A smart explosion-proof LED light

Abstract

This invention relates to the field of explosion-proof lights, specifically providing an intelligent explosion-proof LED light. The explosion-proof light includes a lamp housing, an active heat dissipation unit, a light-emitting assembly, and a transparent cover. The light-emitting assembly is located inside the lamp housing and includes an LED light-emitting board and a main control board. The transparent cover is sealed to the lamp housing. The active heat dissipation unit is electrically connected to the main control board, which integrates a temperature sensor. An air inlet is provided at the bottom of the air guide housing away from the lamp housing. A sealing plate is slidably connected to the inner side of the air guide housing along its axis. The sealing plate has evenly distributed communicating holes offset from the air inlet. A control unit drives the sealing plate to move a preset distance when the active heat dissipation unit is working, and presses the sealing plate tightly against the bottom of the air guide housing when not working. This invention can reduce dust adhesion and lower maintenance frequency.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof lights, and more particularly to an intelligent explosion-proof LED light. Background Technology

[0002] In hazardous environments such as coal mines, oil fields, and chemical plants, where flammable and explosive materials are present, LED lighting fixtures are widely used due to their energy-saving, long lifespan, and high reliability. However, LED lighting fixtures generate heat during operation. If this heat cannot be dissipated effectively and promptly, the junction temperature of the LED chip will rise, affecting its luminous efficacy, lifespan, and even posing safety hazards. Therefore, the heat dissipation design of explosion-proof LED lights is crucial.

[0003] In existing technologies, explosion-proof LED lights often employ passive heat dissipation (such as large-area heat sinks) or a combination of passive and active heat dissipation (such as built-in fans). For explosion-proof LED lights with higher power or higher heat dissipation requirements, forced air cooling with a fan is a highly efficient heat dissipation method that can significantly improve heat dissipation efficiency and ensure that the LED lights operate at a suitable temperature.

[0004] However, in dusty industrial environments, even when the fan is not running, dust still adheres to the explosion-proof lamp housing and the fan, causing a decrease in heat dissipation efficiency. When the fan is running, dust adheres even faster. For explosion-proof lamps in dusty environments, frequent cleaning is necessary to maintain heat dissipation efficiency. To solve the above problems, this application proposes an intelligent explosion-proof LED lamp. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent explosion-proof LED light to solve the problem that explosion-proof lights with active heat dissipation need to be cleaned frequently in dusty environments.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An intelligent explosion-proof LED light includes a lamp housing, an active heat dissipation unit, a light-emitting assembly, and a transparent cover. The lamp housing contains a light-emitting cavity. The light-emitting assembly includes an LED light-emitting board fixed within the light-emitting cavity and a main control board that controls the operation of the LED light-emitting board. A temperature sensor is integrated on the main control board. The transparent cover is sealed to the opening of the light-emitting cavity. The active heat dissipation unit is electrically connected to the main control board. When the main control board detects that the temperature exceeds a threshold, it controls the active heat dissipation unit to operate. The active heat dissipation unit is further covered by a ductwork shell, which is a cylindrical shape with an opening at one end. An air inlet is provided at the bottom of the housing away from the lamp housing. A central air outlet is provided on the side of the air guide housing near the lamp housing. A sealing plate is slidably connected to the inner side of the air guide housing along its axis. The sealing plate has evenly distributed connecting holes, which are offset from the air inlet. A control component is provided on the air guide housing. When the active heat dissipation unit is working, the control component drives the sealing plate to move a preset distance, so that the sealing plate detaches from the bottom of the air guide housing to form an air circulation channel. When the active heat dissipation unit stops working, the control component presses the sealing plate tightly against the bottom of the air guide housing to prevent external dust from entering the interior of the air guide housing.

[0008] Furthermore, the lamp housing is composed of an isolated lower housing and an upper housing, the LED light-emitting panel is located inside the lower housing, and the active heat dissipation unit includes:

[0009] A cooling motor is fixedly connected to the inside of the upper housing, and the rotating shaft of the cooling motor is an insulated ceramic shaft;

[0010] The heat dissipation blade assembly is connected to the output shaft of the heat dissipation motor via a drive connection.

[0011] Furthermore, the control component includes a connector, a first spring, and a plug. The connector is fixedly connected to the output shaft of the cooling motor and has a spiral groove on its outer surface. The cooling blade assembly is sleeved on the outside of the connector, and the interior of the cooling blade assembly has a protrusion structure that matches the spiral groove. The first spring is located between the upper housing and the cooling blade assembly. The plug is fixed to the end of the cooling blade assembly facing away from the cooling motor, and a connecting post is provided on the plug. The sealing plate is slidably connected to the connecting post.

[0012] Furthermore, multiple spiral grooves are provided, and the multiple spiral grooves are evenly distributed circumferentially along the outer surface of the connector.

[0013] Furthermore, the end of the connector is provided with a limiting head, and the end of the limiting head is connected to a limiting nut by a thread. The limiting nut is a cylindrical shape with an opening at one end. The center of the heat dissipation blade assembly has a hole-like structure, and the inner side of the center hole of the heat dissipation blade assembly is provided with a partition structure with small holes. The partition structure is sleeved on the limiting head.

[0014] Furthermore, the outer edge of the sealing plate is provided with a limiting notch, and the inner wall of the air guide shell is provided with a limiting block. The limiting block is locked in the limiting notch to restrict the circumferential rotation of the sealing plate.

[0015] Furthermore, the control component also includes a second spring, and a spring groove is provided at the bottom of the air guide housing. The second spring is located inside the spring groove and between the bottom of the air guide housing and the sealing plate.

[0016] Furthermore, the outer wall of the upper housing is provided with a second heat dissipation fin, and the inner wall of the air guide shell is in contact with the second heat dissipation fin.

[0017] Furthermore, a windshield is provided on the outside of the air guide housing. The windshield has a horn-shaped structure and is fitted around the outer periphery of the air guide housing. The windshield covers the area where the bottom air outlet and the middle air outlet are located on the air guide housing, and the larger end of the windshield is close to the lamp housing.

[0018] Furthermore, the central air outlet is an oblique hole, and the air blown out from the central air outlet blows towards the lamp housing.

[0019] In summary, the present invention has the following advantages compared with the prior art:

[0020] The intelligent explosion-proof LED light disclosed in this invention uses a guide shell covering the active heat dissipation unit and a sealing plate and control components located inside the guide shell. When the active heat dissipation unit is working, the guide shell opens the communication channel between the guide shell and the outside world, and when the active heat dissipation unit is not working, the communication channel between the guide shell and the outside world is closed, thereby preventing dust accumulation and reducing the maintenance frequency. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the intelligent explosion-proof LED light disclosed in an embodiment of the present invention.

[0022] Figure 2 This is an exploded view of the intelligent explosion-proof LED light disclosed in an embodiment of the present invention.

[0023] Figure 3 This is a front view of the intelligent explosion-proof LED light disclosed in an embodiment of the present invention.

[0024] Figure 4 for Figure 3 Sectional view of AA.

[0025] Figure 5 This is a schematic diagram of the air guide shell in the intelligent explosion-proof LED light disclosed in an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the sealing plate in the intelligent explosion-proof LED lamp disclosed in an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the connector structure in the intelligent explosion-proof LED light disclosed in an embodiment of the present invention.

[0028] Figure label:

[0029] 100. Lamp housing; 110. Lower housing; 111. First heat dissipation fin; 112. Partition plate; 113. Heat-conducting sleeve; 114. Light-emitting cavity; 120. Upper housing; 121. Second heat dissipation fin; 130. First sealing ring; 140. Second sealing ring; 200. Active heat dissipation unit; 210. Heat dissipation motor; 220. Heat dissipation blade assembly; 230. Connector; 231. Spiral groove; 232. Limiting head; 240. Limiting nut; 250. Plug ; 251, Connecting column; 260, Pressure plate; 270, Motor sealing plate; 280, First spring; 310, LED light-emitting board; 320, Main control board; 400, Transparent cover plate; 500, Air guide shell; 501, Bottom air outlet; 502, Middle air outlet; 503, Spring groove; 504, Limiting block; 510, Windshield; 505, Air inlet; 520, Sealing plate; 521, Connecting hole; 522, Limiting notch; 530, Second spring. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Figures 1 to 4As shown, an embodiment of the present invention provides an intelligent explosion-proof LED light, which includes a lamp housing 100, an active heat dissipation unit 200, a light-emitting group, and a transparent cover plate 400. The lamp housing 100 contains a light-emitting cavity 114. The light-emitting group includes an LED light-emitting board 310 fixed in the light-emitting cavity 114 and a main control board 320 that controls the operation of the LED light-emitting board 310. A temperature sensor is integrated on the main control board 320. The transparent cover plate 400 is sealed to the opening of the light-emitting cavity 114. The active heat dissipation unit 200 is electrically connected to the main control board 320. When the main control board 320 detects that the temperature exceeds a threshold, it controls the active heat dissipation unit 200 to operate. The active heat dissipation unit 200 is also covered by a wind-guiding shell 500, which is a cylindrical shape with an opening at one end. An air inlet 505 is provided on the bottom of the air guide housing 500 away from the lamp housing 100. A central air outlet 502 is provided on the side of the air guide housing 500 near the lamp housing 100. A sealing plate 520 is slidably connected to the inner side of the air guide housing 500 along its axis. The sealing plate 520 has evenly distributed connecting holes 521. The connecting holes 521 and the air inlet 505 are staggered. A control component is provided on the air guide housing 500. When the active heat dissipation unit 200 is working, the control component drives the sealing plate 520 to move a preset distance, so that the sealing plate 520 is detached from the bottom of the air guide housing 500 to form an air circulation channel. When the active heat dissipation unit 200 stops working, the control component presses the sealing plate 520 tightly against the bottom of the air guide housing 500 to prevent external dust from entering the interior of the air guide housing 500.

[0032] In this embodiment, when the intelligent explosion-proof LED lamp is working normally, the LED light-emitting board 310 operates under the control of the main control board 320. At the same time, the temperature sensor on the main control board 320 monitors the internal temperature of the lamp body in real time. When the temperature is lower than the threshold, the active heat dissipation unit 200 is not activated, and the control component presses the sealing plate 520 tightly against the bottom of the air guide shell 500. The connecting hole 521 on the sealing plate 520 is misaligned with the air inlet 505 at the bottom of the air guide shell 500. The air inlet 505 is sealed by the sealing plate 520, and an isolation space is formed inside the air guide shell 500 to prevent external dust from entering.

[0033] When the LED light-emitting board 310 generates heat during operation, causing its internal temperature to rise, and the temperature sensor of the main control board 320 detects that the temperature exceeds a threshold, the main control board 320 controls the active heat dissipation unit 200 to start. At the same time, the controller drives the sealing plate 520 to slide a preset distance away from the bottom along the axis of the air guide shell 500, so that the sealing plate 520 is detached from the bottom of the air guide shell 500. The sealing plate 520 and the bottom of the air guide shell 500 have a certain space, forming an air circulation channel consisting of an air inlet 505, a connecting hole 521 between the sealing plate 520 and the bottom of the air guide shell 500, and the active heat dissipation unit 200. The operation of the active heat dissipation unit 200 drives air to flow along the channel. Outside air enters the interior of the air guide shell 500 through the channel and is discharged from the central air outlet 502. During the air flow, the air flows over the surface of the lamp housing 100, thereby improving the heat dissipation efficiency.

[0034] Once the temperature sensor detects that the temperature has dropped below the threshold, the main control board 320 controls the active heat dissipation unit 200 to stop working, and the control component then drives the sealing plate 520 to slide to the bottom and press it again, thereby blocking air from entering.

[0035] The intelligent explosion-proof LED light disclosed in this embodiment of the invention comprises an air guide shell 500 covering the active heat dissipation unit 200, a sealing plate 520 located inside the air guide shell 500, and control components.

[0036] Specifically, in this embodiment, the lamp housing 100 includes a lower housing 110 and an upper housing 120. The lower housing 110 is the lamp body outer shell, made of high-strength aluminum alloy material, and its surface is anodized, providing good corrosion resistance and heat dissipation performance. The light-emitting cavity 114 is located inside the lower housing 110. The upper housing 120 is disposed on the side of the lower housing 110 opposite to the light-emitting cavity 114. The upper housing 120 is a cylindrical structure with a large opening at one end and a small opening at the other. The large opening of the upper housing 120 is fixedly connected to the lower housing 110 by bolts, and its small opening is fixedly connected to the active heat dissipation unit 200 by bolts. A sealed cavity is formed inside the upper housing 120, which, together with the active heat dissipation unit 200, constitutes an explosion-proof cavity, effectively blocking the internal electric arc from the external flammable environment. The upper housing 120 is a straight cylindrical structure with a smooth inner wall and is treated with an anti-static coating, further improving safety performance.

[0037] A first sealing ring 130 is provided at the connection between the lower housing 110 and the upper housing 120. The first sealing ring 130 is a high-temperature resistant rubber gasket, which is fastened between the contact surfaces of the lower housing 110 and the upper housing 120. It effectively prevents external dust and moisture from entering the lamp body. At the same time, it has excellent anti-aging and anti-compression properties and maintains elastic sealing effect in environments ranging from -40℃ to +85℃, ensuring the long-term stable operation of the explosion-proof structure.

[0038] Preferably, the opening of the light-emitting cavity 114 is provided with a two-stage annular stepped structure. The inner step is provided with a second sealing ring 140, which is a high-temperature resistant rubber sealing gasket. The edge of the transparent cover plate 400 is fixed to the outer step by adhesive bonding. The second sealing ring 140 is pressed between the transparent cover plate 400 and the lower housing 110 to ensure the sealing reliability between the transparent cover plate 400 and the lamp body, effectively preventing external flammable materials from entering the lamp body and causing danger. The transparent cover plate 400 is made of high-strength tempered glass with a light transmittance of not less than 95%. The surface is coated with an anti-reflective coating to improve light output efficiency and has high temperature resistance and impact resistance characteristics. It can maintain its integrity and functionality in extreme environments, further enhancing the overall safety level and service life of the lamp.

[0039] Preferably, the lower housing 110 is provided with a first heat dissipation fin 111 on its outer side, and the upper housing 120 is provided with a second heat dissipation fin 121 on its outer side. The first heat dissipation fin 111 and the second heat dissipation fin 121 are symmetrically distributed sheet structures, both of which are integrally formed with the main body to improve structural strength and heat conduction efficiency. The first heat dissipation fin 111 and the second heat dissipation fin 121 extend axially to form an efficient heat dissipation channel, enhance air convection, effectively reduce the internal temperature of the lamp body, and extend the service life of the light source and electronic components.

[0040] Preferably, a heat-conducting sleeve 113 is also provided on the side of the lower housing 110 away from the light-emitting cavity 114. The outer diameter of the heat-conducting sleeve 113 is the same as the inner diameter of the upper housing 120. The heat-conducting sleeve 113 is in close contact with the inner wall of the upper housing 120, so as to realize the heat transfer from the lower housing 110 to the upper housing 120. The high thermal conductivity of the metal material is used to quickly dissipate the heat and avoid local overheating that may cause safety hazards.

[0041] Preferably, thermal grease is also coated between the thermally conductive sleeve 113 and the upper housing 120 to further reduce the interface thermal resistance and improve heat dissipation efficiency.

[0042] Preferably, a partition 112 is provided between the heat-conducting sleeve 113 and the light-emitting cavity 114. The partition 112 is used to isolate the internal space of the upper housing 120 and the lower housing 110. The LED light-emitting board 310 is fixedly connected to the partition 112. The connecting wire between the LED light-emitting board 310 and the main control board 320 passes through the upper housing 120. A sealing sleeve is provided between the upper housing 120 and the connecting wire.

[0043] The light-emitting group is existing technology, the LED light-emitting board 310 is a light source structure in existing technology, and the main control board 320 is a driving circuit module that integrates constant current control and overvoltage protection functions to ensure stable operation of the light source under voltage fluctuations. The main control board 320 is fixedly connected to the inside of the upper housing 120, and the LED light-emitting board 310 and the main control board 320 are electrically connected by wires to realize power transmission and signal interaction, ensuring rapid start-up response and stable brightness of the light source.

[0044] The active heat dissipation unit 200 includes a heat dissipation motor 210 and a heat dissipation blade assembly 220. The heat dissipation motor 210 is fixedly connected to the interior of the upper housing 120. In this embodiment, the heat dissipation motor 210 is fixedly connected to the upper housing 120 via a pressure plate 260. The pressure plate 260 is a sheet-like structure and is fixedly connected to the upper housing 120 via bolts. A motor sealing sheet 270, which is a high-temperature resistant rubber sheet, is also provided between the pressure plate 260 and the upper housing 120. The edge of the sealing plate 270 is clamped between the upper housing 120 and the pressure plate 260 to form a sealed dustproof structure, effectively preventing external combustible particles from entering. The cooling motor 210 is fixedly connected to the pressure plate 260 by screws. The middle position of the motor sealing plate 270 is clamped between the cooling motor 210 and the pressure plate 260. The output shaft of the cooling motor 210 passes through the central hole of the pressure plate 260 and the motor sealing plate 270, and is connected to the cooling blade assembly 220 for transmission, realizing stable power output transmission. The cooling blade assembly 220 is a fan impeller.

[0045] In this embodiment, the control component includes a connector 230 and a first spring 280, such as Figure 4 and Figure 7As shown, the connector 230 is fixedly connected to the output shaft of the cooling motor 210. A spiral groove 231 is provided on the outer surface of the connector 230. The cooling blade assembly 220 is sleeved on the outside of the connector 230 and can slide along the axis of the connector 230. The interior of the cooling blade assembly 220 has a protruding structure that matches the spiral groove 231. The first spring 280 is located between the pressure plate 260 and the cooling blade assembly 220. A plug 250 is fixed to the end of the cooling blade assembly 220 facing away from the cooling motor 210. A connecting post 251 is provided on the plug 250. The sealing plate 520 is slidably connected to the connecting post 251. When the cooling motor 210 is not working, the first spring... When the spring 280 is in the released state, the first spring 280 presses the sealing plate 520 against the bottom of the air guide housing 500 through the heat dissipation blade assembly 220 and the plug 250. When the heat dissipation motor 210 is energized and rotates, the heat dissipation motor 210 drives the connector 230 to rotate synchronously through the output shaft. Under the action of inertia, the protrusion structure in the heat dissipation blade assembly 220 and the spiral groove 231 undergo radial relative displacement, pushing the heat dissipation blade assembly 220 to move along the axis of the connector 230 in a direction away from the bottom of the air guide housing 500. The heat dissipation blade assembly 220 compresses the first spring 280 and drives the plug 250 to move synchronously, so that the sealing plate 520 is released from the pressed state with the bottom of the air guide housing 500, thereby allowing airflow to pass through and realizing the automatic opening of the channel. When the cooling motor 210 is de-energized, its rotation stops, the first spring 280 returns to its elastic deformation, pushing the cooling blade assembly 220 and the plug 250 back to their original positions, pressing the sealing plate 520 firmly against the bottom of the air guide housing 500, sealing the airflow channel, and achieving automatic closure upon power failure. This structure achieves synchronous on / off response through mechanical linkage, requiring no additional control signals, thus improving system reliability and safety. It is particularly suitable for thermal management needs in explosion-proof and high-temperature environments, effectively preventing the intrusion of external dust while ensuring heat dissipation efficiency.

[0046] Specifically, in this embodiment, multiple spiral grooves 231 are provided, and these spiral grooves 231 are evenly distributed circumferentially along the outer surface of the connector 230. The protrusion structure inside the heat dissipation blade assembly 220 is a spherical protrusion, which is slidably connected to the spiral grooves 231. During rotation, the spherical protrusion slides along the inclined surface of the spiral groove 231, generating an axial component force to push the heat dissipation blade assembly 220 to move axially, ensuring smooth power transmission and rapid response. The first spring 280 is sleeved on the connector 230, with its two ends abutting between the pressure plate 260 and the heat dissipation blade assembly 220, respectively, using elastic restoring force to control the reciprocating motion.

[0047] Specifically, the connector 230 has a cylindrical structure with a spiral guide groove 231 on its outer surface. This design allows the spherical protrusion to move smoothly along the guide groove during rotation, effectively reducing starting resistance and improving axial propulsion efficiency. The connector 230 is connected to the output shaft of the cooling motor 210 via a keyway to ensure non-slip power transmission. The end of the connector 230 is provided with a limiting head 232, which has an external thread. The end of the limiting head 232 is connected to a limiting nut 240 via a thread. The limiting nut 240 is a cylindrical shape with an opening at one end. The inner side of the limiting nut 240 has an internal thread that matches the external thread of the limiting head 232. After screwing, the nut is pressed against the end of the limiting head 232 by its end face. The cooling blade assembly 220 is sleeved on the limiting head 232 and the connector 230.

[0048] The heat dissipation blade assembly 220 has a hole-like structure at its center. A partition structure with small holes is provided inside the central hole of the heat dissipation blade assembly 220. The partition structure is sleeved on the limiting head 232, so that the limiting nut 240 can play a limiting role.

[0049] The plug 250 has a cylindrical structure and is fixed to the inner circumference of the heat dissipation blade assembly 220 by an interference fit. It moves axially synchronously with the heat dissipation blade assembly 220. A connecting post 251 is provided at one end away from the heat dissipation blade assembly 220. The connecting post 251 has a cylindrical structure, and the central hole of the sealing plate 520 is sleeved on the connecting post 251 with a clearance fit.

[0050] like Figure 5 and Figure 6 As shown, the sealing plate 520 has a disc structure. The outer edge of the sealing plate 520 is slidably connected to the inner wall of the air guide shell 500. The outer edge of the sealing plate 520 is provided with a limiting notch 522, which is a square notch. The inner wall of the air guide shell 500 is provided with a limiting block 504. The limiting block 504 is stuck in the limiting notch 522, restricting the circumferential rotation of the sealing plate 520 so that it can only move axially.

[0051] The air guide housing 500 is fixed to the upper housing 120 with screws, forming a sealed cavity between the air guide housing 500 and the upper housing 120 to accommodate the heat dissipation blade assembly 220 and the connector 230. This sealed cavity effectively isolates external dust and improves the stability of the mechanism's operation. The bottom air outlet 501 is located near the end of the air guide housing 500 close to the upper housing 120. Air entering the air guide housing 500 flows through the upper housing 120 and is discharged from the bottom air outlet 501, forming a stable heat dissipation structure.

[0052] Preferably, the sealing plate 520 is also provided with a central air outlet 502 near the middle position. The central air outlet 502 is an oblique hole. The air blown out from the central air outlet 502 blows towards the surface of the lower housing 110, accelerating the cooling of the surface of the lower housing 110 and effectively reducing the operating temperature.

[0053] Preferably, a second spring 530 is provided between the sealing plate 520 and the bottom of the air guide housing 500. The bottom of the air guide housing 500 is provided with a spring groove 503. The second spring 530 is located inside the spring groove 503 and is sleeved on the connecting post 251. The second spring 530 is used to avoid the connecting post 251. When the cooling motor 210 rotates, the second spring 530 provides a force for the sealing plate 520 to detach from the bottom of the air guide housing 500.

[0054] Preferably, a wind deflector 510 is further provided on the outside of the air guide housing 500. The wind deflector 510 has a trumpet-shaped structure and is fitted around the outer periphery of the air guide housing 500. The wind deflector 510 covers the areas where the bottom air outlet 501 and the middle air outlet 502 are located. The larger end of the wind deflector 510 is close to the lower housing 110, guiding the airflow to concentrate and blow on the surface of the lower housing 110, thereby improving heat dissipation efficiency. The inner wall of the wind deflector 510 has a smooth transition to avoid dust accumulation and enhance long-term operational stability.

[0055] Preferably, the inner wall of the air guide shell 500 is in contact with the second heat dissipation fin 121, so that heat can be transferred to the air guide shell 500 through the second heat dissipation fin 121. When the active heat dissipation unit 200 is not working, the air guide shell 500 can effectively provide a heat dissipation path to conduct the heat accumulated inside to the external environment.

[0056] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0057] It should be understood that although the terms first, second, third, etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of this invention, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent explosion-proof LED light, comprising a lamp housing, an active heat dissipation unit, a light-emitting group, and a transparent cover plate, wherein the light-emitting group is located inside the lamp housing, the light-emitting group includes an LED light-emitting board and a main control board, the transparent cover plate is sealed to the lamp housing, and the active heat dissipation unit is electrically connected to the main control board, characterized in that... The main control board integrates a temperature sensor to control the active heat dissipation unit when the temperature exceeds a threshold. The explosion-proof LED light also includes: The air guide shell covering the active heat dissipation unit has an air inlet at the bottom away from the lamp housing. A sealing plate is slidably connected to the inner side of the air guide shell along its axis. The sealing plate has evenly distributed connecting holes that are offset from the air inlet. The control component drives the sealing plate to move a preset distance when the active heat dissipation unit is working; when the active heat dissipation unit is not working, the control component presses the sealing plate tightly against the bottom of the air guide housing. The lamp housing is composed of an isolated lower housing and an upper housing. The LED light-emitting board is located inside the lower housing. The active heat dissipation unit includes a heat dissipation motor and a heat dissipation blade assembly. The heat dissipation motor is fixedly connected to the inside of the upper housing. The rotating shaft of the heat dissipation motor is an insulated ceramic shaft. The output shaft of the heat dissipation motor is connected to the heat dissipation blade assembly. The control component includes a connector, a first spring, and a plug. The connector is fixedly connected to the output shaft of the cooling motor and has a spiral groove on its outer surface. The cooling blade assembly is sleeved on the outside of the connector and has a protrusion structure inside that matches the spiral groove. The first spring is located between the upper housing and the cooling blade assembly. The plug is fixed to the end of the cooling blade assembly away from the cooling motor and has a connecting post on it. The sealing plate is slidably connected to the connecting post.

2. The intelligent explosion-proof LED light according to claim 1, characterized in that, The spiral grooves are provided in multiple ways, and the multiple spiral grooves are evenly distributed circumferentially along the outer surface of the connector.

3. The intelligent explosion-proof LED light according to claim 2, characterized in that, The connector has a limiting head at one end, and the limiting head is connected to a limiting nut by a thread. The limiting nut is a cylindrical shape with an opening at one end. The center of the heat dissipation blade assembly has a hole-like structure, and a partition structure with small holes is provided inside the center hole of the heat dissipation blade assembly. The partition structure is sleeved on the limiting head.

4. The intelligent explosion-proof LED light according to claim 1, characterized in that, The sealing plate has a limiting notch on its outer edge, and the air guide shell has a limiting block on its inner wall. The limiting block is locked in the limiting notch to restrict the circumferential rotation of the sealing plate.

5. The intelligent explosion-proof LED light according to claim 1, characterized in that, The control component also includes: The second spring is located inside the spring groove at the bottom of the air guide housing and between the bottom of the air guide housing and the sealing plate.

6. The intelligent explosion-proof LED light according to claim 1, characterized in that, The outer wall of the upper housing is provided with a second heat dissipation fin, and the inner wall of the air guide shell is in contact with the second heat dissipation fin.

7. The intelligent explosion-proof LED light according to any one of claims 1-6, characterized in that, The air guide housing is also provided with a wind shield, which has a horn-shaped structure. The wind shield is fitted around the outer periphery of the air guide housing and covers the area where the bottom air outlet and the middle air outlet are located on the air guide housing. The larger part of the wind shield is close to the lamp housing.

8. The intelligent explosion-proof LED light according to claim 7, characterized in that, The central air outlet is an oblique hole, and the air blown out from the central air outlet blows towards the lamp housing.

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