FIG. 6 , one side of the cover plate 210 made of plastic or metal locates the temperature chamber 180 , and the other side engages the waterproof pad 220 . The cover plate 210 also includes a first through hole 212 , and the waterproof pad 220 includes a second through hole 222 corresponding to the first through hole 212 , and the size of the first through hole 212 corresponds to the size of the light emitting module 180 . The frame 200 also includes a third through hole 202 corresponding to the lighting hole 116 , so that the light of the LED passes through the lens 230 more uniformly and irradiates from the third through hole 202 with a larger angle.

In addition, the edge of the waterproof pad 220 preferably made of rubber or silica gel also has a groove 224, and the edge of the lens 230 is a flange 232, so that the groove 224 of the waterproof pad 220 can cover the flange 232 of the lens 230, Water vapor will not infiltrate into the light engine 170 through the third through hole 202 to increase the waterproof effect and relatively increase the service life of the light emitting module 190 .

Please refer to FIG. 7 and FIG. 8 together, which are perspective views from different angles illustrating the second preferred embodiment of the present invention. In this embodiment, the main difference from the first embodiment is that the electrical connector 140 is connected to one end of the lamp housing 110 , that is, its extending direction is parallel to the lighting direction of the lighting hole 116 . Since the electrical connector 140 is assembled in the direction of the air inlet hole 112 of the lamp housing 110, the position of the original air inlet hole 112 must be shifted to both sides of the electrical connector 140, that is, between the first housing 120 and the second housing 130. The air inlet hole 112 is arranged on both sides above the air inlet 152 close to the fan 150, so that the fan 150 can guide the air flow into the lamp housing 110 through the air inlet hole 112.

In particular, it should be noted here that the lamp housing 110 also includes two first clamping blocks 117 and two second clamping blocks 118, each first clamping block 117 is used for stably positioning the fan 150, each second clamping block Block 118 provides for stable positioning of light engine 170 . Each first clamping block 117 and each second clamping block 118 are preferably integrally formed protrusions from the inner walls of the first housing 120 and the second housing 130, and their structures may also be convex lines or other suitable shapes. Not limited.

Therefore, the utility model utilizes the combination of the fan 150, the heat sink 160 and the vapor chamber 180 to actively transfer the heat generated by the LED of the light emitting module 190 to the heat dissipation fins in the form of thermal contact conduction (Conduction Heat Transfer). The sheet 162 transfers the heat to the outside of the lamp housing 110 by convection heat transfer, which effectively improves the heat dissipation effect of the lighting fixture 100 of the present invention.

In addition, the lighting fixture 100 of the present invention adopts an active heat dissipation method, which can effectively reduce the overall volume of the lamp housing 110 compared with the existing lamps that only use heat dissipation fins as a heat dissipation method.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the utility model, and the protection scope of the utility model is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present utility model are all within the protection scope of the present utility model. The scope of protection of the utility model shall be determined by the claims.

Claims (14)

1. A lighting fixture, characterized in that, comprising: A lamp housing, including an air inlet hole, an air outlet hole and a lighting hole; A fan is arranged in the lamp housing, and the fan includes an air inlet corresponding to the air inlet and an air outlet connected to the air outlet; A heat sink has a plurality of heat dissipation fins, and each heat dissipation fin is arranged corresponding to the direction of the air outlet and the air outlet of the fan; and One side of a light engine is attached to a plane of the heat sink, and the other side is arranged toward the direction of the lighting hole. 2. The lighting fixture as claimed in claim 1, wherein the lamp housing further comprises a first housing and a second housing that cover each other. 3. The lighting fixture according to claim 2, wherein the first housing is further provided with a first post, a first hole, a second hole corresponding to the first hole, and a second hole corresponding to the first hole. A first exhaust hole perpendicular to the direction of the hole, the second housing is provided with a second column, a third hole and a fourth hole corresponding to the third hole and perpendicular to the direction of the third hole a second vent hole. 4. The lighting fixture as claimed in claim 3, further comprising an electrical connector assembled on the first post part and the second post part. 5. The lighting fixture as claimed in claim 1, further comprising an electrical connector connected to one end of the lamp housing, wherein the electrical connector extends in a direction perpendicular to or parallel to the lighting direction of the lighting hole. 6. The lighting fixture as claimed in claim 1, wherein the lamp housing further comprises two first clamping blocks and two second clamping blocks, each of the first clamping blocks is for positioning the fan, and each of the second clamping blocks block for positioning the light engine. 7. The lighting fixture according to claim 1, wherein the light engine further comprises: a vapor chamber attached to the plane of the radiator; a light emitting module, one surface of the light emitting module is against one side of the chamber; and A frame covers the uniform temperature plate and the light emitting module, and is positioned on the heat sink. 8 . The lighting fixture according to claim 7 , wherein the lighting module further comprises a circuit board and at least one LED electrically coupled to the circuit board. 9 . The lighting fixture as claimed in claim 7 , further comprising a cover plate for positioning the temperature chamber and the light emitting module, and a waterproof pad stacked on the cover plate. 10 . 10 . The lighting fixture according to claim 9 , wherein one side of the cover plate is used to position the temperature chamber, and the other side is engaged with the waterproof pad. 11 . 11. The lighting fixture as claimed in claim 9, wherein the cover plate further comprises a first perforation, the waterproof pad comprises a second perforation corresponding to the first perforation, the size of the first perforation is related to the size of the light emitting corresponding to the module size. 12. The lighting fixture as claimed in claim 7, further comprising a lens disposed between the frame and the light emitting module. 13. The lighting fixture as claimed in claim 7, wherein the frame further comprises a third through hole corresponding to the lighting hole. 14. The lighting fixture as claimed in claim 1, wherein the fan is an axial fan.