LED lamp heat dissipation structure

Abstract

The utility model relates to the technical field of LED lamps, in particular to an LED lamp heat dissipation structure which combines an active heat dissipation mechanism and a passive heat dissipation mechanism and improves heat dissipation performance. Comprising a shell, a cooling fan, a lampshade, a heat conduction substrate and a plurality of cooling fins, the cooling fan is arranged in the shell, the lampshade is arranged on the shell and communicated with the shell, a connecting plate is arranged in the lampshade, the outer wall of the heat conduction substrate is fixedly connected with the inner wall of the connecting plate, and the cooling fins are evenly distributed on the outer side of the shell at intervals. The side wall of the shell is provided with a plurality of air inlets communicated with the shell, the side wall of the lampshade is provided with a plurality of heat dissipation openings communicated with the lampshade, the air inlets, the shell, the lampshade and the heat dissipation openings form a heat dissipation channel, the LED lamp substrate is attached to the heat conduction substrate, and the control panel electrically connected with the LED lamp substrate is arranged at the bottom of the heat conduction substrate.

Description

Technical Field

[0001] The utility model relates to the technical field of LED lamps, in particular to a heat dissipation structure of an LED lamp. Background Art

[0002] An LED (Light Emitting Diode) is a solid-state semiconductor device that converts electrical energy directly into light. Originally used as indicator lights and small lights in displays, LEDs have evolved with the development of technology and are now widely used in a variety of lighting applications, from home lighting to street lighting, automotive lighting, and backlighting. LEDs offer the advantages of high luminous efficiency, energy savings, and a long lifespan, and are therefore gradually replacing traditional lighting equipment in many fields. However, since LEDs generate a large amount of heat during use, if this heat cannot be dissipated in a timely manner, it will restrict the LED's luminous effect and thus affect its normal lifespan. Therefore, the role of heat dissipation in LEDs is particularly important.

[0003] In existing LED lights, the heat sink plays a major role in heat dissipation. Heat generated by the LED light during operation is transferred to the heat sink, which then transfers the heat to the outside air, dissipating the heat. Relying solely on the heat sink for heat dissipation can lead to excessive heat accumulation, resulting in localized overheating that is difficult to dissipate and less than ideal heat dissipation. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a heat dissipation structure of an LED lamp which combines active and passive heat dissipation mechanisms to improve heat dissipation performance.

[0005] The utility model provides a heat dissipation structure for an LED lamp, comprising a shell, a heat dissipation fan, a lampshade, a heat-conducting substrate and a plurality of heat sinks, wherein the heat dissipation fan is arranged in the shell, the lampshade is arranged on the shell and is connected to the shell, a connecting plate is arranged in the lampshade, the outer wall of the heat-conducting substrate is fixedly connected to the inner wall of the connecting plate, a plurality of heat sinks are evenly spaced and distributed on the outside of the shell, a plurality of air inlets connected thereto are arranged on the side wall of the shell, a plurality of heat dissipation ports connected thereto are arranged on the side wall of the lampshade, the air inlets and the shell, the lampshade and the heat dissipation ports form a heat dissipation channel, the LED lamp substrate is attached to the heat-conducting substrate, and a control board electrically connected to the LED lamp substrate is arranged at the bottom of the heat-conducting substrate.

[0006] Furthermore, the shell includes a conical body and a columnar connecting section, the connecting section is arranged on the body, a base plate is provided at the bottom of the body, a drive motor is provided on the base plate, and the output end of the drive motor is fixedly connected to the rotating shaft of the cooling fan.

[0007] Furthermore, a plurality of fixing members are provided on the bottom plate, and the bottom plate is fixedly connected to the main body through the fixing members.

[0008] Furthermore, the side wall profile of the heat sink corresponds to the outer wall profile of the housing.

[0009] Furthermore, the lampshade is provided with a plurality of evenly distributed mounting grooves, and the heat sinks are plugged into the mounting grooves.

[0010] Furthermore, a fixing block is provided at the bottom of the heat sink, a fixing groove corresponding to the connecting section is provided on the shell, and a limiting ring is provided on the outer shell of the shell, and the limiting ring fixes the fixing block in the fixing groove.

[0011] Furthermore, the shell is provided with spiral patterns on the outside, and the limiting ring is screwed to the shell via the spiral patterns.

[0012] Furthermore, it also includes a transparent plate, which is fixed to the top of the lampshade through a pressing plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] By bonding the LED lamp substrate to the thermally conductive substrate, the heat generated by the LED during operation is quickly transferred to the thermally conductive substrate; the cooling fan accelerates the flow of air inside the housing, helping to remove the heat from the housing more quickly; the air inlet and the heat dissipation vent form an effective airflow channel, allowing cold air to enter from the air inlet, absorb heat from the thermally conductive substrate area, and then be discharged from the heat dissipation vent, achieving good air circulation; the heat sink further increases the heat dissipation area, helping to quickly diffuse heat to the surrounding air; the design of fixing the thermally conductive substrate with a connecting plate makes it easier to replace or maintain the LED lamp substrate; the combination of active and passive heat dissipation methods significantly improves the heat dissipation performance of the LED lamp, ensuring that the LED lamp operates within a relatively ideal temperature range, avoiding efficiency loss and shortened life due to overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model;

[0019] Markings in the accompanying drawings: 1. Shell; 2. Cooling fan; 3. Lampshade; 4. Thermal conductive substrate; 5. Heat sink; 6. Connecting plate; 7. Air inlet; 8. Heat dissipation vent; 9. LED lamp substrate; 10. Control board; 11. Main body; 12. Connecting section; 13. Bottom plate; 14. Drive motor; 15. Fixing part; 16. Mounting groove; 17. Fixing block; 18. Fixing groove; 19. Limiting ring; 20. Spiral pattern; 21. Transparent plate; 22. Pressure plate. DETAILED DESCRIPTION

[0020] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] like Figures 1 to 3 As shown, the utility model is an LED lamp heat dissipation structure, including a housing 1, a cooling fan 2, a lampshade 3, a heat-conducting substrate 4 and a plurality of heat sinks 5. The cooling fan 2 is arranged in the housing 1, the lampshade 3 is arranged on the housing 1 and is connected to the housing 1, a connecting plate 6 is provided in the lampshade 3, the outer wall of the heat-conducting substrate 4 is fixedly connected to the inner wall of the connecting plate 6, a plurality of heat sinks 5 are evenly spaced and distributed on the outside of the housing 1, a plurality of air inlets 7 connected thereto are provided on the side wall of the housing 1, a plurality of heat dissipation ports 8 connected thereto are provided on the side wall of the lampshade 3, the air inlet 7 and the housing 1, the lampshade 3 and the heat dissipation ports 8 form a heat dissipation channel, an LED lamp substrate 9 is attached to the heat-conducting substrate 4, and a control board 10 electrically connected to the LED lamp substrate 9 is provided at the bottom of the heat-conducting substrate 4;

[0022] By fitting the LED lamp substrate 9 with the thermally conductive substrate 4, the heat generated during the operation of the LED can be quickly transferred to the thermally conductive substrate 4; the cooling fan 2 accelerates the flow of air inside the housing 1, which helps to remove the heat from the housing more quickly; the air inlet 7 and the heat dissipation port 8 form an effective airflow channel, so that cold air can enter from the air inlet 7, absorb heat from the thermally conductive substrate 4 area, and then be discharged from the heat dissipation port 8, thereby achieving good air circulation; the heat sink 5 further increases the heat dissipation area, which helps to quickly diffuse the heat into the surrounding air; the design of fixing the thermally conductive substrate 4 with the connecting plate 6 makes it more convenient to replace or maintain the LED lamp substrate 9; the combination of active and passive heat dissipation methods significantly improves the heat dissipation performance of the LED lamp, ensures that the LED lamp operates within a relatively ideal temperature range, and avoids efficiency loss and shortened life due to overheating.

[0023] The shell 1 includes a conical body 11 and a columnar connecting section 12. The connecting section 12 is arranged on the body 11. A base plate 13 is provided at the bottom of the body 11. A drive motor 14 is provided on the base plate 13. The output end of the drive motor 14 is fixedly connected to the rotating shaft of the cooling fan 2. The conical structure helps to guide the airflow, so that the air flows more smoothly and the heat dissipation efficiency is improved. The base plate 13 serves as the basis for installing the drive motor 14, and the drive motor 14 is responsible for driving the cooling fan 2 to rotate to generate airflow.

[0024] As a preferred embodiment of the above, a plurality of fixing members 15 are provided on the base plate 13, and the base plate 13 is fixedly connected to the main body 11 through the fixing members 15; this design makes the assembly and disassembly process of the base plate 13 easier, and facilitates the maintenance and replacement of the drive motor 14 and the cooling fan 2.

[0025] As a preferred embodiment of the above, the side wall profile of the heat sink 5 corresponds to the outer wall profile of the shell 1; this design ensures that the heat sink 5 is evenly distributed on the surface of the shell 1, thereby increasing the heat dissipation area and maximizing the heat dissipation efficiency and space utilization.

[0026] As a preferred embodiment of the above, the lampshade 3 is provided with a plurality of evenly distributed mounting grooves 16, and the heat sink 5 is inserted into the mounting grooves 16; the mounting grooves 16 provide a fixed mounting position for the heat sink 5, simplifying the installation and maintenance process.

[0027] As a preferred embodiment of the above, a fixing block 17 is provided at the bottom of the heat sink 5, a fixing groove 18 corresponding to the connecting section 12 is provided on the shell 1, and a limiting ring 19 is provided on the outer shell 1, which fixes the fixing block 17 in the fixing groove 18; this design ensures that the heat sink 5 is firmly installed, avoids loosening or falling off due to vibration or external force, and improves the stability of the overall structure.

[0028] As a preferred embodiment of the above, a spiral pattern 20 is provided on the outside of the shell 1, and the limiting ring 19 is screwed to the shell 1 through the spiral pattern 20; through this design, it is easy to install and remove the limiting ring 19, and by tightening the limiting ring 19 on the shell 1, it is ensured that the fixing block 17 is firmly fixed in the fixing groove 18.

[0029] As a preferred embodiment of the above embodiment, a transparent plate 21 is further included, which is fixed to the top of the lampshade 3 by a pressing plate 22; the transparent plate 21 is used to cover the top of the LED lamp assembly to protect the LED lamp assembly from the influence of external pollutants such as dust and moisture, which helps to extend the service life of the lamp; at the same time, it ensures that the light is evenly emitted, reduces glare, and improves the lighting quality; the fixing of the transparent plate 21 by the pressing plate 22 makes the installation and disassembly process of the transparent plate 21 simpler, and facilitates the maintenance of the LED lamp assembly.

[0030] The utility model provides a heat dissipation structure of an LED lamp. When the LED lamp is turned on, the LED lamp substrate 9 starts to work, generating light and heat. The light is evenly emitted through the transparent plate 21, and the heat is transferred to the heat-conducting substrate 4 attached to it; the driving motor 14 drives the cooling fan 2 to rotate, generating forced airflow, and the external cold air enters the shell 1 through the air inlet 7, contacts the heat-conducting substrate 4, absorbs heat and becomes hot air, and the hot air continues to flow and is discharged through the heat dissipation port 8; the heat sink 5 is fixed in the fixing groove 18 on the shell 1 by the fixing block 17, and is fixed by screwing the limit ring 19 and the spiral pattern 20 on the shell 1 to ensure that the heat sink 5 is stable and reliable. The heat sink 5 dissipates heat to the air through natural convection through its large surface area, and further transfers the heat to the surrounding environment.

[0031] The heat dissipation structure of an LED lamp of the present invention has common mechanical installation, connection or setting methods, and any method that can achieve its beneficial effects can be implemented.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A heat dissipation structure for an LED lamp, characterized in that: The invention comprises a housing (1), a heat dissipation fan (2), a lampshade (3), a heat-conducting substrate (4) and a plurality of heat dissipation fins (5), wherein the heat dissipation fan (2) is arranged in the housing (1), the lampshade (3) is arranged on the housing (1) and is in communication with the housing (1), a connecting plate (6) is arranged in the lampshade (3), the outer wall of the heat-conducting substrate (4) is fixedly connected to the inner wall of the connecting plate (6), a plurality of heat dissipation fins (5) are evenly spaced and distributed on the outer side of the housing (1), a plurality of air inlets (7) in communication with the housing (1) are arranged on the side wall of the lampshade (3), a plurality of heat dissipation vents (8) in communication with the housing (1) are arranged on the side wall of the lampshade (3), the air inlets (7) and the housing (1), the lampshade (3) and the heat dissipation vents (8) form a heat dissipation channel, an LED lamp substrate (9) is attached to the heat-conducting substrate (4), and a control board (10) electrically connected to the LED lamp substrate (9) is arranged at the bottom of the heat-conducting substrate (4).

2. The LED lamp heat dissipation structure according to claim 1, characterized in that: The housing (1) comprises a conical body (11) and a columnar connecting section (12), wherein the connecting section (12) is arranged on the body (11), a bottom plate (13) is arranged at the bottom of the body (11), a driving motor (14) is arranged on the bottom plate (13), and an output end of the driving motor (14) is fixedly connected to the rotating shaft of the cooling fan (2).

3. The LED lamp heat dissipation structure according to claim 2, characterized in that: A plurality of fixing members (15) are provided on the bottom plate (13), and the bottom plate (13) is fixedly connected to the main body (11) via the fixing members (15).

4. The LED lamp heat dissipation structure according to claim 1, wherein: The side wall profile of the heat sink (5) corresponds to the outer wall profile of the housing (1).

5. The LED lamp heat dissipation structure according to claim 1, wherein: The lampshade (3) is provided with a plurality of evenly distributed mounting grooves (16), and the heat sink (5) is plugged into the mounting grooves (16).

6. The LED lamp heat dissipation structure according to claim 1, characterized in that: A fixing block (17) is provided at the bottom of the heat sink (5), a fixing groove (18) corresponding to the connecting section (12) is provided on the shell (1), and a limiting ring (19) is provided on the outer shell of the shell (1), and the limiting ring (19) fixes the fixing block (17) in the fixing groove (18).

7. The LED lamp heat dissipation structure according to claim 6, characterized in that: The shell (1) is provided with a spiral pattern (20) on the outside, and the limiting ring (19) is screwed to the shell (1) via the spiral pattern (20).

8. The LED lamp heat dissipation structure according to claim 1, wherein: It also includes a transparent plate (21), which is fixed to the top of the lampshade (3) through a pressing plate (22).

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