CN106352258B - High heat dissipation formula LED maize lamp - Google Patents
High heat dissipation formula LED maize lamp Download PDFInfo
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- CN106352258B CN106352258B CN201611058830.5A CN201611058830A CN106352258B CN 106352258 B CN106352258 B CN 106352258B CN 201611058830 A CN201611058830 A CN 201611058830A CN 106352258 B CN106352258 B CN 106352258B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
Abstract
The invention discloses a high-heat-dissipation LED corn lamp, which comprises a lamp cap, a radiator and an LED light source arranged on the radiator, and is characterized in that: the radiator comprises a plurality of independent radiating strips and fixing seats for fixing the radiating strips, wherein the fixing seats comprise top fixing seats positioned at the tops of the radiating strips and bottom fixing seats positioned at the bottoms of the radiating strips; a clamping groove for fixing the LED lamp panel is arranged on the heat dissipation strip, and the LED lamp panel is arranged in the clamping groove; all the radiating strips are distributed around an axis, a ventilation gap is arranged between every two adjacent radiating strips, a hollow ventilation channel is arranged in the middle of the radiator, and the ventilation channel is communicated with the ventilation gap. Preferably, the heat dissipation strip is a strip-shaped hollow enclosing body; the part of the heat dissipation strip, which is positioned on the back of the clamping groove, is provided with at least one notch penetrating through the heat dissipation strip; an annular ventilation opening is formed between the lamp cap and the fixed seat at the top of the radiator; and a top annular LED light source component is arranged around the edge of the top surface of the radiator. The LED lamp has the advantages of good heat dissipation performance and large light emitting angle.
Description
Technical Field
The invention relates to the field of illumination, in particular to an LED corn lamp with high heat dissipation performance and a large light-emitting angle.
Background
The LED corn lamp belongs to a light source type, emits light in a 360-degree surrounding mode, is shaped like a corn cob in lamp bead distribution, and is called as the LED corn lamp. Because the LED corn lamp has high brightness, large light-emitting angle and good heat dissipation effect, the LED corn lamp is more and more widely applied to various illumination occasions.
One basic structure of the existing LED corn lamp can refer to patent with publication number CN205579217U, and its structure is: the LED lamp comprises a lamp cap, a radiator connected with the lamp cap and an LED light source arranged on the radiator; the structure of the radiator is as follows: including hollow cylinder body and by the outside integrative heating panel that extends a plurality of circumference evenly distributed of body, evenly be equipped with the vertical bar LED lamp plate on every heating panel, evenly establish the lamp shade on the vertical bar LED lamp plate.
The radiator can adopt an extrusion forming process, a longer metal section is integrally extruded, and then the shorter lamp radiator is formed by cutting according to the length requirement, so that the production is convenient, and the cost is lower.
However, because the middle of the radiator is a closed hollow cylinder, air can only flow into the gap between two adjacent heat dissipation plates and cannot pass through the hollow cylinder, so that air convection cannot be realized; the radiator can realize air reflection on the windy side to realize heat flow, and cannot realize air flow on the leeward side, so that the heat dissipation of the leeward side is difficult to realize.
The defects of the radiator limit the increase of the power of the LED corn lamp and are difficult to pass the relevant safety certification. That is, when the power of the LED corn light is increased, the heat cannot be dissipated quickly, so that the LED quickly generates light attenuation, and the service life of the LED is seriously affected.
On the other hand, the existing LED corn lamp is generally only provided with LED light sources at the circumferential surface and the bottom of the lamp body, and the top of the lamp body is not provided with the LED light sources, so people always like to pursue 360-degree light emission in the true sense like the traditional tungsten filament bulb, and really need 360-degree light emission in some occasions, for example, when the LED corn lamp is installed upside down.
On the other hand, the mode of installing the straight bar-shaped LED lamp panel on every heating panel of the existing LED corn lamp generally is that a clamping groove is arranged on the heating panel, and the straight bar-shaped LED lamp panel is inserted into the clamping groove from the end part of the clamping groove. At the moment, the height of the clamping groove is generally set to be slightly larger than the thickness of a circuit board of the straight-bar-shaped LED lamp panel, otherwise, the straight-bar-shaped LED lamp panel is difficult to insert into the clamping groove; however, the height of the clamping groove is larger than the thickness of the circuit board, so that the circuit board cannot be tightly attached to the heat dissipation plate, and heat conduction of the straight bar-shaped LED lamp panel is affected. That is, the arrangement of the heat dissipation plate of the existing LED corn lamp cannot meet the requirements of convenient installation and good heat conduction at the same time.
Therefore, there is a need for further improvement of the structure of the existing LED corn lamp.
Disclosure of Invention
The invention aims to provide an LED corn lamp with high heat dissipation performance and a large light-emitting angle.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a high heat dissipation formula LED maize lamp, includes lamp holder, radiator, sets up the LED light source on the radiator, its characterized in that: the radiator comprises a plurality of independent radiating strips and fixing seats for fixing the radiating strips, wherein the fixing seats comprise top fixing seats positioned at the tops of the radiating strips and bottom fixing seats positioned at the bottoms of the radiating strips; a clamping groove for fixing the LED lamp panel is arranged on the heat dissipation strip, and the LED lamp panel is arranged in the clamping groove; all the radiating strips are distributed around an axis, a ventilation gap is arranged between every two adjacent radiating strips, a hollow ventilation channel is arranged in the middle of the radiator, and the ventilation channel is communicated with the ventilation gap.
Preferably, the heat dissipation strip is a strip-shaped hollow enclosing body. The hollow enclosure body is arranged to generate a chimney effect, so that the air can flow quickly in the vertical direction, and the heat dissipation is accelerated.
Preferably, the heat dissipation strip is a strip-shaped hollow three-side surrounding body or a hollow surrounding body with an isosceles trapezoid cross section, and at least one surface of the heat dissipation strip extends with a heat dissipation fin which is integrated with the heat dissipation strip. The radiating strips are arranged into a strip-shaped hollow body with three surrounding surfaces, and a plurality of radiating strips are uniformly distributed along the axis, so that a cylindrical radiator is conveniently formed.
Furthermore, the part of the heat dissipation strip, which is positioned on the back of the clamping groove, is provided with at least one notch penetrating through the heat dissipation strip, and the notch is communicated with the ventilation gap. The arrangement increases the ventilation channel, can increase the ventilation quantity passing through the radiator in the transverse direction, and accelerates the heat dissipation.
Preferably, each heat dissipation strip is provided with notches with the same number and positions, each notch is a notch transversely penetrating through the heat dissipation strip, and the notches are communicated with the ventilation gaps and the ventilation channels, so that the circulation of air can be improved, and the heat dissipation is improved; the notches at the corresponding positions of all the radiating strips are positioned on the same plane to form a straight line channel penetrating through the radiator, so that the air flow is facilitated. If no notch is positioned on the same plane, wind which is blown from certain angles on the peripheral surface of the radiator can be blocked by the radiating strips and cannot penetrate through the radiator directly, so that the air circulation speed is reduced; after the notches are arranged on the same plane, a straight line channel penetrating through the radiator can be formed, wind blown from the angles can linearly penetrate through the radiator, the air flow is accelerated, and the radiating speed is improved.
Preferably, the number of the heat dissipation strips is even, and all the heat dissipation strips are uniformly distributed in a circumferential array. The heat dissipation strips are arranged into even numbers and are uniformly distributed on the circumference, so that two opposite ventilation gaps can be positioned on the same plane, a linear channel is formed, and air circulation is accelerated.
Furthermore, an annular ventilation opening is formed between the lamp cap and the fixed seat at the top of the radiator, and the annular ventilation opening is communicated with a hollow ventilation channel of the radiator. The annular ventilation opening is arranged, air can flow into or out of the radiator from any direction of 360 degrees, and the air inflow angle and the air flow are enlarged.
Furthermore, a lamp cap cover is arranged at the bottom of the lamp cap, the top of the lamp cap cover is connected with the lamp cap, and the bottom of the lamp cap cover is connected with the radiator; the bottom of the lamp cap is gradually reduced towards the radiator; the top fixing seat and the bottom fixing seat of the radiator are both provided with vent holes, and the vent holes are communicated with a hollow ventilation channel of the radiator; an annular ventilation opening is formed between the lamp cap cover and the fixed seat at the top of the radiator. The lamp holder lid bottom is to the convergent of radiator direction, forms an inverted cone or similar inclined plane, both can and form annular vent between the fixing base of radiator top, can make the wind that the side flow comes again via the inverted cone reflection, towards the inside inflow of radiator, has improved the radiating effect. The middle part of the lamp cap cover is downwards provided with a plurality of concave column-shaped screw holes, so that the connection between the lamp cap cover and the radiator can be realized, and the area of the ventilation opening can be reserved as much as possible.
Furthermore, a top annular LED light source assembly is arranged around the edge of the top surface of the radiator, and an annular ventilation opening is formed between the top annular LED light source assembly and the lamp holder. The top annular LED light source component is arranged, so that the LED corn lamp can truly realize 360-degree all-dimensional light emission, and the consumption psychology of people on traditional all-dimensional light emission of the tungsten filament bulb is met; and the installation of just reversing still can realize the bottom and give out light, and the application occasion is wider.
Further, the clamping edges extending towards the inside of the clamping groove are arranged on the two sides of the clamping groove of the heat dissipation strip respectively, protruding points are arranged on the clamping edges towards the LED lamp panel, the protruding points support the LED lamp panel, and the bottom surface of the LED lamp panel is tightly attached to the bottom surface of the clamping groove. The bottom surface of the clamping edge is provided with the salient points, so that the LED lamp panel can be smoothly inserted into the clamping groove, and the bottom surface of the LED lamp panel can be tightly attached to the clamping groove of the heat dissipation strip, and a good heat conduction effect is achieved.
Furthermore, the bottom fixing seat of the radiator is outwards provided with a bottom annular LED light source assembly, the part of the bottom fixing seat, which is located inside the inner ring of the bottom annular LED light source assembly, is provided with a ventilation hole, and the ventilation hole is communicated with a hollow ventilation channel of the radiator. Air can flow in or out from the bottom surface of the radiator, and the radiating effect is improved.
The invention has the following beneficial effects:
1. the radiator is formed by distributing a plurality of independent radiating strips around an axis, and a ventilation gap is formed between every two adjacent radiating strips; the middle part of the radiator is provided with a hollow air duct which is communicated with the ventilation gap. Air can flow into the radiator from the ventilation gap and flow out from the ventilation channel and other ventilation gaps, so that the air penetrates through the radiator from the side peripheral surface of the LED corn lamp, heat is taken away, and heat dissipation is improved;
2. the heat dissipation strip is arranged into a strip-shaped hollow surrounding body, so that a chimney effect can be generated, and the air can flow quickly in the vertical direction, so that the heat dissipation is accelerated.
3. The part of the heat dissipation strip, which is located at the back of the clamping groove, is provided with a notch which penetrates through the heat dissipation strip, so that a ventilation channel is increased, and the heat dissipation effect is improved. Furthermore, the notches at the corresponding positions of all the radiating strips are positioned on the same plane, so that a linear channel penetrating through the radiator can be formed, and the flow velocity of wind is increased.
4. An annular ventilation opening is formed between the lamp cap and the radiator top fixing seat or between the lamp cap and the top annular LED light source assembly located on the radiator top fixing seat, air can flow into or out of the radiator from the annular ventilation opening in any direction of 360 degrees, and the air inflow angle and the air circulation are enlarged.
5. The lamp holder lid is established to the lamp holder bottom, and lamp holder lid bottom is to the convergent of radiator direction, forms an inverted cone or similar inclined plane, both can and form the annular vent between the fixing base of radiator top, can make the wind that the side flow comes again via the inverted cone reflection, towards the inside inflow of radiator, has improved the radiating effect.
6. The top annular LED light source component is arranged around the edge of the top surface of the radiator, so that the LED corn lamp can truly realize 360-degree all-around light emission, and the consumption psychology of people to traditional all-around light emission of the tungsten filament bulb is met; and the installation of just reversing still can realize the bottom and give out light, and the application occasion is wider.
7. The clamping edges on the two sides of the clamping groove of the heat dissipation strip are provided with the salient points towards one side of the LED lamp panel, the salient points support against the LED lamp panel, the LED lamp panel can be smoothly inserted into the clamping groove, the bottom surface of the LED lamp panel can be tightly attached to the clamping groove of the heat dissipation strip, and a good heat conduction effect is achieved.
It is noted that not all of the above effects need to be achieved simultaneously by any one product for practicing the invention.
Drawings
The invention will be further described with reference to the following figures and examples
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
FIG. 3 is an exploded view of a heat sink of an embodiment of the present invention;
FIG. 4 is an exploded view of the first embodiment of the present invention;
FIG. 5 is a second exploded view of the embodiment of the present invention;
FIG. 6 shows a perspective view of a heat sink strip in accordance with an embodiment of the present invention;
FIG. 7 shows a front view of a heat sink strip according to an embodiment of the present invention;
FIG. 8 is a front view, corresponding cross-sectional view and ventilation path showing a portion of the heat sink strip without a cut-out, through which air is reflected from the heat sink and passes;
FIG. 9 is one of the front views and the corresponding sectional view and ventilation path of the heat sink with the heat dissipating strip portion provided with slits for wind to pass through the straight passage formed by the slits in the same plane;
FIG. 10 is a second front view, corresponding cross-sectional view and ventilation path of a heat sink with a cut-out in the heat sink portion, showing the direct passage of wind through a straight passage formed by two opposing ventilation gaps;
FIG. 11 is a cross-sectional view of a mid-section of an embodiment of the present invention;
FIG. 12 is a perspective view of a mid-cut cross-sectional view of an embodiment of the present invention;
FIG. 13 illustrates a ventilation path for air flowing from an annular vent above a heat sink in accordance with an embodiment of the present invention;
FIG. 14 shows a top view of a heat sink strip according to an embodiment of the present invention;
3 FIG. 3 15 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 14 3 and 3 a 3 partial 3 enlarged 3 view 3 of 3 the 3 sectional 3 view 3; 3
Fig. 16 shows a ventilation path with wind flowing in from the bottom, according to an embodiment of the invention.
Description of reference numerals:
1. a lamp cap; 11. A straight bar-shaped lampshade; 21. An annular lamp holder;
2. a heat sink; 12. A ventilation gap; 22. An annular LED lamp panel;
3. an LED light source; 13. An air duct; 23. An annular PC lampshade;
4. a drive power supply; 14. A fin; 24. Edge clamping;
5. a heat dissipating strip; 15. Cutting; 25. Salient points;
6. a top fixed seat; 16. An annular vent; 26. An aluminum substrate;
7. a bottom fixed seat; 17. A lamp cap cover; 27. Attaching a chip LED;
8. a screw; 18. An inverted conical surface; 28. A bottom annular LED light source assembly;
9. a straight bar-shaped LED lamp panel; 19. A screw hole; 29. A vent hole.
10. A card slot; 20. A top annular LED light source assembly;
Detailed Description
Referring to fig. 1 to 16, in a preferred embodiment of the present invention, a high heat dissipation LED corn lamp includes a lamp cap 1, a heat sink 2, and an LED light source 3 disposed on the heat sink 2, wherein a driving power source 4 is disposed in the lamp cap 1; the radiator 2 comprises a plurality of independent radiating strips 5 and fixing seats for fixing the radiating strips 5, each fixing seat comprises a top fixing seat 6 positioned at the top of each radiating strip 5 and a bottom fixing seat 7 positioned at the bottom of each radiating strip 5, and the top fixing seats 6 and the bottom fixing seats 7 are connected with the radiating strips 5 in a locking mode through screws 8; a clamping groove 10 for fixing the straight LED lamp panel 9 is formed in the heat dissipation strip 5, the straight LED lamp panel 9 is arranged in the clamping groove 10, and a straight lampshade 11 is arranged at the top of the clamping groove 10; all the radiating strips 5 are distributed around an axis, ventilation gaps 12 with the same length as the radiating strips 5 are arranged between every two adjacent radiating strips 5, a hollow ventilation channel 13 is arranged in the middle of the radiator 2, and the ventilation channel 13 is completely communicated with all the ventilation gaps 12. The heat dissipation strip 5 is made of copper, aluminum and other materials with good heat conduction, and can be manufactured by adopting an extrusion molding process.
As shown in fig. 6 and 7, the heat dissipation strip 5 is a strip-shaped hollow three-side enclosure body, or a strip-shaped hollow enclosure body with an isosceles trapezoid cross section or a strip-shaped hollow enclosure body with other shapes, and is configured as a hollow enclosure body, so that a chimney effect can be generated, hot air in the heat dissipation strip 5 and external cold air generate convection, and air can flow rapidly in the vertical direction in the middle space of the enclosure body, thereby accelerating heat dissipation. At least one surface of the surrounding body extends with a radiating fin 14 which is integrated with the radiating strip 5 into a whole, and the length direction of the radiating fin 14 is the same as that of the radiating strip 5, so that the extrusion molding process is adopted. The heat dissipation strips 5 are arranged into a three-side enclosure body, and a plurality of heat dissipation strips 5 are uniformly distributed along the axis, so that the cylindrical heat radiator 2 is conveniently formed.
The part, located on the back side of the clamping groove 10, of the heat dissipation strip 5 is provided with four notches 15 penetrating through the heat dissipation strip 5, the number and the position of each heat dissipation strip 5 are the same, each notch 15 is a notch transversely penetrating through the heat dissipation strip 5, the plane where the notch 15 is located is perpendicular to the plane where the clamping groove 10 is located, and the notches 15 are communicated with the ventilation gap 12 and the ventilation channel 13, so that air circulation can be improved, and heat dissipation is improved; the corresponding position of the notches 15 of all the radiating strips 5 is on the same plane, so that a straight channel penetrating through the radiator 2 is formed, and the air flow is facilitated. As shown in fig. 8, if there is no notch 15 located on the same plane, the wind blowing from some angles on the outer peripheral surface of the heat sink 2 will be blocked by the heat dissipation strip 5, and cannot pass through the heat sink 2, so that the air circulation speed is reduced; as shown in fig. 9, after the notches 15 are arranged on the same plane, a straight channel penetrating the heat sink 2 can be formed, and the wind blowing from these angles can pass through the heat sink 2 in a straight line, so that the flow of air is accelerated, and the heat dissipation speed is improved.
As shown in fig. 10, the number of the heat dissipation strips 5 is an even number, the number of the heat dissipation strips 5 in this embodiment is 10, and all the heat dissipation strips 5 are uniformly distributed in a circumferential array. The heat dissipation strips 5 are arranged into an even number and are uniformly distributed on the circumference, so that two opposite ventilation gaps 12 can be positioned on the same plane, a linear channel is formed, and air circulation is accelerated.
As shown in fig. 11 to 13, an annular ventilation opening 16 is formed between the lamp cap 1 and the top fixing seat 6 of the heat sink 2, and the annular ventilation opening 16 is communicated with the hollow ventilation duct 13 of the heat sink 2. The annular ventilation opening 16 is arranged, air can flow into or out of the radiator 2 from the annular ventilation opening 16 from any direction of 360 degrees, and the air inflow angle and the air flow quantity are enlarged.
The bottom of the lamp holder 1 is provided with a lamp holder cover 17, the top of the lamp holder cover 17 is connected with the lamp holder 1 through screws, and the bottom of the lamp holder cover 17 is connected with the radiator 2 through screws; the aperture at the bottom of the lamp cap 17 gradually shrinks towards the direction of the radiator 2; the top fixed seat 6 and the bottom fixed seat 7 of the radiator 2 are both provided with a vent hole 29, and the vent hole 29 is communicated with the hollow ventilation channel 13 of the radiator 2; an annular ventilation opening 16 is formed between the lamp cap 17 and the top fixing seat 6 of the radiator 2. The bottom of the lamp cap 17 tapers towards the direction of the radiator 2 to form an inverted conical surface 18 or a similar inclined surface, so that an annular ventilation opening 16 can be formed between the lamp cap and the fixed seat 6 at the top of the radiator 2, and wind flowing from the side can be reflected by the inverted conical surface 18 and flows into the radiator 2 towards the inside of the radiator, so that the radiating effect is improved. The middle part of the lamp cap 17 is provided with a plurality of concave column-shaped screw holes 19 downwards, which can realize the connection between the lamp cap 17 and the radiator 2 and reserve the area of the ventilation opening as much as possible.
As shown in fig. 13, a top annular LED light source assembly 20 is disposed around the edge of the top surface of the heat sink 2, and an annular ventilation opening 16 is formed between the top annular LED light source assembly 20 and the lamp cap 1. The top annular LED light source component 20 comprises an annular lamp holder 21, an annular LED lamp panel 22 positioned on the annular lamp holder 21 and an annular PC lampshade 23 covering the annular LED lamp panel 22; wherein the annular lamp holder 21 is fixedly connected with the top fixed seat 6 of the radiator 2 through a screw 8. The top annular LED light source component 20 is arranged, so that the LED corn lamp can truly realize 360-degree all-around light emission, and the consumption psychology of people on traditional all-around light emission of the tungsten filament bulb is met; and the installation of just reversing still can realize the bottom and give out light, and the application occasion is wider.
As shown in fig. 14 to 15, two sides of the card slot 10 of the heat dissipation strip 5 are respectively provided with a card edge 24 extending towards the inside of the card slot 10, one side of the card edge 24 facing the straight-bar-shaped LED lamp panel 9 is provided with a protruding point 25, the straight-bar-shaped LED lamp panel 9 includes an aluminum substrate 26 and a plurality of adhesive-bonded LEDs 27 arranged on the aluminum substrate 26, the protruding point 25 abuts against the aluminum substrate 26 of the straight-bar-shaped LED lamp panel 9, and the bottom surface of the aluminum substrate 26 is tightly attached to the bottom surface of the card slot 10. The bottom surface of the clamping edge 24 is provided with the salient points 25, so that the straight-bar-shaped LED lamp panel 9 can be smoothly inserted into the clamping groove 10, and the bottom surface of the straight-bar-shaped LED lamp panel 9 can be tightly attached to the clamping groove 10 of the heat dissipation strip 5, and a good heat conduction effect is achieved.
As shown in fig. 4, outwards be equipped with bottom annular LED light source subassembly 28 on the bottom fixing base 7 of radiator 2, bottom annular LED light source subassembly 28 includes annular LED lamp plate 22 and annular PC lamp shade 23, and the part that is located inside bottom annular LED light source subassembly 28 inner ring of bottom fixing base 7 is equipped with ventilation hole 29, and ventilation hole 29 is linked together with the hollow ventiduct 13 of radiator 2. The bottom fixing seat 7 is connected with the heat dissipation strip 5 through screws. Air can flow in or out from the bottom surface of the radiator 2, and the heat radiation effect is improved.
The above embodiment includes the following beneficial effects:
1. the radiator 2 is formed by distributing a plurality of independent radiating strips 5 around an axis, and a ventilation gap 12 is formed between every two adjacent radiating strips 5; the middle part of the radiator 2 is provided with a hollow ventilation channel 13, and the ventilation channel 13 is communicated with the ventilation gap 12. Air can flow into the radiator 2 from the ventilation gap 12 and flow out from the ventilation channel 13 and other ventilation gaps 12, so that the air penetrates through the radiator 2 from the side peripheral surface of the LED corn lamp, heat is taken away, and heat dissipation is improved;
2. the heat dissipation strips 5 are arranged into strip-shaped hollow surrounding bodies, so that a chimney effect can be generated, and the air can flow quickly in the vertical direction, so that the heat dissipation is accelerated.
3. The part of the heat dissipation strip 5, which is positioned on the back of the clamping groove 10, is provided with a notch 15 which penetrates through the heat dissipation strip 5, so that a ventilation channel is increased, and the heat dissipation effect is improved. Furthermore, the notches 15 at the corresponding positions of all the heat dissipation strips 5 are located on the same plane, so that a straight line channel penetrating through the heat sink 2 can be formed, and the flow speed of wind is increased.
4. An annular ventilation opening 16 is formed between the lamp cap 1 and the top fixing seat 6 of the heat sink 2 or the top annular LED light source assembly 20 positioned on the top fixing seat 6 of the heat sink 2, air can flow into or out of the heat sink 2 from the annular ventilation opening 16 from any direction of 360 degrees, and the air inflow angle and the air circulation are enlarged.
5. The lamp cap 17 is arranged at the bottom of the lamp cap 1, the bottom of the lamp cap 17 is gradually reduced towards the radiator 2 to form an inverted conical surface 18 or a similar inclined surface, an annular ventilation opening 16 can be formed between the lamp cap 17 and the fixed seat 6 at the top of the radiator 2, and wind flowing from the side surface can be reflected by the inverted conical surface 18 and flows into the radiator 2 towards the inside, so that the radiating effect is improved.
6. The top annular LED light source component 20 is arranged around the edge of the top surface of the radiator 2, so that the LED corn lamp can truly realize 360-degree all-around light emission, and the consumption psychology of people to traditional all-around light emission of the tungsten filament bulb is met; and the installation of just reversing still can realize the bottom and give out light, and the application occasion is wider.
7. The card limit 24 of 5 draw-in grooves 10 both sides of heat dissipation strip is equipped with bump 25 towards the one side of LED lamp plate, and bump 25 withstands the LED lamp plate, both can make the LED lamp plate insert very smoothly in draw-in groove 10, can make the bottom surface of LED lamp plate laminate closely again to the draw-in groove 10 of heat dissipation strip 5 on, reach fine heat conduction effect.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and the present invention shall fall within the protection scope of the present invention as long as the technical effects of the present invention are achieved by equivalent means.
Claims (9)
1. The utility model provides a high heat dissipation formula LED maize lamp, includes lamp holder, radiator, sets up the LED light source on the radiator, its characterized in that: the radiator comprises a plurality of independent radiating strips and fixing seats for fixing the radiating strips, wherein the fixing seats comprise top fixing seats positioned at the tops of the radiating strips and bottom fixing seats positioned at the bottoms of the radiating strips; a clamping groove for fixing the LED lamp panel is arranged on the heat dissipation strip, and the LED lamp panel is arranged in the clamping groove; all the radiating strips are distributed around an axis, a ventilation gap is formed between every two adjacent radiating strips, a hollow ventilation channel is arranged in the middle of the radiator, and the ventilation channel is communicated with the ventilation gap; the part of the heat dissipation strip, which is positioned on the back of the clamping groove, is provided with at least one notch penetrating through the heat dissipation strip, and the notch is communicated with the ventilation gap.
2. The high heat dissipation type LED corn lamp as recited in claim 1, wherein: the heat dissipation strip is a strip-shaped hollow surrounding body.
3. The high heat dissipation LED corn lamp of claim 2, wherein: the radiating strip is a strip-shaped hollow three-side surrounding body or a hollow surrounding body with an isosceles trapezoid-shaped cross section, and at least one surface of the radiating strip is extended with radiating fins which are integrated with the radiating strip.
4. The high heat dissipation type LED corn lamp as recited in claim 1, wherein: each heat dissipation strip is provided with notches with the same number and positions, each notch is a notch transversely penetrating through the heat dissipation strip, and the notches are communicated with the ventilation gaps and the ventilation channels; the notches at the corresponding positions of all the radiating strips are positioned on the same plane.
5. The high heat dissipation LED corn lamp as recited in any one of claims 1 to 4, wherein: the number of the heat dissipation strips is even, and all the heat dissipation strips are uniformly distributed in a circumferential array.
6. The high heat dissipation LED corn lamp as recited in any one of claims 1 to 4, wherein: an annular ventilation opening is formed between the lamp cap and the fixed seat at the top of the radiator and communicated with a hollow ventilation channel of the radiator.
7. The high heat dissipation LED corn lamp of claim 6, wherein: the bottom of the lamp cap is provided with a lamp cap cover, the top of the lamp cap cover is connected with the lamp cap, and the bottom of the lamp cap cover is connected with the radiator; the bottom of the lamp cap is gradually reduced towards the radiator; the top fixing seat and the bottom fixing seat of the radiator are both provided with vent holes, and the vent holes are communicated with a hollow ventilation channel of the radiator; an annular ventilation opening is formed between the lamp cap cover and the fixed seat at the top of the radiator.
8. The high heat dissipation LED corn lamp of claim 6, wherein: and a top annular LED light source assembly is arranged around the edge of the top surface of the radiator, and an annular ventilation opening is formed between the top annular LED light source assembly and the lamp holder.
9. The high heat dissipation LED corn lamp as recited in any one of claims 1 to 4, wherein: the draw-in groove both sides of heat dissipation strip are equipped with the card limit to the inside extension of draw-in groove respectively, and the card limit is equipped with the bump towards the one side of LED lamp plate, and the bump withstands the LED lamp plate, and the bottom surface and the draw-in groove bottom surface of LED lamp plate closely laminate.
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| CN201611058830.5A CN106352258B (en) | 2016-11-24 | 2016-11-24 | High heat dissipation formula LED maize lamp |
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| CN201611058830.5A CN106352258B (en) | 2016-11-24 | 2016-11-24 | High heat dissipation formula LED maize lamp |
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| CN106352258B true CN106352258B (en) | 2022-05-03 |
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| CN107270149A (en) * | 2017-08-02 | 2017-10-20 | 杨小晨 | LED electricity-saving lamps |
| CN107606499A (en) * | 2017-10-31 | 2018-01-19 | 深圳市路漫索电子有限公司 | A kind of LED corn lamp |
| CN108343890A (en) * | 2018-03-02 | 2018-07-31 | 深圳民爆光电技术有限公司 | A kind of Novel LED light |
| CN115264413A (en) * | 2022-08-16 | 2022-11-01 | 深圳市联域光电股份有限公司 | LED lamp |
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| CN201057392Y (en) * | 2007-06-20 | 2008-05-07 | 江珏 | Bar shape LED lamp |
| US9243758B2 (en) * | 2009-10-20 | 2016-01-26 | Cree, Inc. | Compact heat sinks and solid state lamp incorporating same |
| CN102401284A (en) * | 2011-10-25 | 2012-04-04 | 吴俊峰 | LED (light-emitting diode) streetlamp adopting heat radiation and sectional type heat-dissipating structure |
| TWM468619U (en) * | 2013-07-11 | 2013-12-21 | Li-Hao Shen | Long-tube type LED light bulb |
| CN203442517U (en) * | 2013-07-25 | 2014-02-19 | 刘典容 | Self-heat-dissipation LED (light emitting diode) corn-shaped lamp |
| CN204829373U (en) * | 2015-07-16 | 2015-12-02 | 中山市永安路灯有限公司 | LED maize lamp |
| CN206207089U (en) * | 2016-11-24 | 2017-05-31 | 深圳市联域光电有限公司 | A kind of cooling type LED corn lamp high |
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Effective date of registration: 20170414 Address after: 518000 Guangdong, Baoan District, Songgang street, Luotian community, Xiangshan Avenue, No. 172 Zhengda Industrial City, building six, floor 6, Applicant after: Lian Yu Photoelectric Co., Ltd. of Shenzhen Address before: 518000 Shenzhen, Baoan District, Songgang street, Luotian community, Xiangshan Avenue, No. 172 Zhengda Industrial City, the building of the three floor of the second floor, the four floor, the five floor, the six floor and the 21 floor of the 6 Applicant before: Gan Zhoucong |
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Address after: 518000 101-601, building 6, building 12, building 101-301, building 17, building 101-301, building 21, zhengda'an industrial city, No. 172, Xiangshan Avenue, Luotian community, Yanluo street, Bao'an District, Shenzhen, Guangdong Province Applicant after: Shenzhen Lianyu photoelectric Co.,Ltd. Address before: 518000 Shenzhen Baoan District, Guangdong Province, Songgang Street Luotian Community Xiangshan Avenue 172 Zhengda'an Industrial City, 6 buildings and 6 floors Applicant before: SNC OPTO Electronic Co.,Ltd. |
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