Explosion-proof fire emergency evacuation lighting lamp

Abstract

The application discloses an explosion-proof fire emergency evacuation lighting lamp, and relates to the technical field of fire emergency lighting, which comprises a front lamp cover and a rear lamp cover, and an integrated inner cavity is formed between the front lamp cover and the rear lamp cover; the rear lamp cover is provided with a wiring cavity and a threading hole; a lamp cover plate is installed on the rear lamp cover and used for closing the wiring cavity; a control panel, two light-emitting assemblies and a lithium iron battery are arranged in the integrated inner cavity, and the control panel and the lithium iron battery are spaced apart through the wiring cavity; the end surface of the rear lamp cover opposite to the front lamp cover is arranged in an inclined surface, and the two light-emitting assemblies are both arranged in an inclined surface and do not extend out of the inclined surface. Through the combined design of the integrated inner cavity, the independent wiring cavity, the built-in inclined light-emitting assembly and the lithium iron battery, the fire emergency evacuation lighting lamp is simple in structure and convenient to assemble, and can better meet the use requirements of fire emergency lighting in the environment of explosive gas and dust.

Description

Technical Field

[0001] This invention relates to the field of fire emergency lighting technology, and in particular to an explosion-proof fire emergency evacuation lighting fixture. Background Technology

[0002] Fire emergency lighting fixtures are crucial facilities for ensuring safe evacuation and are widely used in industrial plants, commercial buildings, municipal transportation facilities, and other locations. In the event of a fire or other emergency, power is typically lost, and emergency lighting fixtures must be activated immediately to provide safe evacuation illumination.

[0003] In current technology, most common lighting fixtures adopt an independent dual-lamp head design, with the lamp heads protruding from the main body to achieve fire emergency lighting. However, these fixtures have complex structures and obtrusive shapes, numerous manufacturing parts, and cumbersome assembly processes, increasing production and maintenance costs. Furthermore, the main body of these fixtures is typically made of sheet metal or plastic, resulting in low protection levels and insufficient impact resistance, antistatic properties, waterproofing, and resistance to high and low temperatures, failing to meet the safety requirements for hazardous explosive gas and dust environments.

[0004] Therefore, how to provide an explosion-proof fire emergency evacuation lighting fixture that simplifies the assembly process and improves its explosion-proof performance has become an urgent technical problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide an explosion-proof fire emergency evacuation lighting fixture, which aims to solve the problems mentioned in the background art.

[0006] To achieve this objective, the present invention adopts the following technical solution: An explosion-proof fire emergency evacuation lighting fixture includes a detachably connected front cover and a rear cover, wherein the front cover and the rear cover are enclosed to form an integrated inner cavity, the rear cover is provided with a wiring cavity independently provided from the integrated inner cavity, and the rear cover is provided with a wire hole that communicates with the integrated inner cavity and the wiring cavity respectively. The lamp rear cover is equipped with a lamp cover plate for sealing the wiring cavity. The integrated inner cavity is provided with a control board, two light-emitting components and a lithium iron phosphate battery that are electrically connected to each other. The control board and the lithium iron phosphate battery are distributed at intervals through the wiring cavity. The end face of the lamp front cover opposite to the lamp rear cover is arranged at an angle, and both light-emitting components are inclined and do not extend out of the angle.

[0007] Optionally, each of the light-emitting components includes a light-emitting plate electrically connected to the control board, a plurality of light-emitting lamps are mounted on the light-emitting plate, an optical lens plate is mounted on the lamp front cover, the light-emitting plate and the optical lens plate are fastened together, and the optical lens plate and the lamp front cover are integrally formed by a secondary injection molding process to waterproof the optical lens plate.

[0008] Optionally, the optical lens plate has a plurality of light-amplifying protrusions on the side near the light-emitting lamp, each light-amplifying protrusion having a receiving groove, each light-amplifying protrusion corresponding to a light-emitting lamp, and the light-emitting lamp being partially embedded in the receiving groove; The light-emitting surface of the lamp faces the light-emitting direction of the optical lens plate, and the light-expanding protrusion and the receiving groove together constrain the light of the lamp into a directional beam emitted along the normal direction of the optical lens plate.

[0009] Optionally, the plurality of light-emitting lamps and the plurality of light-amplifying protrusions are arranged in at least one circular layout, so that light is uniformly diffused within the optical lens plate along the radial direction of the light-amplifying protrusions.

[0010] Optionally, the optical lens plate is further provided with a positioning post on the side near the light source. The positioning post includes a first post and a second post. The outer diameter of the first post is larger than the outer diameter of the second post. The light source plate is provided with a positioning hole that is inserted and matched with the second post.

[0011] Optionally, the side of the light-emitting plate near the optical lens plate abuts against the end face of the first column near the second column, and is spaced apart from the end face of the light-emitting plate near the light-amplifying protrusion. The gap between the light-emitting plate and the end face of the light-amplifying protrusion forms a thermal expansion buffer gap. When the light-emitting lamp is continuously lit and generates heat, the thermal deformation of the light-emitting plate is absorbed by the thermal expansion buffer gap.

[0012] Optionally, the integrated inner cavity is provided with a display component for displaying the working status of the lamp, the display component is electrically connected to the control board, and the lamp front cover is provided with a light-transmitting display area corresponding to the display component; The display assembly includes a display panel electrically connected to the control board, and at least one indicator light is mounted on the display panel.

[0013] Optionally, both the lamp rear cover and the lamp cover plate are provided with mounting grooves, and a sealing ring is fitted inside each mounting groove; One of the sealing rings abuts between the front cover and the rear cover of the lamp, and the other sealing ring abuts between the rear cover and the lamp cover plate; the two sealing rings are arranged in a ring and their sizes are different.

[0014] Optionally, the sealing ring is provided with three sealing grooves spaced apart in the mounting groove, the end of the sealing ring away from the mounting groove is provided with an adjacent first convex ring and a mating groove, and the sealing ring is provided with a second convex ring located between two adjacent sealing grooves; The lamp front cover is provided with a first protruding ring, and the lamp rear cover is provided with a second protruding ring. The first protruding ring and the second protruding ring are respectively inserted into the corresponding abutment groove to achieve multiple seals for the lamp.

[0015] Optionally, the lamp rear cover is provided with a mounting bracket, a mounting nut, and a mounting support; when the lamp is installed using the mounting bracket, it forms a wall-mounted lamp; when the lamp is installed using the mounting nut, it forms a pendant lamp; and when the lamp is installed using the mounting support, it forms a bracket lamp.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By detachably connecting the front cover and rear cover of the lamp and enclosing them to form an integrated inner cavity, the control board, two light-emitting components, and lithium iron phosphate battery can be centrally located in the same main structure. This avoids the problems of a large number of parts, complex assembly, and abrupt appearance caused by the traditional independent dual-lamp head protruding structure, thereby simplifying the overall structure of the lamp, reducing manufacturing and assembly costs, and improving the integration of the lamp's appearance.

[0017] 2. By providing a wiring cavity independently of the integrated inner cavity within the lamp's rear cover, and sealing this cavity with a lamp cover plate, the external wiring area is separated from the internal electrical component installation area. This structure facilitates on-site wiring, inspection, and maintenance. Wiring operations do not require opening the lamp's main body cavity, reducing interference with internal components such as the control board, lithium iron phosphate battery, and light-emitting components. This improves the lamp's sealing, safety, and ease of maintenance. The presence of through-holes connecting to both the integrated inner cavity and the wiring cavity also facilitates the rational arrangement of internal electrical connections, improving the overall neatness of the wiring.

[0018] 3. Since the control board and lithium iron phosphate battery are distributed at intervals through the wiring cavity, a certain degree of isolation can be formed in the structural space, which reduces the adverse effects on adjacent components when the control board heats up, or when there is an electrical fault or battery abnormality. This is conducive to improving the internal electrical safety and operational reliability of the lamp.

[0019] 4. The front cover, rear cover, and lamp cover plate are all made of plastic shell. The optical lens plate and the front cover are integrally molded using a two-stage injection molding process, which eliminates the need for glue and sealing rings when connecting the optical lens plate and the front cover. This waterproofs the optical lens plate and improves its assembly efficiency and waterproof performance.

[0020] 5. Due to the multiple raised designs of the sealing ring, multiple water ingress channels are formed, while achieving dual waterproof protection of positive compression and lateral compression, making the IP68 dustproof and waterproof rating of the lamp more reliable.

[0021] 6. The lighting fixtures have three installation methods: wall-mounted, pendant-mounted, and adjustable angle, which can meet the installation needs of various scenarios. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0023] Figure 1 This is one of the three-dimensional structural schematic diagrams of an explosion-proof fire emergency evacuation lighting fixture disclosed in an embodiment of the present invention; Figure 2 This is a second three-dimensional structural schematic diagram of an explosion-proof fire emergency evacuation lighting fixture disclosed in an embodiment of the present invention; Figure 3 This is a schematic diagram of the exploded structure of an explosion-proof fire emergency evacuation lighting fixture disclosed in an embodiment of the present invention; Figure 4 This is a partial structural schematic diagram of an explosion-proof fire emergency evacuation lighting fixture disclosed in an embodiment of the present invention; Figure 5 This is a front view structural diagram of an explosion-proof fire emergency evacuation lighting fixture disclosed in an embodiment of the present invention; Figure 6 for Figure 5 A schematic diagram of the AA cross-sectional structure; Figure 7 This is a schematic diagram of the structure of the light-emitting panel and the light-emitting lamp in an explosion-proof fire emergency evacuation lighting fixture disclosed in an embodiment of the present invention; Figure 8 This is a three-dimensional structural diagram of an optical lens plate in an explosion-proof fire emergency evacuation lighting fixture disclosed in an embodiment of the present invention; Figure 9 This is a half-sectional structural diagram of a sealing ring in an explosion-proof fire emergency evacuation lighting fixture disclosed in an embodiment of the present invention; Figure 10 for Figure 9 A magnified structural diagram at point B; Figure 11 This is a three-dimensional structural diagram of a wall-mounted lamp disclosed in an embodiment of the present invention; Figure 12 This is a three-dimensional structural diagram of a pendant lamp disclosed in an embodiment of the present invention; Figure 13This is a three-dimensional structural diagram of a bracket-type lamp disclosed in an embodiment of the present invention.

[0024] Illustration: 10. Lamp front cover; 11. Bevel; 12. Light-transmitting display area; 13. First convex ring; 20. Lamp back cover; 21. Wiring cavity; 22. Wire hole; 23. Second convex ring; 30. Lamp cover; 40. Control panel; 50. Light-emitting component; 51. Light-emitting plate; 511. Positioning hole; 52. Light-emitting lamp; 53. Optical lens plate; 531. Light-expanding protrusion; 5311. Receiving groove; 532. Positioning post; 5321. First post; 5322. Second post; 60. Lithium iron phosphate battery; 61. Pressure plate; 70. Display component; 71. Display panel; 72. Indicator light; 80. Mounting slot; 90. Sealing ring; 91. Sealing groove; 92. First raised ring; 93. Anchoring groove; 94. Second raised ring; 100. Install the mounting bracket; 200. Install the nuts; 300. Install the bracket. Detailed Implementation

[0025] To make the inventive objectives, features, and advantages of this application more apparent and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments.

[0026] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] This invention provides an explosion-proof fire emergency evacuation lighting fixture, such as... Figures 1 to 13As shown, the explosion-proof fire emergency evacuation lighting fixture includes a front cover 10, a rear cover 20, a cover plate 30, a control board 40, two light-emitting components 50, and a lithium iron phosphate battery 60. The front cover 10 and rear cover 20 are assembled to form an integrated inner cavity. The front cover 10, rear cover 20, and cover plate 30 are all made of plastic. The control board 40, the two light-emitting components 50, and the lithium iron phosphate battery 60 are all installed within the integrated inner cavity and electrically connected via wires. This allows the fixture to charge, test, and standby under normal power supply conditions. When the external power supply is disconnected, the lithium iron phosphate battery 60 can power the light-emitting components 50, thus providing emergency lighting. The front cover 10 and rear cover 20 can be made of die-cast aluminum alloy to improve the fixture's housing strength, impact resistance, corrosion resistance, and heat dissipation. The front cover 10 and rear cover 20 can be detachably connected via screws, bolts, or a snap-fit ​​structure. Since the pressure plate 61 is fastened to the lamp back cover 20 by screws, the lithium iron phosphate battery 60 is fastened and installed in the integrated inner cavity.

[0028] Specifically, the lamp rear cover 20 is provided with a wiring cavity 21, which is independent of the integrated inner cavity. The wiring cavity 21 is used to accommodate external power cords, terminals, or wiring connectors. A wire-passing hole 22 is formed on the lamp rear cover 20, which communicates with both the integrated inner cavity and the wiring cavity 21, allowing external wiring to enter the integrated inner cavity through the wiring cavity 21 and connect electrically to the control board 40. With the wiring cavity 21 and the integrated inner cavity separated, on-site installers can complete wiring operations by simply opening the lamp cover 30, without needing to open the main inner cavity formed by the lamp front cover 10 and the lamp rear cover 20. This reduces the impact on the control board 40, the light-emitting component 50, and the lithium iron phosphate battery 60, and improves installation and maintenance convenience.

[0029] A lamp cover 30 is installed on the lamp rear cover 20 to enclose the wiring cavity 21. The lamp cover 30 can be connected to the lamp rear cover 20 with screws, forming a relatively closed structure for the wiring cavity 21, thereby improving the waterproof, dustproof, and explosion-proof safety performance of the wiring area. Since the lamp cover 30 is detachable, it facilitates later maintenance, replacement of wiring terminals, or maintenance of wiring connections. A control board 40 is installed within the integrated cavity. The control board 40 is used for external power detection, charging control, battery protection, emergency switching, and driving the light-emitting component 50. A lithium iron phosphate battery 60 is installed within the integrated cavity. The lithium iron phosphate battery 60 is a rechargeable backup battery used to power fire emergency lighting fixtures after a mains power outage. The control board 40 and the lithium iron phosphate battery 60 are spaced apart through the wiring cavity 21, creating spatial isolation between them. This helps reduce the adverse effects of electrical component heating or abnormal conditions on the lithium iron phosphate battery 60 and also facilitates internal space arrangement and wire organization.

[0030] The end face of the lamp front cover 10 opposite to the lamp rear cover 20 is arranged at an angle 11. Both light-emitting components 50 are installed at an angle along the angle, so that the light emission direction matches the angle of the outer end face of the lamp front cover 10. This angled arrangement allows the light to be directed toward the predetermined evacuation area without the need for protruding double lamp heads, improving the coverage and illumination effect of emergency lighting. Neither of the two light-emitting components 50 protrudes from the angle 11, so that the light-emitting components 50 are hidden inside the lamp front cover 10, thereby reducing the possibility of damage to the light-emitting components 50 from external collisions and making the shape of the lamp more flat and compact.

[0031] During assembly, first, fix the control board 40 and the lithium iron phosphate battery 60 to their corresponding mounting positions on the lamp rear cover 20. Then, fix the two light-emitting components 50 to their corresponding mounting positions on the lamp front cover 10, and complete the electrical connection between the control board 40, the lithium iron phosphate battery 60, and the light-emitting components 50. Next, assemble the lamp front cover 10 and the lamp rear cover 20 together and tighten them with screws to form an integrated inner cavity. Then, introduce the external power cord through the wiring cavity 21 and connect it to the control board 40 through the wire hole 22. Finally, install the lamp cover plate 30 on the lamp rear cover 20 to seal the wiring cavity 21. After assembly, the lamp fixture forms an integrated structure, with the light-emitting components 50 not protruding and the wiring cavity 21 independently sealed. This lamp fixture is suitable for industrial plants, commercial buildings, municipal transportation facilities, and places with the risk of explosive gases or dust.

[0032] like Figures 3 to 8 As shown, each light-emitting component 50 includes a light-emitting plate 51, which is electrically connected to the control board 40. The light-emitting plate 51 can be an aluminum-based circuit board or other circuit boards with good thermal conductivity. Multiple light-emitting lamps 52 are installed at intervals on the light-emitting plate 51. The light-emitting lamps 52 can use LED beads, and the multiple light-emitting lamps 52 are arranged in a predetermined manner to meet the brightness and illumination range required for fire emergency evacuation lighting. The control board 40 can control the light-emitting lamps 52 to turn on or off according to the external power supply status. When the external power supply is interrupted, the control board 40 switches to power supply by the lithium iron phosphate battery 60, so that the light-emitting lamps 52 continue to emit light.

[0033] An optical lens plate 53 is installed at the lamp front cover 10. The optical lens plate 53 and the lamp front cover 10 are integrally molded using a secondary injection molding process, eliminating the need for glue and sealing rings to connect the optical lens plate 53 and the lamp front cover 10. This waterproofs the optical lens plate 53 and improves the assembly efficiency and waterproof performance of the lamp. The optical lens plate 53 can be made of tempered glass, transparent polycarbonate, or other impact-resistant and high / low temperature resistant transparent materials. The optical lens plate 53 is installed at the inclined surface 11 to allow the light generated by the lamp 52 to be emitted outwards. The light-emitting plate 51 is securely connected to the optical lens plate 53, forming a relatively stable integrated light-emitting module consisting of the lamp 52, the light-emitting plate 51, and the optical lens plate 53. The light-emitting plate 51 and the optical lens plate 53 can be fixed together using screws, clips, pressure fittings, or adhesive structures to ensure the relative positional stability between the lamp 52 and the optical lens plate 53, preventing light path misalignment due to vibration during transportation, installation, or use.

[0034] In a further implementation, such as Figures 6 to 8 As shown, the optical lens plate 53 has multiple light-amplifying protrusions 531 on the side near the light-emitting lamp 52, with each protrusion corresponding to one of the light-emitting lamps 52. Each protrusion 531 has a receiving groove 5311, the opening of which faces the corresponding light-emitting lamp 52, and a portion of the light-emitting lamp 52 extends into the corresponding receiving groove 5311. Through this structural design, a relatively stable cooperation relationship can be formed between the light-emitting lamp 52 and the light-amplifying protrusion 531, allowing the light emitted by the light-emitting lamp 52 to enter the area of ​​the light-amplifying protrusion 531 more concentratedly, reducing ineffective scattering of light around the light-emitting lamp 52.

[0035] Specifically, the light-expanding protrusion 531 can be integrally formed with the optical lens plate 53, or it can be formed through subsequent processing. The light-expanding protrusion 531 can be hemispherical, frustum-shaped, arc-shaped, or other structures that can adjust the direction of light propagation. The shape of the receiving groove 5311 can be adapted to the outer contour of the light-emitting lamp 52, so that the light-emitting lamp 52 can be partially embedded in the receiving groove 5311 without affecting the normal light emission and heat dissipation of the light-emitting lamp 52. The inner wall of the receiving groove 5311 can serve as the light-incident surface, and the outer surface of the light-expanding protrusion 531 can serve as the refraction or light-guiding surface, so that part of the divergent light emitted by the light-emitting lamp 52 is constrained by the receiving groove 5311 and the light-expanding protrusion 531 and emitted along or close to the normal direction of the optical lens plate 53. The light-emitting surface of the light-emitting lamp 52 is arranged facing the light-emitting direction of the optical lens plate 53, and the light-expanding protrusion 531 and the receiving groove 5311 together form a directional light-emitting structure. After the light generated by the light-emitting lamp 52 enters the receiving groove 5311, the light is refracted, focused, or its direction is adjusted by the light-expanding protrusion 531, so that the light is constrained into a directional beam that exits along the normal direction of the optical lens plate 53. Thus, even when the light-emitting component 50 is installed at an angle, the light can still be projected outward in a predetermined direction, improving the illumination distance and effective lighting intensity of emergency lighting, and reducing the loss of light into the housing or non-target areas.

[0036] By fastening the light-emitting plate 51 to the optical lens plate 53 and embedding the light-emitting lamp 52 part into the corresponding receiving groove 5311, the positioning accuracy between the light-emitting lamp 52 and the optical lens plate 53 can be improved, making the light emission direction of multiple light-emitting lamps 52 more consistent. This structure not only helps to improve the uniformity of lighting and directional illumination effect of the lamp, but also reduces the dependence of the traditional protruding lamp head structure on the adjustment of the illumination angle. This allows the light-emitting component 50 to still obtain a good evacuation lighting effect without protruding from the inclined surface 11, thereby further improving the compactness, protective performance and explosion-proof environment applicability of the lamp structure.

[0037] like Figure 7As shown, multiple light-emitting lamps 52 are arranged in at least one circular pattern on the light-emitting plate 51, and multiple light-amplifying protrusions 531 are arranged in at least one circular pattern on the optical lens plate 53 in a manner corresponding to the light-emitting lamps 52. The circular pattern can be a single-ring pattern or a multi-ring concentric circle pattern consisting of an inner ring and an outer ring. The multiple light-emitting lamps 52 are spaced apart along the circumferential direction, so that the light emitted by each light-emitting lamp 52 can enter the corresponding light-amplifying protrusion 531 from different circumferential positions. After the light generated by the light-emitting lamps 52 enters the corresponding receiving groove 5311, it is guided by the light-amplifying protrusion 531. Part of the light is emitted along the thickness direction of the optical lens plate 53, and the other part of the light diffuses inside the optical lens plate 53 along the radial direction of the light-amplifying protrusion 531. Since the multiple light-amplifying protrusions 531 are arranged in a circular pattern, the radial diffusion direction of each light-amplifying protrusion 531 can be evenly distributed along the circumferential direction, thereby making the light distribution inside the optical lens plate 53 more uniform and reducing local bright spots or dark areas.

[0038] In practical applications, the light-emitting lamps 52 and the light-diffusing protrusions 531 can be evenly arranged around the central area of ​​the optical lens plate 53. The spacing between adjacent light-emitting lamps 52 can be equal or adaptively adjusted according to the lighting brightness requirements. Through the circular layout, the light emitted by multiple light-emitting lamps 52 can form a uniform circumferential diffusion effect within the optical lens plate 53, making the light emitted from the optical lens plate 53 more uniform and softer, and ensuring the consistency of lighting within the evacuation lighting area. By adopting the above structure, the light-emitting component 50 can still achieve a large light-emitting range and good light-emitting uniformity while maintaining an embedded installation. Compared with the simple linear arrangement of multiple light-emitting lamps 52, the circular layout allows the light to diffuse circumferentially and radially around the center of the optical lens plate 53, which is beneficial to improving the overall lighting effect of the luminaire, avoiding light concentration in local areas, and thus improving the reliability and visual comfort of fire emergency evacuation lighting.

[0039] like Figures 6 to 8 As shown, the optical lens plate 53 has a positioning post 532 for fixing the light-emitting plate 51 on the side near the light-emitting lamp 52. The positioning post 532 includes a first post 5321 and a second post 5322, wherein the outer diameter of the first post 5321 is larger than the outer diameter of the second post 5322. The light-emitting plate 51 has a corresponding positioning hole 511 that engages with the second post 5322, thereby achieving accurate positioning and stable fixing of the light-emitting plate 51.

[0040] During assembly, the side of the light-emitting plate 51 closest to the optical lens plate 53 is tightly pressed against the end face of the first pillar 5321 closest to the second pillar 5322, while a certain gap is maintained between the light-emitting plate 51 and the end face of the light-amplifying protrusion 531. This gap forms a thermal expansion buffer gap, which absorbs the thermal expansion deformation generated when the light-emitting lamp 52 is continuously lit, avoiding direct collision or deformation damage between the light-emitting plate 51 and the optical lens plate 53 or the light-amplifying protrusion 531. Through the above structural design, the light-emitting plate 51 can ensure stable positioning while also taking into account the thermal expansion buffer function, thereby improving the reliability and lifespan of the light-emitting component 50 in long-term use and ensuring the stability and uniformity of light output.

[0041] like Figure 3 and Figure 6 As shown, an integrated inner cavity is provided with a display component 70 for lighting up and displaying the working status of the lamp. The display component 70 is electrically connected to the control board 40. A light-transmitting display area 12 is provided on the lamp front cover 10 at the position corresponding to the display component 70, so that the light emitted by the display component 70 can pass through the lamp front cover 10 and be displayed outward, so that the user can observe the operating status of the lamp.

[0042] Specifically, the display component 70 includes a display panel 71 and at least one indicator light 72 mounted on the display panel 71. The display panel 71 is electrically connected to the control board 40. The indicator light 72 can be an LED indicator light, and the number of indicator lights 72 can be one, two, or more, with different indicator lights 72 corresponding to different operating states. For example, the indicator light 72 can be used to display information such as mains power supply status, battery charging status, fault status, emergency start status, or normal standby status. The control board 40 can control the corresponding indicator light 72 to light up, turn off, or flash according to the current operating status of the lamp, thereby providing a direct indication of the lamp's operating status.

[0043] The light-transmitting display area 12 can be formed using transparent material, semi-transparent material, or a light-transmitting window structure. It can be integrally molded with the lamp front cover 10 or installed on the lamp front cover 10 as an independent light-transmitting component. The light-transmitting display area 12 ensures that the light emitted by the display lamp 72 is clearly visible while maintaining the overall sealing performance of the lamp. The display panel 71 can be fixedly installed at the corresponding position on the lamp front cover 10 or lamp rear cover 20 and arranged correspondingly to the light-transmitting display area 12 to ensure the display effect. Through the display component 70 and the light-transmitting display area 12, users can intuitively understand the operating status of the lamp without disassembling it, facilitating daily inspection, maintenance, and troubleshooting, and improving the convenience and reliability of fire emergency lighting fixtures.

[0044] like Figure 6As shown, both the lamp rear cover 20 and the lamp cover plate 30 are provided with mounting grooves 80, and each mounting groove 80 is fitted with a sealing ring 90. The two sealing rings 90 are used for sealing connections in different parts. One sealing ring 90 is located between the lamp front cover 10 and the lamp rear cover 20 to seal the integrated inner cavity; the other sealing ring 90 is located between the lamp rear cover 20 and the lamp cover plate 30 to seal the wiring cavity 21. Both sealing rings 90 are arranged in a ring shape, and their dimensions are set to different specifications according to the structural dimensions of the corresponding mounting parts to adapt to the sealing requirements of the lamp body and the wiring cavity 21.

[0045] Specifically, the mounting groove 80 can be continuously arranged along the circumference of the lamp rear cover 20 and the lamp cover plate 30, so that the sealing ring 90 can be stably embedded in the mounting groove 80, avoiding displacement during assembly. After the lamp front cover 10 and the lamp rear cover 20 are assembled, one of the sealing rings 90 is pressed between the two, thereby forming a sealing structure for the integrated inner cavity; after the lamp cover plate 30 is installed on the lamp rear cover 20, the other sealing ring 90 is pressed between the lamp rear cover 20 and the lamp cover plate 30, thereby forming a sealing structure for the connecting cavity 21. Through the above-mentioned double sealing structure design, external moisture, dust or explosive gases can be effectively prevented from entering the lamp, improving the waterproof, dustproof and explosion-proof performance of the lamp.

[0046] In a further implementation, such as Figure 9 and Figure 10 As shown, the sealing ring 90 has three sealing grooves 91 spaced apart within the mounting groove 80. These multiple sealing grooves 91 are distributed circumferentially around the sealing ring 90, creating multiple sealing contact areas when the sealing ring 90 is under pressure, thereby improving the sealing effect. At the end of the sealing ring 90 furthest from the mounting groove 80, there is an adjacent first convex ring 92 and a retaining groove 93. The sealing ring 90 also has a second convex ring 94 located between two adjacent sealing grooves 91. The first convex ring 92 and the second convex ring 94 can undergo localized elastic deformation after the sealing ring 90 is under pressure, improving the fit between the sealing ring 90 and the mounting groove 80. The sealing ring 90 can be made of silicone rubber, fluororubber, or other elastic sealing materials that are resistant to high and low temperatures and aging.

[0047] Specifically, a first protruding ring 13 is provided on the front cover 10, and a second protruding ring 23 is provided on the rear cover 20. The first protruding ring 13 is inserted into the corresponding sealing groove 93 on the sealing ring 90, and the second protruding ring 23 is inserted into the corresponding sealing groove 93 on the sealing ring 90. When the front cover 10, the rear cover 20, and the lamp cover plate 30 are assembled and locked, the first protruding ring 13 and the second protruding ring 23 are pressed into the corresponding sealing grooves 93, respectively, so that the sealing ring 90 produces a radial and axial bidirectional pressing effect, thereby forming a multi-layer sealing structure. By adopting the above structural design, the sealing ring 90 can not only form a stable and reliable sealing effect after assembly, but also adapt to the dimensional changes caused by thermal expansion and contraction of the housing and external vibration during long-term use of the lamp, reducing the risk of seal failure. This structure is beneficial to improving the overall protection level and explosion-proof safety performance of the lamp, making the lamp suitable for fire emergency lighting locations with high humidity, high dust, and explosive gas environments.

[0048] like Figures 11 to 13 As shown, the lamp rear cover 20 is equipped with a mounting bracket 100, a mounting nut 200, and a mounting support 300, allowing the lamp to be installed in different ways according to different usage environments, thereby improving the applicability and installation flexibility of the lamp. Specifically, the mounting bracket 100 can be fixedly installed on the back or side of the lamp rear cover 20. The mounting bracket 100 has mounting holes or a hook structure to fix the lamp to the wall surface by means of screws, expansion bolts, or hooks. When installed using the mounting bracket 100, the lamp forms a wall-mounted structure, suitable for installation on industrial plant walls, evacuation route walls, or building facades. Wall-mounted installation allows the lamp to be placed close to the mounting surface, thereby reducing space occupation and improving the stability of the lamp after installation. The bottom of the wall-mounted bracket has a process hole for airtightness inspection during production. After the airtightness inspection is completed and the assembly is OK, the self-tapping screws are fixed in place, and then glue is applied for sealing. This ensures the consistency of the IP68 waterproof performance of the lamps from the factory without damaging the appearance of the lamps.

[0049] Specifically, the mounting nut 200 is installed on the lamp rear cover 20. The mounting nut 200 has an internal thread connection structure for threaded connection with the hanging pipe fitting. When installed using the mounting nut 200, the lamp forms a hanging pipe structure, and the connecting cable can pass through the mounting nut 200. During installation, the lamp can be suspended from the top mounting position via the hanging pipe, allowing the lamp to be installed on the roof of a factory building, the top of a tunnel, or in a high space. The hanging pipe installation not only increases the installation height of the lamp but also allows the installation position of the lamp to be adjusted according to the site environment to meet the fire emergency lighting needs of different areas.

[0050] Furthermore, the mounting bracket 300 is installed on the lamp rear cover 20. The mounting bracket 300 can be an adjustable-angle support structure. The mounting bracket 300 can be fixed to the mounting base surface by bolts or connectors, and allows the lamp to be adjusted in angle within a certain range. Specifically, the lamp rear cover 20 has bracket holes on both sides for accommodating nuts. When using the mounting bracket 300 for installation, the nuts are first placed in the bracket holes, and then the mounting bracket 300 and the lamp rear cover 20 are fastened together by bolts and nuts, forming a bracket-type structure for the lamp. Bracket-type installation is suitable for equipment platforms, mechanical areas, or places where the illumination direction needs to be adjusted, allowing the lamp to adjust the light output direction according to actual lighting needs, improving the coverage and illumination effect of emergency lighting.

[0051] In summary, by integrating the mounting bracket 100, mounting nut 200, and mounting bracket 300 onto the same lighting fixture structure, the lighting fixture can flexibly switch between wall-mounted, hanging, and bracket-mounted installation methods according to different installation environments. This eliminates the need to design different lighting fixture structures for different installation requirements, thereby reducing product development and production costs and increasing the applicability of the lighting fixture in industrial plants, municipal transportation facilities, and hazardous explosive gas or dust environments.

[0052] In the normal power supply state, the explosion-proof fire emergency evacuation lighting fixture disclosed in this embodiment of the invention is supplied with external power through the wiring cavity 21 and electrically connected to the control board 40 through the wiring hole 22. The control board 40 detects the external power supply status, manages the charging of the lithium iron phosphate battery 60, and controls the light-emitting component 50 to be in standby or normal lighting state. When the external power supply is normal, the control board 40 controls the light-emitting component 50 to be in a closed state or a low-power operating state, while charging the lithium iron phosphate battery 60 to ensure that the backup power supply is fully charged. When the external power supply fails, experiences undervoltage, or an abnormal situation, the control board 40 automatically switches to the lithium iron phosphate battery 60 power supply mode, and the lithium iron phosphate battery 60 supplies power to the light-emitting component 50, so that multiple lights 52 are continuously lit, thereby realizing the fire emergency evacuation lighting function. In the normal power supply state, the control board 40 can perform low-power control of the light-emitting component 50 according to the operating status of the fixture. When the fixture is in standby state, the control board 40 controls the lights 52 to operate in low-power mode or shuts down some unnecessary circuits to reduce the overall standby power consumption. When the lights enter emergency lighting mode, the control board 40 drives the light lamp 52 to work according to the preset power output strategy, thereby reducing battery energy consumption while meeting the brightness requirements of fire evacuation lighting, thus extending the continuous power supply time of the lithium iron phosphate battery 60.

[0053] The light emitted by the lamp 52 enters the light-expanding protrusion 531 through the corresponding receiving groove 5311. The light-expanding protrusion 531 refracts, guides, and diffuses the light, causing it to exit along the normal direction of the optical lens plate 53, thereby improving light utilization and illumination uniformity. Because the light-emitting component 50 is arranged at an angle, it can direct the light towards a predetermined evacuation area without using a traditional protruding lamp head structure. Since the light-expanding protrusion 531 and the receiving groove 5311 form a directional light-guiding structure, the light generated by the lamp 52 can be concentrated and output along a predetermined direction, reducing ineffective light scattering and improving light utilization efficiency. Therefore, under the same lighting effect, the power requirement of the lamp 52 can be reduced, thus achieving energy-saving lighting. Simultaneously, because the light-emitting component 50 is embedded inside the lamp front cover 10 and does not protrude from the inclined surface 11, damage to the light-emitting component 50 caused by external collisions can be reduced, improving the overall structural strength and protective performance of the lamp. The front cover 10, rear cover 20, and cover plate 30 are connected by a sealing ring 90 to form a multi-seal structure, which can reduce the entry of external moisture, dust, or explosive gases into the lamp, thereby improving the lamp's waterproof, dustproof, and explosion-proof safety performance.

[0054] This invention utilizes a multi-layered sealing structure to seal the inner cavity of the lamp body and the wiring cavity 21, reducing the possibility of explosive gases or dust entering the lamp. Furthermore, the control board 40 and the lithium iron phosphate battery 60 are spaced apart, reducing the risk of localized heat concentration and mutual interference during electrical malfunctions. The light-emitting component 50 is embedded within the lamp body, reducing the risk of mechanical damage and electrical exposure from external collisions, thereby improving the lamp's safety in hazardous explosive gas and dust environments. Because the control board 40, light-emitting component 50, and lithium iron phosphate battery 60 are all housed within a relatively enclosed integrated cavity, and the wiring cavity 21 is independently located from the integrated cavity, direct contact between external explosive gases and internal electrical connection areas is reduced. When electrical sparks or localized high temperatures occur inside the lamp, the multi-layered sealing structure reduces the risk of internal energy propagating to the external hazardous environment, further enhancing the lamp's safety in explosive gas and dust environments.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An explosion-proof fire emergency evacuation lighting fixture, characterized in that, It includes a detachable lamp front cover (10) and a lamp rear cover (20), the lamp front cover (10) and the lamp rear cover (20) are enclosed to form an integrated inner cavity, the lamp rear cover (20) is provided with a wiring cavity (21) independently provided from the integrated inner cavity, and the lamp rear cover (20) is provided with a wire hole (22) that is connected to the integrated inner cavity and the wiring cavity (21) respectively. The lamp cover (20) is equipped with a lamp cover plate (30) for sealing the wiring cavity (21). The integrated inner cavity is provided with a control board (40), two light-emitting components (50) and a lithium iron phosphate battery (60) that are electrically connected to each other. The control board (40) and the lithium iron phosphate battery (60) are distributed at intervals through the wiring cavity (21). The end face of the lamp front cover (10) opposite to the lamp rear cover (20) is arranged on an inclined surface (11), and both light-emitting components (50) are inclined and do not extend out of the inclined surface (11).

2. The explosion-proof fire emergency evacuation lighting fixture according to claim 1, characterized in that, Each of the light-emitting components (50) includes a light-emitting plate (51) electrically connected to the control board (40), a plurality of light-emitting lamps (52) are mounted on the light-emitting plate (51), and an optical lens plate (53) is mounted on the lamp front cover (10). The light-emitting plate (51) and the optical lens plate (53) are fastened together. The optical lens plate (53) and the lamp front cover (10) are integrally formed by a secondary injection molding process to waterproof the optical lens plate (53).

3. The explosion-proof fire emergency evacuation lighting fixture according to claim 2, characterized in that, The optical lens plate (53) has a plurality of light-expanding protrusions (531) on the side near the light-emitting lamp (52). The light-expanding protrusions (531) have receiving grooves (5311). The light-expanding protrusions (531) correspond one-to-one with the light-emitting lamps (52). The light-emitting lamps (52) are partially embedded in the receiving grooves (5311). The light-emitting surface of the light-emitting lamp (52) faces the light-emitting direction of the optical lens plate (53). The light-expanding protrusion (531) and the receiving groove (5311) together constrain the light of the light-emitting lamp (52) into a directional beam emitted along the normal direction of the optical lens plate (53).

4. The explosion-proof fire emergency evacuation lighting fixture according to claim 3, characterized in that, The plurality of light-emitting lamps (52) and the plurality of light-expanding protrusions (531) are arranged in at least one circular layout, so that light is uniformly diffused in the optical lens plate (53) along the radial direction of the light-expanding protrusions (531).

5. The explosion-proof fire emergency evacuation lighting fixture according to claim 3, characterized in that, The optical lens plate (53) is provided with a positioning post (532) on the side near the light-emitting lamp (52). The positioning post (532) includes a first post (5321) and a second post (5322). The outer diameter of the first post (5321) is larger than the outer diameter of the second post (5322). The light-emitting plate (51) is provided with a positioning hole (511) that is inserted and matched with the second post (5322).

6. The explosion-proof fire emergency evacuation lighting fixture according to claim 5, characterized in that, The side of the light-emitting plate (51) near the optical lens plate (53) abuts against the end face of the first column (5321) near the second column (5322), and is spaced apart from the end face of the light-emitting plate (51) near the light-amplifying protrusion (531). The gap between the light-emitting plate (51) and the end face of the light-expanding protrusion (531) forms a thermal expansion buffer gap. When the light-emitting lamp (52) is continuously lit and generates heat, the thermal deformation of the light-emitting plate (51) is absorbed by the thermal expansion buffer gap.

7. The explosion-proof fire emergency evacuation lighting fixture according to any one of claims 1 to 6, characterized in that, The integrated inner cavity is provided with a display component (70) for lighting up and displaying the working status of the lamp. The display component (70) is electrically connected to the control board (40). The lamp front cover (10) is provided with a light-transmitting display area (12) corresponding to the display component (70). The display assembly (70) includes a display panel (71) electrically connected to the control board (40), and at least one indicator light (72) is mounted on the display panel (71).

8. The explosion-proof fire emergency evacuation lighting fixture according to claim 1, characterized in that, Both the lamp rear cover (20) and the lamp cover plate (30) are provided with mounting grooves (80), and each mounting groove (80) is fitted with a sealing ring (90). One of the sealing rings (90) abuts between the lamp front cover (10) and the lamp rear cover (20), and the other sealing ring (90) abuts between the lamp rear cover (20) and the lamp cover plate (30); the two sealing rings (90) are arranged in a ring and their sizes are different.

9. The explosion-proof fire emergency evacuation lighting fixture according to claim 8, characterized in that, The sealing ring (90) is provided with three sealing grooves (91) located in the mounting groove (80) at intervals. The end of the sealing ring (90) away from the mounting groove (80) is provided with an adjacent first convex ring (92) and a pressing groove (93). The sealing ring (90) is provided with a second convex ring (94) located between two adjacent sealing grooves (91). The lamp front cover (10) is provided with a first protruding ring (13), and the lamp rear cover (20) is provided with a second protruding ring (23). The first protruding ring (13) and the second protruding ring (23) are respectively inserted into the corresponding abutment groove (93) to achieve multiple sealing of the lamp.

10. The explosion-proof fire emergency evacuation lighting fixture according to claim 1, 8, or 9, characterized in that, The lamp rear cover (20) is provided with a mounting bracket (100), a mounting nut (200) and a mounting bracket (300); When the lamp is installed using the mounting bracket (100), it forms a wall-mounted lamp; when the lamp is installed using the mounting nut (200), it forms a pendant lamp; when the lamp is installed using the mounting bracket (300), it forms a bracket lamp.

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