Efficient heat dissipation structure for explosion-proof lamp

Abstract

The invention discloses an efficient heat dissipation structure for an explosion-proof lamp, and relates to the technical field of explosion-proof illumination. The efficient heat dissipation structure for the explosion-proof lamp comprises a shell, a heat dissipation plate and a heat dissipation plate, and the circuit board is arranged in the shell. The first blades are arranged in the shell, gas flow in the shell can be disturbed by means of the first blades, so that the speed of transferring heat in the shell to the heat dissipation section is increased, meanwhile, the second blades are suspended on the shell through magnetic force, and the heat dissipation efficiency is improved through a non-contact heat dissipation structure. The contradiction between the heat dissipation efficiency and the safety of a traditional explosion-proof lamp is effectively solved, external air is blown to the heat dissipation section through the second blades, so that the cooling effect of the heat dissipation section is accelerated, the heat dissipation efficiency of the shell is improved, compared with the prior art, the heat dissipation effect is higher, and when the lamp is in a working state for a long time, the service life of the lamp is prolonged. And heat generated in the shell can be quickly dissipated, so that the temperature of a working environment of a light source, a sealing element or an electronic element is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of explosion-proof lighting, and in particular to a high-efficiency heat dissipation structure for explosion-proof lamps. Background Art

[0002] Explosion-proof lamps, also known as explosion-proof lighting equipment, are lighting devices specially designed for flammable and explosive environments. Their core principle is to prevent internal arcs, sparks or high temperatures from igniting external explosive gas mixtures through special structures. Explosion-proof lamps have two hanging methods: ceiling hanging and wall hanging.

[0003] Currently, despite various design measures in place for explosion-proof lamps, heat is often dissipated to the outside world through heat sink fins and thermally conductive materials due to the operating environment. The sealing design of explosion-proof lamps significantly affects their heat dissipation, making them susceptible to long-term operation in high-temperature environments. This can lead to shortened light source life, aging and damage to seals, or electronic component failure, ultimately reducing their explosion-proof performance. Currently, no effective solution has been proposed to address these issues. Summary of the Invention

[0004] Purpose of the invention: To provide an efficient heat dissipation structure for explosion-proof lamps to at least solve one of the problems existing in the above-mentioned prior art.

[0005] Technical solution: A high-efficiency heat dissipation structure for explosion-proof lamps, including: case; a light-transmitting plate, arranged at the bottom of the housing along a first direction; a circuit board, disposed in the housing along the first direction and located close to the light-transmitting plate; a plurality of light sources, distributed on the circuit board; a first blade rotatably mounted in the housing and configured to drive the gas to flow in the housing in a preset direction; a second blade suspended on the outside of the shell by magnetic force; a heat dissipation section, provided on the housing and located in the output direction of the second blade; and a ring plate rotatably disposed in the housing and magnetically connected to the second blade; Wherein, the first blade and the second blade are respectively arranged at designated positions of the shell according to different preset positions, so as to directionally circulate heat to the heat dissipation section.

[0006] Preferably, the heat dissipation section includes a heat dissipation tube vertically connected to the top of the shell, heat dissipation fins are distributed in an annular shape on the outer surface of the heat dissipation tube, spiral blades are constructed on the inner wall of the heat dissipation tube, and a tube body is connected through the spiral blades, and both ends of the tube body extend toward the heat dissipation tube and the light-transmitting plate respectively, and an annular plate for mounting a circuit board is connected to the bottom end of the tube body, and the outer side and the inner side of the first blade ring are respectively rotatably matched with the heat dissipation tube and the tube body, and an annular motor is installed on the outer side of the tube body, and its output end is connected to the first blade.

[0007] Preferably, a relay is provided in the tube body, the annular motor and the circuit board are electrically connected to the relay, an annular frame is connected to the tube body, a plurality of copper sheets are arranged in parallel at intervals on the annular frame, and the relay is fixed on the top of the copper sheet.

[0008] Preferably, the second blade is made of graphene, and the outer surface is coated with a metal film.

[0009] Preferably, the inner side and the outer side of the second blade ring are connected to the first magnetic ring and the second magnetic ring respectively, and a mounting bracket is provided on the outer side of the heat dissipation tube, on which the first annular magnet and the second annular magnet are mounted, and they magnetically repel the bottom sides of the first magnetic ring and the second magnetic ring respectively, and the bottom of the mounting bracket is provided with connecting blocks distributed in an annular manner, and is connected to the top of the shell through the connecting blocks.

[0010] Preferably, a connecting column is distributed in an annular manner at the bottom of the second blade, the bottom end of the connecting column is connected to a third magnetic ring, and an attraction ring is provided on the top of the ring plate, and the third magnetic ring is magnetically connected to the attraction ring.

[0011] Preferably, the attraction ring is formed by a plurality of magnets distributed in a ring shape; wherein, at least some of the magnets are magnetically repelled from the third magnetic ring, and their number is smaller than the magnets that are magnetically attracted to the third magnetic ring.

[0012] Preferably, the mounting frame includes: two concentrically arranged annular plates, the first annular magnet and the second annular magnet are respectively mounted on the two annular plates, each of the annular plates is connected with a first cylinder, and is respectively located on the inner side of the first magnetic ring and the outer side of the second magnetic ring, the two first cylinders are connected by a connecting plate, the first cylinder is rotatably mounted with the second cylinder through a bearing, and the second cylinder is provided with an annular buffer pad.

[0013] Preferably, the ring plate is connected to the outer side of the first blade ring.

[0014] Preferably, an annular cavity is constructed in the heat dissipation cylinder, a vibration sensor is installed in the annular cavity, and probes are distributed in an annular manner on the outside of the vibration sensor.

[0015] The beneficial effects of the present invention are as follows: The present invention provides a first blade in the shell, which can disturb the flow of gas inside the shell with the help of the first blade, thereby increasing the speed of heat transfer from the shell to the heat dissipation section. At the same time, the second blade in the present invention is suspended on the shell by magnetic force. Through the innovative non-contact heat dissipation structure, the contradiction between the heat dissipation efficiency and safety of traditional explosion-proof lamps is effectively solved. The second blade is used to blow external gas to the heat dissipation section, thereby accelerating the cooling effect of the heat dissipation section, thereby improving the heat dissipation efficiency of the shell. Compared with the existing technology, the present invention has a stronger heat dissipation effect. When it is in a long-term working state, the heat generated inside the shell can be quickly dissipated, thereby reducing the temperature of the working environment of the light source, seal or electronic component, and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of the high-efficiency heat dissipation structure for explosion-proof lamps of the present invention; Figure 2 This is a half-section schematic diagram of the high-efficiency heat dissipation structure for explosion-proof lamps of the present invention; Figure 3 The invention is an efficient heat dissipation structure for explosion-proof lamps Figure 2 Side view of Figure 4 The invention is an efficient heat dissipation structure for explosion-proof lamps Figure 3 A magnified view of point A; Figure 5 The invention is an efficient heat dissipation structure for explosion-proof lamps Figure 3 Enlarged view of point B; Figure 6 2. It is a structural schematic diagram of a mounting frame of a high-efficiency heat dissipation structure for explosion-proof lamps of the present invention; Figure 7 This is a half-section side view of the structure of the mounting frame of the high-efficiency heat dissipation structure for explosion-proof lamps of the present invention; Figure 8 The invention is an efficient heat dissipation structure for explosion-proof lamps Figure 7 Enlarged view of point C; Figure 9 This is a schematic structural diagram of the second blade of the high-efficiency heat dissipation structure for explosion-proof lamps of the present invention; Figure 10 Schematic diagram of the internal structure of the annular cavity of the high-efficiency heat dissipation structure for explosion-proof lamps of the present invention; and Figure 11 The invention relates to an intelligent control method for an efficient heat dissipation structure for explosion-proof lamps.

[0017] The accompanying drawings are: 1. Shell; 2. Translucent board; 3. Circuit board; 4. Light source; 5. Heat dissipation section; 501. Heat dissipation tube; 502. Heat dissipation fins; 503. Tube body; 504. Ring plate; 6. First leaf; 7. Second leaf; 8. Ring plate; 9. Ring motor; 10. Spiral blades; 11. Relay; 12. Ring rack; 13. Copper sheet; 14. First magnetic ring; 15. Second magnetic ring; 16. Mounting frame; 1601. Annular plate; 1602. First cylinder; 1603. Second cylinder; 1604. Annular cushion; 1605. Connecting plate; 17. First annular magnet; 18. Second annular magnet; 19. Connecting block; 20. Connecting column; 21. The third magnetic ring; 22. Attraction ring; 23. Annular cavity; 24. Vibration sensor; 25. Probe. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0020] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0021] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] like Figure 1-10 As shown, the present application relates to an efficient heat dissipation structure for explosion-proof lamps. The efficient heat dissipation structure for explosion-proof lamps comprises: a shell 1, which is a flameproof shell 1 with high strength and good sealing performance; The light-transmitting plate 2 is disposed at the bottom of the housing 1 along a first direction, thereby achieving a good assembly effect and ensuring a good light transmission effect. The first direction refers to the horizontal direction, which can also be the X-axis direction in the two coordinate systems. Preferably, the light-transmitting plate 2 is made of explosion-proof glass.

[0023] A circuit board 3 is disposed within the housing 1 along a first direction and is located near the light-transmitting plate 2. The circuit board 3 and the light-transmitting plate 2 are parallel to each other. A plurality of light sources 4 are distributed on the circuit board 3. The light sources 4 are LED lamp beads. The light sources 4 are located on the side of the circuit board 3 facing the light-transmitting plate 2. The housing 1 has a heat dissipation section 5. Heat generated by the light sources 4 within the housing 1 when emitting light can be exchanged with the outside world through the heat dissipation section 5 for dissipation. The first blade 6 is rotatably mounted in the housing 1 and is used to drive the gas to flow in the housing 1. By driving the first blade 6 to rotate, the gas inside the housing 1 can be disturbed, so that the high-temperature gas can fully contact the heat dissipation section 5 to facilitate heat transfer; The second blade 7 is suspended on the outside of the shell 1 by magnetic force. The structure here adopts the principle of magnetic suspension. The second blade 7 is non-contact with the shell 1. The heat dissipation section 5 is located in the output direction of the second blade 7. When the second blade 7 rotates, the external air can be blown to the heat dissipation section 5, thereby accelerating the cooling effect of the heat dissipation section 5. A ring plate 8 is rotated in the shell 1. The ring plate 8 is magnetically connected to the second blade 7. When the ring plate 8 rotates, the second blade 7 can be driven to rotate under the traction of the magnetic force; The first blades 6 and the second blades 7 are respectively arranged at designated positions of the housing 1 according to different preset positions, so as to directionally circulate heat to the heat dissipation section 5 .

[0024] It should be specifically noted that, since the second blade 7 is suspended outside the housing 1 by magnetic force, there is no mechanical contact between the two and no friction occurs with the housing 1 during rotation. That is, the second blade 7 does not generate heat or friction static electricity due to friction with the housing 1, making it suitable for flammable and explosive environments, thereby resolving the contradiction between heat dissipation efficiency and safety of traditional explosion-proof lamps and significantly improving the heat dissipation efficiency of the housing 1. The present invention sets a first blade 6 in the shell 1, and the first blade 6 can disturb the flow of gas inside the shell 1, thereby increasing the speed of heat transfer from the shell 1 to the heat dissipation section 5. At the same time, the second blade 7 in the present invention is suspended on the shell 1 by magnetic force. Through the innovative non-contact heat dissipation structure, the contradiction between the heat dissipation efficiency and safety of traditional explosion-proof lamps is effectively solved. The second blade 7 is used to blow external gas to the heat dissipation section 5, thereby accelerating the cooling effect of the heat dissipation section 5, thereby improving the heat dissipation efficiency of the shell 1. Compared with the prior art, the present invention has a stronger heat dissipation effect. When it is in a long-term working state, the heat generated inside the shell 1 can be quickly dissipated, thereby reducing the temperature of the working environment of the light source 4, seals or electronic components, and extending the service life.

[0025] like Figures 1-4As shown, the specific structure of the heat dissipation section 5 of the present application is disclosed. The heat dissipation section 5 includes: a heat dissipation tube 501 vertically connected to the top of the shell 1, the top of the heat dissipation tube 501 is sealed, and heat dissipation fins 502 are distributed in an annular shape on the outer surface of the heat dissipation tube 501. By increasing the contact area between the heat dissipation tube 501 and the outside air, its heat dissipation effect is improved. The inner wall of the heat dissipation tube 501 is constructed with spiral blades 10, and is connected to a tube body 503 through the spiral blades 10. The spiral blades 10 can extend the time for hot air to pass through the heat dissipation tube 501, so that it can fully contact the heat dissipation tube 501 and the spiral blades 10, thereby improving the heat exchange efficiency. The tube body 503 and the heat dissipation tube 501 are located on the same axis, and the two ends of the tube body 503 extend toward the heat dissipation tube 501 and the light-transmitting plate 2 respectively. It should be specifically explained here that there is still a distance between the two ends of the tube body 503 and the heat dissipation tube 501 and the light-transmitting plate 2, so that a circulation channel can be formed in the shell 1, that is, the shell 1 when the air enters the heat dissipation tube 501 for heat exchange, it will enter the tube body 503 from the top of the heat dissipation tube 501 and enter the shell 1 again through the tube body 503. The bottom of the tube body 503 is connected to a ring plate 504 for installing the circuit board 3. There is a gap between the circuit board 3 and the light-transmitting plate 2. When the cooled gas re-enters the shell 1 from the bottom of the tube body 503, the gas passes through the above-mentioned gap and takes away the heat of the lamp source on the circuit board 3. The outer side and the inner side of the ring of the first blade 6 respectively rotate with the heat dissipation tube 501 and the tube body 503. The first blade 6 is an annular blade. A ring motor 9 is installed on the outside of the tube body 503. The ring motor 9 is an explosion-proof motor, and its output end is connected to the first blade 6. With this design, when the ring motor 9 is working, the first blade 6 rotates, and the air in the shell 1 can be drawn into the heat dissipation tube 501. Cooperating with the above-mentioned circulation channel, the gas in the shell 1 can circulate, and the heat dissipation effect is better.

[0026] like Figure 2 and Figure 3As shown, a further technical solution of the present application for the tube body 503 is disclosed. A relay 11 is provided in the tube body 503. Some explosion-proof lamps are hung high, and their switches are realized by the relay 11. The annular motor 9 and the circuit board 3 are electrically connected to the relay 11. The annular motor 9 is connected in series in the circuit of the circuit board 3. The inner diameter of the tube body 503 is smaller than the distance between the heat dissipation tube 501 and the outer side of the tube body 503. That is, the gas flow rate in the tube body 503 is fast, and the gas passing through the heat dissipation tube 501 can fully cool the relay 11, making it less prone to aging and damage. The tube body 503 is connected with a ring frame 12. The annular frame 12 is close to the top of the tube body 503. A plurality of copper sheets 13 are arranged in parallel at intervals on the annular frame 12. The relay 11 is fixed on the top of the copper sheet 13. Even if it is not working in a high-temperature environment, the relay 11 will gradually age after long-term use, and the aged relay 11 will generate an arc. By adopting the above design, when the relay 11 generates an arc, the flowing air can blow the arc to the plurality of copper sheets 13, and the arc is divided by the plurality of copper sheets 13 to extinguish the arc, making it difficult to ignite the flammable and explosive gas in the explosion-proof lamp, thereby improving the service life and safety performance of the explosion-proof lamp.

[0027] like Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, a further technical solution for the second blade 7 of the present application is disclosed. The second blade 7 is made of graphene. Graphene has the advantage of low density, which reduces suspension energy consumption and is easy to drive to rotate. The outer surface is coated with a metal film, and the metal film is aluminum or copper with a thickness of 0.1 to 1 μm. It should be specifically explained that during the rotation of the first blade 6, friction with the air will easily generate static electricity. Static electricity is negative electricity, and the high conductivity of the metal film enables it to interact more efficiently with free positive and negative ions in the environment, that is, the negatively charged metal film surface will attract positive ions in the air, gradually neutralize the charge, and thus prevent the generation of static electricity.

[0028] like Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, the present application discloses a magnetic levitation scheme for the second blade 7, the first magnetic ring 14 and the second magnetic ring 15 are connected to the inner side and the outer side of the ring of the second blade 7 respectively, a mounting bracket 16 is provided on the outside of the heat dissipation tube 501, the mounting bracket 16 is located at the bottom of the heat dissipation fin 502, and a first annular magnet 17 and a second annular magnet 18 are installed on the mounting bracket 16. The two are concentric rings and magnetically repel the bottom sides of the first magnetic ring 14 and the second magnetic ring 15 respectively. The repulsive force generated by the first annular magnet 17 and the second annular magnet 18 on the first magnetic ring 14 and the second magnetic ring 15 can make the second blade 7 suspended, and the ring plate 8 magnetically connected to the second blade 7 can constrain the movement of the second blade 7 so that its suspended position is not easily deviated. Connecting blocks 19 are distributed in an annular manner at the bottom of the mounting bracket 16 and are connected to the top of the shell 1 through the connecting block 19. Under the action of the connecting block 19, there is a gap between the bottom of the second blade 7 and the shell 1. When the second blade 7 rotates, outside air can enter the bottom of the second blade 7 from the gap.

[0029] like Figure 2 、 Figure 4 、 Figure 5 and Figure 7 As shown, a further solution of the present application for the magnetic levitation of the second blade 7 is disclosed. A connecting column 20 is distributed in an annular manner at the bottom of the second blade 7. The bottom end of the connecting column 20 is connected to a third magnetic ring 21. An attraction ring 22 is provided on the top of the ring plate 8. The third magnetic ring 21 is magnetically connected to the attraction ring 22. It should be specifically explained here that the shell 1 is made of aluminum alloy and stainless steel. The part between the third magnetic ring 21 and the attraction ring 22 is made of stainless steel, which has good magnetic conductivity. With this design, when the ring plate 8 in the shell 1 rotates, the third magnetic ring 21 can be driven to drive the second blade 7 to rotate.

[0030] like Figure 2 、 Figure 3 、 Figure 5 and Figure 9As shown, a further solution of the present application for the attraction ring 22 is disclosed. The attraction ring 22 is composed of a plurality of magnets distributed in an annular shape. At least some of the magnets are magnetically repelled from the third magnetic ring 21, and their number is less than the magnets that are magnetically attracted to the third magnetic ring 21. Although the repulsive force generated by the repelling magnets can partially offset the attractive force of the attracting magnets, since there are more magnets that attract each other, the total attractive force is greater than the total repulsive force. When the attraction ring 22 is a whole, its attractive force to the third magnetic ring 21 cannot be adjusted. That is, under the repulsive force of the first annular magnet 17 and the second annular magnet 18, the suspension height of the second blade 7 is fixed. It is difficult to adjust according to actual needs. For example, when the explosion-proof lamp is irradiated downward, the second blade 7 is located above the first annular magnet 17 and the second annular magnet 18, and its gravity will be offset by the repulsive force generated by the first annular magnet 17 and the second annular magnet 18. When the explosion-proof lamp is irradiated upward, the second blade 7 is located below the first annular magnet 17 and the second annular magnet 18. At this time, the attraction of the attraction ring 22 needs to additionally overcome the gravity of the second blade 7. By adopting the above design, by controlling the ratio of the magnets on the ring plate 8 that are attracted to the third magnetic ring 21 and the magnets that repel the third magnetic ring 21, the attraction of the attraction ring 22 to the third magnetic ring 21 can be adjusted, thereby improving its applicability.

[0031] like Figure 2 、 Figure 3 、 Figure 5-Figure 8 As shown, the specific structure of the mounting frame 16 of the present application is disclosed. The mounting frame 16 includes: two concentrically arranged annular plates 1601, the first annular magnet 17 and the second annular magnet 18 are respectively mounted on the two annular plates 1601, the connecting block 19 is located at the bottom of the two annular plates 1601, and the annular plates 1601 are connected with the first cylinder 1602, and are respectively located on the inner side of the first magnetic ring 14 and the outer side of the second magnetic ring 15. The two first cylinders 1602 are connected by a connecting plate 1605, and the connecting plates 1605 are annularly distributed on the top of the two first cylinders 1602. The first cylinder 1602 is rotatably mounted with the second cylinder 1603 through a bearing to reduce the rotation resistance of the second cylinder 1603. An annular buffer pad 1604 is provided on the second cylinder 1603, and the annular buffer pad 1604 is a rubber pad. The two annular buffer pads 1604 are close to the first magnetic ring 14 and the second magnetic ring 15 respectively. When the device is in use, the second blade 7 is easily affected by external forces and may be offset. By adopting the above-mentioned design, when the second blade 7 is offset at a small angle, the first magnetic ring 14 and the second magnetic ring 15 on both sides of the second blade 7 will collide with the two annular buffer pads 1604 respectively. By adopting the design of two annular buffer pads 1604, on the one hand, the offset angle of the second blade 7 can be constrained, and on the other hand, the impact force can be buffered, thereby effectively preventing the second blade 7 from generating sparks due to rigid collision. When the two annular buffer pads 1604 are in contact with the first magnetic ring 14 and the second magnetic ring 15 respectively, the second cylinder 1603 drives the annular buffer pad 1604 to rotate together with the second blade 7, so that the first magnetic ring 14 and the second magnetic ring 15 are not easily stuck between the two annular buffer pads 1604.

[0032] like Figure 3 、 Figure 5 and Figure 9 As shown, a further solution of the present application for the linkage between the ring plate 8 and the first blade 6 is disclosed. The ring plate 8 is connected to the outer side of the ring of the first blade 6. When the ring of the first blade 6 rotates, the ring plate 8 can be driven to rotate synchronously. This design links the first blade 6 with the second blade 7, so that they can be driven to rotate by a ring motor 9, so that the two blades can work together. At the same time, by reducing the driving source, the safety hazards in the shell 1 can be reduced.

[0033] like Figure 2 、 Figure 3 、 Figure 5 and Figure 10 As shown, the present application discloses a further technical solution for how to reset the second blade 7 after the displacement. An annular cavity 23 is constructed in the heat dissipation tube 501. The annular cavity 23 and the second blade 7 are at the same height. A vibration sensor 24 is installed in the annular cavity 23. Specifically, it is a piezoelectric vibration sensor 24. It is electrically connected to the relay 11. The vibration sensor 24 can control the power supply and power loss of the relay 11. Probes 25 are distributed in an annular manner on the outer side of the vibration sensor 24. The first blade 6 will vibrate when rotating, but the vibration is mainly at a fixed frequency and the amplitude is relatively stable. When the second blade 7 deflects, the first magnetic ring 14 collides with the second magnetic ring 15 and the two annular buffer pads 1604, which is a transient impact. It should be specifically explained that since the annular buffer pad 1604 is used to cushion the collision, the vibration generated by the collision is also reduced. The present application expands the vibration amplitude by utilizing the resonance effect of the annular cavity 23. At the same time, the resonance amplification effect of the probe 25 is cooperated with to further improve the detection effect of the vibration sensor 24, so that it can detect the vibration force generated by the collision, and distinguish between the vibration and collision of the first blade 6. When a collision is detected, the relay 11 can be controlled to temporarily lose power. At this time, the annular motor 9 stops driving the first blade 6 to rotate, and the ring plate 8 returns to a stationary state, so that the second blade 7 with a small angle tilt can be restored to its original position by magnetic traction.

[0034] Furthermore, a number of sensors are provided on the circuit board, which can achieve good temperature detection effect, thus providing a basis and guarantee for subsequent precise temperature control.

[0035] like Figure 11 As shown, the present application also relates to an intelligent heat dissipation control method for explosion-proof lamps, comprising the following steps: S101, obtaining real-time temperature distribution data of the LED light source through a temperature sensor array distributed on the surface of the circuit board; S102, dynamically adjusting the rotation speed of the first heat dissipation blade according to the detected maximum temperature value, so that the rotation speed increases in a piecewise linear manner as the temperature increases; S103, monitoring the suspension gap of the second heat dissipation blade by a magnetic induction device, and maintaining a preset suspension gap by using an optimal control algorithm; S104: When high-frequency vibration characteristics are detected, execute multi-level safety response control.

[0036] According to an embodiment of the present invention, preferably, obtaining real-time temperature distribution data of the LED light source through a temperature sensor array distributed on the surface of the circuit board includes: 16 temperature measurement points are arranged equidistantly on the surface of the circuit board, and the three-dimensional temperature field is reconstructed through a machine learning model. When the temperature difference between adjacent temperature measurement points exceeds the set threshold, it is determined that there is a local overheating area.

[0037] According to an embodiment of the present invention, preferably, dynamically adjusting the rotation speed of the first heat dissipation blade according to the detected maximum temperature value so that the rotation speed increases piecewise linearly with increasing temperature includes: When the maximum temperature is in the first temperature range, the speed is increased at a fixed slope; When the maximum temperature enters the second temperature range, the speed growth slope increases by 30%-50%; When the speed fluctuation continues to exceed the allowable range, the robust control mode is automatically switched.

[0038] According to an embodiment of the present invention, preferably, monitoring the suspension gap of the second heat dissipation blade by a magnetic induction device and maintaining the preset suspension gap by an optimal control algorithm include: Calculate the gravity deviation compensation according to the tilt angle of the lamp and dynamically adjust the control current of the magnetic suspension system; When the ambient wind speed exceeds a preset value, the adaptive damping device is activated to suppress blade vibration.

[0039] According to an embodiment of the present invention, preferably, when a high-frequency vibration feature is detected, a multi-level safety response control is executed, including: Level 1: Reduce cooling system operating power in sub-second time; Level 2: When the accumulated vibration energy exceeds the safety threshold, a reverse suppression current is injected; Level 3: When the abnormality persists, the system switches to the backup power supply and starts the self-cleaning mechanism.

[0040] According to an embodiment of the present invention, preferably, when the abnormality persists, switching to a backup power supply and starting a self-cleaning mechanism include: Generate high-frequency mechanical vibration waves in the heat dissipation channel, and the frequency is automatically optimized within the preset range; The amplitude is adaptively adjusted according to the thickness of carbon deposits, and the maximum acceleration does not exceed the tolerance limit of the material.

[0041] According to an embodiment of the present invention, preferably, the arc suppression step is further included: The high-frequency noise component of the relay current is monitored in real time. When the arc characteristic signal is detected, the triple protection actions of current interruption, airflow acceleration and arc extinguishing electric field generation are performed synchronously.

[0042] According to an embodiment of the present invention, preferably, the method for generating the arc extinguishing electric field includes: A gradient conductive coating is provided on the inner wall of the heat dissipation duct to form an increasing surface potential along the airflow direction, thereby raising the arc restrike voltage to above a preset safety value.

[0043] According to an embodiment of the present invention, preferably, the energy efficiency optimization step is further included: An optimization objective function for light efficiency and energy consumption is established, and the optimal ratio of light source power to cooling system power is dynamically solved through an intelligent algorithm while ensuring junction temperature safety.

[0044] According to an embodiment of the present invention, preferably, the optimization process introduces digital twin technology: constructing a virtual thermodynamic model of the lamp, predicting heat load changes based on real-time operating data, dynamically adjusting the constraint weights of the optimization algorithm, and realizing predictive control.

[0045] Specifically, multimodal temperature sensing: 16 micro-thermocouple arrays are evenly spaced on the surface of the circuit board. The junction temperature data {T1-T16} of the LED light source is acquired at a sampling frequency of 100Hz. The three-dimensional temperature field is reconstructed through a convolutional neural network, and the maximum temperature gradient ▽T_max is calculated. Dynamic heat dissipation adjustment: When ▽T_max>5℃ / mm, the dual-stage linkage heat dissipation mechanism is activated: A) First-stage adjustment: Based on T_max = MAX(T1-T16), adjust the speed of the first blade 6 according to the formula N1 = 800 + 15 * (T_max-60) rpm; where 60 ≤ T_max ≤ 100°C; B) Second-stage adjustment: The second blade suspension gap δ is monitored in real time by a magnetic flux sensor, and the rotation speed N2 of the ring plate 8 is adjusted using an LQR controller to make δ = 0.5 ± 0.05 mm; Abnormal vibration processing: When the energy proportion of the vibration spectrum in the 5-8kHz range is greater than 30%, the third-level safety protocol is activated.

[0046] Furthermore, the first-level regulation also includes: fuzzy PID parameter dynamic optimization strategy: When dT_max / dt>2℃ / s, update the proportional coefficient according to ΔKp=0.4Kp_initial·(dT_max / dt); The integration time Ti is adaptively adjusted according to the temperature fluctuation variance σ²: Ti_new=Ti_initial·exp(-0.05σ²); When N1 fluctuates more than ±10% of the rated value for 5 consecutive seconds, it switches to the sliding mode variable structure control mode.

[0047] Furthermore, the three-level security protocol includes: Level 1: Execute {N1←800rpm, N2←1200rpm} within 0.5 seconds and activate the PTC heater in pipe 503 to increase the airflow speed to 20m / s; Level 2: When the vibration energy integral E>50m² / s³, inject a reverse damping current I_damp=0.15(E-50); Level 3: If E exceeds the threshold for 10 seconds, the system switches to the backup power supply and activates the piezoelectric actuator on copper sheet 13 to generate a 10kHz standing wave to remove carbon deposits.

[0048] Furthermore, the driving method of the piezoelectric actuator in Level 3 is: Phase difference control: The excitation phase difference between adjacent copper sheets 13 is set to 90° to form a traveling wave vibration mode; Frequency sweep: Scan in 50Hz steps within the range of 9.5-10.5kHz to find the resonance point with maximum amplitude; Amplitude limitation: Control surface vibration acceleration ≤ 20g to prevent structural fatigue damage.

[0049] Furthermore, it also includes an intelligent arc suppression method: real-time monitoring of the high-frequency noise component of the relay current, when the energy of the frequency band above 3MHz exceeds the baseline value by 20dB, a) Trigger the IGBT chopper circuit within 0.2ms to limit the arc current to below 5A; b) Synchronously starting the Tesla valve structure in the pipe body 503 to make the local air flow velocity reach 25 m / s; c) The arc reignition voltage is increased to 3 kV through the field emission effect of the gradient DLC coating on the surface of the copper sheet 13.

[0050] Furthermore, the gradient of the DLC coating includes: The coating thickness increases linearly from 50nm to 100nm along the airflow direction; Surface roughness Ra decreases from 0.8μm to 0.2μm; The Fermi level gradually changes from 4.8eV to 5.2eV, forming a built-in potential gradient.

[0051] Furthermore, it also includes: the introduction of digital twin technology, including: Build a 3D thermodynamic model of the lamp in the cloud and receive real-time {temperature, vibration, current} data from the edge; Predict the heat load change ΔQ in the next 5 minutes through the LSTM network; Dynamically adjust the optimization function weight: When ΔQ>10%, the temperature constraint weight increases by 50%; When ΔQ is less than -5%, the energy efficiency optimization weight increases by 30%.

[0052] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. The high-efficiency heat dissipation structure for explosion-proof lamps is characterized by: include: Housing (1); A light-transmitting plate (2) is arranged at the bottom of the housing (1) along a first direction; A circuit board (3) is arranged in the housing (1) along the first direction and is located close to a side of the light-transmitting plate (2); A plurality of light sources (4) distributed on the circuit board (3); A first blade (6) is rotatably mounted in the housing (1) and is used to drive the gas to flow in the housing (1) in a preset direction; A second blade (7) is suspended outside the shell (1) by magnetic force; a heat dissipation section (5), arranged on the housing (1) and located in the output direction of the second blade (7); and A ring plate (8) is rotatably mounted in the housing (1) and is magnetically connected to the second blade (7); The first blade (6) and the second blade (7) are respectively arranged at designated positions of the housing (1) according to different preset positions, so as to respectively dissipate heat in a directional and cyclic manner for the heat dissipation section (5).

2. The high-efficiency heat dissipation structure for explosion-proof lamps according to claim 1, characterized in that: The heat dissipation section (5) comprises: a heat dissipation tube (501) vertically connected to the top of the shell (1); heat dissipation fins (502) are distributed in an annular shape on the outer surface of the heat dissipation tube (501); spiral blades (10) are constructed on the inner wall of the heat dissipation tube (501); and the tube body (503) is connected to the spiral blades (10); and the two ends of the tube body (503) respectively extend toward the heat dissipation tube (501) and the light-transmitting plate (2); the bottom end of the tube body (503) is connected to an annular plate (504) for mounting a circuit board (3); the outer side and the inner side of the ring of the first blade (6) are respectively rotatably matched with the heat dissipation tube (501) and the tube body (503); and an annular motor (9) is installed on the outer side of the tube body (503), and its output end is connected to the first blade (6).

3. The high-efficiency heat dissipation structure for explosion-proof lamps according to claim 2, characterized in that: A relay (11) is provided in the tube body (503), the annular motor (9) and the circuit board (3) are both electrically connected to the relay (11), an annular frame (12) is connected in the tube body (503), a plurality of copper sheets (13) are arranged in parallel at intervals on the annular frame (12), and the relay (11) is fixed on the top of the copper sheet (13).

4. The high-efficiency heat dissipation structure for explosion-proof lamps according to claim 2, characterized in that: The second blade (7) is made of graphene, and the outer surface is plated with a metal film.

5. The high-efficiency heat dissipation structure for explosion-proof lamps according to claim 4, characterized in that: The inner side and outer side of the ring of the second blade (7) are connected to a first magnetic ring (14) and a second magnetic ring (15), respectively. A mounting frame (16) is provided on the outer side of the heat dissipation tube (501). A first annular magnet (17) and a second annular magnet (18) are mounted on the mounting frame (16), and magnetically repel the bottom sides of the first magnetic ring (14) and the second magnetic ring (15), respectively. A connecting block (19) is distributed in an annular shape at the bottom of the mounting frame (16), and is connected to the top of the housing (1) through the connecting block (19).

6. The high-efficiency heat dissipation structure for explosion-proof lamps according to claim 5, characterized in that: A connecting column (20) is distributed in an annular pattern at the bottom of the second blade (7), a third magnetic ring (21) is connected to the bottom end of the connecting column (20), an attraction ring (22) is provided at the top of the ring plate (8), and the third magnetic ring (21) is magnetically connected to the attraction ring (22).

7. The high-efficiency heat dissipation structure for explosion-proof lamps according to claim 6, characterized in that: The attraction ring (22) is formed by a plurality of magnets distributed in an annular shape; At least some of the magnets are magnetically repelled from the third magnetic ring (21), and their number is smaller than the magnets that are magnetically attracted to the third magnetic ring (21).

8. The high-efficiency heat dissipation structure for explosion-proof lamps according to claim 7, characterized in that: The mounting frame (16) comprises: two concentrically arranged annular plates (1601), a first annular magnet (17) and a second annular magnet (18) are respectively mounted on the two annular plates (1601), each of the annular plates (1601) is connected to a first cylinder (1602), and is respectively located on the inner side of the first magnetic ring (14) and the outer side of the second magnetic ring (15), the two first cylinders (1602) are connected via a connecting plate (1605), the first cylinder (1602) is rotatably mounted with a second cylinder (1603) via a bearing, and the second cylinder (1603) is provided with an annular buffer pad (1604).

9. The high-efficiency heat dissipation structure for explosion-proof lamps according to claim 8, characterized in that: The ring plate (8) is connected to the outer side of the first blade (6).

10. The high-efficiency heat dissipation structure for explosion-proof lamps according to claim 9, characterized in that: An annular cavity (23) is constructed in the heat dissipation cylinder (501), a vibration sensor (24) is installed in the annular cavity (23), and the vibration sensor (24) is electrically connected to the relay (11), and a probe (25) is distributed in an annular shape outside the vibration sensor (24).

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