Integrated heat dissipation structure for LED forklift warning light

Abstract

This utility model discloses an LED forklift warning light with an integrated heat dissipation structure, relating to the field of vehicle lighting. It includes a lamp housing, on which an integrated metal heat dissipation component is integrally formed and fixedly mounted on the back and top inner walls. The integrated heat dissipation component consists of a main heat dissipation substrate and heat dissipation fins. The main heat dissipation substrate is respectively attached to the back and top inner walls of the lamp housing. The heat dissipation fins are fixedly mounted on the side of the main heat dissipation substrate that is attached to the lamp housing and extend outwards through the lamp housing. The main heat dissipation substrate and heat dissipation fins are integrally formed from aluminum alloy using a die-casting process. This utility model achieves efficient heat dissipation by installing the integrated heat dissipation component. The integrally formed aluminum die-cast heat dissipation substrate and heat dissipation fins establish an efficient heat conduction path, supplemented by a phase change thermal pad, greatly reducing the interfacial thermal resistance from the heat source to the heat sink and improving heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, specifically to an LED forklift warning light with an integrated heat dissipation structure. Background Technology

[0002] Forklifts are widely used in industrial environments such as warehousing and logistics. Their warning lights are used to improve operational safety and prevent collisions and accidents. Traditional LED warning lights usually use high-brightness LED light sources, but when working continuously for a long time, the LED chip will generate a lot of heat. If the heat dissipation is insufficient, it will lead to accelerated LED light decay, shortened lifespan, color shift, or even failure.

[0003] Existing LED warning lights mostly use ordinary plastic shells or simple metal heat sinks, which have limited heat dissipation performance and suffer from problems such as low heat dissipation efficiency, complex structure and large space occupation. Utility Model Content

[0004] The purpose of this invention is to provide an LED forklift warning light with an integrated heat dissipation structure to solve the technical problem of low heat dissipation efficiency mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an LED forklift warning light with an integrated heat dissipation structure, including a lamp housing. The back and top inner walls of the lamp housing are respectively fixedly fitted with integrated metal heat dissipation components through integral molding. The integrated heat dissipation components consist of a main heat dissipation substrate and heat dissipation fins. The main heat dissipation substrate is respectively attached to the back and top inner walls of the lamp housing. The heat dissipation fins are fixedly mounted on the side of the main heat dissipation substrate that is attached to the lamp housing and extend outwards through the lamp housing. The main heat dissipation substrate and the heat dissipation fins are integrally molded from aluminum alloy material through a die-casting process. The main heat dissipation substrate is thicker in the central region near the heat source and thinner in the edge region away from the heat source. The heat dissipation fins have a rectangular cross-section and are arranged in a parallel, upright manner. The height of the heat dissipation fins gradually increases from the central region to the edge region of the main heat dissipation substrate.

[0006] Preferably, the heat dissipation fins have an array of turbulence holes on their surface. The array of turbulence holes is staggered on adjacent heat dissipation fins. The opening density of the array of turbulence holes on each heat dissipation fin adopts a gradient design with denser openings at the bottom and sparser openings at the top. The total opening area of ​​the array of turbulence holes is 15%-25% of the surface area of ​​a single heat dissipation fin.

[0007] Preferably, the front end of the lamp housing is provided with a face mask, and the lamp housing and the face mask together form a sealed cavity. A decorative frame is fixedly installed in the cavity near the end of the face mask. The face mask is made of polycarbonate material and has an anti-glare texture on its surface.

[0008] Preferably, an annular sealing ring is embedded at the joint between the lamp housing and the face mask. The sealing ring is made of silicone rubber and has a sealing lip on its surface.

[0009] Preferably, a printed circuit board is disposed in the cavity formed by the lamp housing and the mask. The printed circuit board is a metal-based circuit board with copper as the substrate and the metal base layer of the printed circuit board is in direct contact with the front side of the main heat dissipation substrate. A phase change thermal pad is laid between the printed circuit board and the main heat dissipation substrate. A lens is fixedly installed on the front side of the printed circuit board by bolts. The outer surface of the lens is formed into a microprism structure by mold etching.

[0010] Preferably, the LED light source in the printed circuit board includes three groups of light emission colors: red, blue and green. The printed circuit board also integrates a microcontroller unit and a power drive circuit. The microcontroller unit has a pre-stored light emission mode control program, which can drive the LED light source combination to achieve warning light effects including constant light, slow flashing, fast flashing, strobe, and alternating flashing of three colors. The lamp housing is also provided with a terminal block for receiving external control signals.

[0011] Preferably, the bottom of the lamp housing is mounted with a rotating base, and the bottom of the rotating base is fixedly provided with mounting bolts. A power cord is connected to the back of the lamp housing at the corresponding position of the printed circuit board. The power cord passes through the lamp housing and the main heat dissipation substrate and is connected to the printed circuit board.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model achieves efficient heat dissipation by installing an integrated heat dissipation component. It adopts an aluminum die-cast integrated heat dissipation substrate and heat dissipation fins to establish an efficient heat conduction path. With the addition of a phase change thermal pad, it greatly reduces the interfacial thermal resistance from the heat source to the heat sink and improves heat dissipation efficiency.

[0014] 2. This utility model enhances the heat dissipation of the fins by opening an array of turbulence holes, breaks the stagnant air layer in the gaps between the fins, forms an effective air convection channel, reduces thermal resistance, makes heat dissipation more uniform, further enhances the heat dissipation capacity of the fins, and improves the efficiency of radiative heat dissipation. Attached Figure Description

[0015] Figure 1 This is an exploded view of the present invention;

[0016] Figure 2 This is a front view structural diagram of the present utility model;

[0017] Figure 3 This is a side view of the structure of this utility model;

[0018] Figure 4This is a top view of the structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the rear structure of the present invention;

[0020] Figure 6 This is a schematic diagram of the heat dissipation fin structure of this utility model.

[0021] In the diagram: 1. Lamp housing; 2. Faceplate; 3. Decorative frame; 4. Lens; 5. Printed circuit board; 6. Rotating base; 7. Mounting bolts; 8. Power cord; 9. Main heat dissipation base plate; 10. Heat dissipation fins; 11. Flushing hole array; 12. Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example 1: Please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6An integrated heat dissipation structure LED forklift warning light includes a lamp housing 1. The back and top inner walls of the lamp housing 1 are integrally molded and fixedly fitted with integrated metal heat dissipation components. The integrated heat dissipation components consist of a main heat dissipation substrate 9 and heat dissipation fins 10. The main heat dissipation substrate 9 is respectively attached to the back and top inner walls of the lamp housing 1. The heat dissipation fins 10 are fixedly mounted on the side of the main heat dissipation substrate 9 that is attached to the lamp housing 1 and extend outwards through the lamp housing 1. The main heat dissipation substrate 9 and the heat dissipation fins 10 are integrally molded from aluminum alloy using a die-casting process. The main heat dissipation substrate 9 is thicker in the central region near the heat source and thinner in the edge region away from the heat source. The heat dissipation fins 10 have a rectangular cross-section and are arranged in a parallel, upright manner. The height of the heat dissipation fins 10 gradually increases from the central region to the edge region of the main heat dissipation substrate 9.

[0026] The heat dissipation fin 10 has a turbulence hole array 11 on its plate surface. The turbulence hole array 11 is staggered on adjacent heat dissipation fins 10. The opening density of the turbulence hole array 11 on each heat dissipation fin 10 adopts a gradient design with denser openings at the bottom and sparser openings at the top. The total opening area of ​​the turbulence hole array 11 is 15%-25% of the surface area of ​​a single heat dissipation fin 10.

[0027] Furthermore, in this utility model, the back and top inner walls of the LED forklift warning light housing 1 are fixedly fitted with an integrated metal heat dissipation assembly using a one-piece molding technology. The integrated heat dissipation assembly consists of a main heat dissipation substrate 9 and heat dissipation fins 10. The main heat dissipation substrate 9 is directly attached to the back and top inner walls of the housing 1, while the heat dissipation fins 10 are fixed to the side of the main heat dissipation substrate 9 that is attached to the housing 1 and extend outwards through the housing 1. Both the main heat dissipation substrate 9 and the heat dissipation fins 10 are made of aluminum alloy and integrally molded using a die-casting process, ensuring the continuity and efficiency of the heat dissipation path and avoiding the interface thermal resistance problems that may occur in traditional assembly methods. The main heat dissipation substrate 9 is thicker in the central area near the heat source and thinner in the edge area away from the heat source. This thickness gradient is an optimization based on the principle of heat conduction, because LEDs... The light source is concentrated in the central area of ​​the printed circuit board 5, generating a large amount of heat. The thicker central area can quickly absorb and store heat, and diffuse the heat to the entire substrate through the high thermal conductivity of the material. The thinner edge area reduces unnecessary material usage, lowers the overall weight, and promotes rapid heat dissipation. The heat dissipation fins 10 have a rectangular cross-section and are arranged in a parallel vertical arrangement. This arrangement not only increases the heat dissipation surface area but also facilitates natural air convection. The height of the heat dissipation fins 10 gradually increases from the central area of ​​the main heat dissipation substrate 9 to the edge area. Hot air tends to rise, and the higher edge heat dissipation fins 10 can capture more rising hot airflow, enhancing heat dissipation efficiency. At the same time, this height change also optimizes structural stability and avoids deformation caused by thermal expansion.

[0028] In addition, a turbulence hole array 11 is formed on the surface of the heat dissipation fin 10. These holes are staggered on adjacent heat dissipation fins 10 to form a complex airflow path, effectively breaking the dead air layer in the gaps between the heat dissipation fins 10, promoting turbulence generation, and thus enhancing heat exchange. The opening density of the turbulence hole array 11 on each heat dissipation fin 10 adopts a gradient design with denser openings at the bottom and sparser openings at the top. This is because heat mainly accumulates in the bottom area. A higher opening density at the bottom can guide hot air upwards more quickly, while the sparse openings at the top reduce air resistance and ensure that hot air is discharged smoothly. The total opening area of ​​the turbulence hole array 11 is controlled at 15%-25% of the surface area of ​​a single heat dissipation fin 10. This range can ensure sufficient airflow without excessively weakening the mechanical strength of the heat dissipation fin 10.

[0029] Overall, the integrated heat dissipation component establishes a highly efficient heat conduction and dissipation system through material selection, structural design, and process optimization. The main heat dissipation substrate 9 is responsible for rapidly conducting heat away from the heat source, while the heat dissipation fins 10 achieve the final dissipation of heat by increasing the surface area and promoting air convection. This significantly reduces the operating temperature of the LED chip, extends its service life, and maintains the stability of luminous efficacy. In practical applications, warning lights need to operate continuously for long periods of time, and the improvement in heat dissipation efficiency directly translates into enhanced equipment reliability and safety. In addition, the die-casting integrated molding process of the integrated heat dissipation component simplifies the manufacturing process, reduces production costs, and improves the overall performance and applicability of the product, making the product more competitive in the market.

[0030] Example 2: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 An integrated heat dissipation structure LED forklift warning light includes a lamp housing 1, a face shield 2 is provided at the front end of the lamp housing 1, the lamp housing 1 and the face shield 2 together form a sealed cavity, a decorative frame 3 is fixedly installed in the cavity near the end of the face shield 2, the face shield 2 is made of polycarbonate material and has an anti-glare texture on the surface.

[0031] An annular sealing ring 12 is embedded at the joint between the lamp housing 1 and the face mask 2. The sealing ring 12 is made of silicone rubber and has a sealing lip on its surface.

[0032] The cavity formed by the lamp housing 1 and the mask 2 is provided with a printed circuit board 5. The printed circuit board 5 is a metal base circuit board with copper as the base material and the metal base layer of the printed circuit board 5 is in direct contact with the front side of the main heat dissipation substrate 9. A phase change thermal conductive pad is laid between the printed circuit board 5 and the main heat dissipation substrate 9. A lens 4 is fixedly installed on the front side of the printed circuit board 5 by bolts. The outer surface of the lens 4 is formed into a micro prism structure by mold etching.

[0033] Furthermore, this embodiment focuses on the sealing structure and optical components of the LED forklift warning light, ensuring the protective performance and luminous efficiency of the lamp body. A face shield 2 is provided at the front end of the lamp housing 1. The face shield 2 and the lamp housing 1 are precisely joined to form a sealed cavity. A decorative frame 3 is fixedly installed inside this cavity near the end of the face shield 2. The decorative frame 3 not only serves an aesthetic purpose but also helps to secure the internal components. The face shield 2 is made of polycarbonate material, which has high light transmittance, impact resistance, and weather resistance. The surface of the face shield 2 also has anti-glare textures. These fine textures are formed through molding and can scatter light, reduce direct glare, and improve the visibility and safety of the warning effect. Especially in environments with strong light, the anti-glare design can prevent operator visual fatigue. An annular sealing ring 12 is embedded at the joint between the lamp housing 1 and the face shield 2. The sealing ring 12 is made of silicone rubber and has a complex cross-sectional shape with a sealing lip. This design enhances the sealing performance. The sealing lip can tightly fit the joint surface under pressure, forming multiple barriers. This effectively prevents moisture, dust, and other contaminants from entering the cavity, thus protecting the internal electronic components. The silicone rubber is chosen based on its excellent elasticity, high temperature resistance, and anti-aging properties, ensuring that the sealing ring 12 maintains stable performance during long-term use. A printed circuit board 5 is installed inside the sealed cavity. The printed circuit board 5 is a metal-based circuit board with copper as the substrate and is in direct contact with the front side of the main heat dissipation substrate 9. This direct contact method establishes an efficient heat conduction path. A phase change thermal conductive pad is also laid between the printed circuit board 5 and the main heat dissipation substrate 9. The phase change thermal conductive pad is solid at room temperature, but it will undergo a phase change and soften when heated, filling the micro gaps and greatly reducing the interface thermal resistance, so that heat can be quickly transferred from the printed circuit board 5 to the main heat dissipation substrate 9. A lens 4 is fixedly installed on the front side of the printed circuit board 5 by bolts. The outer surface of the lens 4 is formed by mold etching to form a microprism structure. This microprism structure can optimize the distribution and focusing of light, improve the uniformity and brightness of the warning light, and reduce light loss. The fixing method of the lens 4 ensures its stability and prevents displacement due to vibration or impact.

[0034] Overall, the sealing and optical design not only improves the protection level of the warning light but also optimizes the light output. The sealed cavity prevents damage to internal components from the external environment, while the anti-glare mask 2 and microprism lens 4 ensure soft diffusion and efficient utilization of light. In practical applications, the sealing performance prevents internal short circuits or corrosion, and the optical components ensure that the warning signal is clearly visible. In addition, the installation of the decorative frame 3 simplifies the assembly process and improves production efficiency. While maintaining a compact structure, it achieves high reliability and excellent optical performance, meeting the stringent requirements of industrial vehicles for safety warning equipment.

[0035] Example 3: Please refer to Figure 1 , Figure 2 and Figure 3 An LED forklift warning light with an integrated heat dissipation structure includes a lamp housing 1. The LED light source in the printed circuit board 5 includes three groups of light emission colors: red, blue, and green. The printed circuit board 5 also integrates a microcontroller unit and a power drive circuit. The microcontroller unit has a pre-stored light emission mode control program, which can drive the LED light source combination to achieve warning light effects including constant light, slow flashing, fast flashing, strobe, and alternating flashing of three colors. The lamp housing 1 is also provided with a terminal block for receiving external control signals.

[0036] The bottom of the lamp housing 1 is mounted with a rotating base 6, and the bottom of the rotating base 6 is fixedly provided with mounting bolts 7. A power cord 8 is connected to the back of the lamp housing 1 at the corresponding position of the printed circuit board 5. The power cord 8 passes through the lamp housing 1 and the main heat dissipation substrate 9 and is connected to the printed circuit board 5.

[0037] Furthermore, this embodiment relates to the control system and installation structure of the LED forklift warning light, enhancing the intelligence and applicability of the equipment. The LED light source in the printed circuit board 5 includes three light emission color systems: red, blue, and green. This multi-color design allows for the generation of various warning light effects through mixing, improving visual recognition. The printed circuit board 5 also integrates a microcontroller unit and a power drive circuit. The microcontroller unit has a pre-stored light emission mode control program, which can drive the LED light source combination to achieve various warning light effects, including constant light, slow flashing, fast flashing, strobe, and alternating three-color flashing. This programmed control allows the warning light to flexibly adjust the signal according to different operating scenarios. For example, in a busy warehouse, a fast flash or strobe mode can attract attention more quickly, while in a low-light environment, a constant-on mode can provide continuous illumination. The microcontroller unit optimizes the switching of light effects through algorithms to ensure a smooth transition and avoid discomfort caused by sudden changes. The lamp housing 1 is also equipped with a terminal block for receiving external control signals. The terminal block allows the warning light to be connected to the main control system of the forklift or other external devices to achieve remote control and signal synchronization. For example, when the forklift reverses or turns, the warning light can automatically switch to the corresponding mode to improve operational safety. The power drive circuit is responsible for stabilizing the power supply, preventing voltage fluctuations from damaging the LED light source, and extending the equipment life.

[0038] In terms of installation, a rotating base 6 is installed at the bottom of the lamp housing 1. The rotating base 6 achieves multi-angle adjustment of the lamp body through a hinge mechanism, so that the warning light can adjust the illumination direction as needed to ensure the best visibility range. The bottom of the rotating base 6 is fixed with mounting bolts 7. The warning light is firmly installed in the appropriate position of the forklift by mounting bolts 7. The installation process is simple and quick, without the need for additional tools. The power cord 8 is through a specially designed channel to avoid interfering with the heat dissipation path, and a seal is used to prevent leakage.

[0039] Overall, this control and installation design enhances the intelligence and adaptability of the warning light. The microcontroller unit enables programmable light effects to meet diverse needs, while the rotating base 6 and mounting bolts 7 ensure flexible and stable installation. In practical applications, users can customize the warning mode according to the specific environment. For example, in high-temperature environments, the light effect can be automatically adjusted to reduce heat generation. In multi-vehicle collaboration scenarios, synchronized flashing can be achieved through external signals. In addition, the layout of the power cord 8 reduces internal clutter and lowers the risk of failure. This not only enhances the functionality of the warning light but also improves its practicality and reliability in different industrial scenarios, providing strong protection for safe forklift operation.

[0040] Working Principle: When the LED forklift warning light is working, the multi-color LED light source on the printed circuit board 5 emits light, and the heat generated is quickly absorbed by the copper-based metal substrate circuit board and transferred out through its metal base layer. The heat is first conducted to the phase change thermal pad that is in direct contact with the metal base layer. This material softens and undergoes a phase change when heated, which can efficiently fill the micro gaps and greatly reduce the interface thermal resistance. Subsequently, the heat is efficiently conducted to the main heat dissipation substrate 9, which is integrally molded from aluminum alloy die casting. The main heat dissipation substrate 9 adopts a gradient design with a thicker center and thinner edges, which facilitates the rapid expansion of heat from the central heat source to the surrounding areas. The heat dissipation fins 10, which are integrated with the main heat dissipation substrate 9, extend outward through the lamp housing 1. The gradient change in the height of the heat dissipation fins 10 from the center to the edge conforms to the law of hot air rising, effectively enhancing natural convection. At the same time, the array of turbulence holes 11, which are staggered on the heat dissipation fins 10 and denser at the bottom and sparser at the top, breaks the stagnant air layer and induces turbulence, further enhancing the heat exchange between the air and the heat dissipation fins 10. Ultimately, the heat is continuously dissipated into the surrounding air, achieving efficient heat dissipation from the chip to the environment, ensuring the stable luminous efficacy and long lifespan of the LED under long-term continuous operation.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An LED forklift warning light with an integrated heat dissipation structure, characterized in that: The lamp housing (1) includes an integrated heat dissipation assembly made of metal material, which is integrally formed and fixed on the back and top inner wall surfaces of the lamp housing (1). The integrated heat dissipation assembly consists of a main heat dissipation substrate (9) and heat dissipation fins (10). The main heat dissipation substrate (9) is attached to the back and top inner wall surfaces of the lamp housing (1). The heat dissipation fins (10) are fixed on the side of the main heat dissipation substrate (9) that is attached to the lamp housing (1) and extend outward through the lamp housing (1). The main heat dissipation substrate (9) and the heat dissipation fins (10) are integrally formed from aluminum alloy material through a die-casting process. The main heat dissipation substrate (9) is thicker in the central area near the heat source and thinner in the edge area away from the heat source. The heat dissipation fins (10) have a rectangular cross section and are arranged in a parallel upright manner. The height of the heat dissipation fins (10) gradually increases from the central area to the edge area of ​​the main heat dissipation substrate (9).

2. The LED forklift warning light with an integrated heat dissipation structure according to claim 1, characterized in that: The heat dissipation fins (10) have a perforation array (11) on their surface. The perforation array (11) is staggered on adjacent heat dissipation fins (10). The perforation density of the perforation array (11) on each heat dissipation fin (10) adopts a gradient design with denser openings at the bottom and sparser openings at the top. The total area of ​​the perforation array (11) is 15%-25% of the surface area of ​​a single heat dissipation fin (10).

3. The LED forklift warning light with an integrated heat dissipation structure according to claim 1, characterized in that: The front end of the lamp housing (1) is provided with a mask (2). The lamp housing (1) and the mask (2) together form a sealed cavity. A decorative frame (3) is fixedly installed in the cavity near the end of the mask (2). The mask (2) is made of polycarbonate material and has an anti-glare texture on its surface.

4. The LED forklift warning light with an integrated heat dissipation structure according to claim 1, characterized in that: An annular sealing ring (12) is embedded at the joint between the lamp housing (1) and the mask (2). The sealing ring (12) is made of silicone rubber and has a sealing lip on its surface.

5. The LED forklift warning light with an integrated heat dissipation structure according to claim 1, characterized in that: A printed circuit board (5) is provided inside the cavity formed by the lamp housing (1) and the mask (2). The printed circuit board (5) is a metal-based circuit board with copper as the base material, and the metal base layer of the printed circuit board (5) is in direct contact with the front side of the main heat dissipation substrate (9). A phase change thermal pad is laid between the printed circuit board (5) and the main heat dissipation substrate (9). A lens (4) is fixedly installed on the front side of the printed circuit board (5) by bolts. The outer surface of the lens (4) is formed into a microprism structure by mold etching.

6. The LED forklift warning light with an integrated heat dissipation structure according to claim 5, characterized in that: The LED light source in the printed circuit board (5) includes three groups of light emission colors: red, blue and green. The printed circuit board (5) also integrates a microcontroller unit and a power drive circuit. The microcontroller unit has a pre-stored light emission mode control program, which can drive the LED light source combination to achieve warning light effects including constant light, slow flash, fast flash, strobe and three-color alternating flashing. The lamp housing (1) is also provided with a terminal block for receiving external control signals.

7. The LED forklift warning light with an integrated heat dissipation structure according to claim 1, characterized in that: The bottom of the lamp housing (1) is mounted with a rotating base (6), and the bottom of the rotating base (6) is fixed with mounting bolts (7). A power cord (8) is connected to the back of the lamp housing (1) at the corresponding position of the printed circuit board (5). The power cord (8) passes through the lamp housing (1) and the main heat dissipation substrate (9) and is connected to the printed circuit board (5).

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