CN214948295U

CN214948295U - High-power LED bulb

Info

Publication number: CN214948295U
Application number: CN202120925546.3U
Authority: CN
Inventors: 许建明; 伍隽广; 汤海洪
Original assignee: Guangdong Kangrong High Tech New Material Co ltd
Current assignee: Guangdong Kangrong High Tech New Material Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-30
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a high-power LED bulb, which comprises a lamp holder, a heat radiation body connected with the lamp holder, a driving power supply positioned in the lamp holder, a lens and an LED light source which are arranged on the heat radiation body; the periphery of the lens is abutted against the heat radiation body; the heat dissipation cup is matched and installed on the inner periphery of the heat dissipation body, and the periphery of the heat dissipation cup is abutted to the inner wall of the heat dissipation body; the LED light source is installed and limited on the heat dissipation cup through the installation bracket; the mounting bracket is provided with a light hole; the heat dissipation cup is arranged between the LED light source and the heat dissipation body, and the periphery of the heat dissipation cup is abutted against the inner periphery of the heat dissipation body, so that the heat dissipation area of the LED light source is increased, the heat conduction efficiency is improved, and the phenomenon that the service life of a bulb is shortened or the bulb is damaged due to overhigh temperature rise of the LED light source when a product works is prevented; in addition, the whole volume of the product is not increased, and meanwhile, the illumination power is improved, so that better and richer illumination effects are realized.

Description

High-power LED bulb

Technical Field

The utility model relates to the technical field of lighting fixtures, especially, relate to a high power LED bulb.

Background

The light source plays an important role in daily life, and the LED (light emitting diode) has the remarkable characteristics of small volume, low energy consumption, long service life and the like, and is widely applied to various lighting scenes. However, for the high-power LED ceramic bulb, since the LED light emitting chip has a small size and a high power, if the heat dissipation is poor, the service life of the LED light source is greatly affected, even the LED light source is damaged, and the like, so the heat dissipation problem is the most central problem of the products.

In order to solve the heat dissipation problem of the high-power LED ceramic bulb, the existing product generally adopts the schemes of increasing the volume of a heat dissipation mechanism, externally arranging an active heat dissipation mechanism and the like, and can improve the heat dissipation performance of the product to a certain extent, but the whole volume is increased, so that the product loses the advantages of small volume, light weight and flexible use, and the product cost is increased. Therefore, it is necessary to provide a high power LED ceramic bulb with better heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the problems existing in the prior art, the present invention provides a high power LED ceramic bulb, wherein a heat dissipation cup is disposed between an LED light source and a heat dissipation body, and the periphery of the heat dissipation cup abuts against the inner periphery of the heat dissipation body, so as to increase the heat dissipation area of the LED light source and improve the heat conduction efficiency, reduce the heat flux density of the LED light source during operation, and avoid the problem that the local temperature rise of the LED light source is too high to shorten the service life of the bulb or damage the bulb; in addition, the design can effectively improve the lighting power without increasing the overall volume of the product, and the usability of the product and the matching interchangeability of the lamp are improved qualitatively.

The purpose of the utility model is realized by adopting the following technical scheme:

a high-power LED ceramic bulb comprises a lamp holder, a heat radiation body connected with the lamp holder, a driving power supply located inside the lamp holder, a lens installed on the heat radiation body and an LED light source; the periphery of the lens is abutted against the heat radiation body; the heat dissipation cup is matched and installed on the inner periphery of the heat dissipation body, and the periphery of the heat dissipation cup is abutted to the inner wall of the heat dissipation body; the LED light source is installed and limited on the heat dissipation cup through the installation bracket; the mounting bracket is provided with a light hole.

Furthermore, the mounting bracket faces the end face of the LED light source and is provided with a mounting part for mounting the LED light source, the mounting part is matched with the LED light source in shape, and the LED light source is embedded in the mounting part.

Furthermore, the mounting part is provided with at least two buckle supporting parts for fixing the LED light source; the two buckle supporting pieces are respectively arranged on the adjacent or opposite edges of the mounting part; the buckle supporting piece horizontally extends towards the center of the mounting part and is provided with a supporting part, and the edge of the LED light source is just positioned on the supporting part; the corresponding buckle supporting piece is provided with an avoidance port.

Furthermore, the mounting bracket, the heat dissipation cup and the heat dissipation body are respectively provided with a first mounting hole, a second mounting hole and a third mounting hole; the mounting bracket and the heat dissipation cup are simultaneously locked on the heat dissipation body through fasteners.

Furthermore, the heat dissipation cup is relatively provided with two first wiring holes for a lead to pass through, and the heat dissipation body is provided with second wiring holes corresponding to the first wiring holes.

Further, the heat dissipation cup is made of aluminum and subjected to surface anodic oxidation treatment.

Further, the heat radiator is made of alumina ceramics.

Furthermore, the peripheral surface of the heat radiation body is provided with a plurality of heat radiation fins which are arranged at intervals.

Furthermore, a plurality of air holes are formed in the top end of the heat dissipation body, and a plurality of air gap grooves are formed in the bottom of the heat dissipation body.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model increases the heat dissipation area of the LED light source and improves the heat conduction efficiency by arranging the heat dissipation cup between the LED light source and the heat dissipation body as the heat dissipation intermediate medium and abutting the periphery of the heat dissipation cup with the inner periphery of the heat dissipation body, thereby preventing the service life of the bulb from being shortened or damaged due to overhigh temperature of the LED light source when the product works; in addition, the whole volume of the product is not increased, and meanwhile, the illumination power is improved, so that better and richer illumination effects are realized;

2. meanwhile, the utility model utilizes the high thermal conductivity of aluminum or aluminum alloy material to timely disperse, uniformly and quickly conduct the heat of the LED light source to the heat radiation body; the heat radiation body is made of ceramic materials, and the heat radiation capability of the composite heat radiation structure is further improved and the insulation property required by a bulb product is also ensured by utilizing the high heat radiation characteristic and the high-quality insulation property of the ceramic;

3. especially, the utility model discloses a installing support design science is ingenious, through installing support with the LED light source installation spacing last, installation operation is convenient more, quick, and can provide better, more stable installation fixed effect.

Drawings

Fig. 1 is a schematic view of the overall structure of a high-power LED bulb according to a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the high power LED bulb according to the preferred embodiment of the present invention;

fig. 3 is a schematic view of the overall structure of the mounting bracket of the high-power LED bulb according to the preferred embodiment of the present invention;

FIG. 4 is a schematic view of the connection between the LED light source and the mounting bracket of the high power LED bulb according to the preferred embodiment of the present invention;

fig. 5 is a schematic view of a heat sink structure of the high power LED bulb according to a preferred embodiment of the present invention.

In the figure: 1. a lamp cap; 2. a heat sink; 21. a third mounting hole; 22. a second wiring hole; 23. heat dissipation fins; 24. air holes are formed; 25. an air gap groove; 3. a drive power supply; 4. a lens; 5. an LED light source; 6. a heat dissipation cup; 61. avoiding the mouth; 62. a second mounting hole; 63. a first wiring hole; 7. mounting a bracket; 71. a light-transmitting hole; 72. an installation part; 73. a snap support; 731. a support portion; 74. a first mounting hole.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings and examples. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "opposite", "edge", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-5, a high-power LED bulb includes a lamp cap 1, a heat sink 2 connected to the lamp cap 1, a driving power supply 3 located inside the lamp cap 1, a lens 4 mounted on the heat sink 2, and an LED light source 5; the periphery of the lens 4 is abutted against the heat radiator 2; the heat dissipation device is characterized by further comprising a heat dissipation cup 6, wherein the heat dissipation cup 6 is installed on the inner periphery of the heat dissipation body 2 in an adaptive mode, and the periphery of the heat dissipation cup 6 is abutted to the inner wall of the heat dissipation body 2; the LED light source 5 is mounted and limited on the heat dissipation cup 6 through a mounting bracket 7; the mounting bracket 7 is provided with a light transmission hole 71.

In the present embodiment, the driving power supply 3 is fixed in the lamp cap, and the function of the driving power supply refers to the driving power supply in the prior art, and the specific arrangement form is not limited.

In this embodiment, the heat dissipation cup 6 is installed on the inner periphery of the heat dissipation body in an adaptive manner, and the heat dissipation cup 6 can be well attached to the inner wall of the heat dissipation body, so that heat generated by the LED light source can be dissipated, uniformly and quickly conducted to the heat dissipation body 2, and heat exchange between the heat dissipation body 2 and the outside air is accelerated to achieve a better heat dissipation effect.

In one embodiment, the heat dissipation body is wind bell-shaped.

In this embodiment, the heat dissipation cup 6 may be mounted in an interference fit manner with the inner wall of the heat dissipation body 2, or may be mounted in other mounting manners as long as the heat dissipation cup 6 can be mounted on the inner periphery of the heat dissipation body 2 in an adaptive manner.

The utility model increases the heat dissipation area of the LED light source and improves the heat conduction efficiency by arranging the heat dissipation cup 6 between the LED light source and the heat dissipation body 2 and the periphery of the heat dissipation cup 6 is butted with the inner periphery of the heat dissipation body 2, thereby preventing the service life of the bulb from being shortened or damaged due to overhigh temperature of the LED light source when the product works; in addition, the whole volume of the product is not increased, and meanwhile, the illumination power is improved, so that better and richer illumination effects are realized;

especially, the utility model discloses a installing support design science is ingenious, through installing support with the installation of LED light source and spacing on heat dissipation cup 6, installation operation is more convenient, quick, and can provide better, more stable installation fixed effect.

As a further preferable scheme, an end face of the mounting bracket 7 facing the LED light source 5 is provided with a mounting portion 72 for mounting the LED light source 5, the mounting portion 72 is adapted to the shape of the LED light source 5, and the LED light source 5 is embedded in the mounting portion 72.

As a further preferable scheme, the mounting part 72 is provided with at least two buckle supporting parts 73 for fixing the LED light source 5; two of the snap supports 73 are respectively disposed on adjacent or opposite edges of the mounting portion 72; the buckling support 73 horizontally extends towards the center of the mounting part 72 to form a support part, and the edge of the LED light source is just positioned on the support part 731; the heat dissipation cup 6 is provided with an avoidance port 61 corresponding to the snap support 73.

In this embodiment, the mounting bracket 7 is provided with the mounting portion 72, and the edge of the LED light source 5 is clamped into a mounting cavity formed by the supporting portion 731 of the two fastening supporting members 73 and the mounting portion 72, so that the LED light source 5 is tightly attached to the mounting portion 72, the mounting structure is more stable, the mounting is more convenient, and the mounting time is greatly reduced without mechanical connection and fixation by screws and the like;

as a further preferable scheme, the mounting bracket 7, the heat dissipation cup 6 and the heat dissipation body 2 are respectively provided with a first mounting hole 74, a second mounting hole 62 and a third mounting hole 21; the mounting bracket 7 and the heat dissipation cup 6 are simultaneously inserted into the first mounting hole 74, the second mounting hole 62 and the third mounting hole 21 through fasteners and locked on the heat dissipation body 2.

In this embodiment, the fastening member may be a screw of the related art, and the first, second, and third mounting

holes

74, 62, and 21 may be screw holes of the related art.

As a further preferable scheme, the heat radiating cup 6 is relatively provided with two first wire holes 63 through which wires can pass, and the heat radiating body 2 is provided with a second wire hole 22 corresponding to the first wire holes 63. The first wire feeding hole 63 and the second wire feeding hole 22 are right corresponding to each other, so that a wire can be more conveniently inserted.

As a further preferable scheme, the heat dissipation cup is subjected to surface anodic oxidation treatment, so that the flatness can be increased, and the fit clearance of the LED light source is improved.

As a further preferred solution, the heat dissipation cup is made of 1060 pure aluminum. In the embodiment, 1060 pure aluminum is used to make high thermal conductivity, so that the concentrated heat of the LED light source is dissipated, the heat flux density is reduced, and the concentrated heat is uniformly and quickly transferred to the heat dissipation body 2, so as to accelerate the heat exchange between the heat dissipation body 2 and the external air, thereby achieving a better heat dissipation effect.

As a further preferable scheme, the heat dissipation body 2 is made of alumina ceramics, and the insulation property required by the bulb product is ensured while the heat conductivity is further improved by utilizing the high heat radiation property of ceramics.

As a further preferable scheme, the outer circumferential surface of the heat radiating body 2 is provided with a plurality of heat radiating fins 23 arranged at intervals. In the present embodiment, the number of the heat dissipation fins 23 is 24, so that the heat dissipation area of the heat dissipation body 2 is increased, the heat dissipation effect is better, and the heat dissipation requirement of the high-power ceramic bulb is met.

As a further preferable scheme, the top end of the heat radiation body is provided with a plurality of air holes 24, and the bottom of the heat radiation body is provided with a plurality of air gap grooves 25. As an optional mode, 24 air holes are designed, and 8 air gap grooves are designed, so that the design is favorable for increasing the heat dissipation component of heat convection, and meanwhile, the interference of the LED and the power supply for heating is reduced, and the heat island effect is avoided.

The above-described embodiments are merely preferred embodiments of the present invention, and the scope of the present invention should not be limited thereto, and it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principle and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-power LED bulb comprises a lamp holder, a heat radiation body connected with the lamp holder, a driving power supply located inside the lamp holder, a lens installed on the heat radiation body and an LED light source; the periphery of the lens is abutted against the heat radiation body; the heat dissipation device is characterized by further comprising a heat dissipation cup, wherein the heat dissipation cup is mounted on the inner periphery of the heat dissipation body in a matched mode, and the periphery of the heat dissipation cup is abutted to the inner wall of the heat dissipation body; the LED light source is installed and limited on the heat dissipation cup through the installation bracket; the mounting bracket is provided with a light hole.

2. The high-power LED bulb as claimed in claim 1, wherein the end face of the mounting bracket facing the LED light source is provided with a mounting part for mounting the LED light source, the mounting part is matched with the LED light source in shape, and the LED light source is embedded in the mounting part.

3. The high power LED bulb as recited in claim 2 wherein the mounting portion is provided with at least two snap supports for securing the LED light source; the two buckle supporting pieces are respectively arranged on the adjacent or opposite edges of the mounting part; the buckle supporting piece horizontally extends towards the center of the mounting part and is provided with a supporting part, and the edge of the LED light source is just positioned on the supporting part; the heat dissipation cup is provided with an avoidance opening corresponding to the buckle support piece.

4. The high power LED bulb of claim 1, wherein the mounting bracket, the heat dissipation cup, and the heat dissipation body are respectively provided with a first mounting hole, a second mounting hole, and a third mounting hole; the mounting bracket and the heat dissipation cup are simultaneously locked on the heat dissipation body through fasteners.

5. The high power LED bulb as claimed in claim 1, wherein the heat dissipating cup is provided with two first wire holes for passing wires therethrough, and the heat dissipating body is provided with a second wire hole corresponding to the first wire holes.

6. The high power LED bulb as claimed in claim 1, wherein the heat-dissipating cup is an aluminum heat-dissipating cup with an anodized surface.

7. The high power LED bulb of claim 1, wherein the heat sink is made of an alumina ceramic.

8. The high power LED bulb as claimed in claim 1, wherein the heat sink has a plurality of spaced apart heat dissipating fins on its outer periphery.

9. The high power LED bulb as claimed in claim 1, wherein the top of the heat sink has a plurality of air holes, and the bottom of the heat sink has a plurality of air slots.