TWM468619U - Long-tube type LED light bulb - Google Patents

Description

Long tube type LED bulb

The present invention is a long tube type LED bulb, in particular, a plurality of LEDs (Light Emitting Diodes) light emitting diodes are respectively disposed on a plurality of substrates on a central axis of the bulb, and the plurality of substrates are respectively disposed on the plurality of substrates. The substrate is arranged around the central axis, and is matched with an arc-shaped long lampshade to form a long-tube type LED bulb to form a long-tube type LED bulb that constitutes a 360-degree sidelight illumination.

As the standard of living in modern society increases, so does the demand for various necessities. The traditional fluorescent lamp is also called a fluorescent lamp. There is a filament at each end of the tube. The tube is filled with a small amount of argon and thin mercury vapor. The inner wall of the tube is coated with phosphor powder, and the two filaments are coated. The ultraviolet rays emitted when the gas is electrically conducted cause the phosphor powder to emit visible light. Due to the heavy metal pollutant "mercury", the scrapped lamp tube causes serious damage to the environment, and the use of the LED light-emitting diode as a light source can solve the pollution problem, and the light efficiency is better, and the energy saving and carbon reduction can be achieved.

The conventional LED lamp is provided with an LED chip in the lamp body, and a hemispherical lamp cover is covered on the periphery, and the lamp cover is used to improve the luminous efficiency of the LED chip, and some LED lamps even add a plurality of LED chips to improve the brightness, but This can easily lead to an increase in the overlapping range of light, which leads to an increase in dark spots. Usually, the LED is integrally formed with the lampshade. When the LED in the lamp body is damaged, the entire lamp body can only be discarded, and the lamp cover cannot be disassembled, making it difficult to repair or replace. The internal component, and the LED lamp usually has a central axis direction as a projection direction, so that uneven illumination is generated, and the light projection angle on the side is small, and the phenomenon of luminescent dead spots and dark spots is easily generated.

In view of this, the present invention provides a long tube type LED bulb, which is disposed on a plurality of substrates on average by using a plurality of light emitting diodes in a direction perpendicular to a central axis of the bulb. The substrate of the bulb is arranged around the central axis, and is matched with an arc-shaped long lampshade to form a long LED tube, further achieving the effect of side lighting, and the LED lamp can be freely combined. The number of tubes, and the ability to disassemble the LED lamp cover to facilitate the repair or replacement of the LED chip, and the heat dissipation module with the heat dissipation design of the plurality of grooves can easily change the projection angle of the LED chip, and at the same time increase the heat dissipation area and provide good The heat convection effect of the LED lamp is mainly to improve the overall heat dissipation efficiency.

The first object of the present invention is to provide a long tube type LED bulb, wherein a plurality of LED units (light emitting diodes) are respectively disposed on a plurality of substrates on an average of a direction perpendicular to a central axis of the bulb, and the The substrates of the bulb are arranged around the central axis to achieve the effect of side lighting.

The second object of the present invention is to provide a long tube type LED bulb, wherein the heat dissipation module designed through a special heat dissipation can provide hot air convection to improve the heat dissipation of the LED units, in addition to providing a lamp cover for fitting. the goal of.

In order to achieve the above purpose, the present invention provides a long tube type LED bulb, a long tube type LED bulb, which defines a central axis, which comprises: a heat dissipation module, a plurality of first substrates, a plurality of LED units, and a plurality of A side light cover, a cover, a fixed seat, a light cup, and a circuit board.

The heat dissipation module includes: a top portion, a bottom portion, and a hollow cylinder formed by at least three sides. The first substrates are parallel to the central axis and are respectively coupled to the sides of the heat dissipation module. The LED units are respectively disposed on the first substrate in an average direction perpendicular to the central axis. The plurality of side light covers are respectively connected to the side edges of the heat dissipation module, and are disposed on the LED units of the first substrate, and are respectively disposed at two sides of the side light cover One of the bent portions is bent inside the side light cover. The cover is coupled to the top of the heat dissipation module, and a plurality of vent holes are disposed on the cover. The fixing seat is used to fix the bottom of the heat dissipation module.

The lamp cup has a housing with an open end and a conductive thread underneath, and the interior of the lamp cup has an accommodating space, and the fixed seat is fixed by the open end. The circuit board includes at least one circuit loop disposed in the accommodating space, and electrically connected to the conductive thread and the LED unit combined on the first substrate. The heat dissipating module is arranged by the at least three heat dissipating plates in a circular shape with the central axis as a standard, and is fixedly fixed on the fixing seat, and a gap is formed at a central interval between the two adjacent heat dissipating plates. The heat convection is enhanced and the heat dissipation efficiency is improved. The two sides of the heat dissipation plate are respectively provided with a corresponding groove corresponding to the opposite side, so as to provide the bending portions of the side light covers to be twisted, and corresponding to one of the outer surfaces of the heat dissipation plates A chute is provided to provide the first substrate for embedding.

1, 1a, 1b, 1c, 1d, 1e, 1f‧‧‧ long tube type LED bulb

11, 11a, 11b, 11c, 11d, 11e, 11f‧‧‧ Thermal Module

1101a‧‧‧ inner cylinder structure

1102a‧‧‧Outer cylinder structure

111, 111c, 111f‧‧‧ top

112‧‧‧ bottom

113‧‧‧ side

114, 114a, 114b, 114c, 114d, 114e, 114f‧‧‧ heat sink

1141, 1141b‧‧‧ outer surface

1142b‧‧‧heat sink

115, 115d, 115e, 115f‧‧ ‧ gap

1151d‧‧‧Connecting block

1152d‧‧‧ venting holes

1153e‧‧‧Connecting strip

1154e‧‧‧heat sink

116, 116f‧‧‧ grooves

117‧‧ ‧ chute

118a‧‧‧Three-fork structure

1181a‧‧‧Connecting side

1182a‧‧‧ first buckle side

1183a‧‧‧second clasp

119b, 119c, 119f‧‧‧ hollow body

1190f‧‧‧heat block

1191b, 1191f‧‧‧ connection

1192b‧‧‧ slotting

12‧‧‧First substrate

13‧‧‧LED unit

14, 14f‧‧‧ side lampshade

141, 141f‧‧‧ bends

142f‧‧‧ embossing

15‧‧‧ Cover

151‧‧‧ venting holes

16‧‧‧ Fixed seat

17‧‧‧Light cup

171‧‧‧Open end

172‧‧‧Electrical thread

173‧‧‧ accommodating space

174‧‧‧ vents

18‧‧‧ boards

181‧‧‧Control circuit

19c, 19e, 19f‧‧‧ second substrate

20c, 20e‧‧‧ top lampshade

21e‧‧‧Center hemisphere light

22e‧‧‧Temporary hemisphere lampshade

9‧‧‧ center axis

FIG. 1 is a perspective view of a long tube type LED bulb according to a first preferred embodiment of the present invention.

FIG. 2 is a three-dimensional combination diagram of a long tube type LED bulb according to a first preferred embodiment of the present invention.

FIG. 3 is a partially enlarged schematic view showing the heat dissipation module of the long tube type LED bulb according to the first preferred embodiment of the present invention.

FIG. 4 is a schematic perspective view of a long tube type LED bulb according to a second preferred embodiment of the present invention.

FIG. 5 is a three-dimensional combination diagram of a long tube type LED bulb according to a second preferred embodiment of the present invention.

FIG. 6 is a partially enlarged schematic view showing a heat dissipation module of a long tube type LED bulb according to a second preferred embodiment of the present invention.

Figure 7 is a perspective view of a long tube type LED bulb according to a third preferred embodiment of the present invention.

FIG. 8 is a three-dimensional combination diagram of a long tube type LED bulb according to a third preferred embodiment of the present invention.

FIG. 9 is a partially enlarged schematic view showing a heat dissipation module of a long tube type LED bulb according to a third preferred embodiment of the present invention.

FIG. 10 is a perspective view of a long tube type LED bulb according to a fourth preferred embodiment of the present invention.

FIG. 11 is a three-dimensional combination diagram of a long tube type LED bulb according to a fourth preferred embodiment of the present invention.

FIG. 12 is a partially enlarged schematic view showing a heat dissipation module of a long tube type LED bulb according to a fourth preferred embodiment of the present invention.

Figure 13 is a perspective view of the long tube type LED bulb of the fifth preferred embodiment of the present invention.

Figure 14 is a perspective view showing the combination of the long tube type LED bulb of the fifth preferred embodiment of the present invention.

FIG. 15 is a perspective view showing a heat dissipation module of a long tube type LED bulb according to a fifth preferred embodiment of the present invention.

Figure 16 is a perspective view of the long tube type LED bulb of the sixth preferred embodiment of the present invention.

17 is a three-dimensional combination diagram of a long tube type LED bulb according to a sixth preferred embodiment of the present invention.

FIG. 18 is a partially enlarged schematic view showing a heat dissipation module of a long tube type LED bulb according to a sixth preferred embodiment of the present invention.

Figure 19 is a perspective view of the long tube type LED bulb of the seventh preferred embodiment of the present invention.

FIG. 20 is a three-dimensional combination diagram of a long tube type LED bulb according to a seventh preferred embodiment of the present invention.

FIG. 21 is a partially enlarged schematic view showing a heat dissipation module of a long tube type LED bulb according to a seventh preferred embodiment of the present invention.

In order to more clearly describe the long tube type LED bulb proposed in the present application, the following detailed description will be made in conjunction with the drawings.

Please refer to Figure 1, Figure 2, and Figure 3, Figure 1, Figure 2, and Figure 3. The present invention is a three-dimensional exploded schematic view of a long tube type LED bulb according to a first preferred embodiment of the present invention, a three-dimensional combination diagram, and a partial enlarged schematic view of the heat dissipation module. The long tube type LED bulb 1 defines a center shaft 9 including a heat dissipation module 11, a plurality of first substrates 12, a plurality of LED units 13, a plurality of side light covers 14, and a cover plate 15. A fixing base 16, a light cup 17, and a circuit board 18.

The heat dissipation module 11 includes a top portion 111, a bottom portion 112, and at least three side surfaces 113. In the first preferred embodiment of the present invention, the heat dissipation module 11 is composed of five heat dissipation plates 114 (or three or even more) to provide five pieces of the first substrate 12 for fitting. And the central axis 9 is arranged in a ring shape and is fixedly fixed on the fixing base 16, and a gap 115 is disposed at a central interval between the two adjacent heat dissipation plates 114. The gap 115 can enhance the thermal convection. At the same time, the heat dissipation efficiency of the heat dissipation module 11 is improved. The two sides of the heat dissipation plate 114 are respectively provided with a corresponding one of the recesses 116 to provide a combination of the side cover 14 and a corresponding one of the outer surfaces 1141 of the heat dissipation plate 114. The grooves 117 are combined to provide the first substrate 12, respectively. The heat dissipation plate 114 of the heat dissipation module 11 may be made of a metal material having high thermal conductivity or a high thermal conductivity insulation material.

The plurality of first substrates 12 are parallel to the central axis 9 and are respectively coupled to the side surfaces 113 of the heat dissipation module 11 , that is, the number of the first substrates 12 and the number of the side surfaces 113 . the same. Further, the first substrate 12 is respectively provided with the LED unit 13 coupled thereto, and is embedded in the sliding groove 117 formed by the heat dissipation plates 114, and is further disposed on the first substrate 12 A plurality of IC capacitors are disposed to adjust the voltage required for the LED unit 13 to emit light, and the thermal energy generated by the LED unit 13 when the LED unit 13 is illuminated by the first substrate 12 is transmitted to the heat dissipation module 11 through the first substrate 12. Exhausted to the outside world. An insulating epoxy resin (Epoxy) may be used on each of the first substrates 12 to avoid short circuit between the IC capacitor and the LED unit 13. In this embodiment, the material of the first substrate 12 may be a metal material with better thermal conductivity or a high thermal conductive material.

A plurality of LED units 13 are respectively disposed on the first substrate 12 in an average direction perpendicular to the central axis 9. The plurality of side light covers 14 are respectively connected to the side edges 113 of the heat dissipation module 11 in an arc shape, and are disposed on the LED unit 13 disposed on the first substrate 12, and are on the side The two ends of the lamp cover 14 are respectively provided with a bent portion 141 bent toward the inside of the side cover 14 . The two corresponding side portions 141 of the side light covers 14 can be respectively inserted into the side The recesses 114 are disposed in the recesses 114.

The cover plate 15 is coupled to the top portion 111 of the heat dissipation module 11 , and a plurality of vent holes 151 are disposed on the cover plate 15 . The fixing base 16 is configured to fix the bottom portion 112 of the heat dissipation module 11 and is further fixedly coupled to the lamp cup 17. The fixing seat 16 can be further fixed on the lamp cup 17 by a plurality of screws or threads or clips disposed on the periphery of the fixing body. The lamp cup 17 is a housing having an open end 171 and a conductive thread 172 disposed thereon. The lamp cup 17 has an accommodating space 173 therein. The fixed end 16 is fixed by the open end 171. . A plurality of heat dissipation holes 174 may be disposed at the predetermined position on the lamp cup 17 and penetrate through the accommodating space 173, so that the heat generated by the circuit board 18 accommodated in the lamp cup 17 can be dissipated by the heat dissipation. The hole 174 achieves the purpose of dissipating heat from the outside.

In the preferred embodiment of the present invention, the conductive thread 172 of the lamp cup 17 constitutes a metal spiral adapter conforming to a conventional conventional tungsten filament bulb, and the types thereof are roughly: E10, E12, E14, E26, E27, E40 and other different specifications, the number after the letter E here indicates the diameter of the conductive thread 172 (for example, the household bulb is usually E27, that is, the diameter of the thread of the metal spiral adapter of the bulb is 27mm) =2.7cm). The material of the lamp cup 17 can be one of insulating materials such as plastic or plastic steel.

The circuit board 18 includes at least one control circuit 181 extending from the open end 171 into the accommodating space 173 of the lamp cup 17, and electrically connected to the conductive thread 172, and through one of the connected The wires (not shown) are electrically connected to the conductive threads 172 and the LED units 13 on the first substrate 12, respectively.

That is, the long tube type LED bulb 1 of the first preferred embodiment of the present invention is formed by a combination of the heat dissipation module 11 and the cover plate 15 which is substantially erected in five curved strips. The tubular LED bulb 1 has an average side illumination angle of more than 72 degrees for each of the side lamp covers 14 to achieve a 360 degree side illumination effect of the long tube type LED bulb 1.

In the other preferred embodiments of the present invention described below, since the components are the same or similar to the foregoing embodiments, the same components and structures will not be described below, and the same components will be directly given the same names. And number, and the same name is given for similar components, but an additional letter is added after the original number to distinguish and not repeat them.

Please refer to Figure 4, Figure 5, and Figure 6, Figure 4, Figure 5, and Figure 6. The three-dimensional exploded schematic view of the long tube type LED bulb according to the second preferred embodiment of the present invention, a three-dimensional combination schematic diagram, and a partial enlarged schematic view of the heat dissipation module. The difference between the long tube type LED bulb of the second preferred embodiment of the present invention and the first preferred embodiment of the long tube type LED bulb of FIG. 1, FIG. 2 and FIG. 3 is that the second creation of the present invention The long-tube type LED bulb 1a of the preferred embodiment, wherein the heat-dissipating module 11a further comprises at least three three-pronged structures 118a respectively combined with the heat-dissipating plates 114a, one of the three-pronged structures 118a connecting the sides 1181a The first fastening edge 1182a and the second fastening edge 1183a are respectively connected to the heat dissipation plate 114a, and the first fastening edge 1182a and the second fastening edge 1183a are mutually connected to each other. The preset angle is formed. The three-pronged structure 118a further comprises an inner cylinder structure 1101a and an outer cylinder structure 1102a by means of a snap-fit manner. The side surface of the inner cylinder structure 1101a is closed.

The end of the first fastening edge 1182a is a convex curved surface, and the end of the second fastening edge 1183a is a concave curved surface, and the convex surface of the first fastening edge 1182a is respectively between the adjacent two-trigger structures 118a. And the concave curved surface of the second fastening edge 1183a is engaged with each other to form the inner cylinder structure 1101a, and the heat dissipation plates 114a respectively provide the first substrate 12 to be combined to form the outer cylinder structure 1102a. The gap 115 is still maintained between the two heat dissipation plates 114a, so as to achieve air circulation and heat dissipation.

Referring to FIG. 7 , FIG. 8 , and FIG. 9 , FIG. 7 , FIG. 8 , and FIG. 9 are respectively a three-dimensional exploded schematic view, a three-dimensional combination schematic diagram, and a heat dissipation mode of a long tube type LED bulb according to a third preferred embodiment of the present invention. The group is partially enlarged. The difference between the long tube type LED bulb of the third preferred embodiment of the present invention and the first preferred embodiment of the long tube type LED bulb of FIG. 1 , FIG. 2 and FIG. 3 is that the third creation of the present invention is The long tube type LED bulb 1b of the preferred embodiment, wherein the heat dissipation module 11b further includes a hollow body 119b, the hollow body 119b is located above the central axis 9 and is respectively connected to the plurality of connecting ends 1191b The heat dissipation plates 114b of the annular array are joined to be integrally formed.

The heat dissipation plates 114b each have a heat dissipation groove 1142b. The heat dissipation grooves 1142b are respectively disposed between the two sliding grooves 117 and located at the center of the outer surface 1141b, and the heat dissipation grooves 1142b are respectively in parallel with the central axis 9. The side of the hollow body 119b has a strip-shaped slit 1192b, so that the air in the hollow body 119b can be thermally convected with the outside through the slit 1192b. In the third preferred embodiment of the present invention, the heat dissipation module 11b is composed of five fins 114b.

Referring to FIG. 10, FIG. 11 and FIG. 12, FIG. 10, FIG. 11 and FIG. 12 are respectively a perspective exploded view and a three-dimensional combination diagram of a long tube type LED bulb according to a fourth preferred embodiment of the present invention. And a partial enlarged schematic diagram of the heat dissipation module. The difference between the long tube type LED bulb of the fourth preferred embodiment of the present invention and the third preferred embodiment of the long tube type LED bulb of FIG. 7 , FIG. 8 and FIG. 9 is that the fourth creation In the long tube type LED bulb 1c of the preferred embodiment, the hollow cavity 119c of the heat dissipation module 11c is in a closed state.

The long tube type LED bulb 1c further includes a second substrate 19c and a top cover 20c. The second substrate 19c is provided with the LED units 13 coupled thereto, and is respectively coupled to the top portion 111c of the heat dissipation module 11c, and electrically connected to the conductive thread 172 of the lamp cup 17, and the top portion The lamp cover 20c covers the LED units 13 of the second substrate 19c and is combined with one end of the side light covers 14. In the fourth preferred embodiment of the present invention, the heat dissipation module 11c is composed of three heat sinks 114c. The top lampshade 20c is constructed by three semi-circular and annular overlapping connections. The second substrate 19c can also be used as the insulating epoxy (Epoxy) used on the first substrate 12 to avoid short circuit between the IC capacitor and the LED unit 13. The material of the second substrate 19c may also be a metal material with better thermal conductivity or a highly thermally conductive insulating material.

That is to say, the long tube type LED bulb 1c of the fourth preferred embodiment of the present invention is formed by the combination of the heat dissipation module 11c and the top lamp cover 20c. The long tube type LED bulb 1c, in which each side of the side lamp cover 14 is mainly responsible for the side light illumination angle of more than 120 degrees, to achieve the 360 degree side illumination effect of the long tube type LED bulb 1c.

Referring to FIG. 13 , FIG. 14 , and FIG. 15 , FIG. 13 , FIG. 14 , and FIG. 15 are respectively a perspective exploded view and a combination of a long tube type LED bulb according to a fifth preferred embodiment of the present invention. The three-dimensional schematic diagram and the three-dimensional schematic diagram of the heat dissipation module. The difference between the long tube type LED bulb of the fifth preferred embodiment of the present invention and the fourth preferred embodiment of the long tube type LED bulb of FIG. 10, FIG. 11 and FIG. 12 is that the creation The long tube type LED bulb 1d of the fifth preferred embodiment, wherein the heat dissipation module 11d is composed of three heat dissipation plates 114d for respectively providing three pieces of the first substrate 12 to be fitted by the central axis 9 is a reference annular array and is coupled to the fixing base 16, and a plurality of connecting blocks 1151d disposed in the gap 115d at the center of the two adjacent heat radiating plates 114d connect the two adjacent heat radiating plates 114d. And a venting hole 1152d is spaced apart from the center of the two connecting blocks 1151d, and the venting hole 1152d can strengthen the heat convection and improve This heat dissipation efficiency.

Referring to FIG. 16 , FIG. 17 , and FIG. 18 , FIG. 16 , FIG. 17 , and FIG. 18 are respectively a perspective exploded view and a perspective view of a long tube type LED bulb according to a sixth preferred embodiment of the present invention. The combination diagram and the partial enlargement diagram of the heat dissipation module. The difference between the long tube type LED bulb of the sixth preferred embodiment of the present invention and the fifth preferred embodiment of the long tube type LED bulb of FIG. 13 , FIG. 14 and FIG. 15 is that The long tube type LED bulb 1e of the sixth preferred embodiment is created. The heat dissipating module 11e is a hollow cylindrical structure integrally formed by extruding aluminum, and the gap 115e at the center of the two adjacent heat dissipating plates 114e. One of the connecting strips 1153e is provided, and the connecting strips 1153e are respectively connected in series with each other in a ring shape, and a heat dissipating groove 1154e is respectively disposed on the connecting strips 1153e. In the sixth preferred embodiment of the present invention, the heat dissipation module 11e is formed by six pieces of the heat dissipation fins 114e which are respectively connected in series by the connecting strips 1153e.

The top cover 20e includes a central hemispherical lamp cover 21e and a plurality of peripheral hemispherical lamp covers 22e; wherein the peripheral hemispherical lamp cover 22e is annularly arrayed and tangentially connected to the central hemispherical lamp cover 21e, and the two peripheral hemispheres The body shades 22e are also tangentially connected to each other. The central hemispherical lampshade 21e and the plurality of peripheral hemispherical lampshades 22e respectively cover and correspond to a plurality of LED units 13 disposed at predetermined positions on the second substrate 19e. In the sixth preferred embodiment of the present invention, the peripheral hemispherical lampshade 22e is six groups, and is centered around the center hemispherical lampshade 21e and is tangentially connected; wherein the radius of the central hemispherical lampshade 21e is greater than the The radius of the peripheral hemisphere shade 22e.

That is, the long tube type LED bulb 1e of the sixth preferred embodiment of the present invention is substantially erected in six arcuate strips, the side side cover 14 via the heat dissipation module 11e and the central hemispherical lamp cover 21e and plural The top lamp cover 20e of the peripheral hemispherical lampshade 22e is combined with the long-tube type LED bulb 1e, wherein the average side illumination angle of each of the side lamp covers 14 is more than 60 degrees to achieve the length. Tube type LED bulb 1e 360 degree side lighting effect throughout the week.

Referring to FIG. 19, FIG. 20, and FIG. 21, FIG. 19, FIG. 20, and FIG. 21 are respectively a perspective exploded view of a long tube type LED bulb according to a seventh preferred embodiment of the present invention. The three-dimensional combination diagram and the partial enlarged schematic diagram of the heat dissipation module. The difference between the long tube type LED bulb of the seventh preferred embodiment of the present invention and the fourth preferred embodiment of the long tube type LED bulb of FIG. 10, FIG. 11 and FIG. 12 is that the creation Seventh preferred embodiment The long tube type LED bulb 1f, wherein the hollow cavity 119f of the heat dissipation module 11f is an open combination type, and at least two heat dissipation blocks 1190f are arranged in an annular array pattern on the central axis 9 and pass through a plurality of The connection terminals 1191f are integrally formed by integrally connecting the heat dissipation block 1190f and a plurality of heat dissipation plates 114f having an annular array centered on the central axis 9.

The second substrate 19f of the long tube type LED bulb 1f is provided with the LED unit 13 coupled thereto, and is coupled to the top portion 111f of the heat dissipation module 11f, and the conductive thread 172 of the lamp cup 17 The cover plate 15 is coupled to the top portion 111f of the heat dissipation module 11f and covers the second substrate 19f, and a plurality of vent holes 151 are disposed on the cover plate 15 to provide the LED. The heat energy generated when the unit 13 emits light is discharged. In the seventh preferred embodiment of the present invention, the heat dissipation module 11f is formed by annularly arranging at least two arc-shaped heat dissipation blocks 1190f, and a predetermined distance between the two heat dissipation blocks 1190f is used as heat dissipation. aisle. The heat dissipating blocks 1190f may be integrally formed on the fixing base 16 by two, three, or four or more blocks along the central axis 9 to form an integral hollow body 119f.

In other words, the bent portion 141f on both sides of the side light cover 14f of the long tube type LED bulb 1f of the seventh preferred embodiment of the present invention is a fork-shaped clamp, and is disposed on the inner side of the side light cover 14f. There is a continuous wavy rib 142f, which can further refract the light projected by the LED unit 13 to be uniform. The two sides of the heat dissipation plate 114f are respectively provided with the corresponding recesses 116f for respectively providing the bent portions 141f of the side of the side cover 14f to be fitted and engaged, and adjacent to each other. The gap 115f is disposed at a central interval of the two heat dissipation plates 114f. The gap 115f can enhance the thermal convection and improve the heat dissipation efficiency of the heat dissipation module 11f.

The embodiments described above are not intended to limit the scope of application of the present invention. The scope of protection of the present invention should be based on the technical spirit defined by the content of the patent application scope of the present invention and the scope thereof. That is to say, the equal changes and modifications made by Dafan in accordance with the scope of application for patent creation will not lose the essence of this creation, nor will it deviate from the spirit and scope of this creation, so it should be regarded as the further implementation of this creation.

1‧‧‧Long tube type LED bulb

11‧‧‧ Thermal Module

111‧‧‧ top

112‧‧‧ bottom

113‧‧‧ side

114‧‧‧heat plate

1141‧‧‧ outer surface

115‧‧‧ gap

116‧‧‧ Groove

117‧‧ ‧ chute

12‧‧‧First substrate

13‧‧‧LED unit

14‧‧‧Side lampshade

141‧‧‧Bend

15‧‧‧ Cover

151‧‧‧ venting holes

16‧‧‧ Fixed seat

17‧‧‧Light cup

171‧‧‧Open end

172‧‧‧Electrical thread

173‧‧‧ accommodating space

174‧‧‧ vents

18‧‧‧ boards

181‧‧‧Control circuit

9‧‧‧ center axis

Claims (14)

A long tube type LED bulb defines a central axis, comprising: a heat dissipation module comprising: a top portion, a bottom portion, and a hollow cylinder formed by at least three sides; a plurality of first substrates parallel to each other The plurality of LED units are respectively disposed on the first substrate in a direction perpendicular to the central axis direction; the plurality of side light covers are coupled to each other on the side surfaces of the heat dissipation module; The side of the heat dissipation module is disposed on the LED unit of the first substrate; wherein the side light covers are respectively arc-shaped strips, and are respectively disposed at two sides of the side light cover a bent portion is bent inside the side light cover; a fixing seat is used for fixing the bottom of the heat dissipation module; and a light cup is a casing having an open end and a conductive thread under the cover The inside of the lamp cup has an accommodating space, and the fixing seat is fixed by the open end; and a circuit board includes at least one circuit loop disposed in the accommodating space, and respectively corresponding to the conductive thread And the The bonded on a substrate made electrically connected to the LED unit. The long tube type LED bulb of claim 1, further comprising: a cover plate coupled to the top of the heat dissipation module, and a plurality of the cover plates are disposed on the cover plate Vented holes. The long tube type LED bulb according to claim 1, wherein the heat dissipation module is arranged in a ring shape by at least three heat dissipation plates and is fixedly fixed on the fixing seat, and each of the heat dissipation modules a gap is formed in a central portion of the adjacent two heat dissipation plates; the two sides of the heat dissipation plate are respectively provided with one corresponding groove corresponding to the reverse direction, so as to provide the bending portion of the side light cover to be combined, and One of the outer surfaces of the heat dissipation plates is provided with a corresponding one of the sliding grooves to provide the first substrates to be embedded. The long tube type LED bulb of claim 3, further comprising a second substrate and a top lamp cover; wherein the second substrate provides the The LED unit is coupled to the top of the heat dissipation module and electrically connected to the conductive thread, and the top lamp cover covers the LED units of the second substrate, and One of the side light covers is combined. The long tube type LED bulb according to claim 3, wherein the heat dissipation module further comprises a hollow cavity, the hollow cavity system is located above the central axis, and respectively respectively, the heat dissipation plates of the annular array It is integrally formed by a plurality of connecting ends. The long tube type LED bulb of the third aspect of the invention, wherein the heat dissipation plates respectively have a heat dissipation groove, and the heat dissipation grooves are respectively disposed between the two sliding grooves and located at the center of the outer surface. And the heat dissipation slots are parallel to the central axis. The long tube type LED bulb according to claim 5, wherein the side of the hollow body has a strip-shaped groove, so that gas in the hollow cavity can be thermally convected through the slot. The long tube type LED light bulb of claim 3, wherein a plurality of connecting blocks are disposed in the gap between the two heat dissipating plates of the heat dissipating module, and two adjacent heat dissipating plates are connected, and A venting hole is spaced in the center of the two connecting blocks. The long tube type LED bulb of claim 4, wherein the top lamp cover comprises: a central hemispherical lamp cover and a plurality of peripheral hemispherical lamp covers; wherein the peripheral hemispherical lamp cover is the central hemispherical lamp cover The central annular array is tangentially connected, and the two peripheral hemispherical lampshades are also tangentially connected to each other. The long tube type LED bulb according to claim 9, wherein the radius of the center hemisphere cover is larger than the radius of the peripheral hemisphere cover. The long tube type LED bulb according to claim 3, wherein the heat dissipation module is a hollow cylinder structure integrally formed by aluminum extrusion. The long tube type LED light bulb of claim 3, wherein the heat dissipation module further comprises at least three three-pronged structures respectively combined with the heat dissipation plates, one of the three-pronged structures connecting the edge systems The first fastening edge and the second fastening edge are mutually at a predetermined angle; the first fastening edge and the second fastening edge are respectively connected to each other; The trifurcated structure further comprises an inner cylinder structure and an outer cylinder structure by means of engaging the heat dissipation plate; wherein the side surface of the inner cylinder structure is closed. The long tube type LED bulb according to claim 12, wherein the end of the first fastening edge is a convex curved surface, and the end of the second fastening edge is a concave curved surface, and the phase The adjacent two-three-fork structure is respectively engaged with the convex curved surface of the first fastening edge and the concave curved surface of the second fastening edge to form the inner cylinder structure, and the heat dissipation plates respectively provide the first substrate They are combined to form the outer cylinder structure, and a gap is formed between the two heat dissipation plates. The long tube type LED bulb according to claim 1, wherein a plurality of heat dissipation holes are disposed at a predetermined position on the lamp cup and penetrate through the accommodating space.