TWM483546U - LED lamp tube - Google Patents

Description

LED tube

This creation is about a luminaire, especially an LED tube.

In recent years, Light-Emitting Diode (LED) has been widely used in lighting devices for everyday life. Please refer to the first figure, which is a perspective view of a conventional LED daylight fixture. As shown in the first figure, a conventional LED daylight lamp 1' includes: a lamp cover 11', a substrate 12', a circuit board 13', a plurality of LED elements 14', and a two-end cover 15', wherein The substrate 12' is housed within the lampshade 11', and the circuit board 13' provided with the LED element 14' is placed over the substrate 12'. As shown in the figure, after one of the connecting wires 151' of the end cap 15' is connected to the circuit board 13', the end cap 15' can be sleeved around the port of the lampshade 11', thereby sealing the lampshade 11'. . Further, the outer end of the end cover 15' has a lead terminal 152' for coupling to an external input power source.

The LED daylight lamp 1' shown in the first figure has the advantage that the structure is the simplest; however, its most criticized disadvantage is that the light emission angle is seriously insufficient. As shown in the first figure, the light emission angle of the LED daylight lamp 1' is at most about 1600, and even the 1800 does not.

In view of the shortcomings of the conventional LED daylight lamps 1' having a serious lack of light emission angle, LED lamp manufacturers have proposed an improved LED daylight lamp. Please refer to the second figure for an exploded view of the improved LED daylight fixture. As shown in the second figure, the improved LED daylight lamp 1" includes: a receiving body 11", a circuit board 13", a plurality of LED elements 14", and a two-end cover 15", wherein the receiving The body 11" includes a carrying portion 111" and a cover portion 112', and the circuit board 13" provided with the plurality of LED elements 14" is disposed above the carrying portion 111". In particular, in the improved LED daylight lamp 1", the bearing portion 111" is made of a metal material having good heat dissipation characteristics, and the outer surface of the bearing portion 111" is further formed with a fin heat dissipation structure. In this way, the heat generated by the LED element 14" is excluded.

Through the above description, we can know that compared with the conventional LED daylight lamp 1', the improved LED daylight lamp 1" shown in the second figure may be relative to the LED daylight lamp 1 shown in the first figure. 'There is a relatively good heat dissipation property. However, in practice, we have found that the improved LED daylight lamp 1" shown in the second figure still has the following disadvantages:

1. The assembled structure of the improved LED daylight lamp 1" includes a receiving body 11", a carrying portion 111", a cover portion 112', a circuit board 13", a plurality of LED elements 14", and a two-end cover 15", The system shows its shortcomings such as complicated structure and inconvenient assembly.

2. In addition, the addition of the bearing portion 111" increases the height of the LED element 14" in the receiving body 11", and reduces the light emission angle of the LED daylight lamp 1" as a whole, resulting in a sharp decrease in the illumination area.

Therefore, combining the above descriptions of the two conventional daylight lamps, it can be known that the conventional daylight lamps still have many shortcomings and shortcomings; in view of this, the creators of the case tried to research and create, and finally developed and completed the creation. An LED tube.

The main purpose of the present invention is that the reflective sheet 12 is disposed in the cover 11 to increase the efficiency of use of the LED light. Moreover, the illumination angle can be controlled through the reflective sheet to adjust the light output of the LED tube. surface.

Therefore, in order to achieve the above object of the present invention, the creator of the present invention proposes an LED lamp tube comprising: a cover body; a copper circuit layer disposed on the bottom of the inner wall of the cover body by an insulating thermal conductive adhesive. And having a plurality of solder pads, and the solder pads are coupled to a driving and control circuit module; a solder resist layer covering the copper circuit layer and having a plurality of soldering layers a window for exposing the solder pads; a reflective sheet disposed within the cover; a plurality of LED elements disposed on the solder resist layer and through the solder windows and the solder pads The two end caps are respectively coupled to the two ends of the cover body, and have two electrical terminals for electrically connecting an external power source.

<this creation>

1‧‧‧LED tube

10‧‧‧AC cable

11‧‧‧ Cover

12‧‧‧reflector

13‧‧‧ grassroots

14‧‧‧ copper circuit layer

15‧‧‧ solder mask

16‧‧‧LED components

16a‧‧‧LED fixing glue

17‧‧‧End cover

141‧‧‧insulating thermal adhesive

142‧‧‧ solder pad

151‧‧‧ welding window

101‧‧‧First soft tape

111‧‧‧Contact hole

121‧‧‧ openings

122‧‧‧terminal

171‧‧‧Electrical terminal

172‧‧‧ accommodating space

173‧‧‧Combined convex parts

174‧‧‧Combination Department

18‧‧‧Terminal Connector Set

180‧‧‧Terminal block group

181‧‧‧Contact Group

2‧‧‧Drive and Control Circuit Module

20‧‧‧Shrap group

21‧‧‧LED chip

21a‧‧‧Transparent colloid

22‧‧‧Substrate

23‧‧‧Fluorescent materials

23a‧‧‧Colloids with fluorescent materials

24‧‧‧Terminal group

<知知>

1'‧‧‧LED daylights

11’‧‧‧shade

12'‧‧‧Substrate

13’‧‧‧ boards

14'‧‧‧LED components

15’‧‧‧End cover

151’‧‧‧Connecting wires

152'‧‧‧ lead terminal

1”‧‧‧Modified LED daylight fixtures

11"‧‧‧容容

13”‧‧‧ boards

14”‧‧‧LED components

15"‧‧‧End cover

111"‧‧‧ Carrying Department

112" ‧ ‧ hood

The first figure is a perspective view of a conventional LED lamp; the second picture is an exploded view of an improved LED tube; the third A picture is a perspective view of an LED tube of the present invention; the third picture B is an LED lamp An exploded view of a part of the tube; a third side view of the end cap of the LED; a fourth side view of the end cap of the LED tube; a fifth embodiment of the second embodiment of the LED lamp of the present invention A perspective view; a fifth embodiment is an exploded view of a base layer, a copper circuit layer, an AC cable, a solder resist layer, and an LED component of the second embodiment of the LED lamp; and the sixth figure is an exploded view of the LED lamp of the present invention. Schematic diagram of the perspective; the seventh A diagram and the seventh B diagram are the detailed structure diagrams of the terminal of the LED tube of the present invention; Figure 8A is a side view of the LED element; Figure 8B is a side view of the LED element; Figure 8C is a side view of the LED element; and a side view of the eighth D-Series LED element.

In order to more clearly describe an LED lamp tube proposed by the present invention, a preferred embodiment of the present invention will be described in detail below with reference to the drawings.

Please also refer to the third A picture and the third B picture, which is a perspective view of an LED tube and an exploded view of some components. As shown in the figure, the LED tube 1 of the present invention comprises: a cover 11, a copper circuit layer 14, a solder mask 15, a reflective sheet 12, a plurality of LED elements 16, and a two-end cover 17, wherein The reflective sheet 12 is disposed in the cover 11 and located on the solder resist layer 15; and the copper circuit layer 14 has a plurality of solder pads 142 and is attached by an insulating thermal conductive adhesive 141. Attached to the bottom of the inner wall of the cover 11, and the copper circuit layer 14 is coupled to a driving and control circuit module located outside the cover 11 by at least one wire; Among the created LED tubes, an AC cable 10 is attached to the bottom of the inner wall of the cover 11 by a first flexible tape 101, and is located under the copper circuit layer 14, and coupled. Connected to the drive and control circuit module. Moreover, the solder resist layer 15 is a white paint with reflection and heat dissipation effects, and is covered on the copper circuit layer 14; wherein the solder resist layer 15 has a plurality of A soldering window 151 is used to expose the solder pads 142.

Continue to explain the LED tube 1 of this creation. The plurality of LED elements 16 are disposed on the solder resist layer 15 and are soldered to the solder pads 142 through the solder windows 151. Moreover, at least one LED fixing glue 16a is disposed at the bottom of the plurality of LED elements 16 for fixing the LED elements 16 on the solder resist layer. Finally, the two end caps 17 are respectively coupled to the two ends of the cover body 11, and the two ends of the AC cable 10 are respectively coupled to the two end caps 17. As shown in FIG. 3A, the inner surfaces of the two ends of the cover 11 are respectively provided with a plurality of coupling holes 111, and the inner surface of the end cover 17 is formed with a plurality of coupling protrusions 173; The coupling protrusions 173 can be embedded in the coupling holes 111 when the end cover 17 is coupled to the end side of the cover body 11, thereby securing the end cover 17 and the cover body 11 to be coupled to each other. However, the end cap 17 and the cover 11 are not limited to the above-described combination, please refer to the third C diagram, which is a side view of the end cap. As shown in FIG. 3C, the end cover 17 has a joint portion 174 that can be coupled to both end sides of the cover body 11, and the joint portion 174 is provided with a light-guiding reflection ring for reflecting the light source. Avoid reducing the glazed surface.

Please continue to refer to the fourth figure, which is a schematic diagram of the setting of the reflection sheet. As shown in the fourth figure, the reflective sheet 12 has a plurality of openings 121 for exposing the light-emitting surfaces of the LED elements 16 to the openings 121, wherein the light emitted by the LED elements 16 passes through. The openings 121 are emitted, and Reflecting on the reflective sheet 12 increases the efficiency of use of the LED light. In addition, the cover 11 used in the present invention may be a glass cover and a plastic cover; and the cover 11 may also be a full transparent cover or a matte cover, wherein if the transparent glass cover is completely transparent or transparent As the cover body 11, the plastic cover body must be provided with a diffusion film on the inner wall surface of the cover body to improve the light scattering rate of the LED lamp tube 1. Further, the plastic cover body can be a material of the upper half. It is plastic, and the lower part is made of glass fiber and plastic material.

Here, it should be particularly noted that although the above description shows that the copper wiring layer 14 is attached to the inside of the cover 11 by an insulating thermally conductive adhesive 141, the present embodiment is not limited thereto. Please refer to FIG. 5A, which is a perspective view of a second embodiment of an LED tube according to the present invention. As shown in the figure, the second embodiment includes a cover 11, a base layer 13, and a copper circuit layer 14. A solder mask 15, a reflective sheet 12, a plurality of LED elements 16, and a two-end cover 17. Continue to refer to Figure 5A, and also refer to Figure 5B, which is the base layer, copper circuit layer, AC cable, solder mask, and LED component explosion diagram. As shown in the figure, the cover 11, the reflection sheet 12, the AC cable 10, the solder resist 15, the LED element 16, and the two end caps 17 of the second embodiment are the same as those of the cover 11 of the above embodiment. The sheet 12, the AC cable 10, the solder resist layer 15, the LED element 16, and the two end caps 17 are not repeated here.

However, in the second embodiment, the LED tube 1 further includes a base layer 13 attached to the base layer 13 by a thermal adhesive tape. Above the cover 11, the copper circuit layer 14 is attached to the base layer 13 by the insulating thermal conductive adhesive 141; in fact, the thermal conductive adhesive-base layer 13-insulating thermal conductive adhesive 141 can be made of a metal Substitute printed circuit board (Metal Core PCB, MCPCB). In addition, the base layer 13 may be a soft base layer or a hard base layer, and the base layer 13 may be any of the following: aluminum metal layer, aluminum extruded substrate, polypropylene layer (Polypropylene, PP). ), Polyimide (PI), Polyethylene (PE), Polycarbonate (PC), and Fiberglass Board (FR-4), please refer to the sixth picture. An exploded perspective view of the LED tube. In the fabrication, the base layer 13 may be an aluminum extruded metal substrate having a certain thickness, which is disposed at the bottom of the cover 11 , and the copper circuit layer 14 is attached to the aluminum extruded type by insulating the thermal conductive adhesive 141 . Above the metal substrate.

Although the above description indicates that the copper circuit layer 14 is coupled to the driving and control circuit module by at least one wire, the embodiment of the present invention is not limited thereto; the LED as shown in FIG. 7A The driving and control circuit module 2 can also be directly disposed in the accommodating space 172 of the two end cover 17 when the LED tube of the present invention is fabricated, and the driving and controlling The circuit module 2 extends from the accommodating space 172 to a terminal group 24; and, corresponding to the terminal group 24 of the driving and control circuit module 2, the copper circuit layer 14 has a terminal connector group 18. Thus, when the end cover 17 is assembled to the cover 11, the driving and control in the end cover 17 The terminal group 24 of the circuit module 2 is embedded in the terminal connector group 18, thereby electrically connecting the copper circuit layer 14 and the driving and control circuit module 2. In addition, a terminal fixing block group 180 is further disposed on the copper circuit layer 14 for fixing the terminal connector group 18, so that when the terminal group 24 is connected to the terminal connector group 18, the terminal group 24 receives the terminal. The connector group 18 is pushed and tilted rearward. In addition, the outer cover 17 is provided with two electrical terminals 171 for electrically connecting an external power source.

In addition, as shown in FIG. 7B, the terminal detailed structure diagram of the LED tube can replace the terminal group 24 as shown in FIG. 7A in the creation of the LED tube of the present invention. And replacing the terminal connector group 18 as shown in FIG. 7A with a contact group 181; thus, when the end cover 17 is assembled to the cover 11, the shrapnel group 20 of the drive and control circuit module 2 can The contact group 181 is connected to the electrical connection between the copper circuit layer 14 and the driving and control circuit module 2.

Thus, the above-mentioned system has clearly explained the architecture and possible embodiments of the LED tube of the present invention; in addition, please continue to refer to the eighth panel, the eighth panel B, the eighth panel C, and the eighth panel, as shown in FIG. Side view. As shown in FIG. 8A, the LED element 16 used in the present creation may be a horizontally packaged LED element such as a PCB type LED element, a metal holder type LED element, or a side light LED element. In addition, as shown in FIG. 8B, the LED component 16 used in the present invention may also be a chip on board (COB) LED component; the wafer is directly The packaged LED device is fabricated by disposing at least one LED chip 21 on a substrate 22 and coating a phosphor material 23, wherein the LED chip 21 is soldered to the substrate 22 through a gold wire. . Further, since the LED chip 21 is soldered to the substrate 22 through the gold wire, the LED chip 21 is covered with a transparent colloid 21a, and then the LED chip 21 and the transparent colloid 21a are covered with the fluorescent material 23.

Furthermore, as shown in FIG. C, the LED element 16 used in the present invention may also be a flip chip package type (F/C) LED element; wherein the flip chip package type LED element is borrowed The at least one LED wafer 21 is directly soldered on a substrate 22 and covered with a colloid 23a having a fluorescent material. In the actual application of the COB technology in the present creation, the substrate 22 refers to the base layer 13 on which the copper wiring layer 14 is disposed. In addition, as shown in FIG. 8D, the structure of the flip chip type LED element may also be composed of a substrate 22, an LED chip 21, a colloid 23a having a fluorescent material, and a plurality of terminals 122; wherein the plurality of terminals The 122 series is soldered to the copper wiring layer 14 on the surface of the substrate 22 by low temperature soldering, and the P terminal and the N terminal of the LED chip 21 are soldered to the plurality of terminals 122 by high temperature soldering; finally, the phosphor is further irradiated A colloid 23a of material covers the LED wafer 21.

Thus, the above-mentioned system has completely and clearly explained the LED tube of the present invention, and, through the above, we can know that the creation department has the following advantages:

1. In the present invention, the reflective sheet 12 is disposed in the cover 11 in particular, and the reflective sheet 12 has a plurality of openings 121, wherein the light emitted by the LED elements 16 is opened. The opening 121 is emitted and reflected on the reflective sheet 12 to increase the efficiency of use of the LED light. Moreover, the light-emitting angle can be controlled through the reflective sheet to adjust the light-emitting surface of the LED tube.

2. In addition, the LED component 16 used in the present invention may be a horizontal package type LED element, a chip on board (COB) LED element, and a flip chip package (Flip chip, F/C) LED element. .

3. In addition, the simplest combination of the cover 11 and the end cover 17 used in the present invention can simultaneously achieve the copper circuit layer 14 and the driving and control circuit module 2 when the cover 11 and the end cover 17 are combined. Electrically coupled.

It is to be understood that the foregoing detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention. Both should be included in the scope of the patent in this case.

1‧‧‧LED tube

11‧‧‧ Cover

12‧‧‧reflector

111‧‧‧Contact hole

17‧‧‧End cover

171‧‧‧Electrical terminal

173‧‧‧Combined convex parts

Claims (20)

An LED lamp tube comprises: a cover body; a copper circuit layer attached to the bottom of the inner wall of the cover body by an insulating thermal conductive adhesive, and having a plurality of solder pads, and the solder pads And a driving and controlling circuit module coupled to each other; a solder resist layer covering the copper circuit layer and having a plurality of soldering windows for exposing the solder pads; a reflective sheet disposed on the cover a plurality of openings are disposed on the solder resist layer, and a plurality of LED elements are disposed on the solder resist layer, and the solder pads are soldered to each other through the soldering windows, and the LEDs are soldered to the solder pads The light emitting surface of the component is exposed to the openings; and the two end caps are respectively coupled to the two ends of the cover body, and have two electrical terminals for electrically connecting an external power source. The LED tube of claim 1, wherein the LED tube further comprises an AC cable attached to the bottom of the inner wall of the cover by a first flexible tape and coupled Connected to the driving and control circuit module and the two electrical terminals of the end cover. The LED lamp of claim 1, wherein the copper circuit layer is coupled to the driving and control circuit module located outside the cover by at least one wire. The LED lamp tube of claim 3, wherein the copper circuit layer has a terminal connector group and a terminal fixing block group, wherein the terminal connector group is used for connecting the end cap a terminal group of the driving and control circuit module, wherein the terminal fixing block group is used to abut the terminal connector group to prevent the terminal group from being connected to the terminal when the terminal group is connected to the terminal connector group The group is pushed and tilted backwards. The LED lamp of claim 3, wherein the copper circuit layer has a contact set, and the drive and control circuit module has a shrapnel group, such that when the end cap is assembled to the In the case of the cover, the shrapnel group will be in close contact with the contact set. The LED lamp tube of claim 1, wherein the end cap has a joint portion that can be coupled to both end sides of the cover body, and a light guiding reflection ring is disposed on the joint portion. To reflect the light source. The LED lamp of claim 1, wherein the solder resist layer is a white paint with reflection and heat dissipation effects. The LED lamp of claim 1, wherein the LED component can be any of the following: a horizontally packaged LED component, a chip on board (COB) LED component, and a flip chip package type ( Flip Chip, F/C) LED components. The LED lamp of claim 8, wherein the flip chip type LED component is formed by disposing at least one LED chip on a substrate and coating a colloid having a fluorescent material. And made. The LED lamp tube of claim 8, wherein the wafer direct package type LED component comprises: a substrate; at least one LED chip is disposed on the substrate; a transparent colloid Covering the LED chip; and a phosphor material disposed on the substrate to cover the LED chip and the transparent colloid. The LED lamp tube of claim 8, wherein the flip chip package type LED component comprises: a substrate having a surface of the copper circuit layer; at least one LED chip is at least two Terminal and soldered to copper wiring Above the layer; and a colloid having a fluorescent material covering the LED wafer. The LED lamp of claim 1, wherein the cover system is selected from any one of the group consisting of a glass cover and a plastic cover. The LED lamp of claim 1, wherein the cover system is selected from any one of the group consisting of a full transparent cover and a matte face. The LED lamp tube of claim 12, wherein the plastic cover body is made of a plastic material, and the lower half is made of a glass fiber and a plastic material. The LED tube of claim 13, wherein the inner wall of the full transparent cover is further provided with a diffusion film. The LED tube according to claim 1, wherein the inner surface of the two ends of the cover is respectively provided with a plurality of bonding holes, and the inner surface of the end cover is formed with a plurality of bonding convexities. The coupling protrusions may be embedded in the coupling holes when the end cover is coupled to the end side of the cover. The LED tube of claim 1, further comprising at least one LED fixing glue disposed on the bottom of the plurality of LED elements for fixing the LED elements on the solder resist layer. The LED lamp of claim 1, wherein the end cap has an accommodating space, and the driving and control circuit module is accommodated in the accommodating space. The LED lamp of claim 1, wherein the LED lamp further comprises a base layer, and the base layer is disposed on a bottom of the inner wall of the cover, and the copper circuit layer is thermally conductive by the insulation Glue is attached to the substrate. The LED tube of claim 19, wherein the substrate is selected from any one of the group consisting of: an aluminum metal layer, an aluminum extruded substrate, a polypropylene layer (PP), a poly Polyimide (PI), polyethylene (PE), polycarbonate (Polycarbonate, PC), and fiberglass circuit boards.