Novel heat dissipation device of miniaturized lamp

Abstract

The novel heat dissipation device of the small lamp comprises a lamp body, and a heat dissipation mechanism is installed at the top end of the lamp body. The heat dissipation mechanism comprises a cover body, a base, a copper pipe, an aluminum sheet and a heat dissipation fan; the cover body is fixed to the top end of the lamp body in a screwing mode. The base is fixedly attached to the top end of the COB light source of the lamp body, and a plurality of copper pipes extending vertically are connected to the top end of the base. A plurality of aluminum sheets which are distributed at intervals are laterally fixed at the top of the copper pipe, and a heat dissipation gap is formed between every two adjacent aluminum sheets; the heat dissipation fan is fixed on one side of the aluminum sheets, the wind direction of the heat dissipation fan is set to face a heat dissipation gap between the aluminum sheets, corrugated convex structures are arranged on the surfaces of the aluminum sheets, and the depth of the corrugated convex structures is 0.2-0.5 mm. The COB lamp is novel in structure, the heat dissipation efficiency of the lamp is improved, and the service life of the COB is prolonged; the service life of the light source is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation device, in particular to a novel heat dissipation device of miniaturized lamps and lanterns. BACKGROUND

[0002] Miniaturized lamps and lanterns are usually highly integrated and have limited internal space, which makes their heat dissipation channels relatively narrow. Traditional heat dissipation methods, such as simply relying on the natural heat dissipation of the lamp and lantern shell, cannot meet the heat dissipation needs of the large amount of heat generated during high-power operation of the lamp and lantern. As the power of the lamp and lantern continues to increase, heat accumulates inside the lamp and lantern, causing the temperature of the lamp and lantern to rise rapidly. Excessive temperature can have a serious impact on the performance of the lamp and lantern, such as reducing the luminous efficiency of the light source, shortening the service life of the light source, and even possibly causing lamp and lantern failure, affecting normal use.

[0003] Some existing heat dissipation devices have complex structures, making installation and maintenance difficult. In the limited space of miniaturized lamps and lanterns, complex structures not only increase the overall volume of the lamp and lantern, but also may affect the internal layout of the lamp and lantern, causing the installation and wiring of other components to be restricted. Moreover, complex structures also mean higher manufacturing costs and longer production cycles, which is not conducive to the large-scale promotion and application of products. SUMMARY

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a novel heat dissipation device for miniaturized lamps and lanterns, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: the utility model discloses a lamp body, the top of the lamp body is provided with a heat dissipation mechanism,

[0006] The heat dissipation mechanism comprises a cover body, a base, copper pipes, aluminum sheets and heat dissipation fans.

[0007] The cover body is fixed to the top of the lamp body by screwing.

[0008] The top of the COB light source of the lamp body is fixed with the base, and the top of the base is connected with a plurality of vertically extending copper pipes.

[0009] The top of the copper pipe is laterally fixed with a plurality of aluminum sheets distributed at intervals, and a heat dissipation gap is formed between adjacent aluminum sheets.

[0010] One side of the aluminum sheet is fixed with the heat dissipation fan, the direction of the heat dissipation fan is set to face the heat dissipation gap between the aluminum sheets, the surface of the aluminum sheet is provided with a corrugated protruding structure, and the depth of the corrugated protruding structure is 0.2-0.5mm.

[0011] Preferably, the cover is provided with a plurality of air inlet holes on one side of the heat dissipation fan, and the cover is provided with a plurality of air outlet holes on one side of the aluminum sheet.

[0012] Preferably, the copper pipe is fixedly connected with the base by welding or heat-conducting glue, and the copper pipe is filled with phase-change heat-conducting medium.

[0013] Preferably, the thickness of the aluminum sheet is 0.5-1.2 mm, and the gap width between adjacent aluminum sheets is 2-5 mm.

[0014] Preferably, the base is made of copper, the inner side of the air inlet hole is provided with a dust screen, and the opening direction of the air outlet hole is inclined downward at an angle of 15°-30°.

[0015] Preferably, a heat-conducting silica gel layer is arranged between the base and the COB light source of the lamp body, and the thickness of the heat-conducting silica gel layer is 0.3-0.8 mm.

[0016] Beneficial effects: 1. Rapid heat transfer: the phase-change heat-conducting medium filled in the copper pipe changes phase after absorbing heat, absorbs a large amount of latent heat, greatly improves the heat transfer speed and efficiency, and makes the heat quickly transfer along the copper pipe to the top;

[0017] 2. Enhanced heat dissipation: the corrugated protruding structure on the surface of the aluminum sheet increases the surface area, and when air flows through the heat dissipation gap between the aluminum sheets, the increased heat exchange area can more effectively absorb the heat on the aluminum sheet, and the heat dissipation effect is strengthened;

[0018] 3. Protection design: the air inlet hole is provided with a dust screen, which can prevent dust from entering the inside of the device and avoid affecting the heat dissipation effect due to dust accumulation; the air outlet hole is inclined downward, which not only utilizes the principle of natural convection to facilitate the exhaust of hot air, but also effectively prevents rainwater, dust and other impurities from flowing back, ensuring stable operation of the device;

[0019] 4. Stable operation: through the above-mentioned continuous heat transfer and air circulation process, efficient heat dissipation is realized, the lamp is ensured to work continuously in a stable temperature environment, and the service life of the lamp is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0021] Figure 1 is a schematic diagram of the overall three-dimensional structure of the present application;

[0022] Figure 2 is a bottom view of the present application;

[0023] Figure 3 is a B-B sectional view of the present application;

[0024] Figure 4 is a three-dimensional structure schematic view of the heat dissipation mechanism of the utility model;

[0025] Figure 5 is a schematic view of the aluminum sheet mounting structure of the utility model;

[0026] The figure mark: 1, lamp body, 2, heat dissipation mechanism, 3, cover body, 4, base, 5, copper pipe, 6, aluminum sheet, 7, heat dissipation fan, 8, air inlet, 9, air outlet. Specific implementation

[0027] The following will be combined with the attached Figures 1-5 The specific implementation of the utility model is further explained in detail.

[0028] Example one, by Figures 1-5 The utility model provides a novel heat dissipation device of miniaturized lamp, including lamp body 1, the top of lamp body 1 is equipped with heat dissipation mechanism 2;

[0029] The heat dissipation mechanism 2 includes cover body 3, base 4, copper pipe 5, aluminum sheet 6 and heat dissipation fan 7;

[0030] The cover body 3 is fixed on the top of lamp body 1 by screwing mode;

[0031] The COB light source top of lamp body 1 is fixedly connected with base 4, and the top of base 4 is connected with several vertically extending copper pipes 5;

[0032] The top of copper pipe 5 is fixedly connected with several pieces of aluminum sheet 6 distributed at intervals, and heat dissipation gap is formed between adjacent aluminum sheets 6;

[0033] One side of aluminum sheet 6 is fixedly connected with heat dissipation fan 7, and the direction of heat dissipation fan 7 is arranged to be towards the heat dissipation gap between aluminum sheets 6, the surface of aluminum sheet 6 is provided with corrugated protruding structure 12, and the depth of corrugated protruding structure 12 is 0.2-0.5mm.

[0034] Lamp body 1: as the main part of the lamp, other components are carried.

[0035] Heat dissipation mechanism 2:

[0036] Cover body 3: fixed on the top of lamp body 1 by screwing mode, plays the role of protection and guiding airflow. One side is provided with several air inlets 8, and the other side is provided with several air outlets 9, the inner side of air inlet 8 has dust screen 10, can prevent dust from entering, the opening direction of air outlet 9 is inclined downward, and the inclination angle is 15 °-30 °, which can effectively avoid rainwater and the like from entering the inside of the device.

[0037] Base 4: made of copper, fixed at the top end of the COB light source of the lamp body 1, and provided with a heat-conducting silica gel layer 11 with a thickness of 0.3-0.8mm between the COB light source and the copper base 4, which can enhance the heat transfer efficiency between the two.

[0038] Copper pipe 5: several vertical extensions connected to the top end of the base 4, fixedly connected to the base 4 by welding or heat-conducting glue, and filled with phase-change heat-conducting medium inside, which can quickly transfer heat.

[0039] Aluminum sheet 6: fixed laterally at the top of the copper pipe 5, spaced apart, forming a heat dissipation gap between adjacent aluminum sheets 6, with a thickness of 0.5-1.2mm, a gap width of 2-5mm between adjacent aluminum sheets 6, and a corrugated raised structure 12 with a depth of 0.2-0.5mm on the surface, which increases the heat dissipation area.

[0040] Heat dissipation fan 7: fixed on one side of the aluminum sheet 6, with the wind direction facing the heat dissipation gap between the aluminum sheets 6, accelerating air flow and enhancing heat dissipation effect.

[0041] Aluminum sheet 6 surface graphene-based coating, increase the heat load per unit area, thermal conductivity (W / m·K) 1500-2000, nanoparticles (such as graphene, boron nitride) embedded in the substrate surface micropores, reduce the air gap between the contact surface, the contact thermal resistance is reduced by 50%-70%, and the heat dissipation performance is enhanced.

[0042] Working principle: when the lamp is used, when the small-sized lamp is turned on, the COB light source of the lamp body 1 serves as the main heat source and generates heat continuously. The heat first encounters the heat-conducting silica gel layer 11 between the COB light source and the copper base 4. The heat-conducting silica gel layer 11 can quickly transfer the heat generated by the COB light source to the copper base 4 due to its good heat-conducting performance. Since the copper has a high thermal conductivity, the base 4 can efficiently collect and conduct heat, laying a foundation for subsequent heat transfer.

[0043] Then, the heat is conducted from the base 4 to the several copper pipes 5 connected thereto. The phase-change heat-conducting medium filled in the copper pipe 5 will undergo a phase change process from solid to liquid or gas after absorbing heat. In this phase change process, the phase-change heat-conducting medium can absorb a large amount of latent heat, greatly improving the speed and efficiency of heat transfer, so that the heat can quickly transmit along the copper pipe 5 to the top.

[0044] At the top of the copper pipe 5, the aluminum sheet 6 is fixed laterally and spaced. The unique corrugated structure 12 on the surface of the aluminum sheet 6 significantly increases the surface area of the aluminum sheet 6. When the cooling fan 7 starts to work, the strong wind makes the air enter the device from the air inlet hole 8 on one side of the cover 3. These entering air is in full contact with the aluminum sheet 6 when passing through the cooling gap between the aluminum sheets 6. Due to the increase of the surface area of the aluminum sheet 6, the heat exchange area between the air and the aluminum sheet 6 also increases accordingly, so that the heat on the aluminum sheet 6 can be more effectively absorbed.

[0045] The air carrying heat continues to flow and is finally discharged from the air outlet hole 9 on the other side of the cover 3. The downward design of the air outlet hole 9 can not only make use of the principle of natural convection to make hot air easier to discharge, but also effectively prevent impurities such as rainwater and dust from flowing into the device, affecting the cooling effect and normal operation of the device. Through such a continuous heat transfer and air circulation process, the new cooling device of the miniaturized lamp realizes efficient cooling function, ensuring the continuous work of the lamp in a stable temperature environment.

[0046] Beneficial effects: efficient heat conduction: the excellent heat conduction performance of the heat-conducting silicone layer 11 is used to quickly transfer the heat generated by the COB light source to the copper base 4, and the high heat conduction coefficient of copper is used to realize efficient heat collection and preliminary conduction.

[0047] Fast heat transfer: the phase change heat conducting medium filled in the copper pipe 5 changes phase after absorbing heat, absorbs a large amount of latent heat, greatly improves the heat transfer speed and efficiency, and makes the heat quickly transfer to the top along the copper pipe 5.

[0048] Enhanced cooling: the corrugated structure 12 on the surface of the aluminum sheet 6 increases the surface area, and when the air flows through the cooling gap between the aluminum sheets 6, the increased heat exchange area can more effectively absorb the heat on the aluminum sheet 6, strengthening the cooling effect.

[0049] Protective design: the air inlet hole 8 is provided with a dust screen 10, which can prevent dust from entering the device and avoid affecting the cooling effect due to dust accumulation; the air outlet hole 9 is inclined downward, which not only utilizes the principle of natural convection to facilitate the discharge of hot air, but also effectively prevents impurities such as rainwater and dust from flowing back, ensuring the stable operation of the device.

[0050] Stable operation: through the above continuous heat transfer and air circulation process, efficient cooling is realized, ensuring the continuous work of the lamp in a stable temperature environment, prolonging the service life of the lamp.

[0051] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A new heat dissipating device for miniaturized lamps, comprising a lamp body (1) and a heat dissipating mechanism (2), characterized in that: The top end of the lamp body (1) is provided with the heat dissipation mechanism (2); The heat dissipation mechanism (2) comprises a cover body (3), a base (4), copper pipes (5), aluminum sheets (6) and a heat dissipation fan (7); The cover body (3) is fixed to the top end of the lamp body (1) by screwing; The top end of the COB light source of the lamp body (1) is fixed with the base (4), and the top end of the base (4) is connected with a plurality of vertically extending copper pipes (5); The top of the copper pipe (5) is fixed with a plurality of aluminum sheets (6) distributed at intervals, and the heat dissipation gaps are formed between adjacent aluminum sheets (6); One side of the aluminum sheet (6) is fixed with the heat dissipation fan (7), the direction of the heat dissipation fan (7) is arranged to face the heat dissipation gap between the aluminum sheets (6), the surface of the aluminum sheet (6) is provided with a corrugated protruding structure (12), and the depth of the corrugated protruding structure (12) is 0.2-0.5mm.

2. The novel heat sink device for compact lamps according to claim 1, characterized in that: A plurality of air inlet holes (8) are arranged on one side of the cover body (3) and a plurality of air outlet holes (9) are arranged on the other side of the cover body (3).

3. The novel heat sink device for compact lamps according to claim 2, characterized in that: The copper pipe (5) and the base (4) are fixedly connected by welding or heat-conducting glue, and the copper pipe (5) is filled with phase-change heat-conducting medium.

4. The novel heat sink device for compact lamps according to claim 3, characterized in that: The thickness of the aluminum sheet (6) is 0.5-1.2mm, and the gap width between adjacent aluminum sheets (6) is 2-5mm.

5. The novel heat sink device for compact lamps according to claim 4, characterized in that: The base (4) is made of copper, the inner side of the air inlet hole (8) is provided with a dust screen (10), and the opening direction of the air outlet hole (9) is inclined downward, and the inclination angle is 15°-30°.

6. The novel heat sink device for compact lamps according to claim 5, characterized in that: The base (4) and the COB light source of the lamp body (1) are provided with a heat-conducting silica gel layer (11), and the thickness of the heat-conducting silica gel layer (11) is 0.3-0.8mm.

7. The novel heat sink device for compact lamps according to claim 6, characterized in that: The surface of the aluminum sheet (6) is sprayed with a graphene-based coating, the thermal conductivity is 1500-2000 (W / m·K), and the nano-particle graphene and boron nitride are embedded into the surface micropores of the substrate.

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