A warning light

Abstract

The application discloses a warning lamp, relates to the technical field of lighting devices, and improves the heat dissipation problem of the warning lamp. The bottom is provided with an air inlet and an air outlet, and a heat dissipation fan is arranged in the bottom and located at the air outlet. The lamp group comprises a heat dissipation base, a heat dissipation rod, a lamp strip, a circuit board and a lamp shade. The heat dissipation base is arranged on the bottom and has a groove with an opening facing upwards. The circuit board is arranged in the groove of the heat dissipation base. The heat dissipation rod is arranged in the heat dissipation base. The lamp strip is fixed on the surface of the heat dissipation rod. The lamp shade is fixed on the heat dissipation base.

Description

Technical Field

[0001] This application relates to the field of lighting equipment technology, and in particular to a warning light. Background Technology

[0002] Warning lights are currently widely used in transportation, fire protection, chemical industry, power and other fields. They usually need to have good sealing and waterproof performance and structural strength to cope with complex working conditions such as rainwater erosion and mechanical vibration, and ensure that the warning lights operate stably in a variety of complex environments.

[0003] Most existing warning lights use a housing structure to encapsulate the light components within a base for protection. Since warning lights are exposed to the outdoor environment for extended periods, the sealing performance of the housing is crucial. However, the light assembly generates a significant amount of heat when flashing; if this heat cannot be dissipated effectively, it will severely impact the lifespan and reliability of the light assembly. Utility Model Content

[0004] To improve the heat dissipation of warning lights, this application provides a warning light.

[0005] This application provides a warning light, which adopts the following technical solution: A warning light includes a base, a light assembly mounted on the base, and a housing covering the light assembly within the base. The base has an air inlet and an air outlet, and a cooling fan is installed inside the base at the air outlet. The light assembly includes a heat sink, a heat sink rod, a light strip, a circuit board, and a lampshade. The heat sink is mounted on the base and has an upward-facing groove. The circuit board is installed within the groove of the heat sink. The heat sink rod is installed inside the heat sink. The light strip is fixed to the surface of the heat sink rod. The lampshade is fixed to the heat sink.

[0006] By adopting the above technical solution, a system combining active and passive heat dissipation was established. The cooling fan can force external cooling air to be drawn in through the air inlet, flow through the lamp assembly, and be discharged through the air outlet, efficiently removing heat. At the same time, the core heat dissipation structure composed of the heat sink and heat dissipation rod increases the heat conduction area, which can quickly absorb and diffuse the heat generated by the lamp strip and circuit board, thereby significantly reducing the internal operating temperature and solving the lifespan and reliability problems caused by heat accumulation in the background technology.

[0007] Optionally, the heat sink has heat dissipation holes penetrating both ends of the heat sink, and both the heat sink base and the middle of the circuit board have through holes communicating with the heat dissipation holes.

[0008] By adopting the above technical solution, a through airflow channel is formed in the core heat dissipation area, allowing cooling air to flow directly through the heat sink and the middle of the circuit board, where heat is most concentrated, greatly improving heat exchange efficiency and effectively preventing local overheating.

[0009] Optionally, a baffle is provided inside the base above the air inlet to prevent debris from entering the base through the air inlet.

[0010] By adopting the above technical solution, the baffle strip, as a simple physical barrier, can effectively prevent large particles and other debris from entering the base from the air inlet.

[0011] Optionally, a circular ring is fixed inside the base, the air outlet is located inside the circular ring, the air outlet has a long strip structure, and multiple air outlets are arranged at equal intervals around the axis of the circular ring, and the cooling fan is fixedly installed on the circular ring and corresponds to the position of the air outlet.

[0012] By adopting the above technical solution, multiple equally spaced air outlets arranged in a ring allow hot air to be discharged evenly and smoothly, avoiding dead air zones and achieving uniform heat dissipation. In addition, by placing the air outlet mask in one area, the cooling fan can also effectively dissipate the hot air.

[0013] Optionally, the air inlet is located at one end of the base, and the air outlet is located at the other end of the base; the light assembly is located between the air inlet and the air outlet.

[0014] By adopting the above technical solution, a clear, straight heat dissipation air duct that flows through the entire lamp assembly was planned, ensuring that the intake cooling air must pass through the main heat source area, maximizing the use of airflow for heat dissipation and improving heat dissipation efficiency.

[0015] Optionally, the number of air inlets may be set to multiple.

[0016] By adopting the above technical solution, the overall area of ​​the air inlet is increased, improving the air intake volume and airflow speed, thereby accelerating the internal heat exchange. Multiple air inlets also constitute a redundant design, ensuring sufficient cooling air intake even if some inlets are slightly blocked.

[0017] Optionally, the base is fixedly provided with a plurality of support legs for supporting the heat sink, and the heat sink forms a heat dissipation gap between the support legs and the base.

[0018] By adopting the above technical solution, the heat dissipation gap provides an additional heat dissipation area for the bottom of the heat sink to contact with the air, and further cools it down through air convection.

[0019] In summary, this application has the following beneficial effects: Significantly improved heat dissipation efficiency: An active heat dissipation airflow channel is constructed through the base air inlet, air outlet and cooling fan. Combined with the heat sink and heat dissipation rod, the heat dissipation contact area is increased and convection heat dissipation is enhanced, which quickly removes the heat of the light assembly, solves the problem of heat accumulation in existing warning lights, and ensures the lifespan and operational reliability of the light assembly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is an exploded view of the lamp assembly in an embodiment of this application; Figure 3 This is a structural schematic diagram illustrating the air inlet and air outlet in the embodiments of this application; Figure 4 This is a schematic diagram illustrating the structure of the baffle and the ring in the embodiments of this application; Figure 5 This is a schematic diagram of the lamp assembly in an embodiment of this application; Figure 6 This is a cross-sectional schematic diagram of the lamp assembly in an embodiment of this application.

[0021] Explanation of reference numerals in the attached diagram: 1. Base; 2. Lamp assembly; 3. Housing; 4. Air inlet; 5. Air outlet; 6. Cooling fan; 7. Ring; 8. Baffle; 9. Heat sink; 10. Heat sink rod; 11. Lamp strip; 12. Circuit board; 13. Lampshade; 14. Groove; 15. Heat dissipation hole; 16. Through hole; 17. Support leg. Detailed Implementation

[0022] The present application will be further described in detail below with reference to the accompanying drawings.

[0023] This application discloses a warning light. (Refer to...) Figure 1 , 2 The warning light comprises a base 1, a light assembly 2, and a housing 3. The base 1 is typically made of metal, such as aluminum alloy, providing good structural strength and heat dissipation. The housing 3 is sealed to the base 1 via a sealing ring, forming a sealed enclosure that protects the light assembly 2 from external environmental factors such as rain. The housing 3 can be made of transparent or semi-transparent material to ensure effective light transmission.

[0024] Reference Figure 3 , 4 The base 1 has an air inlet 4 and an air outlet 5, which are located at both ends of the base 1 to form a straight heat dissipation air duct. The number of air inlets 4 can be set to multiple, for example, multiple strip-shaped air inlets 4 can be evenly distributed at one end of the base 1 to increase the air intake and airflow.

[0025] Air outlet 5 is located at the other end of base 1, and a cooling fan 6 is installed inside base 1 at air outlet 5. Cooling fan 6 is preferably an axial fan, which can force external cooling air to be drawn in from air inlet 4, flow through lamp assembly 2 and be discharged from air outlet 5, thereby removing heat.

[0026] Reference Figure 4 To optimize airflow, a ring 7 is integrally formed and fixed inside the base 1. The air outlet 5 is located inside the ring 7, is elongated, and multiple outlets are evenly spaced around the axis of the ring 7. This ensures that hot air is discharged evenly and smoothly, avoiding dead air zones. The cooling fan 6 is fixedly mounted on the ring 7, corresponding to the position of the air outlet 5, ensuring that the fan can efficiently guide hot air to the air outlet 5 when operating.

[0027] Reference Figure 4 Above the air inlet 4, a baffle 8 is also provided inside the base 1. The baffle 8 can be a protrusion integrally formed with the base 1 or a strip-shaped component installed separately. Its function is to prevent debris such as leaves and insects from entering the interior of the base 1 through the air inlet 4, without affecting air circulation.

[0028] Reference Figure 2 , 5 The lamp assembly 2 is mounted on the base 1, located between the air inlet 4 and the air outlet 5 to fully utilize the heat dissipation duct. The lamp assembly 2 includes a heat sink 9, a heat dissipation rod 10, a lamp strip 11, a circuit board 12, and a lamp cover 13. The heat sink 9 is typically made of a material with good thermal conductivity, such as aluminum alloy, and has an upward-facing groove 14 whose shape matches the circuit board 12. The circuit board 12 is mounted within the groove 14 of the heat sink 9 and secured with screws or thermally conductive adhesive to ensure good thermal contact. The circuit board 12 integrates drive circuitry and control components for controlling the operation of the lamp strip 11.

[0029] Reference Figure 5 , 6 The heat sink 10 is installed inside the heat sink base 9. The heat sink 10 is also made of a highly thermally conductive material, such as copper or aluminum, and its shape can be cylindrical or polygonal to increase the surface area. The heat sink 10 has heat dissipation holes 15 extending through both ends, forming an internal airflow channel. Simultaneously, both the heat sink base 9 and the circuit board 12 have through holes 16 in their middle sections that communicate with the heat dissipation holes 15. These through holes 16 are aligned with the heat dissipation holes 15, together forming a continuous airflow path, allowing cooling air to flow directly through the heat sink 10 and the middle section of the circuit board 12—the areas with the highest heat concentration—significantly improving heat exchange efficiency.

[0030] Reference Figure 5 , 6 The light strip 11 is fixed to the surface of the heat sink 10, and is in close contact with the heat sink 10 by welding or bolts. The heat sink 10 absorbs the heat generated by the light strip 11 and dissipates heat through its surface and internal heat dissipation holes 15. The lamp cover 13 is fixed to the heat sink 9 and covers the light strip 11, serving to protect and diffuse the light. The lamp cover 13 can be a lens or a diffuser plate to optimize the light distribution.

[0031] Reference Figure 5, 6 Several support legs 17 are fixedly installed on the base 1. The support legs 17 can be columns or bosses, and are integrally formed with the base 1. The heat sink 9 is mounted on the base 1 via the support legs 17, and the two are fixedly connected by bolts, forming a heat dissipation gap between the heat sink 9 and the base 1. This gap allows air to flow at the bottom of the heat sink 9, further reducing the temperature of the heat sink 9 through natural convection.

[0032] The implementation principle of a warning light in this application embodiment is as follows: During operation, when the warning light is powered on, the light strip 11 illuminates and generates heat. The cooling fan 6 starts, drawing in cooling air through the air inlet 4. The air flows over the surfaces of the heat sink 9 and heat dissipation rod 10, as well as inside the heat dissipation holes 15 and through holes 16, absorbing heat and becoming hot air, which is finally forced out by the fan from the air outlet 5. Simultaneously, the heat sink 9 and heat dissipation rod 10 diffuse heat to a larger area through thermal conduction and exchange heat with the air through the heat dissipation gaps. This combination of active and passive cooling ensures stable internal temperature of the warning light and extends component lifespan.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A warning light, comprising a base (1), a light assembly (2) mounted on the base (1), and a housing (3) covering the light assembly (2) on the base (1); characterized in that: The base (1) is provided with an air inlet (4) and an air outlet (5), and a cooling fan (6) is installed in the base (1) at the air outlet (5); the lamp assembly (2) includes a heat sink (9), a heat sink rod (10), a light strip (11), a circuit board (12), and a lamp cover (13); the heat sink (9) is installed on the base (1) and has an upward-facing groove (14); the circuit board (12) is installed in the groove (14) of the heat sink (9); the heat sink rod (10) is installed in the heat sink (9); the light strip (11) is fixed on the surface of the heat sink rod (10); the lamp cover (13) is fixed on the heat sink (9).

2. A warning light according to claim 1, characterized in that: The heat sink (10) has heat dissipation holes (15) that pass through both ends of the heat sink (10), and the heat sink (9) and the circuit board (12) both have through holes (16) that communicate with the heat dissipation holes (15).

3. A warning light according to claim 1, characterized in that: A baffle (8) is provided inside the base (1) above the air inlet (4) to prevent debris from entering the base (1) through the air inlet (4).

4. A warning light according to claim 1, characterized in that: The base (1) has a fixed ring (7) inside, the air outlet (5) is located inside the ring (7), the air outlet (5) has a long strip structure, and multiple air outlets are arranged at equal intervals around the axis of the ring (7). The cooling fan (6) is fixedly installed on the ring (7) and corresponds to the position of the air outlet (5).

5. A warning light according to claim 1, characterized in that: The air inlet (4) is located at one end of the base (1), and the air outlet (5) is located at the other end of the base (1); the lamp assembly (2) is located between the air inlet (4) and the air outlet (5).

6. A warning light according to claim 5, characterized in that: The number of air inlets (4) is set to multiple.

7. A warning light according to claim 1, characterized in that: The base (1) is fixedly provided with a number of support legs (17) for supporting the heat sink (9), and the heat sink (9) forms a heat dissipation gap with the base (1) through the support legs (17).

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