TWM454553U - A linear illumination module, a lamp and a lighting device having the linear illumination module - Google Patents

Abstract

Disclosed herein is a linear illumination module, comprising a heat-sink structure and a plurality of circuit boards. The heat-sink structure includes a base and a heat-sink frame. The base includes a support plate and a support frame protruding from the surface of the support plate. The heat-sink frame is located on the base in a direction along a longitudinal axis of the linear illumination module, and the heat-sink frame has at least two bearing surfaces. A plurality of light-emitting elements are formed on the circuit board, and the circuit board is fixed on the bearing surface. A lamp and a lighting device having the linear illumination module are also disclosed.

Description

Linear light source module, lamp tube and lighting device structure having the same

The present invention relates to a light source module, and more particularly to a linear light source module.

Light-emitting diode (LED) has the advantages of durability, long life, light weight, low power consumption and no harmful substances such as mercury. It can be widely used in the lighting equipment industry, such as LED bulbs, LED fluorescent lamps, LED lamps. Tube and so on.

Referring to FIG. 1 , the conventional lamp tube structure 100 includes a heat dissipation structure 110 , a light-emitting module 120 composed of a circuit board 122 and a light-emitting diode 124 , and a tubular lamp cover 130 . The tubular lamp cover 130 is connected to both ends of the heat dissipation structure 110 and covers the light emitting module 120. As shown in FIG. 1 , the conventional lamp tube structure 100 fixes the light-emitting module 120 to the heat dissipation structure 110. Since the light-emitting module 120 is placed only on a single plane of the heat sink structure 110, the light-emitting angle is limited to 120 degrees. Inside. Therefore, if the user needs a lamp with a large angle of light in the decoration or a specific occasion, the conventional design often fails to meet the demand.

In view of this, there is a great need for a lamp tube structure to improve the above problems, and to provide a larger angle of light to meet the needs of users.

Therefore, one aspect of the present invention provides a linear light source module comprising a heat dissipation structure, a plurality of circuit boards, and a plurality of light emitting elements. The heat dissipation structure includes a base and a heat dissipation frame. The base includes a support plate And a support frame protruding from the surface of the support plate. The heat dissipation frame is disposed on the base, wherein the heat dissipation frame is disposed along the longitudinal direction of the linear light source module and has at least two bearing surfaces. A plurality of light-emitting elements are formed on each of the circuit boards, and each of the circuit boards is fixedly disposed on each of the load-bearing surfaces.

According to an embodiment of the invention, the light-emitting element is a light-emitting diode.

According to another embodiment of the present invention, the cross-sectional shape of the heat dissipation frame is an I-shaped, a splayed shape, a triangular shape, a square shape or a symmetrical polygonal shape, and the pedestal and the heat dissipation frame are integrally formed.

According to another embodiment of the present invention, the bearing surfaces of the linear light source module have different normal directions.

According to still another embodiment of the present invention, the linear light source module further includes a reflective layer on a surface of the heat dissipation frame and not covered by the circuit board.

Another aspect of the present invention provides a lighting device structure comprising any of the above linear light source modules and a housing fixed to the base for covering the linear light source module.

Another aspect of the present invention provides a lamp tube structure comprising any of the above-described linear light source modules, a lamp cover, and a two-end cover. The lampshade is fixed on the base to cover the linear light source module and combined with the linear light source module to form a tubular structure. The two end caps are respectively sleeved on the two ends of the tubular structure, and each end cap has a positive and negative pole pins, so that an external power source can be electrically connected to the circuit board through the positive and negative poles on the two end caps.

According to the above, the heat dissipation structure of the linear light source module of the present invention can provide at least two light-emitting modules on the bearing surface because the heat-dissipating frame structure can provide an exit angle of more than 180 degrees, thereby solving the problem that the conventional light-emitting angle is too small.

In order to make the description of the present disclosure more detailed and complete, the following description of the embodiments of the present invention and the specific embodiments thereof are set forth. The embodiments disclosed herein may be combined or substituted with each other in an advantageous manner, and other embodiments may be added to an embodiment without further description or description. However, embodiments of the present invention may be practiced without such specific details. In other instances, well-known structures and devices are only schematically shown in the drawings in order to simplify the drawings.

Please refer to FIG. 2A , which is a schematic perspective view of a linear light source module 200 according to an embodiment of the present invention. Fig. 2B is a schematic cross-sectional view showing the line segment A-A' according to Fig. 2A. As shown in FIG. 2A, the linear light source module 200 includes a heat dissipation structure 202, a plurality of circuit boards 232, and a plurality of light-emitting elements 234. The heat dissipation structure 202 includes a base 210 and a heat dissipation frame 220. The base 210 includes a support plate 212 and a support frame 214 protruding from the surface of the support plate 212. The heat dissipation frame 220 is disposed on the base 210, wherein the heat dissipation frame 220 is disposed along the longitudinal direction of the linear light source module 200. The heat dissipation frame 220 has at least two bearing surfaces 222. Each of the circuit boards 232 is fixedly disposed on each of the bearing surfaces 222, and a plurality of light-emitting elements 234 are formed on each of the circuit boards 232.

The heat dissipation frame 220 described above is connected to the base 210 to form an integrally formed heat dissipation structure 202. The material of the heat dissipation structure is not limited herein, and any heat dissipation material suitable for the illumination device can be applied thereto; in one embodiment, aluminum is used as the material of the heat dissipation structure. Each bearing surface 222 on the heat dissipation frame 220 They have different normal directions, which make the linear light source module have different light-emitting directions and reach a larger light-emitting range.

The cross-sectional shape of the heat dissipation frame may be an I-shape, a king-shaped shape, a triangular shape, a square shape, or a symmetric polygonal shape, but is not limited thereto. As shown in FIG. 2B, the heat dissipation frame 220 has a cross-sectional structure of an I-shaped shape and has three bearing surfaces 222, and each of the bearing surfaces 222 can have at least one circuit board 232, and at least one row can be placed on each circuit board 232. Light-emitting elements 234, wherein the light-emitting elements 234 can be arranged neatly or staggered. As shown in FIG. 3, the heat dissipation frame 220 has a cross-sectional structure of a king shape, and has five bearing surfaces 222. The circuit board 232 and the light-emitting element 234 can be disposed as described above. The king-shaped heat dissipation frame 220 has nearly 360. The angle of light. As shown in FIG. 4, the heat dissipation frame 220 has a triangular cross-sectional structure, and has three bearing surfaces 222 for arranging the circuit board 232 and the light-emitting element 234, and the circuit board 232 and the light-emitting element 234 can be disposed as described above. As shown in FIG. 5, the heat dissipation frame 220 has a square cross-sectional structure, and has three bearing surfaces 222 for arranging the circuit board 232 and the light-emitting element 234, and the circuit board 232 and the light-emitting element 234 can be disposed as described above. As shown in FIG. 6, the heat dissipation frame 220 has a hexagonal cross-sectional structure, and has five bearing surfaces 222 for arranging the circuit board 232 and the light-emitting element 234, and the circuit board 232 and the light-emitting element 234 can be disposed as described above. However, other heat dissipating frames having more than two bearing surfaces may be used, and are not limited to the cross-sectional shape of the heat dissipating frame mentioned above.

The circuit board 232 of the present embodiment is a high thermal conductive circuit board attached to the bearing surface 222 of the heat dissipation structure 202. The light-emitting elements 234 of the bearing surfaces 222 can be disposed according to actual needs.

In one embodiment, the light emitting element is a light emitting diode. Light-emitting element The material may be phosphorous gallium arsenide (GaAsP) III-V, aluminum gallium arsenide (AlGaAs) III-V, aluminum gallium indium phosphide (AlGaInP), tantalum carbide (SiC) group IV, zinc selenide (ZnSe) II-VI, GaN or InGaN III-V, InGaN III-V or Single Quantum Well (SQW) III-V, but not Limited to this.

Please refer to FIG. 7 , which is a cross-sectional structural diagram of a linear light source module according to another embodiment of the present invention. The I-shaped or the stencil-shaped heat dissipation frame 220 further includes at least one protruding structure 310 protruding from the heat dissipation frame 220 for reinforcing the fixed light-emitting element 234 such that the light-emitting element 234 is not easily detached from the circuit board 232.

Please refer to FIG. 8 , which is a cross-sectional structural diagram of a linear light source module according to another embodiment of the present invention. As shown in FIG. 8, the linear light source module further includes a structure in which a reflective layer 410 is located on the surface of the heat dissipation frame 220 and is not covered by the circuit board 232 for improving light efficiency. The reflective layer can be a film layer of highly reflective material, or a mirror-treated metal cup, plastic or other material that enhances light efficiency. The method of forming the reflective layer may be electroplating, sputtering, or anodizing, but is not limited thereto. It is worth noting that the reflective layer is only used to increase the light extraction efficiency and has no effect on the overall light extraction angle.

Please refer to FIG. 9A , which illustrates a perspective structural view of a lamp tube structure 500 according to an embodiment of the present invention. Fig. 9B is a schematic cross-sectional view showing the line segment B-B' according to Fig. 9A. As shown in FIG. 9A, the lamp structure 500 includes any of the above-described linear light source modules 510, a lamp cover 520, and a two-end cover 530. The lamp cover 520 is fixed on the base 210 for covering the linear light source module 510 and combined with the linear light source module 510. In a tubular structure. The two end caps 530 are respectively sleeved on the two ends of the tubular structure, and each end cap has a positive and negative pin 540, so that an external power source can pass through the positive and negative pins 540 and the circuit board on the two end caps 530. 232 electrical connection.

In addition, the linear light source module of the present invention can be applied to any illuminating device structure, and the structure comprises any one of the above linear light source modules and a casing fixed to the pedestal for covering the linear light source module.

According to the above, the heat dissipation structure of the linear light source module of the present invention can provide at least two bearing surface placement light-emitting modules due to the heat dissipation frame structure, and the light-emitting angle of the linear light source module can reach a light-emitting range of 180 degrees or more. This design can improve the light-emitting range of the linear light source without any optical components, so it can solve the problem that the conventional light-emitting angle is too small, and thereby expand the application field of the linear light source lighting device.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Any one skilled in the art can make various changes and retouchings without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Light tube structure

110‧‧‧heat dissipation structure

220‧‧‧heat shelf

222‧‧‧ bearing surface

120‧‧‧Lighting module

122‧‧‧ boards

124‧‧‧Lighting diode

130‧‧‧shade

200‧‧‧Linear light source module

202‧‧‧heating structure

210‧‧‧Base

212‧‧‧Support board

214‧‧‧Support frame

232‧‧‧PCB

234‧‧‧Lighting elements

310‧‧‧Outstanding structure

410‧‧‧reflective layer

500‧‧‧Light tube structure

510‧‧‧Linear light source module

520‧‧‧Shell, lampshade

530‧‧‧End cover

540‧‧‧ pin

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood. The description of the drawing is as follows: FIG. 1 is a schematic view showing a three-dimensional structure of a conventional lamp tube structure.

FIG. 2A is a schematic perspective view showing a linear light source module according to an embodiment of the present invention.

Fig. 2B is a schematic cross-sectional view showing the line segment A-A' according to Fig. 1A.

3 is a cross-sectional structural view showing a linear light source module according to another embodiment of the present invention.

4 is a cross-sectional structural view showing a linear light source module according to another embodiment of the present invention.

FIG. 5 is a cross-sectional structural view showing a linear light source module according to still another embodiment of the present invention.

FIG. 6 is a cross-sectional structural view showing a linear light source module according to still another embodiment of the present invention.

7 is a cross-sectional structural view showing a linear light source module according to another embodiment of the present invention.

FIG. 8 is a cross-sectional structural diagram of a linear light source module according to still another embodiment of the present invention.

FIG. 9A is a schematic perspective view showing a structure of a lamp tube according to an embodiment of the present invention.

Fig. 9B is a schematic cross-sectional view showing the line segment B-B' according to Fig. 9A.

200‧‧‧Linear light source module

202‧‧‧heating structure

210‧‧‧Base

212‧‧‧Support board

214‧‧‧Support frame

220‧‧‧heat shelf

222‧‧‧ bearing surface

232‧‧‧PCB

234‧‧‧Lighting elements

Claims (10)

A linear light source module comprising: a heat dissipation structure, comprising: a base, comprising a support plate and a support frame protrudingly disposed on the surface of the support plate; and a heat dissipation frame disposed on the base, wherein the heat dissipation The frame is disposed along the longitudinal direction of the linear light source module and has at least two bearing surfaces; a plurality of circuit boards are respectively fixedly disposed on each of the bearing surfaces; and a plurality of light emitting elements are fixedly disposed on each On the board. The linear light source module of claim 1, wherein the light emitting elements are light emitting diodes. The linear light source module of claim 1, wherein the heat dissipating frame has a cross-sectional shape of an I-shape, a king-shaped shape, a triangular shape, a square shape, or a symmetric polygonal shape. The linear light source module of claim 1, further comprising a reflective layer on the surface of the heat dissipation frame and not covered by the circuit boards. The linear light source module of claim 4, wherein the reflective layer is formed by electroplating, sputtering or anodizing. The linear light source module of claim 1, wherein the linear light source module has an exit angle of 180 degrees to 360 degrees. The linear light source module of claim 1, wherein the bearing surfaces of the linear light source modules have different normal directions. The linear light source module of claim 1, wherein the base is integrally formed with the heat dissipation frame. A illuminating device structure, comprising: a linear light source module, such as the linear light source module according to any one of claims 1 to 8; and a casing fixed to the base for covering The linear light source module. A lamp light structure comprising: a linear light source module, such as the linear light source module according to any one of claims 1 to 8; a lamp cover fixed to the base for covering the a linear light source module combined with the linear light source module to form a tubular structure; and two end caps respectively sleeved at two ends of the tubular structure, and each The front cover has a positive and negative pin, so that an external power source can be electrically connected to the circuit boards through the positive and negative pins of the two end covers.