TWI621806B - Cooling lamp holder - Google Patents

Abstract

A heat-dissipating lamp holder comprises: a thermal guiding unit, a light source platform unit, and a light guiding unit, wherein the thermal guiding unit has a long strip shape, has two semi-elliptical surfaces, a plurality of fins and at least one a venting hole, the two semi-elliptical curved surfaces are formed in the mirroring arrangement manner, and the thermal guiding unit has a mounting surface between the two semi-elliptical curved surfaces, and the light source platform unit is coupled to the mounting surface The two sides respectively extend from the opening of each of the semi-elliptical curved surfaces and form a light exiting port, and the light source platform unit further has at least one second venting hole, and the second venting hole is in communication with the first venting hole; The light guiding unit comprises at least two light guide plates arranged face to face, each of the light guide plates engaging a second edge corresponding to the semi-elliptical curved surface; thereby the lamp holder of the invention is applied to the indirect lighting fixture and can be illuminated Symmetrical light type with good heat dissipation.

Description

Cooling lamp holder

The invention is a heat-dissipating lamp holder, in particular to a design capable of providing indirect illumination of a symmetrical light type, and also having a good heat dissipation effect.

In recent years, most of the lamps use the light-emitting diode as the main light source, and the distribution of the rectangular array is used to achieve the required brightness. However, the light-emitting diode is a point light source, and the user may directly cause disability glare, and the power is too large. I am afraid it will affect my eyesight. At present, the common practice in the industry is to sand the glass on the light exit port or use a translucent acrylic plate (such as PC board, plastic board, etc.) to reduce the damage and protection of the eyes caused by the user directly looking at the light-emitting diode. Safe, but this will cause loss of luminous flux.

Therefore, some manufacturers use reflective indirect illumination. The principle is to project light onto a reflecting surface that is different from the direction of the light exiting port. Through the reflection of the reflecting surface, the guiding light is finally projected through the light exiting port. However, there are two such indirect illuminations. The problem must be overcome: First, if the reflection method is not designed, the luminous flux loss is too large; Second, the illumination type is easy to produce offset, as shown in Figure 8, the thick line in the figure is the light distribution map of the vertical surface of the lamp. The thin line is the light distribution map of the parallel faces of the lamps. When the installation height and angle of such lamps are deviated, the brightness of the lighting area will be affected. When installing such lamps, the installers must have considerable technology or additional The light-correcting action is time-consuming and labor-intensive, reducing the user's willingness to use.

The main object of the present invention is to provide a heat-dissipating lamp holder. When the lamp is made into indirect illumination, the lamp has the design of the maximum luminous flux of the lamp, and is a symmetrical illumination type, which satisfies the user's needs and has good both. Cooling effect.

To achieve the above objective, the present invention comprises: a thermal transfer unit, a light source platform unit and a light guiding unit, the thermal guiding unit has an elongated shape, has two semi-elliptical curved surfaces, a plurality of heat dissipating fins and at least one a first venting hole, two of the semi-elliptical curved surfaces are formed in the mirroring arrangement, and each of the semi-elliptical curved surfaces has two sides, the first edge is close to the middle of the thermal guiding unit, and the second edge is away from the middle Position, the thermal transfer unit has a mounting surface between the two first edges, the first venting hole is distributed on the mounting surface and penetrates the thermal guiding unit. The light source platform unit is coupled to the mounting surface of the thermal transfer unit, and a first edge of each of the semi-elliptical curved surfaces is respectively extended on both sides, and a light exit port is formed between the light source platform unit and the light source platform unit. At least one second vent hole, the second vent hole is in communication with the first vent hole; the light guiding unit comprises at least two light guide plates disposed face to face, each of the light guide plates engaging with the corresponding semi-elliptical curved surface The second edge; the structure is applied to the indirect lighting fixture, which can illuminate the symmetrical light type and at the same time has a good heat dissipation effect.

The light source platform unit is provided with a light emitting diode module, and the light emitting diode module comprises a metal substrate and a plurality of light emitting diodes distributed thereon, wherein the light emitting diodes are located at a position One of the focal points of the semi-elliptical surface. Thereby, the light is reflected once, the loss of Luminous flux is reduced, and the point source is changed to a surface light source to make the light softer. For such an indirect lighting fixture, the design of the maximum luminous flux of the lamp can be output.

The two semi-elliptical surfaces of the thermal transfer unit are arranged in a mirror image manner, and the two light exit ports are located on the outer side, not at the intermediate position, so that the light reflected by the two elliptical curved surfaces can be fused. Get an ideal symmetrical light pattern.

The light guiding unit is used for reshaping the output light pattern, and the light guiding plate may be a slope or a curved surface. In order to meet the height and angle requirements of the luminaire during installation, the design can achieve the optimal illumination range by changing the inclination angle and height of the slope or adjusting the curvature of the curved surface to meet different lighting requirements.

The thermal transfer unit and the light source platform unit are made of a metal material having a high conductivity. The large-area and volume design of the light source platform unit, the heat energy generated after the light-emitting diode is brightened is quickly transmitted to the entire light source platform unit and the thermal transfer unit, and finally the heat-dissipating fins exchange heat with the outside air to reach Excellent heat dissipation.

The heat-dissipating lamp holder of the present invention has a plurality of first vent holes and second vent holes penetrating inside and outside. When the lamp is made, the air in the lamp holder rises along the vertical first vent hole and the second vent hole. Or falling, causing the phenomenon of enhanced convection of the air. This chimney effect helps the air convection inside and outside the luminaire to improve the heat dissipation speed.

The embodiments of the present invention will be described in more detail below with reference to the drawings and the <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt;

1‧‧‧ lamp holder

11‧‧‧Interface

2‧‧‧ Thermal Transfer Unit

21‧‧‧Semi-elliptical surface

211‧‧‧ first edge

212‧‧‧ second edge

22‧‧‧ Heat sink fins

23‧‧‧First vent

25‧‧‧Light outlet

3‧‧‧Light source platform unit

31‧‧‧second vent

4‧‧‧Light guide unit

41‧‧‧Light guide plate

411‧‧‧ Groove

42‧‧‧Light guide plate

421‧‧‧ Groove

5‧‧‧Lighting diode module

6‧‧‧Shell

61‧‧‧heating runner

7‧‧‧ side cover

8‧‧‧Dust protection sheet

1 is a perspective view of a partial cross-section of the present invention; FIG. 2 is an enlarged cross-sectional view of FIG. 1 of the present invention; FIG. 3 is a perspective view of a lamp manufactured by using the present invention; Figure 5 is a perspective view of another angle of the lamp holder of the present invention; 6 is a schematic view showing the principle of light reflection of the lamp holder of the present invention; FIG. 7 is a light pattern diagram of the present invention when applied to a lamp; FIG. 8 is a light pattern of a conventional indirect illumination lamp using a single elliptical surface, and the light shape is generated in the figure. Offset phenomenon.

As shown in Fig. 1, each is a perspective view of a partial cross section of the present invention. The present invention is a heat-dissipating lamp holder. The lamp holder 1 has an elongated shape and includes a thermal transfer unit 2, a light source platform unit 3, and a light guiding unit 4, which is responsible for dissipating heat and reflecting light flux. The light source platform unit 3 is responsible for carrying the light source, and the light guiding unit 4 is responsible for reshaping the output light pattern. The lamp holder of the invention is used in the indirect lighting fixture to provide the maximum luminous flux of the lamp, and the configuration of the two semi-elliptical surface mirroring modes can shape the symmetrical light pattern; in addition, the special design in the structure, such as The heat is accumulated and then dissipated through the heat dissipating surface; or the vent hole is provided to increase the air convection velocity inside and outside the lamp, which contributes to the thermal conduction and achieves a good heat dissipation effect.

As shown in FIG. 1 and FIG. 2 , the thermal transfer unit 2 has a long strip shape, and has two semi-elliptical curved surfaces 21 , a plurality of heat dissipation fins 22 and at least one first venting hole 23 . The mirroring arrangement is formed on the thermal guiding unit 2, each of the semi-elliptical curved surfaces 21 has two sides, the first edge 211 is close to the middle position of the thermal guiding unit 2, and the second edge 212 is away from the intermediate position, the thermal guiding unit 2 There is a mounting surface 24 between the two first edges 211 . The first venting holes 23 are distributed on the mounting surface 24 and penetrate the thermal guiding unit 2 . The surface of the semi-elliptical curved surface 21 is additionally provided with a high reflectivity film. In the embodiment, the high reflectivity film is a mirror aluminum material, thereby achieving a good reflection effect. A plurality of the heat dissipating fins 22 are distributed in a strip shape and distributed on the exposed surface of the thermal transfer unit 2 at a position opposite to the mounting surface 24 of the thermal transfer unit 2.

The light source platform unit 3 is in the shape of a long strip, and is fixed to the mounting surface 24 of the thermal transfer unit 2, and the first edge 211 of each of the semi-elliptical curved surfaces 21 extends from both sides of the light source platform unit 3, and An exit port 25 is formed between the second edges 212. The light source platform unit 3 further has at least one second vent hole 31 communicating with the first vent hole 23.

The light source platform unit 3 is responsible for carrying two light sources. In this embodiment, the light source is a light emitting diode module 5, and the light emitting diode module 5 includes a metal substrate and a plurality of light emitting diodes distributed thereon. Wherein the position of the light-emitting diode is one of the focal points of the semi-elliptical curved surface 21, whereby when the light-emitting diode is illuminated, the semi-elliptical curved surface 21 can reflect the maximum amount of light flux for such indirect Lighting provides maximum luminaire flux. Furthermore, the two semi-elliptical curved surfaces 21 of the present invention are arranged in a mirror image manner, and the two light exiting openings 25 are located at the outer side, not at the intermediate position, so that the light reflected by the two elliptical curved surfaces 21 is fused to obtain an ideal symmetrical light. type.

Furthermore, the thermal transfer unit 2 and the light source platform unit 3 are made of a metal material having a high conductivity. The light source platform unit 3 and the thermal transfer unit 2 can be fixed by screws or other means. The thermal conduction unit 2 and the light source platform unit 3 are large-volume metal platforms, which have a heat capacity effect, can accumulate heat generated by the light-emitting diodes, and then conduct heat to a plurality of heat-dissipating fins 31 to achieve better heat dissipation effect. . In addition, the first venting hole 23 and the second venting hole 31 constitute a penetrating inner and outer patio. When the lamp holder 1 is made into a lamp, the air in the lamp holder 1 rises or falls along the space of the vertical vent hole, thereby causing the air to strengthen the convection. Phenomenon, this chimney effect helps the air convection inside and outside the luminaire, improving the heat dissipation speed.

The light guiding unit 4 is responsible for reshaping the output light patterns of the two light exit ports 25, and adjusting the required illumination range and light type to meet different lighting requirements. The light guiding unit 4 includes at least a pair of light guiding plates 41 and 42 disposed face to face, and the light guiding plates 41 and 42 have a long plate shape, and the cross-sectional shape can be It is a slope or a curved surface, which is a slope in this embodiment. The surface of the light guide plates 41 and 42 can be mounted with a high reflectivity film. In the embodiment, the high reflectivity film is a mirror aluminum material. In design, changing the inclination angle and height of the inclined surface of the light guide plates 41 and 42 or adjusting the curvature of the curved surface can change the light exit angle of the symmetrical light pattern reflected by the two semi-elliptical curved surfaces 21, and output a better illumination range. To meet the needs of users.

In addition, the lamp holder 1 further includes two housings 6 disposed on opposite sides of the thermal guiding unit 2 and connected to the light guide plates 41 and 42 respectively. The housing 6 and the thermal guide A plurality of heat dissipation channels 61 are formed between the shifting unit 2 and the light guide plates 41 and 42. The heat dissipation flow paths 61 are in communication with the outside. In the embodiment, the thermal guiding unit 2, the light guiding unit 4 and the housing 6 are integrally formed.

3, FIG. 4 and FIG. 5 are respectively a perspective view, an exploded view of the lamp, and a perspective view of the lamp holder 1 at another angle. In the lamp, in addition to the lamp holder 1 of the present invention, two sets of the LED module 5, the side cover 7, and the dust guard 8 are additionally provided. The light-emitting diode module 5 is mounted on the light source platform unit 3, and each of the light-emitting diode modules 5 corresponds to the semi-elliptical curved surface 21, and the fixing manner can be screwed, welded or otherwise. The side cover 6 is mounted on the two sides of the socket 1. In this embodiment, the two sides of the socket 1 are recessed to form a pair of interfaces 11 , and the side cover 7 is shaped to match the shape of the pair of interfaces 11 . In addition to the inner space of the inner socket 1 , the side cover 7 also has an associated power supply and control circuit for driving the LED module 5 . The dustproof cover 8 is made of transparent glass, and grooves 411 and 421 are formed at positions corresponding to the two light guide plates 41 and 42 (see also FIG. 2). When assembling, the two sides of the dustproof shield 6 are inserted along the position of the groove 411 and the groove 421, and then the two side covers 7 are attached to the pair of interfaces 11 of the socket 1, so that the present invention can be formed. The luminaire is shown in Figure 3.

FIG. 6 is a schematic diagram showing the principle of light reflection of the lamp holder of the present invention. Since the light-emitting diode of the present invention is located at one of the focal points of the semi-elliptical curved surface 21, the light is reflected and outputted through another focus position at the light exit opening 25, providing the largest light fixture after such indirect illumination reflection. The luminous flux, and the two sets of semi-elliptical curved surfaces 21 arranged in the mirror mode, the light patterns output by the two light exits 25 are fused to form an ideal symmetrical light type, as shown in FIG. Finally, the light is reflected by the secondary optics of the light guide plates 41, 42 to adjust the required illumination range and light type.

The above is only a preferred embodiment for explaining the present invention, and is not intended to limit the present invention in any way, and any modifications or alterations to the present invention made in the spirit of the same invention. All should still be included in the scope of the intention of the present invention.

Claims (7)

A heat-dissipating lamp holder comprises: a thermal guiding unit having a long strip shape, two semi-elliptical curved surfaces, a plurality of fins and at least one first venting hole, wherein the two semi-elliptical surfaces are formed by mirroring The thermal transfer unit, each of the semi-elliptical curved surfaces has two sides, a first edge is adjacent to an intermediate position of the thermal transfer unit, and a second edge is away from an intermediate position, and the thermal transfer unit has a between the two first edges a mounting surface, the first venting hole is distributed on the mounting surface and extends through the thermal guiding unit, the heat dissipating fin is distributed on an exposed surface of the thermal guiding unit; a light source platform unit is coupled to the thermal guiding unit a first surface of each of the semi-elliptical curved surfaces extending from the two sides of the semi-elliptical curved surface, and a light exiting port is formed between the light source platform unit and the light source platform unit further has at least one second venting hole. The second venting hole is in communication with the first venting hole, wherein the light source platform unit is configured to carry two light emitting diode modules, each of the light emitting diode modules facing the semi-elliptical curved surface, the illuminating two The body module includes a metal substrate and a plurality of light emitting diodes disposed thereon, wherein the light emitting diode is disposed at a focus of the semi-elliptical surface; and a light guiding unit includes at least two The light guide plates are arranged in a face-to-face manner, and each of the light guide plates is coupled to the second edge of the corresponding semi-elliptical curved surface. The heat-dissipating lamp holder according to claim 1, wherein the semi-elliptical curved surface is mounted with a high reflectivity film. The heat-dissipating lamp holder according to claim 1, wherein a surface of the light guide plate is mounted with a high reflectivity film. The heat-dissipating lamp holder according to claim 3, wherein the light guide plate has a sloped section. The heat-dissipating lamp holder according to claim 3, wherein the light guide plate has a curved surface. The heat-dissipating lamp socket of claim 1, wherein the heat-dissipating fin distribution position is another surface opposite to a mounting surface of the thermal conductivity unit. The heat-dissipating lamp holder of claim 1, further comprising a plurality of housings connected to the thermal transfer unit and the light guide plate, and the housing, the thermal transfer unit, and the guide A plurality of heat dissipation channels are formed between the light plates.