CN102644866A - LED (Light-Emitting Diode) lamp bulb with good heat radiation - Google Patents
LED (Light-Emitting Diode) lamp bulb with good heat radiation Download PDFInfo
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- CN102644866A CN102644866A CN2012100592787A CN201210059278A CN102644866A CN 102644866 A CN102644866 A CN 102644866A CN 2012100592787 A CN2012100592787 A CN 2012100592787A CN 201210059278 A CN201210059278 A CN 201210059278A CN 102644866 A CN102644866 A CN 102644866A
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- 230000017525 heat dissipation Effects 0.000 claims description 95
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
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- JAYCNKDKIKZTAF-UHFFFAOYSA-N 1-chloro-2-(2-chlorophenyl)benzene Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1Cl JAYCNKDKIKZTAF-UHFFFAOYSA-N 0.000 description 8
- 101100084627 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) pcb-4 gene Proteins 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- ZHBBDTRJIVXKEX-UHFFFAOYSA-N 1-chloro-2-(3-chlorophenyl)benzene Chemical compound ClC1=CC=CC(C=2C(=CC=CC=2)Cl)=C1 ZHBBDTRJIVXKEX-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
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- 230000001737 promoting effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The invention discloses an LED (Light-Emitting Diode) lamp bulb with good heat radiation. The LED lamp bulb a lamp cover, a lamp cup, an LED chip, a driving PCB (Printed Circuit Board) box, a driving PCB, a lamp cap molding piece and a lamp cap, wherein a plurality of vertical heat radiation seams are arranged on the side wall of the lower part of the lamp cup and are communicated with a hollow cavity of the lamp cup; a mounting face is arranged at the upper end of the lamp cup and the mounting face is fixedly connected with the LED chip or is fixedly connected with the LED Chip by using the PCB through mounting the LED chip; a flow guide cavity provided with an inner cavity for entering the lamp cover is arranged at the top end of the lamp cover; and the bottom end of the flow guide cavity is connected to the upper end of the hollow cavity so that air outside the LED lamp bulb can flow through the radiation seams among the flow guide cavity, the hollow cavity of the lamp cup and the lamp cup. Due to the adoption of the structure, when the LED lamp bulb is lighted, the heat emitted by the LED chip of the LED lamp bulb can be conducted to a heat radiation sheet on the back through a heat conduction base so as to be dissipated to the hollow cavity of the lamp cup, and then the heat is radiated to the outside air through a flow guide channel which is communicated with the outside air through the heat radiation seam of the flow guide cavity, the hollow cavity of the lamp cup and the lamp cup, so that the exchanging and communication of cold air and hot air can be accelerated and the heat radiation problem of the LED lamp is effectively solved.
Description
Technical Field
The invention relates to a lighting device, in particular to a traditional-imitation incandescent bulb which has good heat dissipation and takes an LED as a light source.
Background
The traditional illuminating lamp is an incandescent lamp made of tungsten wires, the shape of a bulb of the traditional illuminating lamp is popular with the public, but the incandescent lamp made of tungsten wires is low in lighting effect and short in service life, so that the use of the incandescent lamp is restricted.
The LED, namely the light-emitting diode, is made of an electroluminescent semiconductor material, and has the excellent characteristics of low voltage, high efficiency, good monochromaticity, strong applicability, good stability, short response time, long service life, no environmental pollution and the like; the LED is generally powered by a low-voltage power supply, the power supply voltage is generally between 2 and 24V, and the LED is safer; the energy consumption of the LED is reduced by 80 percent compared with that of an incandescent lamp with the same lighting effect; each unit LED is small, can be prepared into various shapes of lighting fixtures, and is suitable for different environments.
Due to the excellent characteristics of LEDs, LEDs are widely used in the fields of illumination, decoration, and the like, including LED bulbs made of LED chips. However, the LED bulb, especially the miniaturized LED bulb, has a junction temperature heat dissipation problem, so that the popularization and the application of the LED bulb are affected. The heat dissipation types of the existing LED bulb mainly include passive heat dissipation and active heat dissipation, and the passive heat dissipation includes conduction, convection and radiation heat dissipation, wherein the effect of the mode of improving the convection heat dissipation is more effective and obvious.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the LED bulb with good heat dissipation, in particular a mode of improving convection heat dissipation, can better solve the heat dissipation problem of the LED bulb, not only keeps the excellent characteristics of the LED bulb, but also can well realize heat dissipation, thereby effectively promoting the popularization and the use of the LED bulb, in particular to a miniaturized LED bulb.
The technical scheme adopted by the invention for solving the technical problems is as follows: an LED bulb with good heat dissipation comprises a lampshade, a lamp cup, an LED chip, a drive PCB box, a drive PCB board, a lamp holder plastic part and a lamp holder; the lampshade, the lamp cup, the lamp holder plastic part and the lamp holder are connected in sequence; the lamp cup is provided with a through cavity up and down; the driving PCB box is arranged between the cavity of the lamp cup and the inner cavity of the lamp cap plastic part, a preset gap is arranged between the outer wall of the driving PCB box and the inner wall of the cavity of the lamp cup, and the driving PCB is arranged between the inner cavity of the driving PCB box and the inner cavity of the lamp cap plastic part; the lamp cup comprises an upper part and a lower part, a plurality of vertical heat dissipation strips are arranged on the side wall of a cavity at the lower part of the lamp cup, heat dissipation seams are formed between adjacent heat dissipation strips, and the heat dissipation seams are directly communicated with the cavity of the lamp cup; the upper end of the upper part of the lamp cup is provided with a mounting surface, and the LED chip is mounted on the mounting surface of the upper end of the upper part of the lamp cup; the top end of the lampshade is provided with a flow guide cavity communicated with the inner cavity of the lampshade, and the bottom end of the flow guide cavity is connected to the upper end of the cavity of the lamp cup, so that air outside the LED bulb can flow among the flow guide cavity, the cavity of the lamp cup and the heat dissipation seam of the lamp cup.
Further, the LED lamp also comprises a PCB board for mounting the LED chip; the PCB for mounting the LED chip is fixedly connected to a mounting surface at the upper end of the upper part of the lamp cup, and the LED chip is fixed on the PCB for mounting the LED chip.
The lateral wall of the cavity of the lower part of the lamp cup is of an annular structure which is sealed along the circumferential direction, the heat dissipation strips are arranged outside the lateral wall of the cavity of the lower part of the lamp cup, heat dissipation holes which can be communicated with the cavity of the lamp cup are formed in the lateral wall corresponding to the top ends of the heat dissipation seams formed between the adjacent heat dissipation strips, and air outside the LED bulb flows between the heat dissipation seams of the heat dissipation slits and the heat dissipation cavity of the lamp cup.
The mounting surface of the upper end of the upper part of the lamp cup is a plane or a curved surface.
The mounting surface of the upper end of the upper part of the lamp cup is a plurality of inclined surfaces or a plurality of curved surfaces.
And a plate-type structure is formed between the mounting surface at the upper end of the upper part of the lamp cup and the inner wall of the cavity of the lamp cup.
The inner wall surface of the cavity of the lamp cup is also provided with a plurality of radiating fins which are vertically arranged.
The radiating fin and the lamp cup are of an integrated structure.
The radiating fin is of a single-body structure and is fixed with the inner wall surface of the cavity of the lamp cup.
The top of water conservancy diversion chamber is equipped with the sunshade, is equipped with one or more ventilative aperture on this sunshade.
The flow guide cavity and the lampshade are of an integrated structure.
The flow guide cavity is of a single structure, a large through hole is formed in the top end of the lampshade, the periphery of the top end of the flow guide cavity is matched in the large through hole of the lampshade, and the bottom end of the flow guide cavity is fixed with the upper end of the cavity of the lamp cup.
At least two inclined planes or curved surfaces are arranged at the upper end of the upper part of the lamp cup.
The PCB for mounting the LED chip is fixed on the mounting surface at the upper end of the upper part of the lamp cup in a dispensing fixing mode, a buckling fixing mode or a screw fixing mode.
The LED lamp further comprises a cover plate, the cover plate covers the PCB for mounting the LED chips, and the cover plate is provided with a lens which can be correspondingly matched with the LED chips on the PCB for mounting the LED chips.
The upper part and the lower part of the lamp cup are of an integrated structure.
The upper part and the lower part of the lamp cup are of split structures; the upper part of the lamp cup and the lower part of the lamp cup are fixed through threaded connection, glue bonding or snap fit.
The invention relates to an LED bulb with good heat dissipation, which is characterized in that a PCB board for installing LED chips is fixed on a mounting surface at the upper end of a lamp cup, the LED chips are fixed on the PCB board for installing the LED chips, of course, the PCB board for installing the LED chips is not needed to be installed, the LED chips are directly fixed on the mounting surface at the upper end of the lamp cup, a plate-type structure formed between the mounting surface at the upper end of the lamp cup and the inner wall of a cavity of the lamp cup plays a role of a heat-conducting base, the inside of the lamp cup is designed into a cavity structure, a plurality of heat-dissipating strips along the vertical direction are arranged on the side wall at the lower part of the lamp cup, heat-dissipating seams are formed between the adjacent heat-dissipating strips, the heat-dissipating seams are directly communicated with the cavity of the lamp cup or communicated with the cavity of the lamp cup through heat-dissipating holes, meanwhile, the back part of the heat-conducting base is designed into hollow heat-, in the structure, the cavity of the lamp cup, namely the back of the heat conducting base can be communicated with the outside air through the flow guide cavity and the heat radiating seam of the lamp cup, so that the heat emitted by the LED chip is radiated through the radiating fins on the inner wall surface of the cavity of the lamp cup, the PCB for installing the LED chip, the heat conducting base, namely the plate-type structure formed between the installing surface of the upper end of the lamp cup and the inner wall of the cavity of the lamp cup, and the back of the heat conducting base, namely the cavity of the lamp cup, is communicated with the outside air to form a good conduction and radiation conduction and convection way, thereby playing a good and effective convection radiating role, simultaneously conducting the heat radiating fins of the lamp cup and the heat radiated into the cavity of the lamp cup to heat the air flowing through the cavity of the lamp cup, and the heated hot air can flow to high positions in an accelerated and repeated manner, further accelerating and increasing the flow rate and the flow rate of the air flowing into and out of the cavity of the lamp cup and, the convection heat dissipation effect is further improved and increased, so that the heat dissipation problem of the LED lamp is effectively solved, and the service life of the LED lamp is prolonged by the LED lamp with the same specification; or the LED lamps with the same power are designed to be more miniaturized, or the LED lamps with the same size are designed to be more power.
The invention has the advantages that the lamp cup is provided with the vertically through cavity, the driving PCB box is arranged between the cavity of the lamp cup and the cavity of the lamp cap plastic part, the preset gap is arranged between the outer wall of the driving PCB box and the inner wall of the cavity of the lamp cup, the driving PCB is arranged between the cavity of the driving PCB box and the cavity of the lamp cap plastic part, the side wall of the lower part of the lamp cup is provided with a plurality of vertical radiating strips, radiating seams are formed between the adjacent radiating strips, and the radiating seams are directly communicated with the cavity of the lamp cup or communicated with the cavity of the lamp cup through radiating holes; the upper end of the lamp cup is provided with a plurality of mounting surfaces, and the LED chip is mounted on the mounting surface at the upper end of the lamp cup by a PCB board through mounting the LED chip or is directly fixed on the mounting surface at the upper end of the lamp cup; the top end of the lampshade is provided with a flow guide cavity communicated with the inner cavity of the lampshade, and the bottom end of the flow guide cavity is connected to the upper end of the cavity of the lamp cup, so that the air outside the LED bulb can flow between the flow guide cavity, the cavity of the lamp cup and the heat dissipation seam of the lamp cup, or the air outside the LED bulb flows between the flow guide cavity, the cavity of the lamp cup, the heat dissipation hole of the lamp cup and the heat dissipation seam of the lamp cup. This structure can make the heat that the LED chip light source sent distribute away through the fin of the back of heat conduction base to through the intercommunication of water conservancy diversion passageway that the heat dissipation seam of water conservancy diversion chamber, the cavity of lamp cup and lamp cup formed and outside air, accelerated the exchange circulation of cold and hot air, solved the heat dissipation problem of LED lamps and lanterns effectively. Because the top end of the lampshade is provided with the flow guide cavity communicated with the inner cavity of the lampshade, and the bottom end of the flow guide cavity is connected to the upper end of the cavity of the lamp cup, a siphon effect is formed, and the circulation of air is accelerated.
The invention is further explained in detail with the accompanying drawings and the embodiments; however, the LED bulb with good heat dissipation of the present invention is not limited to the embodiment.
Drawings
FIG. 1 is a schematic external view of the present invention according to an embodiment;
FIG. 2 is a schematic view of the construction of the present invention according to one embodiment;
FIG. 3 is an exploded perspective view of the present invention;
FIG. 4 is a schematic perspective view of a lamp cup according to the first embodiment of the present invention;
FIG. 5 is a cross-sectional view of a lamp cup according to the present invention;
fig. 6 is a schematic perspective view illustrating a flow guide cavity of a single structure according to an embodiment of the present invention;
fig. 7 is a cross-sectional view of a baffle cavity of the present invention in a one-piece construction according to an embodiment of the present invention;
FIG. 8 is a schematic view of the air flow in a configuration embodying one aspect of the present invention;
FIG. 9 is a schematic external view of the present invention according to the second embodiment;
FIG. 10 is a schematic view showing the constitution of the present invention according to the second embodiment;
FIG. 11 is an exploded perspective view of the present invention according to a second embodiment;
FIG. 12 is a schematic view of the air flow in a configuration of the present invention in accordance with a second embodiment;
FIG. 13 is an exploded perspective view of a lamp cup according to the third embodiment of the present invention;
fig. 14 is an exploded perspective view of a lamp cup according to the fourth embodiment of the present invention.
Detailed Description
In a first embodiment, referring to fig. 1 to 8, an LED bulb with good heat dissipation of the present invention includes a lamp shade 1, a lamp cup 2, an LED chip 3, a PCB 4 for mounting the LED chip, a driving PCB box 5, a driving PCB 6, a lamp cap molding 7, and a lamp cap 8; the lampshade 1, the lamp cup 2, the lamp holder plastic part 7 and the lamp holder 8 are connected in sequence; the lamp cup 2 is provided with a through cavity 21 from top to bottom; the driving PCB box 5 is arranged between the cavity 21 of the lamp cup and the inner cavity 71 of the lamp cap plastic 7, a preset gap is arranged between the outer wall of the driving PCB box 5 and the inner wall of the cavity 21 of the lamp cup, and the driving PCB 6 is arranged between the inner cavity of the driving PCB box 5 and the inner cavity of the lamp cap plastic 7; the lamp cup 2 comprises an upper part 27 and a lower part 28, a plurality of vertical heat dissipation strips 26 are arranged on the side wall of the cavity of the lower part 28 of the lamp cup 2, heat dissipation seams 22 are formed between the adjacent heat dissipation strips 26, the heat dissipation seams 22 are directly communicated with the cavity 21 of the lamp cup, namely the side wall of the cavity is hollowed out at the heat dissipation seams, so that the air outside the LED bulb is directly communicated with the cavity 21 of the lamp cup 2 through the heat dissipation seams 22; the upper end of the upper part 27 of the lamp cup 2 is provided with a plurality of inclined planes 23 (namely mounting surfaces), a plurality of PCB boards 4 for mounting LED chips are respectively fixed on the corresponding inclined planes 23 at the upper end of the upper part 27 of the lamp cup, and each PCB board 4 for mounting LED chips is at least fixedly connected with one LED chip 3, so that the light angle of the lamp is increased to more than 180 degrees; a diversion cavity 9 which is communicated with the inner cavity of the lampshade is arranged at the top end of the lampshade 1, the bottom end of the diversion cavity 9 is connected to the upper end 24 of the cavity of the lamp cup, so that air outside the LED bulb can flow among the diversion cavity 9, the cavity 21 of the lamp cup and the heat dissipation seam 22 of the lamp cup (as indicated by arrows in figure 8).
Wherein,
a plate-type structure is formed between the inclined plane 23 at the upper end of the upper part 27 of the lamp cup and the inner wall of the cavity 21 of the lamp cup;
the inner wall surface of the cavity 21 of the lamp cup is also provided with a plurality of radiating fins 25 which are vertically arranged; the heat dissipation area is increased;
the radiating fin 25 and the lamp cup 2 are of an integrated structure; the heat sink 25 is formed on the lamp cup 2, and certainly, the heat sink and the lamp cup can be in a split structure, that is, the heat sink is in a single structure (independent part), and then the heat sink is fixed with the inner wall surface of the cavity of the lamp cup;
a shielding plate 91 is arranged at the top end of the flow guide cavity 9, and one or more small air holes 92 are formed in the shielding plate 91;
the guide cavity 9 is of a single-body structure, the top end of the lampshade 1 is provided with a large through hole 11, the periphery of the top end of the guide cavity 9 is matched in the large through hole 11 of the lampshade, and the bottom end of the guide cavity is fixed with the upper end 24 of the cavity of the lamp cup;
the number of the inclined planes 23 at the upper end of the upper part 27 of the lamp cup 2 is six, the number of the PCB boards 4 for installing the LED chips is six, and each PCB board 4 for installing the LED chips is respectively fixed in the inclined plane 23 at the upper end of the corresponding lamp cup;
the PCB 4 for installing the LED chip is fixed on the inclined plane 23 at the upper end of the upper part 27 of the lamp cup in a dispensing fixing mode, a buckling fixing mode or a screw fixing mode;
further, the LED lamp further comprises six cover plates 31, each cover plate 31 covers a corresponding PCB 4 for mounting the LED chips, lenses 32 which can be correspondingly matched with the LED chips 3 on the PCB 4 for mounting the LED chips are arranged on the cover plates 31, namely six LED chips 3 are fixed on the PCB 4 for mounting the LED chips, six lenses 32 are also arranged on the cover plates 31, and the positions of the lenses 32 on the cover plates 31 correspond to the LED chips 3 on the PCB 4 for mounting the LED chips; the provision of the mask 31 and the lens 32 allows further adjustment of the angle of illumination of the lamp, in this case for enlarging the light angle, i.e. up to 270 ° or more, closer to or similar to that of a conventional incandescent bulb; of course, the mask plate 31 and the lens 32 may not be installed;
matched threads are arranged between the lamp holder plastic part 7 and the lamp holder 8, and are riveted and fixed after being connected through the threads;
the bottom end of the driving PCB box 5 is fixed with the lamp cap plastic part 7 by a buckle, and the top end of the driving PCB box 5 is provided with a hole through which a connecting wire between the PCB 4 for installing the LED chip and the driving PCB 6 can pass;
the driving PCB 6 is clamped between the inner cavity of the driving PCB box 5 and the inner cavity of the lamp holder plastic part 7;
the bottom end of the lamp cup 2 is connected with the lamp holder plastic part 7, and the lamp cup 2 is fixed on the driving PCB box 5 through a screw;
the cover plate 31 is clamped on the lamp cup 2;
the bottom end of the lampshade 1 is fixed on the lamp cup 2 in a buckling mode;
the periphery of the top end of the flow guide cavity 9 is attached to the hole edge of the large through hole 11 of the lampshade 1, and the bottom end of the flow guide cavity 9 is provided with a buckle and is clamped at the upper end 24 of the cavity of the lamp cup in a buckling mode;
the present embodiment includes a PCB board for mounting the LED chip, but the LED chip may be directly fixed on the inclined plane 23 at the upper end of the lamp cup without mounting the PCB board for LED chip; of course, the mounting surface may be a plane, a curved surface, or several curved surfaces.
The invention relates to an LED bulb with good heat dissipation, wherein a PCB (printed Circuit Board) 4 for mounting an LED chip is fixed on an inclined plane 23 at the upper end of an upper part 27 of a lamp cup, a plate-type structure formed between the inclined plane 23 at the upper end of the lamp cup and the inner wall of a cavity 21 of the lamp cup plays a role of a heat-conducting base, the interior of the lamp cup 2 is designed into a cavity structure, a plurality of vertical heat-radiating strips 26 are arranged on the side wall of the lower part of the lamp cup, heat-radiating seams 22 are formed between the adjacent heat-radiating strips 26, meanwhile, the back of the heat-conducting base is designed into a hollow-out heat-radiating fin 25, namely, a plurality of vertical heat-radiating fins 25 are arranged on the inner wall surface of the cavity of the lamp cup, and the structure is characterized in that the cavity 21 of the lamp cup, namely the back of the heat-conducting base can be communicated with the outside air through a flow-guiding cavity 9 and the heat-radiating seams 22 of the lamp cup, so that heat emitted by a light source of The heat radiating fins 25 on the inner wall surface of the cavity of the lamp cup radiate out, and because the back of the heat conducting base, namely the cavity of the lamp cup, is communicated with the outside air, thereby quickening the exchange and circulation of cold and hot air, forming a good conduction path of heat conduction and heat dissipation, playing a good and effective role in convection heat dissipation, simultaneously, the heat conducted to the lamp cup radiating fins and dissipated into the lamp cup cavity heats the air flowing through the lamp cup cavity, the heated hot air can flow to a high position in a circulating way, and the air flow rate and the flow rate of the heated hot air flowing into and out of the lamp cup cavity are further accelerated and increased, so that the exchange and circulation of the hot air and the cold air are accelerated, the convection and heat dissipation effects are further improved and increased, therefore, the heat dissipation problem of the LED lamp is solved more effectively, and the service life of the LED lamp is prolonged by the LED lamp with the same specification; or the LED lamps with the same power are designed to be more miniaturized, or the LED lamps with the same size are designed to be more power.
The LED bulb with good heat dissipation of the present invention has the description of the orientation of the top, bottom, top, etc. without limiting the present invention, and only shows the relative position between the components of the LED bulb, the LED bulb can be used with the base in the lower mode as shown in the figure, or with the base in the upper mode, and the structure in this case is turned over by 180 degrees.
In the second embodiment, referring to fig. 9 to 12, the difference between the LED bulb with good heat dissipation of the present invention and the first embodiment is:
the lampshade 1 has different shapes;
the inclined plane 23 at the upper end of the upper part 27 of the lamp cup 2 has a smaller inclination angle; and three inclined planes 23;
the diversion cavity 9 and the lampshade 1 are of an integrated structure, namely, the diversion cavity 9 is integrally manufactured on the lampshade 1;
the PCB 4 for mounting the LED chip is not provided with a cover plate and a lens thereof.
Third embodiment, referring to fig. 13, an LED bulb with good heat dissipation according to the present invention is different from the first embodiment in that:
the upper part 27 and the lower part 28 of the lamp cup are of a split structure, namely the upper part 27 and the lower part 28 are independent parts; the upper part 27 of the lamp cup and the lower part 28 of the lamp cup are fixed by a screw connection. Of course, the upper part 27 of the lamp cup and the lower part 28 of the lamp cup may be fixed together not by screwing, but by gluing or by snap-fitting.
In a fourth embodiment, referring to fig. 14, an LED bulb with good heat dissipation of the present invention is different from the third embodiment in that:
the lateral wall of the cavity of the lower part 28 of the lamp cup is of an annular structure which is sealed along the circumferential direction, the heat dissipation strips 26 are arranged outside the lateral wall of the cavity of the lower part of the lamp cup, heat dissipation holes 29 which can be communicated with the cavity of the lamp cup are arranged at the top ends of the heat dissipation seams 22 formed between the adjacent heat dissipation strips 26 in the lateral wall, and the air outside the LED bulb flows among the diversion cavity 9, the cavity 21 of the lamp cup, the heat dissipation holes 29 of the lamp cup and the heat dissipation seams 22 of the lamp cup. In this structure, the side wall of the cavity is not hollowed out at the heat dissipation slit, and the heat dissipation slit 22 is not directly communicated with the cavity 21 of the lamp cup, so that the heat dissipation hole 29 is disposed at the side wall of the top end of the heat dissipation slit 22, so that the air outside the LED bulb is communicated to the cavity 21 of the lamp cup 2 through the heat dissipation slit 22 and the heat dissipation hole 29.
The above embodiments are only used to further illustrate the LED light bulb with good heat dissipation of the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention fall within the protection scope of the technical solution of the present invention.
Claims (17)
1. An LED bulb with good heat dissipation comprises a lampshade, a lamp cup, an LED chip, a drive PCB box, a drive PCB board, a lamp holder plastic part and a lamp holder; the lampshade, the lamp cup, the lamp holder plastic part and the lamp holder are connected in sequence; the lamp cup is provided with a through cavity up and down; the method is characterized in that: the driving PCB box is arranged between the cavity of the lamp cup and the inner cavity of the lamp cap plastic part, a preset gap is arranged between the outer wall of the driving PCB box and the inner wall of the cavity of the lamp cup, and the driving PCB is arranged between the inner cavity of the driving PCB box and the inner cavity of the lamp cap plastic part; the lamp cup comprises an upper part and a lower part, a plurality of vertical heat dissipation strips are arranged on the side wall of a cavity at the lower part of the lamp cup, heat dissipation seams are formed between adjacent heat dissipation strips, and the heat dissipation seams are directly communicated with the cavity of the lamp cup; the upper end of the upper part of the lamp cup is provided with a mounting surface, and the LED chip is mounted on the mounting surface of the upper end of the upper part of the lamp cup; the top end of the lampshade is provided with a flow guide cavity communicated with the inner cavity of the lampshade, and the bottom end of the flow guide cavity is connected to the upper end of the cavity of the lamp cup, so that air outside the LED bulb can flow among the flow guide cavity, the cavity of the lamp cup and the heat dissipation seam of the lamp cup.
2. The LED bulb with good heat dissipation of claim 1, wherein: further, the LED lamp also comprises a PCB board for mounting the LED chip; the PCB for mounting the LED chip is fixedly connected to a mounting surface at the upper end of the upper part of the lamp cup, and the LED chip is fixed on the PCB for mounting the LED chip.
3. The LED bulb with good heat dissipation according to claim 1 or 2, wherein: the lateral wall of the cavity of the lower part of the lamp cup is of an annular structure which is sealed along the circumferential direction, the heat dissipation strips are arranged outside the lateral wall of the cavity of the lower part of the lamp cup, heat dissipation holes which can be communicated with the cavity of the lamp cup are formed in the lateral wall corresponding to the top ends of the heat dissipation seams formed between the adjacent heat dissipation strips, and air outside the LED bulb flows between the heat dissipation seams of the heat dissipation slits and the heat dissipation cavity of the lamp cup.
4. The LED bulb with good heat dissipation of claim 1, wherein: the mounting surface of the upper end of the upper part of the lamp cup is a plane or a curved surface.
5. The LED bulb with good heat dissipation of claim 1, wherein: the mounting surface of the upper end of the upper part of the lamp cup is a plurality of inclined surfaces or a plurality of curved surfaces.
6. The LED bulb with good heat dissipation according to claim 1 or 2, wherein: and a plate-type structure is formed between the mounting surface at the upper end of the upper part of the lamp cup and the inner wall of the cavity of the lamp cup.
7. The LED bulb with good heat dissipation of claim 6, wherein: the inner wall surface of the cavity of the lamp cup is also provided with a plurality of radiating fins which are vertically arranged.
8. The LED bulb with good heat dissipation of claim 7, wherein: the radiating fin and the lamp cup are of an integrated structure.
9. The LED bulb with good heat dissipation of claim 7, wherein: the radiating fin is of a single-body structure and is fixed with the inner wall surface of the cavity of the lamp cup.
10. The LED bulb with good heat dissipation of claim 1, wherein: the top of water conservancy diversion chamber is equipped with the sunshade, is equipped with one or more ventilative aperture on this sunshade.
11. The LED bulb with good heat dissipation according to claim 1, 2 or 10, wherein: the flow guide cavity and the lampshade are of an integrated structure.
12. The LED bulb with good heat dissipation according to claim 1, 2 or 10, wherein: the flow guide cavity is of a single structure, a large through hole is formed in the top end of the lampshade, the periphery of the top end of the flow guide cavity is matched in the large through hole of the lampshade, and the bottom end of the flow guide cavity is fixed with the upper end of the cavity of the lamp cup.
13. The LED bulb with good heat dissipation of claim 5, wherein: at least two inclined planes or curved surfaces are arranged at the upper end of the upper part of the lamp cup.
14. The LED bulb with good heat dissipation of claim 2, wherein: the PCB for mounting the LED chip is fixed on the mounting surface at the upper end of the upper part of the lamp cup in a dispensing fixing mode, a buckling fixing mode or a screw fixing mode.
15. The LED bulb with good heat dissipation of claim 12, wherein: the LED lamp further comprises a cover plate, the cover plate covers the PCB for mounting the LED chips, and the cover plate is provided with a lens which can be correspondingly matched with the LED chips on the PCB for mounting the LED chips.
16. The LED bulb with good heat dissipation of claim 1, wherein: the upper part and the lower part of the lamp cup are of an integrated structure.
17. The LED bulb with good heat dissipation of claim 1, wherein: the upper part and the lower part of the lamp cup are of split structures; the upper part of the lamp cup and the lower part of the lamp cup are fixed through threaded connection, glue bonding or snap fit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100592787A CN102644866A (en) | 2012-03-07 | 2012-03-07 | LED (Light-Emitting Diode) lamp bulb with good heat radiation |
| PCT/CN2012/083834 WO2013131376A1 (en) | 2012-03-07 | 2012-10-31 | Led lamp |
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| CN2012100592787A CN102644866A (en) | 2012-03-07 | 2012-03-07 | LED (Light-Emitting Diode) lamp bulb with good heat radiation |
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| CN102644866A true CN102644866A (en) | 2012-08-22 |
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| CN2012100592787A Pending CN102644866A (en) | 2012-03-07 | 2012-03-07 | LED (Light-Emitting Diode) lamp bulb with good heat radiation |
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| CN102829356A (en) * | 2012-09-03 | 2012-12-19 | 张伟善 | Light-emitting diode (LED) bulb |
| CN102829357A (en) * | 2012-09-03 | 2012-12-19 | 张伟善 | LED (Light Emitting Diode) bulb |
| CN102865477A (en) * | 2012-09-05 | 2013-01-09 | 深圳市众明半导体照明有限公司 | Illuminating device |
| WO2013131376A1 (en) * | 2012-03-07 | 2013-09-12 | 厦门天力源光电科技有限公司 | Led lamp |
| WO2014127594A1 (en) * | 2013-01-29 | 2014-08-28 | 世光国际贸易有限公司 | Light-emitting device having light-emitting diode |
| CN104075157A (en) * | 2013-03-29 | 2014-10-01 | 优利德电球股份有限公司 | Air Cooled LED Lamps |
| CN105324603A (en) * | 2014-06-02 | 2016-02-10 | 冰管灯具株式会社 | LED lighting |
| US9303821B2 (en) | 2013-03-29 | 2016-04-05 | Uniled Lighting Tw., Inc. | Air-cooled LED lamp bulb |
| CN107893916A (en) * | 2017-12-15 | 2018-04-10 | 明朔(北京)电子科技有限公司 | LED China lamp lighting apparatus, lighting apparatus and lens |
| CN109185726A (en) * | 2018-10-17 | 2019-01-11 | 杭州华普永明光电股份有限公司 | A kind of LED light source |
| CN109578822A (en) * | 2017-09-26 | 2019-04-05 | 江西鸿利光电有限公司 | A kind of LED filament lamp of high thermal conductivity |
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| WO2013131376A1 (en) * | 2012-03-07 | 2013-09-12 | 厦门天力源光电科技有限公司 | Led lamp |
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| CN102829357A (en) * | 2012-09-03 | 2012-12-19 | 张伟善 | LED (Light Emitting Diode) bulb |
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| US9303821B2 (en) | 2013-03-29 | 2016-04-05 | Uniled Lighting Tw., Inc. | Air-cooled LED lamp bulb |
| CN104075157A (en) * | 2013-03-29 | 2014-10-01 | 优利德电球股份有限公司 | Air Cooled LED Lamps |
| CN105324603A (en) * | 2014-06-02 | 2016-02-10 | 冰管灯具株式会社 | LED lighting |
| CN109578822A (en) * | 2017-09-26 | 2019-04-05 | 江西鸿利光电有限公司 | A kind of LED filament lamp of high thermal conductivity |
| CN109578822B (en) * | 2017-09-26 | 2025-01-24 | 江西鸿利光电有限公司 | A LED filament lamp with high thermal conductivity |
| CN107893916A (en) * | 2017-12-15 | 2018-04-10 | 明朔(北京)电子科技有限公司 | LED China lamp lighting apparatus, lighting apparatus and lens |
| CN109185726A (en) * | 2018-10-17 | 2019-01-11 | 杭州华普永明光电股份有限公司 | A kind of LED light source |
| CN109185726B (en) * | 2018-10-17 | 2024-05-31 | 杭州华普永明光电股份有限公司 | LED light source |
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Application publication date: 20120822 |