A wavelength adjustable lamp

Abstract

This application relates to a wavelength-tunable luminaire, belonging to the field of lighting equipment technology. It includes: a light source module; a filter element disposed in the optical output direction of the light source module to change the spectral characteristics of the output light; a heat sink for mounting the light source module and providing a heat dissipation channel; and a protective housing detachably connected to the heat sink for encapsulating the light source module and the filter element and providing explosion-proof protection. The filter element is installed within the heat sink via a detachable connection structure. This application, through its detachable connection structure, allows for easy installation and replacement of the filter element without replacing the entire luminaire, reducing replacement costs and avoiding resource waste. Users can adjust the lighting wavelength according to different environments, improving the adaptability and functionality of the explosion-proof luminaire. Furthermore, the protective housing ensures the safe encapsulation of the light source module and the filter element, maintaining explosion-proof performance, making it suitable for flammable and explosive environments.

Description

Technical Field

[0001] This application relates to the field of lighting equipment technology, and in particular to a wavelength-adjustable luminaire. Background Technology

[0002] Explosion-proof lighting fixtures, due to their special function of preventing fires caused by electrical equipment, are widely used in flammable and explosive hazardous locations such as oil refineries, chemical processing plants, grain silos, and flour mills. These locations have stringent safety requirements for lighting equipment, making the design and use of explosion-proof lighting fixtures a crucial part of ensuring production safety. Traditional explosion-proof lighting fixtures typically only provide fixed-wavelength illumination and cannot adjust the light wavelength to meet different lighting needs. In situations requiring different wavelengths of illumination, it is usually necessary to replace the entire fixture or the LED light source, which not only increases operating costs but also causes operational inconvenience.

[0003] While some explosion-proof lighting fixtures using different wavelength LEDs are available on the market, several problems remain. First, LEDs of different wavelengths have significantly different electrical parameters, requiring independent driver power supplies for each wavelength, thus increasing the complexity of electrical design. Second, the complex matching between power supplies and LED chips of different wavelengths makes fixture replacement cumbersome and requires specialized technicians, increasing maintenance difficulty and labor costs. Furthermore, explosion-proof lighting fixtures using different wavelength LEDs involve replacing multiple independent driver power supplies and light sources, resulting in high overall replacement costs and resource waste, further reducing the economic efficiency of the equipment.

[0004] Therefore, there is an urgent need for a simpler, more economical and efficient solution to address the problems in existing technologies and improve the application benefits of explosion-proof lighting fixtures. Utility Model Content

[0005] To address the issues of complex operation, difficult maintenance, and high cost associated with wavelength adjustment in existing explosion-proof lighting fixtures, this application provides a wavelength-adjustable lighting fixture.

[0006] The wavelength-adjustable lamp provided in this application adopts the following technical solution:

[0007] A wavelength-adjustable luminaire, comprising:

[0008] Light source module;

[0009] A filter element is disposed in the optical path output direction of the light source module to change the spectral characteristics of the output light;

[0010] A heat sink is used to mount the light source module and provide a heat dissipation channel;

[0011] A protective housing, detachably connected to the heat sink, is used to encapsulate the light source module and the filter element and provide explosion-proof protection.

[0012] The filter element is installed inside the heat sink via a detachable connection structure.

[0013] By adopting the above technical solution and setting a detachable connection structure, the installation and replacement process of the filter element is simplified, eliminating the need to replace the entire lamp, thus simplifying the operation. Since the filter element and heat sink are detachably connected, the filter element can be replaced independently as needed without replacing the entire light source module. The flexible wavelength adjustment function reduces the overall replacement cost of the lamp, avoids resource waste, and improves economic efficiency. Furthermore, users can flexibly adjust the lighting wavelength according to different working environments and needs, enhancing the adaptability and functionality of the explosion-proof lamp and providing more application scenario options. In addition, the protective housing provides robust encapsulation for the light source module and filter element, maintaining good explosion-proof performance and ensuring safe use in flammable and explosive environments.

[0014] In one specific implementation, the detachable connection structure includes a fixing screw and a plurality of fixing posts disposed on the inner bottom wall of the radiator. The filter element is placed on the plurality of fixing posts, and the fixing screw passes through the filter element and is inserted into the fixing post, and is threadedly connected to the fixing post.

[0015] By adopting the above technical solution, the filter element can be firmly installed on the heat sink using a structure of fixing screws and fixing posts. At the same time, the threaded connection makes the installation and disassembly process very simple. Users can complete the installation, disassembly or replacement operation without using complicated tools and techniques. The filter element can be quickly replaced according to different usage scenarios, thereby improving the convenience of use.

[0016] In one specific implementation scheme, a first waterproof ring is further included. The first waterproof ring is fixed inside the heat sink by a concave-convex structure. The first waterproof ring is arranged along the circumference of the filter element and abuts and seals against the filter element. The light source module is located inside the first waterproof ring.

[0017] By adopting the above technical solution, the circumferential sealing design of the first waterproof ring and the filter element ensures a tight connection between the filter element and the heat sink. The first waterproof ring is firmly bonded to the inner wall of the heat sink through its concave-convex structure, which can prevent moisture, dust or other external pollutants from entering the light source module area, ensuring the dryness and safety inside the lamp, guaranteeing the normal operation of the light source module during operation, and extending the service life of the entire lamp.

[0018] In one specific implementation, the concave-convex structure includes a convex ring on the inner bottom wall of the radiator and an annular groove on the first waterproof ring. The annular groove is located on the side of the first waterproof ring away from the filter element, and the convex ring is inserted into and abuts against the annular groove.

[0019] By adopting the above technical solution, the design of the convex ring and the annular groove makes the contact between the first waterproof ring and the heat sink less prone to loosening, preventing loosening caused by vibration or external force during use. Furthermore, through the tight fit between the convex ring and the annular groove, the first waterproof ring can form a good contact surface with the heat sink, maintaining a long-term sealing effect, thereby ensuring the sealing performance of the light source module, improving the overall sealing performance, waterproof performance and stability, and simplifying the installation and maintenance process.

[0020] In one specific implementation, the light source module is fixed inside the heat sink by mounting screws.

[0021] By adopting the above technical solution, the light source module is fixed in the heat sink by mounting screws, which ensures that the light source module will not loosen or shift during use. The installation process is quick and intuitive. During maintenance, the light source module can be easily disassembled for inspection or replacement simply by loosening the mounting screws, thereby reducing maintenance time and difficulty.

[0022] In one specific implementation, the protective housing includes a light-transmitting cover and a protective mesh cover. The light-transmitting cover is threadedly connected to the heat sink and covers the outside of the light source module and the filter element. The protective mesh cover is fitted over the outside of the light-transmitting cover and is fixed to the outer wall of the heat sink by connecting screws.

[0023] By adopting the above technical solution, the light-transmitting cover allows light emitted by the light source module to pass through, thereby achieving the lighting effect. The light-transmitting cover not only protects the light source module from external factors, but also ensures the uniformity and intensity of the transmitted light. The protective mesh cover provides additional protection for the light-transmitting cover, which can effectively absorb impact energy and prevent the light-transmitting cover from breaking or the light source module from being damaged. This prevents external fires caused by the explosion or sparks of the lamps, achieving an explosion-proof effect and improving overall safety.

[0024] In one specific implementation, the system further includes a base and a power module. The base is located on the side of the heat sink away from the light-transmitting cover and is detachably connected to the heat sink. The power module is housed within the base and is electrically connected to the light source module.

[0025] By adopting the above technical solution, the base, power module and heat sink are tightly integrated to provide a stable power supply and effective heat dissipation for the light source module; by integrating the power module into the base, not only is the space utilization of the lamp improved, but the risk of failure is also reduced, and the overall reliability and maintenance convenience are enhanced.

[0026] In one specific implementation, the power module includes a power source and an emergency battery, with the power source electrically connected to the light source module and the emergency battery.

[0027] By adopting the above technical solution, the integrated use of the power module and emergency battery can improve the overall reliability and durability of the lamp. The power module is responsible for providing stable power to the light source module, while the emergency battery serves as a backup power source to ensure the normal operation of the light source module when the power is interrupted, thereby avoiding the risk of the lamp failing to work due to power interruption and ensuring that the lamp is always available.

[0028] In one specific implementation, the radiator and the base are sealed by a second waterproof ring.

[0029] By adopting the above technical solution, the second waterproof ring can ensure the sealing between the radiator and the base, prevent external moisture, humidity or contaminants from entering the radiator and the base, ensure the normal operation of the light source module and power module in the radiator and the base, avoid failures caused by moisture, and thus extend the overall service life.

[0030] In one specific implementation, the base is provided with a plurality of waterproof plugs, which are fixed to the base by threaded plugs.

[0031] By adopting the above technical solution, a firm and efficient seal is formed between the waterproof plug and the base through the threaded plug, which prevents the waterproof plug from loosening or failing, thereby preventing water, moisture or other liquids from entering the interior through the holes in the base, avoiding damage, corrosion or short circuit problems of the internal power module, and extending the service life of the power module.

[0032] In summary, the beneficial technical effects of this application are as follows: the ingenious design of the detachable connection structure, filter element, and protective housing improves the maintainability and adaptability of the luminaire; the filter element adopts a detachable installation method, allowing users to easily adjust the spectral characteristics to meet the wavelength requirements of different working environments; at the same time, the luminaire's internal waterproof ring and protective housing design ensure the sealing and explosion-proof function of the light source module and filter element, enhancing safety and durability, making it suitable for use in flammable and explosive environments;

[0033] In addition, the integrated design of the power module and the waterproof structure of the base improve the overall stability of the luminaire, reduce the risk of failure, and ensure reliable power supply. Through these innovative designs, the maintenance and replacement of the luminaire become simpler, allowing users to complete the operation quickly, reducing the overall replacement cost, and improving the functionality and adaptability of the luminaire in various application scenarios. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a wavelength-adjustable lamp according to an embodiment of this application.

[0035] Figure 2 It is an exploded view used to display filter elements, light source modules, and protective housings.

[0036] Figure 3 It is a cross-sectional view used to show the internal structure of a lighting fixture.

[0037] Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0038] Explanation of reference numerals in the attached diagram: 1. Protective mesh cover; 2. Light-transmitting cover; 3. Filter plate; 4. First waterproof ring; 5. COB LED bead; 6. Heat sink; 7. Second waterproof ring; 8. Power supply; 9. Fixing plate; 10. Emergency battery; 11. Base; 12. Waterproof plug; 13. Threaded plug; 14. Fixing post; 15. Fixing screw; 16. Mounting screw; 17. Raised ring; 18. Annular groove; 19. Connecting screw; 20. Locking screw; 21. Limiting screw. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0040] Reference Figure 1 and Figure 2 This application discloses a wavelength-adjustable luminaire, which has the function of flexibly adjusting spectral characteristics and can be adapted to the lighting wavelength requirements of different workplaces. The wavelength-adjustable luminaire of this application mainly includes:

[0041] The light source module is the core component of the lamp and is responsible for the light source output;

[0042] A filter element is set in the optical path output direction of the light source module to change the spectral characteristics of the output light. The filter function effectively adjusts the wavelength of the light emitted by the light source to meet specific application requirements.

[0043] The filter element is installed in the heat sink 6 through a detachable connection structure, making installation and replacement more convenient. In this embodiment, the filter element includes, but is not limited to, a flat filter plate 3, whose wavelength transmission characteristics include, but are not limited to, red, yellow, green, blue or infrared filtering characteristics. Users can select a suitable filter plate 3 according to different requirements of the lighting environment.

[0044] Heat sink 6 is used to install the light source module and provide an effective heat dissipation channel to ensure that the light source module can maintain a stable operating temperature during long-term operation. In this embodiment, heat sink 6 includes, but is not limited to, a die-cast aluminum alloy heat sink, which has high thermal conductivity. Heat sink 6 has multiple heat dissipation channels to ensure that heat can be dissipated in time and prevent overheating from causing equipment failure or performance degradation.

[0045] The protective housing, detachably connected to the heat sink 6, is used to encapsulate the light source module and the filter plate 3, and provides explosion-proof protection to prevent damage to the lamp from external objects and ensure the safe use of the lamp in hazardous environments.

[0046] During assembly, the light source module is first installed inside the heat sink 6 to ensure that the light source module is stably fixed and to provide an effective heat dissipation channel through the heat sink 6. Then, the filter plate 3 is detachably installed in the optical path output direction of the light source module in order to adjust the spectral characteristics of the output light. After the lamp is initially assembled, the protective housing is installed on the heat sink 6 to ensure that the light source module and the filter plate 3 are fully encapsulated and can provide explosion-proof protection.

[0047] During use, users can adjust the illumination wavelength of the lamp as needed, remove the protective housing and take out the filter 3 for replacement. By replacing the filter 3 with different wavelength transmission characteristics, users can easily adjust the output spectrum of the lamp to meet the lighting wavelength requirements of different workplaces. During the replacement process, since the filter 3 adopts a detachable connection structure, users do not need to disassemble the entire lamp, thereby reducing the complexity of operation.

[0048] During this process, since the filter plate 3 and the heat sink 6 are detachably connected, maintenance personnel can replace the filter plate 3 independently as needed without replacing the entire light source module, thereby reducing the overall replacement cost of the lamp and avoiding resource waste. In addition, users can flexibly adjust the lighting wavelength according to different working environments and needs, enhancing the adaptability and functionality of the explosion-proof lamp and providing more application scenario options.

[0049] Reference Figure 2-4The light source module includes, but is not limited to, COB LED chips 5. COB LED chips 5 are achieved by arranging multiple LED chips on the same substrate, using an efficient heat dissipation structure and advanced packaging technology to achieve stronger light output and higher luminous efficacy. COB LED chips 5 are installed on the inner bottom wall of the heat sink 6. COB LED chips 5 are connected to the heat sink 6 by mounting screws 16 and fixed inside the heat sink 6, thereby ensuring the installation stability of the light source module. The light source module can achieve efficient heat dissipation through the heat sink 6 to prevent the lamp from overheating.

[0050] The mounting screw 16 passes vertically through the substrate of the COB LED bead 5 and is then inserted into the inner bottom wall of the heat sink 6 for threaded connection and fixation. This ensures that the COB LED bead 5 does not loosen or shift during use, and makes the installation process quick and intuitive. During maintenance, the COB LED bead 5 can be easily disassembled for inspection or replacement simply by loosening the mounting screw 16, thereby reducing maintenance time and difficulty.

[0051] In a specific implementation, the detachable connection structure includes fixing screws 15 and several fixing posts 14 located on the inner bottom wall of the heat sink 6. The filter plate 3 is placed on the fixing posts 14. In this embodiment, the height of the fixing posts 14 includes, but is not limited to, 1-5cm, to ensure that the filter plate 3 maintains a certain distance from the light source module. The fixing screws 15 pass through the filter plate 3 vertically and are inserted into the fixing posts 14, and are threadedly connected to the fixing posts 14, thereby firmly fixing the filter plate 3 in the optical path output direction of the light source module. When the filter plate 3 needs to be replaced, only a new filter plate 3 needs to be replaced and the threaded connection needs to be re-established. Maintenance personnel can quickly complete the operation and reduce downtime.

[0052] This structure ensures that the filter plate 3 is stably fixed and can be replaced when needed by loosening the fixing screws 15. Users can complete the installation, disassembly or replacement without using complicated tools and techniques. The filter plate 3 can be quickly replaced according to different usage scenarios, and the spectral characteristics of the lamp can be flexibly adjusted, thereby improving the ease of use.

[0053] Reference Figure 1 and Figure 2 In this embodiment, the protective housing not only provides necessary encapsulation for the COB LED beads 5 and the filter plate 3, but also serves as explosion-proof protection. The protective housing includes a light-transmitting cover 2 and a protective mesh cover 1. The light-transmitting cover 2 is fixed to the heat sink 6 by a threaded connection. In this embodiment, the inner wall of the heat sink 6 is provided with an internal thread, and the outer wall of the light-transmitting cover 2 is provided with an external thread. During installation, the light-transmitting cover 2 is screwed into the threaded interface of the heat sink 6, and the internal thread and the external thread are threadedly connected to ensure that the light-transmitting cover 2 is firmly fixed to the heat sink 6, thereby protecting the light source module from external contaminants and ensuring that the light emitted by the light source module is evenly distributed through the light-transmitting cover 2.

[0054] The protective mesh cover 1 is fitted onto the outside of the light-transmitting cover 2. The protective mesh cover 1 is fixed to the outer wall of the radiator 6 by connecting screws 19. The connecting screws 19 pass horizontally through the holes on the protective mesh cover 1 and are then inserted into the holes on the outer wall of the radiator 6 for threaded connection. The protective mesh cover 1 is made of a high-strength, impact-resistant material, including but not limited to stainless steel. The protective mesh cover 1 provides additional protection for the light-transmitting cover 2. When subjected to strong external impact, it can effectively absorb impact energy, prevent the light-transmitting cover 2 from breaking or the light source module from being damaged, thereby preventing external fires caused by the explosion or sparks of the lamp, achieving an explosion-proof effect and improving overall safety.

[0055] Reference Figure 2 and Figure 3 In this embodiment, a base 11 and a power module are also included. The base 11 is located on the side of the heat sink 6 away from the light-transmitting cover 2. The base 11 and the heat sink 6 are detachably connected. In this embodiment, the base 11 and the heat sink 6 are fixed together by locking screws 20. The locking screws 20 pass through the hole in the outer wall of the heat sink 6 in the vertical direction and are then inserted into the hole on the base 11 for threaded connection and fixation.

[0056] The power module is housed within the base 11 and is electrically connected to the COB LED beads 5 to ensure stable operation of the lamp. The power module includes a power supply 8 and an emergency battery 10, both of which are electrically connected to the COB LED beads 5. In this embodiment, the power supply 8 is partially installed within the heat sink 6 and is fixed within the heat sink 6 by a fixing plate 9 and a limiting screw 21. It is directly electrically connected to the COB LED beads 5 to provide stable power to the lamp. The emergency battery 10 serves as a backup power supply 8, which can prevent the lamp from shutting down due to power outages and ensure that the lamp can still provide normal illumination in emergency situations.

[0057] Reference Figure 2 and Figure 4 To ensure the normal operation of the lamps in humid or harsh environments, this embodiment is designed with multiple waterproof structures. First, a first waterproof ring 4 is provided inside the heat sink 6. The first waterproof ring 4 includes, but is not limited to, a waterproof silicone ring. The first waterproof ring 4 is arranged along the circumference of the filter plate 3 and abuts and seals against the filter plate 3. The light source module is located inside the first waterproof ring 4. This ensures the sealing between the filter plate 3 and the heat sink 6, preventing moisture or dust from entering the light source module area, thereby protecting the normal operation of the light source module.

[0058] In specific implementation, the first waterproof ring 4 is fixed to the inner wall of the heat sink 6 through a concave-convex structure. The concave-convex structure includes a convex ring 17 on the inner bottom wall of the heat sink 6 and an annular groove 18 on the first waterproof ring 4. The annular groove 18 is located on the side of the first waterproof ring 4 away from the filter plate 3, and the convex ring 17 is inserted into and abuts against the annular groove 18. The matching design of the convex ring 17 and the annular groove 18 makes it difficult for the contact between the first waterproof ring 4 and the heat sink 6 to loosen, preventing loosening due to vibration or external force during use. On the other hand, it allows the first waterproof ring 4 to form a good contact surface with the heat sink 6, maintaining a long-term sealing effect, thereby ensuring the sealing of the light source module.

[0059] In addition, the heat sink 6 and the base 11 are sealed by a second waterproof ring 7, which includes, but is not limited to, a waterproof silicone ring, to further prevent external moisture or contaminants from entering the interior and ensure the stable operation of each component of the lamp.

[0060] In the design of the base 11, several waterproof plugs 12 are also provided. These waterproof plugs 12 are installed and fixed on the base 11 by threaded plugs 13. In this embodiment, the waterproof plugs 12 include, but are not limited to, waterproof silicone plugs, and the threaded plugs 13 include, but are not limited to, metal threaded plugs 13. The waterproof plugs 12 are embedded in the base 11 and then threadedly connected to the base 11 by the threaded plugs 13, so as to abut and fix the waterproof plugs 12 in the base 11, thereby ensuring that water vapor cannot enter the interior through the holes of the base 11, and further improving the waterproof performance.

[0061] The implementation principle of this application embodiment is as follows: During assembly, the COB LED bead 5 is placed on the inner bottom wall of the heat sink 6, and the mounting screw 16 is used to pass through the COB LED bead 5 and then inserted into the inner bottom wall of the heat sink 6 for threaded connection and fixation. The mounting screw 16 securely installs the COB LED bead 5 on the heat sink 6, thereby fixing the light source module inside the heat sink 6 and ensuring good contact between the COB LED bead 5 and the heat sink 6.

[0062] Next, install the first waterproof ring 4 into the radiator 6, align the annular groove 18 on the first waterproof ring 4 with the protruding ring 17 inside the radiator 6 and insert it so that the protruding ring 17 is just inserted and in close contact with the inner wall of the annular groove 18, forming a firm combination, and ensuring the connection stability between the first waterproof ring 4 and the radiator 6.

[0063] Select a filter plate 3 with appropriate wavelength transmission characteristics according to the requirements of the lighting environment. Place the filter plate 3 on several fixed posts 14 and the first waterproof ring 4, ensuring that its position is correct. Use fixing screws 15 to pass through the filter plate 3 and insert the fixing screws 15 into the fixed posts 14. Connect the fixing screws 15 and the fixed posts 14 by threading, so that the filter plate 3 is firmly abutted against the fixed posts 14 and the first waterproof ring 4, ensuring a tight connection between the first waterproof ring 4, the filter plate 3 and the heat sink 6, and forming an effective seal for the internal COB lamp beads 5.

[0064] After the initial assembly of the lamp is completed, screw the light-transmitting cover 2 into the threaded interface of the heat sink 6 to ensure that the light-transmitting cover 2 is firmly fixed to the heat sink 6. Then, put the protective mesh cover 1 on the outside of the light-transmitting cover 2. The protective mesh cover 1 is fixed to the outer wall of the heat sink 6 by connecting screws 19, providing additional protection for the light-transmitting cover 2. When subjected to strong external impact, it can effectively absorb impact energy and prevent the light-transmitting cover 2 from breaking or the light source module from being damaged, thereby achieving the explosion-proof effect.

[0065] When the lighting fixture needs to be used in different workplaces, the illumination wavelength of the fixture needs to be changed. In this case, the protective mesh cover 1 and the light-transmitting cover 2 can be removed first, and then the filter plate 3 can be easily removed from the heat sink 6 by loosening the fixing screw 15 for replacement. Select a filter plate 3 with corresponding long transmittance characteristics, and then reconnect the new filter plate 3 by threading it with the fixing screw 15. This allows for quick operation, reduces downtime, and the solution allows for independent replacement of the filter plate 3 as needed without replacing the entire lighting fixture. Through the flexible wavelength adjustment function, the overall replacement cost of the device can be reduced, resource waste can be avoided, and economic efficiency can be improved.

[0066] The wavelength-tunable luminaire solution of this application adopts core components such as COB lamp beads 5, filter plate 3, heat sink 6 and protective housing, which has the function of flexibly adjusting spectral characteristics and can meet the lighting wavelength requirements of different working environments. The filter plate 3 is installed in the heat sink 6 through a detachable connection structure, which makes it easy for users to replace the filter according to actual needs, thereby adjusting the output spectral characteristics of the luminaire. This not only facilitates maintenance and operation, but also effectively reduces the overall cost of replacing the luminaire and improves the adaptability of the luminaire.

[0067] Furthermore, the efficient heat dissipation design of the heat sink 6 ensures the stable operation of the light source module and avoids malfunctions caused by overheating. At the same time, the explosion-proof structure of the protective shell enhances the safety of the lamp and makes it suitable for high-risk environments. Meanwhile, the use of multiple waterproof structures (such as the first waterproof ring 4, the second waterproof ring 7, and the waterproof plug 12) ensures the normal operation of the lamp in humid or harsh environments. This application optimizes the installation, disassembly, and replacement process of the light source module and filter element, which not only enhances the flexibility and functionality of the lamp but also reduces maintenance costs and improves overall economic efficiency.

[0068] 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 wavelength-tunable luminaire, characterized by: include: Light source module; A filter element is disposed in the optical path output direction of the light source module to change the spectral characteristics of the output light; Heat sink (6) is used to install the light source module and provide a heat dissipation channel; The protective housing is detachably connected to the heat sink (6) and is used to encapsulate the light source module and the filter element and provide explosion-proof protection. The filter element is installed inside the heat sink (6) via a detachable connection structure.

2. The wavelength-tunable luminaire of claim 1, wherein: The detachable connection structure includes a fixing screw (15) and a plurality of fixing posts (14) provided on the inner bottom wall of the radiator (6). The filter element is placed on the plurality of fixing posts (14). The fixing screw (15) passes through the filter element and is inserted into the fixing post (14) and is threadedly connected to the fixing post (14).

3. The wavelength-tunable luminaire of claim 2, wherein: It also includes a first waterproof ring (4), which is fixed inside the radiator (6) by a concave-convex structure. The first waterproof ring (4) is arranged along the circumference of the filter element and abuts and seals against the filter element. The light source module is located inside the first waterproof ring (4).

4. The wavelength-tunable luminaire of claim 3, wherein: The concave-convex structure includes a convex ring (17) on the inner bottom wall of the radiator (6) and an annular groove (18) on the first waterproof ring (4). The annular groove (18) is located on the side of the first waterproof ring (4) away from the filter element, and the convex ring (17) is inserted into and abuts against the annular groove (18).

5. The wavelength-tunable luminaire of claim 1, wherein: The light source module is fixed inside the heat sink (6) by mounting screws (16).

6. The wavelength-tunable luminaire of claim 1, wherein: The protective housing includes a light-transmitting cover (2) and a protective mesh cover (1). The light-transmitting cover (2) is threadedly connected to the heat sink (6), and the light-transmitting cover (2) covers the outside of the light source module and the filter element. The protective mesh cover (1) is fitted outside the light-transmitting cover (2), and the protective mesh cover (1) is fixed to the outer wall of the heat sink (6) by connecting screws (19).

7. The wavelength-adjustable luminaire according to claim 6, characterized in that: It also includes a base (11) and a power module. The base (11) is located on the side of the heat sink (6) away from the light-transmitting cover (2). The base (11) is detachably connected to the heat sink (6). The power module is housed in the base (11) and is electrically connected to the light source module.

8. The wavelength-adjustable luminaire according to claim 7, characterized in that: The power module includes a power supply (8) and an emergency battery (10), and the power supply (8) is electrically connected to the light source module and the emergency battery (10).

9. The wavelength-adjustable luminaire according to claim 7, characterized in that: The radiator (6) and the base (11) are sealed by a second waterproof ring (7).

10. The wavelength-adjustable luminaire according to claim 7, characterized in that: The base (11) is provided with a number of waterproof plugs (12), and the waterproof plugs (12) are fixed on the base (11) by threaded plugs (13).

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