WO2014023188A1 - Led lamp bulb - Google Patents

Led lamp bulb Download PDF

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Publication number
WO2014023188A1
WO2014023188A1 PCT/CN2013/080713 CN2013080713W WO2014023188A1 WO 2014023188 A1 WO2014023188 A1 WO 2014023188A1 CN 2013080713 W CN2013080713 W CN 2013080713W WO 2014023188 A1 WO2014023188 A1 WO 2014023188A1
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WO
WIPO (PCT)
Prior art keywords
heat
conducting column
heat conducting
led
body
Prior art date
Application number
PCT/CN2013/080713
Other languages
French (fr)
Chinese (zh)
Inventor
张夙敏
魏永纲
常文涛
Original Assignee
深圳市中电照明股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201210284355.9 priority Critical
Priority to CN201210276961.6A priority patent/CN102798013B/en
Priority to CN2012102843559A priority patent/CN102767728A/en
Priority to CN201210276961.6 priority
Application filed by 深圳市中电照明股份有限公司 filed Critical 深圳市中电照明股份有限公司
Publication of WO2014023188A1 publication Critical patent/WO2014023188A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/23Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • F21V3/02Globes; Bowls; Cover glasses characterised by the shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00Light sources with three-dimensionally disposed light-generating elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

An LED lamp bulb comprises a lamp head (1), a light transmission cover (2), a ventilation body (3), a drive circuit (4), and a heat-conducting column (5) with hollow cavity. The ventilation body (3) is respectively connected with the lamp head (1) and the light transmission cover (2) the top of which is provided with a vent hole (21), and the outer wall of the heat conducting pillar (5) is provided with a plurality of LEDs (6). The ventilation body (3) is provided with a plurality of ventilating slots (31) or ventilating holes (32), and the ventilating slots (31) or ventilating holes (32) are connected with the hollow cavity of the guide pillar (5) and the vent hole (21) in turn to form a convective radiating air channel. The heat conducting pillar (5) transmits the heat of the LED (6), and farther to the outside through the convective radiating air channel.

Description

 And an LED bulb <

At present, in the field of lighting, LED has been widely used in lighting as an illumination because of its advantages of energy saving, high luminous efficiency, long life, and fast startup. Because LED illumination is directional, it does not emit 360° like CFL and incandescent lamps. Therefore, when LED is used as a light source to replace traditional incandescent lamps or CFL sources, its application effect is limited. The existing LED bulbs generally use an exposed heat sink for heat dissipation. In order to meet the requirements of heat dissipation, the heat sink is often large, which affects the light-emitting area. Therefore, in the case of a certain size of the LED bulb, the heat-dissipating area and the light-emitting area are mutually Contradictory, to ensure that the heat dissipation area must sacrifice the light-emitting area, the current common practice is to make the light-emitting surface into a hemisphere. Even so, the power of the LED bulb can usually not exceed 8W, otherwise it is difficult to meet the heat-dissipation requirements. Or, there is a scheme for increasing the size of the LED bulb to meet the heat dissipation requirement, but the bulb having a larger volume is not only inconsistent with the conventional incandescent bulb, but also affects the installation and use.

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an LED bulb with a small heat dissipation, a large light-emitting area, and a good heat dissipation effect. The first technical solution adopted by the present invention is: the present invention includes a lamp cap, a translucent cover, a ventilating body, a driving circuit, and the ventilating body respectively connected to the lamp cap and the translucent cover, the convection heat dissipation type The LED bulb further includes a heat conducting column with a hollow inner cavity, and the outer wall of the heat conducting column is provided with thousands of The ventilating body is provided with a plurality of ventilation slots or a plurality of ventilation holes, and the ventilation slots or the ventilation holes are sequentially connected with the hollow inner cavity of the heat conducting column. The vents are connected to form a convection heat dissipation air passage, and the heat of the LED is conducted through the heat conduction column, and the heat is radiated to the outside through the convection heat dissipation air passage.

 The heat dissipation column has a plurality of heat dissipation stretch strips on the sidewall of the hollow inner cavity.

 The convection heat sink LED bulb further includes an insulating spacer, the drive circuit being located within the insulating spacer.

 The venting body is an insulating heat sink, and the insulating heat sink is made of a heat conductive ceramic.

 Alternatively, the venting body is an insulating member, and the insulating member is made of plastic.

 Or the ventilating body is a metal heat sink, and the convection heat-dissipating LED bulb further includes an insulating connecting member, wherein the metal heat sink is connected to the lamp cap through the insulating connecting member, and the driving circuit is surrounded by The ventilation body is surrounded.

 The lower portion of the heat conducting column is axially positioned by the protrusion of the lower portion of the light transmissive cover, and the upper portion of the heat conducting column is fixed by threading with the thread of the upper portion of the transparent cover. The lower portion of the venting body is connected to the base by threads.

 Or the lower portion of the heat conducting column is coupled to the venting body and axially positioned by the venting body

 The translucent cover is spherical or pear-shaped or candle-shaped or shaped.

The type of the lamp cap is E27 or E26 or E14 or E12 or G24 or G23 or B22 or GUlOo. The second technical solution adopted by the present invention is: the present invention includes a lamp cap, a translucent cover, a ventilating body, a driving circuit, The ventilating body is respectively connected to the lamp cap and the transparent cover. The high-efficiency heat-dissipating LED bulb further comprises a heat-conducting column with a hollow inner cavity and a baffle, and the outer wall of the heat-conducting column is provided with a plurality of LEDs. The top of the transparent cover is provided with a venting opening, and the venting body is provided with a plurality of ventilation slots, and the guiding hood is respectively connected to the heat conducting column and the venting body, and the venting groove is sequentially connected The flow hood, the hollow inner cavity of the heat conducting column and the vent are connected to form a wind tunnel type heat dissipation wind The heat of the LED is conducted through the heat conducting column, and the heat is radiated to the outside through the wind tunnel type heat dissipating air passage.

 The high-efficiency heat-dissipating LED bulb further includes a heat-dissipating fan, and the heat-dissipating fan is disposed on the side wall of the hollow inner cavity of the heat-conducting column of the wind deflector.

 The venting body is made of heat conductive ceramic or plastic.

 The heat conducting column is connected to the light transmissive cover and the shroud by threads.

 The vent is in a spiral shape.

 The translucent cover has a spherical shape or a pear shape or a candle shape.

The lamp head is of the type E27 or E26 or E14 or E12 or G24 or G23 or B22 or GUK). The invention has the following advantages: Since the first technical solution of the present invention comprises a heat conducting column with a hollow inner cavity, the outer wall of the heat conducting column is provided with a plurality of LEDs, and the top of the light transmissive cover is provided with a vent. The ventilation body is provided with a plurality of ventilation slots or a plurality of ventilation holes, and the ventilation slots or the ventilation holes are sequentially connected with the hollow inner cavity of the heat conducting column and the ventilation port to form a convection heat dissipation air channel. The heat of the LED is conducted through the heat conducting column, and the heat is radiated to the outside through the convection heat dissipation air duct; the scheme is similar to the principle of the chimney, and the air pressure difference between the lower portion and the top portion of the heat conducting column is used inside the LED bulb A convective wind is formed in the hollow inner cavity of the heat conducting column, and heat of the LED is conducted through the heat conducting column, and the heat is radiated to the outside through the convection heat dissipation air channel, or a part of heat is dissipated through the heat dissipating component. Therefore, at the same power, the present invention can reduce the size of the heat sink than the existing LED light bulb, thereby increasing the area of the light emitting surface; therefore, the heat sink of the solution is small, The light-emitting area is large, and the heat dissipation effect is good. The second technical solution of the present invention includes a heat-conducting column with a hollow inner cavity and a baffle. The outer wall of the heat-conducting column is provided with a plurality of LEDs. a vent is provided at the top, and the ventilating body is provided with a plurality of ventilation slots, the shroud is respectively connected to the heat conducting column and the venting body, and the venting groove is sequentially connected with the shroud and the The hollow inner cavity of the heat conducting column is connected to the vent Forming a wind tunnel type heat dissipating air passage, the heat of the LED is conducted through the heat conducting column, and the heat is radiated to the outside through the wind tunnel type heat dissipating air passage; the scheme is similar to the principle of the wind tunnel, and the heat conduction is a difference in air pressure between the lower portion and the top of the column, forming an ascending airflow in the hollow inner cavity of the heat conducting column inside the LED bulb, the heat of the LED being conducted through the heat conducting column, and passing through the wind tunnel type heat dissipating air passage The heat is dissipated to the outside world. Compared with the existing LED bulb, the invention can completely integrate the heat sink, thereby increasing the area of the light-emitting surface, ensuring the same shape as the traditional incandescent bulb, and avoiding the abrupt shape; therefore, the shape and the conventional shape of the scheme are The incandescent bulbs are consistent, the heat sink is small, the light-emitting area is large, and the heat dissipation effect is good.

1 is a schematic view showing the overall structure of a first embodiment of the present invention;

 2 is a schematic exploded view of the first embodiment of the present invention;

 Figure 3 is a schematic cross-sectional view showing the first embodiment of the present invention;

 4 is a schematic front view of a second embodiment of the present invention;

 Figure 5 is a schematic cross-sectional view of the A-A shown in Figure 4;

 Figure 6 is a schematic cross-sectional view of the B-B shown in Figure 4;

 Figure Ί is a schematic structural view of a light transmissive cover according to Embodiment 3 of the present invention;

 8 is a schematic structural view of a light transmissive cover according to Embodiment 4 of the present invention;

 Figure 9 is a schematic cross-sectional view showing a fifth embodiment of the present invention;

 Figure 10 is a schematic overall structural view of Embodiment 6 of the present invention;

 Figure 11 is a schematic exploded view of the sixth embodiment of the present invention;

Figure 12 is a schematic cross-sectional view showing the sixth embodiment of the present invention. Embodiment 1 As shown in FIG. 1 to FIG. 3, the LED bulb of this embodiment includes a lamp cap 1, a transparent cover 2, a ventilating body 3, a driving circuit 4, a heat conducting column 5 with a hollow inner cavity, and an insulating spacer 8 The ventilating body 3 is respectively connected to the lamp cap 1 and the translucent cover 2, and the outer wall of the heat conducting column 5 is provided with a plurality of LEDs 6, and the top of the translucent cover 2 is provided with a vent 21 The ventilating body 3 is provided with a plurality of ventilation slots 31, and the ventilation slots 3 are sequentially connected with the hollow inner cavity of the heat conducting column 5 and the venting opening 21 to form a convection heat dissipation air duct, and the LED 6 The heat is conducted through the heat conducting column 5, and the heat is radiated to the outside through the convection heat dissipating duct. The venting body 3 is an insulating heat dissipating member, and the insulating heat dissipating member is made of a heat conducting ceramic, and functions as an insulating member. Further, the heat dissipation is further increased, and the heat dissipation effect is better. The lower portion of the heat conducting column 5 is axially positioned by the protrusion 51 and the boss 21 of the lower portion of the transparent cover 2, and the upper portion of the heat conducting column 5 passes. Threading is fixed to the thread of the upper portion of the translucent cover 2, the ventilation The lower portion of the body 3 is connected to the base 1 by a thread, the top of the insulating spacer 8 is fixedly connected to the bottom of the ventilating body 3, and the driving circuit 4 is located in the insulating spacer 8, The translucent cover 2 has a spherical shape, and the type of the lamp cap is E27. Embodiment 2: As shown in FIG. 4 to FIG. 6 , the LED bulb of this embodiment includes a lamp cap 1 , a transparent cover 2 , a ventilating body 3 , a driving circuit 4 , a heat conducting column 5 with a hollow inner cavity, and the ventilating body 3 is respectively connected to the lamp cap 1 and the translucent cover 2, and the outer wall of the heat conducting column 5 is provided with a plurality of LEDs 6, and the top of the translucent cover 2 is provided with a venting opening 21, the venting body The venting hole 32 is provided with a plurality of venting holes 32. The venting holes 32 are sequentially connected with the hollow inner cavity of the heat conducting column 5 and the venting opening 21 to form a convection heat dissipation air passage. The heat of the LED 6 passes through the heat conduction. The column 5 is conducted, and the heat is radiated to the outside through the convection heat dissipation air channel. The heat dissipation column 5 is provided with a plurality of heat dissipation stretch strips 50 on the side wall of the hollow cavity to increase the heat dissipation area. The insulating member is made of plastic, and the lower part of the heat conducting column 5 is connected to the venting body 3 and is shafted by the venting body 3 Positioning, the upper portion of the heat conducting column 5 is fixed by threading with the thread of the upper portion of the transparent cover 2, and the lower portion of the venting body 3 is connected with the lamp head through a thread, and the driving circuit 4 The periphery of the ventilating body 3 is surrounded by the ventilating body 3 for insulation protection. The exposed light-transmissive cover 2 has a shape similar to a spindle shape with a small intermediate portion at both ends, and the type of the lamp cap is E26, and the ventilating body 3 is The exposed portion has a small area, which is much smaller than the outer surface area of the transparent cover 2. Therefore, the light-emitting area of the embodiment is substantially the same as that of the conventional incandescent light bulb and the energy-saving lamp, and the light-emitting effect is good.

As shown in FIG. 7 , the LED bulb of this embodiment is different from the second embodiment in the shape of the translucent cover 2 . In the embodiment, the height of the translucent cover 2 is slightly smaller, and the bottom opening is smaller. Bigger. The remaining features of this embodiment are the same as those of the second embodiment. Embodiment 4: As shown in FIG. 8, the LED bulb of this embodiment is different from the second embodiment in the shape of the translucent cover 2. In this embodiment, the upper portion of the translucent cover 2 is a cylinder. The shape and the lower part are in the shape of a vertebral column. The remaining features of this embodiment are the same as those of the second embodiment. Embodiment 5: As shown in FIG. 9, the LED light bulb of this embodiment includes a lamp cap 1, a light transmissive cover 2, a ventilation body 3, a driving circuit 4, a heat conducting column 5 having a hollow inner cavity, and an insulating connecting member 9, The ventilating body 3 is respectively connected to the lamp cap 1 and the transparent cover 2, and the outer wall of the heat conducting column 5 is provided with a plurality of LEDs 6, and the top of the translucent cover 2 is provided with a venting opening 21, The ventilating body 3 is provided with a plurality of venting holes 32, and the venting holes 32 are sequentially connected with the hollow inner cavity of the heat conducting column 5 and the venting opening 21 to form a convection heat dissipation air passage, and the heat of the LED 6 passes through The heat conducting column 5 is conducted, and the heat is radiated to the outside through the convection heat dissipating air passage, the venting body 3 is a metal heat dissipating member, and the venting body 3 is made of aluminum material, and the metal heat dissipating member passes through the insulating material. a connecting member 9 is connected to the base 1 The driving circuit 4 is located in the insulating connecting member 9, and the lower portion of the heat conducting column 5 is axially positioned by the protrusion 51 corresponding to the boss 21 of the lower portion of the transparent cover 2, and the heat conducting column 5 is disposed. The upper part is fixed by threading with the thread of the upper part of the transparent cover 2, the lower part of the ventilation body 3 is connected with the base 1 by threads, the top of the insulating joint 9 and the ventilation body The bottom of the 3 is fixedly connected, and the insulating connecting member 9 is made of plastic, which serves as an insulating member, electrically isolates the metal heat sink from the lamp cap 1, and additionally increases heat dissipation, and has better heat dissipation effect. The translucent cover 2 has a spherical shape, and the type of the lamp cap is E27. The first embodiment to the fifth embodiment of the present invention are similar to the principle of a chimney, and a convection wind is formed in a hollow inner cavity of the heat conducting column 5 inside the LED bulb by using a difference in air pressure between the lower portion and the top portion of the heat conducting column 5, the LED The heat of 6 is conducted through the heat conducting column 5, and the heat is radiated to the outside through the convection heat dissipating air passage, or a part of the heat can be dissipated through the heat dissipating member, so that the present invention is more than the existing one under the same power: The LED bulb can reduce the size of the heat sink and increase the area of the light emitting surface. Therefore, the heat sink of the invention has a small heat sink, a large light emitting area, and a good heat dissipation effect. Embodiment 6: As shown in FIG. 10 to FIG. 12, the bulb of the embodiment includes a lamp cap 1, a light transmissive cover 2, a ventilating body 3, a driving circuit 4, a heat conducting column 5 having a hollow inner cavity, a flow guiding cover 7, a heat dissipating fan 8 is respectively connected to the lamp cap 1 and the translucent cover 2, and the outer wall of the heat conducting column 5 is provided with a plurality of LEDs 6, and the top of the transmissive cover 2 is provided a venting port 21, the venting opening 21 is in a spiral shape, and the ventilating body 3 is provided with a plurality of ventilation slots 31, and the air guiding cover 7 is respectively connected to the heat conducting column 5 and the venting body 3, The heat conducting column 5 is connected to the light transmissive cover 2 and the flow guiding cover 7 by screws. The ventilation groove 31 is sequentially connected to the air guiding cover 7 and the hollow inner cavity of the heat conducting column 5 and The vents 21 are connected to each other to form a wind tunnel type heat dissipating air passage. The heat of the LEDs 6 is conducted through the heat conducting columns 5, and the heat is radiated to the outside through the wind tunnel type heat dissipating air passages. Located in the shroud 7, it can be forced to convection by a fan to enhance the heat dissipation effect, especially suitable for high-power LED bulbs. In smaller power LED bulbs, the cooling fan 8 may be not provided with a plurality of radiating fins 52 on the sidewalls of the hollow interior of the heat conducting column 5, in order to increase cooling power Π The venting body 3 is made of plastic, and is of course made of other insulating materials such as heat-conductive ceramics. The transparent cover 2 has a spherical shape, and the type of the lamp cap is E27. Embodiment 6 of the present invention is similar to the principle of a wind tunnel, and an airflow difference is formed in a hollow inner cavity of the heat conducting column 5 inside the LED bulb by using a difference in air pressure between the lower portion and the top portion of the heat conducting column 5, the LED 6 Heat is conducted through the heat conducting column 5, and heat is radiated to the outside through the wind tunnel type heat dissipating air passage. Compared with the existing LED light bulb, the present invention can completely integrate the heat sink body, thereby increasing the area of the light emitting surface and ensuring the shape. The same as the traditional incandescent light bulb, the shape of the abrupt is avoided, so the appearance of the invention is consistent with the traditional incandescent bulb, the illumination area is large, and the heat dissipation effect is good. The above embodiments are intended to be illustrative only, and the scope of the present invention and the equivalents of the invention are intended to be included within the scope of the appended claims. For example, the transparent cover 2 may have other shapes such as a pear shape or a candle shape, and the lamp head may be of other types such as E14 or E12 or G24 or G23 or B22 or GU10. Further, in the present invention, the flow direction of the convection wind may flow in the direction as shown in the drawing or may flow in the reverse direction, and the actual situation is determined according to the specific installation direction of the bulb. The invention can be widely applied to the field of LED bulbs.

Claims

An LED bulb comprising a lamp cap (1), a translucent cover (2), a ventilating body (3), a driving circuit (4), the venting body (3) and the lamp cap (1) and the transparent The photomask (2) is connected, characterized in that: the LED bulb further comprises a heat conducting column (5) with a hollow inner cavity, the heat conducting column
The outer wall of the (5) is provided with a plurality of LEDs (6), the top of the transparent cover (2) is provided with a vent (21), and the ventilation body (3) is provided with a plurality of ventilation slots (31) Or a plurality of ventilation holes (32), wherein the ventilation slots (31) or the ventilation holes (32) are sequentially connected with the hollow inner cavity of the heat conducting column (5) and the air vent (21) to form a convection heat dissipation In the air duct, heat of the LED (6) is conducted through the heat conducting column (5), and heat is radiated to the outside through the convection heat dissipation air passage. The LED light bulb according to claim 1, wherein the LED bulb further comprises an insulating spacer (8), and the driving circuit (4) is located in the insulating spacer (8). The LED light bulb according to claim 1, wherein: the ventilation body (3) is a metal heat sink, and the LED light bulb further comprises an insulating connecting member (9), wherein the metal heat sink is connected through the insulation The member (9) is connected to the base Π), and the periphery of the drive circuit (4) is surrounded by the ventilating body (3). The LED light bulb according to claim 1, wherein: the lower portion of the heat conducting column (5) is adapted to the boss (21) of the lower portion of the light transmissive cover (2) by a tenon (51). In the axial position of the row, the upper part of the heat conducting column (5) is fixed by threading with the thread of the upper part of the transparent cover (2), the lower part of the ventilation body (3) and the lamp cap (1) ) Connected by threads. The LED light bulb according to claim 1, characterized in that: the lower part of the heat conducting column (5) is adapted to be connected to the ventilation body (3) and is axially positioned by the ventilation body (3). An LED bulb comprising a lamp cap (1), a translucent cover (2), a venting body (3), a driving circuit (4), the venting body (3) and the lamp cap (1) and the transparent The photomask (2) is connected, and the LED bulb further comprises a heat conducting column (5) with a hollow inner cavity and a baffle (7), and the outer wall of the heat conducting column (5) is provided with a plurality of LED (6), the top of the transparent cover (2) is provided with a vent (21), and the ventilation body (3) is provided with a plurality of ventilation slots (31), a flow guiding cover (7) is respectively connected to the heat conducting column (5) and the ventilation body (3), and the ventilation groove (31) is sequentially connected to the flow guiding cover (7) and the heat conducting column (5) The hollow inner cavity and the vent (21) are connected to form a wind tunnel type heat dissipating air passage, and the heat of the LED (6) is conducted through the heat conducting column (5), and the wind tunnel type heat dissipating wind The road distributes heat to the outside world. The LED light bulb according to claim 6, wherein the LED light bulb further comprises a heat dissipation fan (8), and the heat dissipation fan (8) is located in the flow guide cover (7). The LED light bulb according to claim 6, wherein: the heat conducting column (5)
Figure imgf000012_0001
The transmissive cover (2) and the shroud (7) are all connected by threads.
Swirl. The LED light bulb according to claim 1 or 6, characterized in that: the heat-guiding column (5) has a plurality of heat-dissipating fins (50) or heat-dissipating fins (52) on the side wall of the hollow inner cavity. The LED light bulb according to claim 1 or 6, wherein the venting body (3) is an insulating heat sink, and the insulating heat sink is made of a heat conductive ceramic. The LED light bulb according to claim 1 or 6, wherein the venting body (3) is an insulating member, and the insulating member is made of plastic. The LED light bulb according to claim 1 or 6, wherein the light transmissive cover (2) has a spherical shape or a pear shape or a candle shape or an irregular shape. The LED light bulb according to claim 1 or 6, wherein the lamp head (1) is of the type E27 or E26 or E14 or E12 or G24 or G23 or B22 or GU10.
PCT/CN2013/080713 2012-08-06 2013-08-02 Led lamp bulb WO2014023188A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201210284355.9 2012-08-06
CN201210276961.6A CN102798013B (en) 2012-08-06 2012-08-06 Convection radiating type LED (light-emitting diode) bulb
CN2012102843559A CN102767728A (en) 2012-08-06 2012-08-06 Efficient radiating light emitting diode (LED) bulb
CN201210276961.6 2012-08-06

Publications (1)

Publication Number Publication Date
WO2014023188A1 true WO2014023188A1 (en) 2014-02-13

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PCT/CN2013/080713 WO2014023188A1 (en) 2012-08-06 2013-08-02 Led lamp bulb

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Country Link
WO (1) WO2014023188A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN108361562A (en) * 2018-02-13 2018-08-03 东莞市闻誉实业有限公司 Lamps and lanterns

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US20090296402A1 (en) * 2008-06-03 2009-12-03 Li-Hong Technological Co., Ltd. Led lamp bulb structure
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CN102767728A (en) * 2012-08-06 2012-11-07 深圳市中电照明股份有限公司 Efficient radiating light emitting diode (LED) bulb
CN102798013A (en) * 2012-08-06 2012-11-28 深圳市中电照明股份有限公司 Convection radiating type LED (light-emitting diode) bulb
CN202812877U (en) * 2012-08-06 2013-03-20 深圳市中电照明股份有限公司 Efficient heat-dissipation light-emitting diode (LED) lamp bulb

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Publication number Priority date Publication date Assignee Title
US20090027889A1 (en) * 2007-07-23 2009-01-29 Shung-Wen Kang LED lamp instantly dissipating heat as effected by multiple-layer substrates
US20090296402A1 (en) * 2008-06-03 2009-12-03 Li-Hong Technological Co., Ltd. Led lamp bulb structure
CN101825231A (en) * 2009-03-06 2010-09-08 先进开发光电股份有限公司 Light-emitting diode bulb
CN201496804U (en) * 2009-08-28 2010-06-02 黄桐 Highly-effective radiating LED bulb
CN101936481A (en) * 2010-10-09 2011-01-05 上海嘉塘电子有限公司 High-power LED lighting lamp with self-heat dissipation function
CN102767728A (en) * 2012-08-06 2012-11-07 深圳市中电照明股份有限公司 Efficient radiating light emitting diode (LED) bulb
CN102798013A (en) * 2012-08-06 2012-11-28 深圳市中电照明股份有限公司 Convection radiating type LED (light-emitting diode) bulb
CN202812877U (en) * 2012-08-06 2013-03-20 深圳市中电照明股份有限公司 Efficient heat-dissipation light-emitting diode (LED) lamp bulb

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108361562A (en) * 2018-02-13 2018-08-03 东莞市闻誉实业有限公司 Lamps and lanterns
CN108361562B (en) * 2018-02-13 2020-02-07 东莞市闻誉实业有限公司 Lamp fitting

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