TWM486739U - LED lamp tube device - Google Patents

Description

LED tube device

The present invention relates to an LED tube device, in particular to an LED tube device having an illumination angle greater than 180 degrees.

According to the fluorescent tube, it is a modern and indispensable lighting tool. It is a commonly used lighting product. However, the fluorescent tube is bulky, and it will produce a large amount of mercury pollution during manufacturing, use and disposal. It has always been a potential for environmental protection. The source of heavy metal pollution; the life of the fluorescent tube is very short, only about 1,000 hours, and only 10% of the received electric energy can be converted into light energy, and 90% is converted into useless heat to the air. In the middle, the loss of electrical energy, so much energy is wasted, and the heavy burden of the natural environment is actually increased.

In order to solve the shortcomings of the above fluorescent tubes and the requirements of environmental protection, energy saving and carbon reduction, the LEDs have the advantages of environmental protection, power saving, high efficiency, long service life, small volume and fast response. Actively developed LED tubes to replace traditional fluorescent tubes, and gradually used in various types of lighting. At present, the more advanced LED tube structure mainly comprises a semi-circular heat-dissipating aluminum tube and a semi-circular lampshade to form a hollow lamp tube, wherein an LED chip circuit board is arranged therein, and then a hollow lamp tube is disposed in the hollow lamp tube. The LED driving circuit is sealed to form an LED tube having a large heat dissipation area. However, the conventional LED tube structure still has the following disadvantages in manufacturing and application:

1. The semi-circular heat-dissipating aluminum tube has a large heat-dissipating area, but it must occupy half or more of the entire hollow tube. This means that the area of the light source is less than half of the entire hollow tube, not only downward. Luminous, and less than 180 degrees of illumination angle; in addition, the metal material required for the manufacture of the semi-circular heat-dissipating aluminum tube increases with the area, which inevitably increases the overall weight of the LED tube and increases the cost.

2. When the LED lamp is lit, the temperature of the LED chip circuit board and the LED drive circuit are superimposed The temperature difference between the temperature and the LED chip board is at least 10 °C, which makes the LED driver circuit and LED die damage easily due to the difference of working temperature, the influence of internal high temperature and uneven heat dissipation. At the same time, the interface temperature of the LED die is too high, which may cause problems such as a decrease in luminous efficiency and a decrease in lifetime.

3. The semi-circular lampshade lampshade is made of atomized plastic or acrylic material. It has poor light transmission and glare problem, which will greatly reduce the lighting effect.

Therefore, how to solve the problem of high-temperature heat dissipation and glare, as well as improving light transmittance, reducing the overall lamp weight, and effectively extending the life of components are urgent problems to be solved.

In view of this, the present invention proposes an LED lamp tube device to effectively overcome the above problems in view of the above-mentioned lack of prior art.

The main purpose of this creation is to provide an LED tube device that uses a heat sink with an internal heat dissipating component to effectively improve the heat dissipation effect, and an optical resin lampshade having an illumination angle greater than 180 degrees to improve the illumination range and high light transmittance.

The main purpose of the present invention is to provide an LED lamp tube device, which reduces the area of the heat sink, and the inner side wall of the optical resin lamp cover is provided with a plurality of wave-shaped grooves, which can not only reduce the overall weight and manufacturing cost, but also achieve high heat dissipation. The problem is that the range of illuminance and illumination is large and the loss of the light source caused by internal light refraction and diffraction is solved.

For the above purposes, the present invention provides an LED tube device comprising a hollow tube body, a heat sink, at least one LED module, a two-end cover and two LED drivers. The hollow tube body comprises an optical resin lamp cover and a heat dissipation seat, and the heat dissipation seat is coupled to the optical resin lamp cover to form an accommodating space; wherein the optical resin lamp cover has an illumination angle greater than 180 degrees, which can be close to the characteristics of the conventional full-angle illumination. The heat sink has a mounting surface, the heat sink is disposed on the mounting surface, and is located in the receiving space; the LED module is disposed on the heat sink and located in the receiving space, and the LED module is disposed by the heat sink disposed adjacent to the heat sink The heat is conducted to the heat sink and conducted through it. The two end caps are respectively sleeved on the two ends of the hollow tube body, and the two LED drivers are respectively disposed in the two end caps. And electrically connected to the LED module; in operation, the two LED driver drives the LED module to project a light source through the optical resin lamp cover to the outside.

The details of the creation, the technical content, the features and the effects achieved by the present invention are more easily explained by the detailed description of the specific embodiments.

10‧‧‧ hollow body

12‧‧‧ Heat sink

14‧‧‧LED module

16‧‧‧End cover

162‧‧‧ casing

1622‧‧‧Inlay

164‧‧‧ Cover

166‧‧‧electrode terminal

18‧‧‧LED driver

22‧‧‧Optical resin lampshade

222‧‧‧鸠尾榫

24‧‧‧ Heat sink

242‧‧‧Installation surface

244‧‧‧ curved surface

246‧‧‧ Heat sink fins

248‧‧‧鸠尾槽

249‧‧‧ screw holes

26‧‧‧ accommodating space

28‧‧‧Insulation mat

30‧‧‧Wire

The first picture is a perspective view of the creation.

Figure 2 is an exploded view of the creation.

Figure 3 is a cross-sectional view taken along line A-A of Figure 1.

Figure 4 is a cross-sectional view of the creation of the illumination.

The design of the creation is convenient for assembly on a conventional lamp holder, and can directly replace the use of the conventional fluorescent tube, thereby improving the disadvantages of poor heat dissipation efficiency, small illumination range and poor light transmission of the conventional fluorescent tube.

Please refer to Figure 1, Figure 2 and Figure 3 together. Figure 1 is a perspective view of the creation, Figure 2 is an exploded view of the creation, and Figure 3 is a cross-sectional view taken along line AA of Figure 1. . First, the composition of the present invention and its assembly method are first described. The LED tube device is designed as a long tube, which comprises a hollow tube body 10, a heat sink 12, at least one LED module 14, Two end caps 16 and two LED drivers 18. The hollow tube body 10 includes an optical resin lamp cover 22 and a heat dissipation seat 24. The heat dissipation seat 24 has a mounting surface 242. The heat dissipation seat 24 is designed as an aluminum-extruded semi-circular hollow tube, and its plane serves as a mounting surface 242. The outer surface of the curved surface 244 of the semicircular hollow tube has a plurality of fins 246. The heat sink 12 is disposed on the mounting surface 242, and the length of the heat sink 12 is slightly smaller than the mounting surface 242. The LED module 14 is closely attached to the heat sink 12, and the LED module 14 is preferably designed as an LED light strip. The length is the same as that of the heat sink 12.

In the continuation, the optical resin lamp cover 22 is matched with the shape of the heat sink 24, and is designed as a circular arc-shaped optical resin lamp cover, and is mounted on the mounting surface 242 to form an accommodation space 26. It is worth noting that in order to increase the illumination range and reduce the overall weight, the arc surface area of the heat sink 24 is much smaller than the optical resin lamp cover 22, and the optical The resin lamp cover 22 has an illumination angle greater than 180 degrees. A dovetail 248 is disposed on each side of the mounting surface 242 of the heat sink 24, and a dovetail 222 is respectively disposed on both sides of the bottom end of the optical resin lamp cover 22. When assembled, the optical resin lamp cover 22 is first disposed from one end of the heat sink 24 After the dovetail 222 is engaged with the dovetail groove 248, it is horizontally moved along the dovetail groove 248 until the optical resin lamp cover 22 is completely fixedly coupled to the heat sink 24. The optical resin lamp cover 22 is a circular arc-shaped optical resin lamp cover. Therefore, the accommodating space 26 is formed between the optical resin lamp cover 22 and the mounting surface 242, and the heat sink 12 and the LED module 14 are located in the accommodating space 26 . .

The two end caps 16 are respectively sleeved on the two ends of the hollow tube body 10. The two end caps 16 respectively include a sleeve 162 and a cover 164. The cover 164 is provided with two electrode terminals 166, and the sleeve 162 One end is sleeved on the hollow tube body 10, and the other end is sleeved with a cover 164. In detail, the sleeve 162 is designed with a short circular arc-shaped hollow sleeve having a groove 1622 in a plane whose arc-shaped area is slightly larger than the optical resin lamp cover 22, and the bottom ends of the sleeve 162 are also provided on both sides. With the dovetail, the sleeve 162 can be inserted into the dovetail groove 248 of the mounting surface 242, so that the two sleeves 162 can be respectively sleeved on both ends of the optical resin lamp cover 22 and tightly fitted; The total length of the resin lamp cover 22 after being assembled is the same as that of the heat sink 24. Then, the two LED drivers 18 are respectively disposed in the sleeve 162 of the two-end cover 16, and the two insulating pads 28 are respectively embedded in the slots 1622 of the sleeve 162, and the insulating pads 28 are disposed adjacent to the LED driver 18, The LED driver 18 is electrically connected to each other by using at least two wires 30 passing through the semicircular hollow tube of the heat sink 24; finally, the cover 164 is fixed to the screw hole 249 of the heat sink 24 by bolts 168, so that The two electrode terminals 166 of the cover 164 are electrically connected to the two LED drivers 18, respectively, so that the LED lamp device can be assembled.

After understanding the structure of the LED lamp device, the LED lamp device can be installed on the lamp holder, and the two electrode terminals 166 of the two end caps 16 are in contact with the power line on the lamp socket to form a contact conduction. Please also refer to Figure 2 and Figure 4, which is a cross-sectional view of the creation of the lighting. In use, the second electrode terminal 166 conducts a power to the two LED driver 18 and the LED module 14, and the LED driver 14 drives the LED module 14 to operate. The LED module 14 can project a light source through the optical resin lamp cover 22 to outer. Since the LED driver 18 and the LED module 14 operate high during operation By the design of the present invention, the two insulating pads 28 can directly conduct the high temperature generated by the LED driver 18 to the heat sink 24, and the heat radiating fins 246 of the curved surface 244 rapidly conduct heat energy into the air; The heat sink 12 can directly conduct the high temperature generated by the LED module 14 to the heat sink 24, and the heat radiating fins 246 of the curved surface 244 can quickly transfer the heat energy to the air, thereby ensuring the LED driver 18 and The LED module 14 operates normally in a low temperature environment to prolong the service life; thereby solving the problem of damage to electronic components caused by conventional heat storage inside the lamp or local thermal superposition.

It should be noted that in order to make the optical resin lamp cover 22 have an illumination angle greater than 180 degrees, an optical grade resin material and a diffusion particle are added, and the wire is processed to form a high light transmittance and a uniform diffusion of the light source. The optical resin lamp cover 22 can be made close to the material limit of 94% transmittance, the diffusion particles have a refractive index of 1.4 to 1.5, and the inner side wall of the optical resin lamp cover 22 has a plurality of wave-shaped grooves 224, which can reduce the overall average thickness and weight. Moreover, the effect of light transmission can be improved and the original structural strength can be maintained; in addition, the LED module 14 is an LED die that can be applied to the refractive index, and has an illumination angle of 120 degrees. Since the arc surface area of the optical resin lamp cover 22 is much larger than the heat sink 24 (for example, the arc surface area occupied by the optical resin lamp cover 22 is 70% or more of the total volume of the hollow pipe body 10); therefore, when the LED module 14 projects the light source, the wave The groove 224 can guide the light traveling path of the light source, and can reduce the internal light refraction and diffraction, and cooperate with the structural characteristics of the large-angle optical resin lamp cover 22 to allow the light source to be guided to an illumination angle greater than 180, and through the optical resin. When the lamp cover 22 is irradiated to the outside, it can generate the maximum illumination, which is similar to the full-angle illumination of the conventional fluorescent tube, and effectively distributes the light source evenly around the LED tube device, and solves the problem that the conventional LED tube has glare and The problem of loss of light source; of course, the heat dissipation of this creation is also better than the traditional simultaneous fluorescent tube or LED tube.

In summary, the present invention can uniformly and quickly conduct components that generate high temperature inside, can effectively improve the heat dissipation effect, and utilize an optical resin lampshade with an illumination angle greater than 180 degrees to improve the illumination range and high transmittance. efficacy. In addition, the heat sink is designed as a hollow tube body, and the inner side wall of the optical resin lamp cover is provided with a plurality of wave-shaped grooves, which can not only reduce the overall weight and manufacturing cost, but also reduce the overall weight and manufacturing cost. It can achieve high heat dissipation, large illumination range, and can solve the problem of internal light refraction and light source loss caused by diffraction, which is very competitive in the market.

Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the present invention. The changes and refinements that are made without departing from the spirit and scope of this creation are within the scope of patent protection of this creation. Please refer to the attached patent application scope for the scope of protection defined by this creation.

10‧‧‧ hollow body

12‧‧‧ Heat sink

14‧‧‧LED module

16‧‧‧End cover

162‧‧‧ casing

1622‧‧‧Inlay

164‧‧‧ Cover

166‧‧‧electrode terminal

18‧‧‧LED driver

22‧‧‧Optical resin lampshade

222‧‧‧鸠尾榫

24‧‧‧ Heat sink

242‧‧‧Installation surface

246‧‧‧ Heat sink fins

248‧‧‧鸠尾槽

26‧‧‧ accommodating space

28‧‧‧Insulation mat

30‧‧‧Wire

Claims (10)

An LED tube device comprises: a hollow tube body comprising an optical resin lamp cover and a heat sink, wherein the optical resin lamp cover has an illumination angle greater than 180 degrees, and the heat dissipation seat is coupled to the optical resin lamp cover to form a cavity The heat sink has a mounting surface; a heat sink is disposed in the accommodating space and is disposed on the mounting surface; at least one LED module is disposed on the heat sink and located in the accommodating space The LED module projects a light source through the optical resin lamp cover to the outside; two end caps are respectively sleeved on both ends of the hollow pipe body; and two LED drivers are respectively disposed in the two end caps, and are electrically Connect the LED module. The LED lamp unit of claim 1, wherein the inner side wall of the optical resin lamp cover has a plurality of wave-shaped grooves for guiding the light traveling path of the light source. The LED lamp tube device of claim 1, wherein the heat dissipating seat is a semicircular hollow tube, the plane of which is the mounting surface, and the outer side wall of the semicircular hollow tube has a plurality of Cooling fins. The LED lamp device of claim 3, wherein the two LED drivers are electrically connected to each other by at least two wires passing through the semicircular hollow tube. The LED lamp tube device of claim 3, wherein the optical resin lamp cover is a circular arc-shaped optical resin lamp cover disposed on the mounting surface to form the accommodating space. The LED lamp device of claim 1, wherein the mounting surface of the heat sink has a dovetail groove on each side of the mounting surface, and a dovetail is disposed on each of the two sides of the bottom end of the optical resin lamp cover. Correspondingly, the fixed joint is placed in the dovetail groove. The LED tube device of claim 1, wherein the two end caps respectively comprise a sleeve and a cover, the cover is provided with two electrode terminals, and the two LED drivers are respectively disposed in the sleeve One end of the sleeve is sleeved on the hollow tube body, and the other end is sleeved with the cover, and the two electrode terminals are electrically connected to the two Two LED drivers. The LED lamp tube device of claim 7, further comprising two insulating pads respectively embedded in one of the slots of the sleeve, adjacent to the LED driver. The LED lamp unit of claim 1, wherein the optical resin lamp cover comprises diffusing particles having a refractive index of 1.4 to 1.5. The LED lamp device of claim 1, wherein the LED module is an LED light bar.