Ceiling lamp anti-explosion LED lamp

Abstract

The invention discloses a ceiling lamp anti-explosion LED lamp, and belongs to the technical field of lighting equipment, the ceiling lamp anti-explosion LED lamp comprises a shell and a mounting plate, and a connecting rod is jointly mounted between the mounting plate and the shell; a light source plate is embedded in the bottom wall of the mounting plate, and a protection mechanism matched with the light source plate is arranged on the mounting plate; a driver for controlling the light source plate is arranged in the shell; according to the scheme, the driving mechanism drives the rotating plate to rotate, in the rotating process of the rotating plate, the magnet on the rotating plate rotates around the circle center of the rotating plate, and the magnet intermittently rotates to the position above the corresponding pressing plate. When the magnet rotates to the position above the corresponding pressing plate, under the action of repulsive force between the magnet and the pressing plate, the pressing plate exerts downward pressure on the elastic film, at the moment, air in the space, located below the elastic film, in the cavity is exhausted through the air hole, and the space, located above the elastic film, in the cavity is in a negative pressure state; the space sucks air from the outside through an air hole above the elastic film; in the air suction and exhaust process of the cavity, the flow speed of air around the heat conduction rod is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lighting devices, more particularly to a ceiling lamp explosion-proof LED lamp. BACKGROUND

[0002] The explosion-proof lamp is a lighting device specially designed for flammable and explosive hazardous environments, which can prevent sparks, high temperature or electric arc inside or outside from igniting the surrounding combustible gas, dust or vapor, thereby avoiding the occurrence of explosion accidents; It is widely used in hazardous environments such as oil exploration, oil refining, chemical industry, military industry, flammable dust environment, high protection requirement, humid place and marine oil platform, cruise ship and other places for ordinary lighting and operation lighting.

[0003] The explosion-proof lamp must meet strict sealing and explosion-proof requirements in flammable and explosive environments to prevent electric sparks or high temperature from igniting the surrounding combustible gas or dust. However, such sealing structure causes the heat inside the lamp to be difficult to dissipate quickly, especially for high-power explosion-proof ceiling lamps (≥100W); The ceiling mounting method further aggravates the heat dissipation problem, because the lamp shell top is close to the ceiling, the air flowability is very poor, and the efficiency of the traditional heat dissipation structure (such as heat dissipation fins, fan, etc.) is greatly reduced.

[0004] Therefore, the prior art mainly has the following problems: Some explosion-proof LED ceiling lamps use aluminum alloy heat dissipation fins, but the ceiling mounting method makes the fins close to the ceiling, and the heat convection is blocked, that is, after the ceiling lamp is installed, there is almost no air flow between the top of the lamp shell and the ceiling, and the heat accumulates on the upper part of the lamp, which causes the LED light efficiency to decrease, the service life to be shortened, and even causes the risk of overheating; The scheme of adding a fan to forcibly dissipate heat may generate electric sparks due to the operation of the fan, which violates the explosion-proof requirement.

[0005] Therefore, an explosion-proof LED lamp for ceiling lamp is provided. SUMMARY

[0006] In view of the problems in the prior art, the purpose of the present application is to provide an explosion-proof LED lamp for ceiling lamp, which can dissipate heat normally for high-power ceiling-type explosion-proof lamp and improve safety.

[0007] To solve the above problems, the technical scheme adopted by the present application is as follows.

[0008] An explosion-proof LED lamp for ceiling lamp, comprising a shell and a mounting plate, a connecting rod is installed between the mounting plate and the shell; A light source plate is embedded on the bottom wall of the mounting plate, and a protection mechanism cooperating with the light source plate is arranged on the mounting plate; A driver for controlling the light source plate is arranged in the shell; Heat conduction rods are uniformly inserted on the top wall of the mounting plate, and the top ends of the heat conduction rods are fixedly connected with the bottom wall of the shell; The heat conduction rod is provided with a cavity, an elastic film is horizontally fixedly installed in the cavity, a pressing plate made of magnetic material is fixedly installed on the elastic film, a plurality of air holes are formed in the side wall of the cavity above and below the elastic film; A metal heat conduction plate is horizontally fixedly installed in the shell. A rotating plate is horizontally rotatably installed in the space below the heat conduction plate in the shell, magnets are uniformly fixedly installed on the bottom wall of the rotating plate, the magnets and the pressing plates are one-to-one corresponding and repel each other, and a driving mechanism for driving the rotating plate to rotate is arranged in the shell.

[0009] Further, the protection mechanism comprises a circular ring-shaped pressing ring, the surface of the light source plate is provided with a lens, a tempered glass transparent cover is fixedly embedded on the pressing ring, threaded rods are uniformly rotatably inserted on the pressing ring, and threaded holes corresponding to the threaded rods are formed in the surface of the mounting plate.

[0010] Further, an arc-shaped groove is formed in the inner side wall of the shell, the driving mechanism comprises a mounting rod which is horizontally rotatably installed between the heat conduction plate and the bottom wall in the shell, a circular ring sleeve is fixedly sleeved on the mounting rod, the side wall of the circular ring sleeve is attached to the side wall of the arc-shaped groove, and the circular ring sleeve is made of heat-insulating material. Uniformly distributed insertion holes are formed in the side wall of the circular ring sleeve, and the side wall of the insertion hole on the circular ring sleeve is attached to the side wall of the arc-shaped groove. A counterweight made of metal is slidably installed in the insertion hole, a memory alloy wire is jointly installed between the counterweight and the side wall of the insertion hole, and a linkage mechanism for synchronously rotating the rotating plate with the mounting rod is arranged in the shell.

[0011] Further, the linkage mechanism comprises a first bevel gear fixedly sleeved on the mounting rod, a rotating rod is vertically rotatably installed in the shell, a second bevel gear is sleeved on the rotating rod, and the second bevel gear is engaged with the first bevel gear. A third gear is sleeved on the rotating rod, and a tooth groove is uniformly formed in the side wall of the rotating plate and engaged with the third gear.

[0012] Further, a horizontal plate is horizontally fixedly installed on the outer wall of the heat conduction rod, and the horizontal plate is in the same plane as the elastic film.

[0013] Further, the rotating plate comprises a circular plate and a rotating shaft, the tooth groove is formed in the side wall of the circular plate, a through hole is formed at the center of the circular plate, the rotating shaft is vertically fixedly installed on the inner bottom wall of the shell, and the circular plate is movably sleeved on the rotating shaft through the through hole; a limiting ring is fixedly sleeved on the side wall of the rotating shaft below the circular plate; and the ratio of the thickness of the third gear to the thickness of the rotating plate is 3-5.

[0014] Further, a circular ring-shaped elastic sleeve is sleeved on the rotating shaft, the top end and the bottom end of the elastic sleeve are attached to the heat conduction plate and the circular plate respectively; a cavity is formed in the elastic sleeve, and a small hole is formed in the side wall of the cavity.

[0015] Further, the space in the shell below the heat-conducting plate is filled with cooling oil.

[0016] Further, the top wall and the bottom wall of the pressing plate are fixedly provided with air bags, and the ends of the air bags away from the pressing plate are fixedly connected with the end walls of the cavity; and the side wall of each air bag is provided with a turbulence hole.

[0017] Further, the shell comprises an upper cover with two open ends, a sleeve with two open ends and a lower cover with an open top end; The connecting rod is fixedly installed on the bottom wall of the lower cover; The sleeve is fixedly installed with a partition plate, and the top wall of the partition plate is provided with a terminal post, which is electrically connected with the driver; The inner side wall of the upper cover is provided with an internal thread, and the outer wall of the sleeve is provided with an external thread threadedly matched with the internal thread; The top end of the lower cover is provided with a screw hole, and the side wall of the sleeve is rotatably installed with a screw threadedly matched with the screw hole.

[0018] Compared with the prior art, the present application has the following advantages: (1) The present application is characterized in that the heat-conducting rod, the cavity, the elastic membrane, the pressing plate and the driving mechanism are cooperated with each other, the driving mechanism drives the rotating plate to rotate, and the magnet on the rotating plate rotates around the center of the rotating plate, so that the magnet intermittently rotates above the corresponding pressing plate.

[0019] When the magnet rotates above the corresponding pressing plate, the pressing plate exerts a downward pressure on the elastic membrane under the action of the repulsive force between the magnet and the pressing plate, at this time, the gas in the space below the elastic membrane in the cavity is discharged through the air hole, the space above the elastic membrane in the cavity is in a negative pressure state, and the space above the elastic membrane inhales air from the outside through the air hole; in the process of inhaling and discharging air in the cavity, the air flow speed around the heat-conducting rod is accelerated, the heat dissipation effect of the heat-conducting rod is improved, that is, the temperature difference between the heat-conducting rod and the mounting plate and the shell is increased, and the heat dissipation effect of the ceiling lamp is improved.

[0020] (2) The present application is characterized in that the round plate, the shaft, the magnet and the pressing plate are cooperated with each other, the round plate can move up and down along the shaft, when the magnet is above the pressing plate, the pressing plate moves down under the action of the repulsive force, the magnet drives the round plate to move up, and in the process of moving up of the round plate, the fluid in the space below the heat-conducting plate in the shell is stirred, so that the probability of the high-temperature fluid in the space directly contacting with the side wall of the shell is increased, and the heat dissipation effect is improved.

[0021] (3) This solution can lubricate the circular plate, the first bevel gear, the second bevel gear, the third gear, the tooth groove, the mounting rod and the counterweight block through the mutual cooperation of the elastic sleeve, the cavity, the small holes and the cooling oil. During the downward movement of the circular plate, the cavity absorbs the cooling oil through the small holes. When the circular plate squeezes the elastic sleeve, the cooling oil in the cavity is discharged through the small holes. At this time, the cooling oil discharged from the small holes impacts the cooling oil in the shell. Under the action of the impact force, the stirring effect of the cooling oil is improved, the probability of the high-temperature cooling oil contacting the side wall of the shell is increased, and the heat dissipation effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front cross-sectional structural diagram of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure of SS; Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged structure at A in the middle; Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure at B in the middle; Figure 6 This is a schematic cross-sectional view of the combined structure of the annular sleeve and the lower cover of the present invention; Figure 7 For the present invention Figure 3 Schematic diagram of the enlarged structure at C in the middle; Figure 8 This is a schematic diagram of the cross-sectional structure of the combination of the heat conducting rod and the horizontal plate of the present invention; Figure 9 It is a schematic diagram of the top structure of the present invention.

[0023] Description of the numbers in the figure: 1. Housing; 101. Upper cover; 102. Sleeve; 103. Lower cover; 2. Mounting plate; 3. Connecting rod; 4. Light source board; 5. Driver; 6. Heat conducting rod; 7. Cavity; 8. Elastic membrane; 9. Pressing plate; 10. Air hole; 11. Heat conducting plate; 12. Rotating plate; 1201. Circular plate; 1202. Rotating shaft; 13. Magnet; 14. Pressing ring; 15. Lens; 16. Tempered glass transparent cover; 17. Threaded rod; 1 8. Threaded hole; 19. Mounting rod; 20. Ring sleeve; 21. Socket; 22. Counterweight; 23. Memory alloy wire; 24. First bevel gear; 25. Rotating rod; 26. Second bevel gear; 27. Third gear; 28. Tooth groove; 29. ​​Cross plate; 30. Limiting ring; 31. Elastic sleeve; 32. Cavity; 33. Small hole; 34. Airbag; 35. Spoiler hole; 36. Partition; 37. Terminal; 38. Screw. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application. Embodiment 1:

[0025] Please refer to Figures 1 to 9 A ceiling lamp explosion-proof LED lamp, comprising a shell 1 and a mounting plate 2, a connecting rod 3 is installed between the mounting plate 2 and the shell 1; The shell 1 comprises an upper cover 101 with both ends open, a sleeve 102 with both ends open and a lower cover 103 with the top end open; The connecting rod 3 is fixedly installed on the bottom wall of the lower cover 103, and the driver 5 and the heat conduction plate 11 are both fixedly installed in the lower cover 103; The sleeve 102 is fixedly installed with a partition plate 36, and the top wall of the partition plate 36 is provided with a terminal post 37, which is electrically connected with the driver 5; The inner side wall of the upper cover 101 is provided with an internal thread, and the outer wall of the sleeve 102 is provided with an external thread matched with the internal thread; The top end of the lower cover 103 is provided with a screw hole, and the sidewall of the sleeve 102 is rotatably installed with a screw 38 matched with the screw hole, The bottom wall of the mounting plate 2 is embedded with a light source plate 4, and the mounting plate 2 is provided with a protection mechanism matched with the light source plate 4; the shell 1 is provided with a driver 5 for controlling the light source plate 4, and the driver 5 is electrically connected with the light source plate 4; The top wall of the mounting plate 2 is uniformly inserted with a heat conduction rod 6 made of metal, and the top end of the heat conduction rod 6 is fixedly connected with the bottom wall of the shell 1; The heat conduction rod 6 is provided with a cavity 7, and the cavity 7 is horizontally fixedly installed with an elastic film 8, and the elastic film 8 is fixedly installed with a pressing plate 9 made of magnetic material; when the elastic film 8 is only subjected to the gravity of the pressing plate 9, the elastic film 8 is in a horizontal state, and the sidewall of the cavity 7 is provided with a plurality of air holes 10 above and below the elastic film 8; The shell 1 is horizontally fixedly installed with a heat conduction plate 11 made of metal, and the driver 5 is above the heat conduction plate 11; since the heat conduction performance of the metal is good, the heat generated by the driver 5 can be transmitted to the space below the heat conduction plate 11; The rotating plate 12 is horizontally rotatably installed in the space below the heat-conducting plate 11 in the shell 1, and a plurality of strip-shaped magnets 13 are vertically and uniformly fixed on the bottom wall of the rotating plate 12, the magnets 13 correspond to the pressing plates 9 one by one, the plurality of magnets 13 are located on the same straight line, the straight line on which the plurality of magnets 13 are located is parallel to the diameter of the rotating plate 12, and the magnets 13 and the pressing plates 9 repel each other; and the shell 1 is provided with a driving mechanism for driving the rotating plate 12 to rotate.

[0026] The protection mechanism comprises a circular ring-shaped pressing ring 14, the surface of the light source plate 4 is provided with a lens 15, a tempered glass transparent cover 16 is fixedly embedded on the pressing ring 14, and a plurality of threaded rods 17 are rotatably inserted on the pressing ring 14; and the surface of the mounting plate 2 is provided with a plurality of threaded holes 18 corresponding to the threaded rods 17.

[0027] First, a silica rubber sealing ring is arranged between the sleeve 102 and the lower cover 103, then the screw hole is aligned with the screw 38, then the screw 38 is screwed into the screw hole, so that the sleeve 102 and the lower cover 103 are fixed together, thereby preventing the driver 5 from being exposed to the external environment; the threaded rod 17 is aligned with the threaded hole 18, then the threaded rod 17 is rotated to screw into the threaded hole 18, at this time the pressing ring 14 is fixedly installed on the surface of the lens 15, thereby preventing the light source plate 4 from being exposed to the external environment.

[0028] Then the wire is inserted into the upper cover 101 from the top end of the upper cover 101, then the wire is connected with the corresponding terminal post 37, then the upper cover 101 is sleeved on the sleeve 102, and the upper cover 101 is screwed, so that the upper cover 101 and the sleeve 102 are screwed together through the internal thread and the external thread.

[0029] In the working process, the heat generated by the light source plate 4 and the driver 5 is respectively dissipated to the outside through the heat-conducting rod 6 and the shell 1 made of metal material in the form of heat exchange, so that the light source plate 4 and the driver 5 can work normally.

[0030] Part of the heat generated by the driver 5 is transmitted to the space between the bottom wall of the shell 1 and the heat-conducting plate 11 through the heat-conducting plate 11, at this time the driving mechanism starts to drive the rotating plate 12 to rotate.

[0031] In the process of rotating the rotating plate 12, the magnets 13 on the rotating plate 12 rotate around the center of the rotating plate 12, so that the magnets 13 intermittently rotate above the corresponding pressing plate 9.

[0032] When the magnet 13 rotates above the corresponding pressing plate 9, the pressing plate 9 exerts a downward pressure on the elastic film 8 under the action of the repulsive force between the magnet 13 and the pressing plate 9, at this time the gas in the space below the elastic film 8 in the cavity 7 is discharged through the air hole 10, the space above the elastic film 8 in the cavity 7 is in a negative pressure state, and the space sucks air from the outside through the air hole 10 above the elastic film 8.

[0033] During the process of air intake and exhaust in the cavity 7, the air flow rate around the heat conducting rod 6 is accelerated, and the heat dissipation effect of the heat conducting rod 6 is improved, that is, the temperature difference between the heat conducting rod 6 and the mounting plate 2 and the shell 1 is increased, thereby improving the heat dissipation effect.

[0034] like Figure 6 As shown, an arc-shaped groove is provided on the inner side wall of the housing 1, and the driving mechanism includes a mounting rod 19 that is horizontally rotatably mounted between the heat conducting plate 11 and the inner bottom wall of the housing 1. A circular sleeve 20 is fixedly sleeved on the mounting rod 19, and the side wall of the circular sleeve 20 is in contact with the side wall of the arc-shaped groove. The circular sleeve 20 is made of a heat-insulating material. The side wall of the annular sleeve 20 is evenly provided with insertion holes 21, and the insertion holes 21 are evenly distributed on the side wall of the annular sleeve 20. The side wall of the annular sleeve 20 on which the insertion holes 21 are provided is in contact with the side wall of the arc groove. Therefore, when the annular sleeve 20 rotates, the insertion holes 21 evenly distributed on the side wall of the annular sleeve 20 will intermittently enter the arc groove. A metal counterweight block 22 is slidably installed in the socket 21, and a memory alloy wire 23 is installed between the counterweight block 22 and the side wall of the socket 21, so that the memory alloy wire 23 can push the counterweight block 22 to move in the socket 21. A linkage mechanism is provided in the shell 1 for making the rotating plate 12 rotate synchronously with the mounting rod 19.

[0035] Under the action of heat exchange, the heat of the hot air in the space between the heat conducting plate 11 and the inner bottom wall of the shell 1 is transferred to the counterweight block 22 in the socket 21 connected to the shell 1 through heat exchange, and then the counterweight block 22 transfers the heat to the corresponding memory alloy wire 23 through heat exchange, so that the memory alloy wire 23 is heated and stretched. The stretched memory alloy wire 23 pushes the counterweight block 22 to move along the socket 21 to the end of the socket 21 away from the mounting rod 19.

[0036] At the same time, under the action of heat exchange, the heat in the socket 21 located in the arc groove is transferred to the outside through the metal shell 1. At this time, the memory alloy wire 23 in the socket 21 contracts and drives the counterweight block 22 to move toward the mounting rod 19.

[0037] Therefore, during the operation of the lamp, the counterweight 22 in the socket 21 connected to the shell 1 will automatically move away from the mounting rod 19, and the counterweight 22 in the socket 21 connected to the arc groove will automatically move closer to the mounting rod 19, thereby breaking the symmetry of the mass distribution of the annular sleeve 20 and utilizing the torque of gravity on the eccentric mass to drive the annular sleeve 20 to rotate.

[0038] like Figure 4 、 Figure 7As shown, the linkage mechanism comprises a first bevel gear 24 fixedly sleeved on the mounting rod 19, a rotating rod 25 vertically rotatably installed in the housing 1, and a second bevel gear 26 sleeved on the rotating rod 25 and engaged with the first bevel gear 24; thus when the mounting rod 19 rotates, the rotating rod 25 can be driven to rotate under the cooperation of the mutually engaged first bevel gear 24 and second bevel gear 26; A third gear 27 is sleeved on the rotating rod 25, and tooth grooves 28 are uniformly formed in the side wall of the rotating plate 12 and engaged with the third gear 27; in the process of driving the third gear 27 to rotate by the rotating rod 25, the third gear 27 will drive the rotating plate 12 to rotate due to the engagement between the third gear 27 and the tooth grooves 28.

[0039] As shown in Figure 2 As shown, the outer wall of the heat-conducting rod 6 is horizontally fixedly provided with a horizontal plate 29, which is in the same plane as the elastic film 8, so that when the elastic film 8 deforms, the space in the negative pressure state of the cavity 7 will not suck in the hot air discharged from the cavity 7 on the other side of the elastic film 8 again, thereby improving the heat dissipation effect of the heat-conducting rod 6.

[0040] As shown in Figure 2 , Figure 5 As shown, the rotating plate 12 comprises a circular plate 1201 and a rotating shaft 1202, the tooth grooves 28 are formed in the side wall of the circular plate 1201, a through hole is formed at the center of the circular plate 1201, the rotating shaft 1202 is vertically fixedly installed on the inner bottom wall of the housing 1, and the circular plate 1201 is movably sleeved on the rotating shaft 1202 through the through hole, so that the circular plate 1201 can move up and down along the rotating shaft 1202; when the magnet 13 is above the pressing plate 9, the pressing plate 9 moves downward under the repulsive force, and the magnet 13 drives the circular plate 1201 to move upward; in the process of moving upward of the circular plate 1201, the fluid in the space below the heat-conducting plate 11 in the housing 1 can be stirred, thereby increasing the probability of direct contact between the high-temperature fluid in the space and the side wall of the housing 1 and improving the heat dissipation effect; the side wall of the rotating shaft 1202 is fixedly sleeved with a limiting ring 30 below the circular plate 1201, the height of the circular plate 1201 can be limited by the limiting ring 30, the magnet 13 is prevented from directly contacting the inner bottom wall of the housing 1, the resistance received by the circular plate 1201 is reduced, and the normal rotation of the circular plate 1201 is ensured; The ratio of the thickness of the third gear 27 to the thickness of the rotating plate 12 is 3-5, so that the third gear 27 can always be engaged with the tooth grooves 28 in the process of moving the circular plate 1201 up and down, thereby ensuring that the third gear 27 can drive the rotating plate 12 to rotate.

[0041] As shown in Figure 5As shown, the rotating shaft 1202 is sleeved with an annular elastic sleeve 31, the top end and bottom end of the elastic sleeve 31 are attached to the heat conduction plate 11 and the circular plate 1201 respectively, under the action of the elastic sleeve 31, the pressing plate 9 has a downward moving tendency, so that the circular plate 1201 can timely move downward when the pressing plate 9 is misaligned with the magnet 13, which ensures the up and down reciprocating movement of the circular plate 1201 along the rotating shaft 1202; the elastic sleeve 31 is provided with a cavity 32, and the side wall of the cavity 32 is provided with a small hole 33.

[0042] The space in the housing 1 below the heat conduction plate 11 is provided with cooling oil.

[0043] Under the action of the cooling oil, the circular plate 1201, the first bevel gear 24, the second bevel gear 26, the third gear 27, the gear slot 28, the mounting rod 19 and the counterweight 22 can be lubricated, which ensures the normal operation of the driving mechanism.

[0044] During the downward movement of the circular plate 1201, the cavity 32 absorbs the cooling oil through the small hole 33, when the circular plate 1201 extrudes the elastic sleeve 31, the cooling oil in the cavity 32 is discharged through the small hole 33, at this time, the cooling oil discharged from the small hole 33 impacts the cooling oil in the housing 1, under the action of the impact force, the stirring effect of the cooling oil is improved, the probability of the high-temperature cooling oil contacting the side wall of the housing 1 is increased, and the heat dissipation effect is improved.

[0045] As shown in the initial state, the elastic film 8 is not deformed, at this time, the air bag 34 on the top wall of the pressing plate 9 is in the extrusion state, and the air bag 34 on the bottom wall of the pressing plate 9 is in the stretching state. Figure 8

[0046] During the downward movement of the pressing plate 9, the air bag 34 below the pressing plate 9 is extruded, and the air bag 34 above the pressing plate 9 is stretched and inhales air through the corresponding turbulence hole 35; at this time, the extruded air bag 34 discharges air through the turbulence hole 35, and the gas discharged from the turbulence hole 35 stirs the gas in the space below the pressing plate 9 in the cavity 7, which increases the probability of the high-temperature gas which has directly contacted with the side wall of the cavity 7 being discharged through the air hole 10, and improves the heat dissipation effect.

[0047] When the pressing plate 9 moves upward, the air bag 34 above the pressing plate 9 is extruded, which also increases the probability of the high-temperature gas which has contacted with the side wall of the cavity 7 in the space above the pressing plate 9 being discharged through the air hole 10.

[0048]

[0049] ​​The above merely provides the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art, according to the technical solution of the present application and the improved concept thereof, makes equivalent replacement or change within the technical range disclosed by the present application, and should be covered within the protection scope of the present application.

Claims

1. A ceiling light explosion-proof LED lamp, comprising a housing (1) and a mounting plate (2), wherein a connecting rod (3) is mounted between the mounting plate (2) and the housing (1); Its characteristics are: A light source board (4) is embedded on the bottom wall of the mounting plate (2), and a protective mechanism cooperating with the light source board (4) is provided on the mounting plate (2); a driver (5) for controlling the light source board (4) is provided in the housing (1); Heat conducting rods (6) are evenly inserted on the top wall of the mounting plate (2), and the top ends of the heat conducting rods (6) are fixedly connected to the bottom wall of the housing (1); A cavity (7) is provided on the heat conducting rod (6), an elastic membrane (8) is fixedly installed horizontally in the cavity (7), a pressure plate (9) made of a magnetic material is fixedly installed on the elastic membrane (8), and a plurality of air holes (10) are provided on the side wall of the cavity (7) at locations above and below the elastic membrane (8); A heat conducting plate (11) made of metal is fixedly installed horizontally in the housing (1); A rotating plate (12) is horizontally rotatably mounted in the space below the heat conducting plate (11) in the housing (1), magnets (13) are evenly fixedly mounted on the bottom wall of the rotating plate (12), and the magnets (13) and the pressure plate (9) repel each other; and a driving mechanism for driving the rotating plate (12) to rotate is provided in the housing (1).

2. The explosion-proof LED ceiling lamp according to claim 1, characterized in that: The protective mechanism comprises an annular pressing ring (14), a lens (15) is provided on the surface of the light source plate (4), a tempered glass transparent cover (16) is fixedly embedded on the pressing ring (14), a threaded rod (17) is uniformly rotated and inserted on the pressing ring (14), and threaded holes (18) corresponding to the threaded rods (17) are opened on the surface of the mounting plate (2).

3. The explosion-proof LED ceiling lamp according to claim 2, characterized in that: An arc groove is provided on the inner side wall of the shell (1), and the driving mechanism includes a mounting rod (19) which is horizontally rotatably mounted between the heat conducting plate (11) and the inner bottom wall of the shell (1), and a circular sleeve (20) is fixedly sleeved on the mounting rod (19), and the side wall of the circular sleeve (20) is in contact with the side wall of the arc groove, and the circular sleeve (20) is made of a heat-insulating material; The side wall of the annular sleeve (20) is evenly provided with insertion holes (21), and the insertion holes (21) are evenly distributed on the side wall of the annular sleeve (20). The side wall of the annular sleeve (20) on which the insertion holes (21) are provided is in contact with the side wall of the arc groove; A metal counterweight (22) is slidably mounted in the socket (21), and a memory alloy wire (23) is mounted between the counterweight (22) and the side wall of the socket (21). A linkage mechanism is provided in the housing (1) for causing the rotating plate (12) to rotate synchronously with the mounting rod (19).

4. The explosion-proof LED ceiling lamp according to claim 3, characterized in that: The linkage mechanism comprises a first bevel gear (24) fixedly mounted on a mounting rod (19); a rotating rod (25) is vertically rotatably mounted in the housing (1); a second bevel gear (26) is mounted on the rotating rod (25); and the second bevel gear (26) is meshed with the first bevel gear (24); A third gear (27) is sleeved on the rotating rod (25), and tooth grooves (28) are evenly formed on the side wall of the rotating plate (12), and the tooth grooves (28) are meshed with the third gear (27).

5. The explosion-proof LED ceiling lamp according to claim 4, characterized in that: A transverse plate (29) is fixedly mounted horizontally on the outer wall of the heat conducting rod (6), and the transverse plate (29) and the elastic membrane (8) are in the same plane.

6. The explosion-proof LED ceiling lamp according to claim 5, characterized in that: The rotating plate (12) comprises a circular plate (1201) and a rotating shaft (1202); the tooth groove (28) is provided on the side wall of the circular plate (1201); a through hole is provided at the center of the circular plate (1201); the rotating shaft (1202) is vertically fixedly mounted on the inner bottom wall of the housing (1), and the circular plate (1201) is movably sleeved on the rotating shaft (1202) through the through hole; and a limiting ring (30) is fixedly sleeved on the portion of the side wall of the rotating shaft (1202) located below the circular plate (1201); and the ratio of the thickness of the third gear (27) to the thickness of the rotating plate (12) is 3-5.

7. The explosion-proof LED ceiling lamp according to claim 6, characterized in that: A circular elastic sleeve (31) is sleeved on the rotating shaft (1202), and the top and bottom ends of the elastic sleeve (31) are respectively fitted with the heat conducting plate (11) and the circular plate (1201); a cavity (32) is provided on the elastic sleeve (31), and a small hole (33) is provided on the side wall of the cavity (32).

8. The explosion-proof LED ceiling lamp according to claim 7, characterized in that: Cooling oil is contained in the space below the heat conducting plate (11) in the housing (1).

9. The explosion-proof LED ceiling lamp according to claim 1, characterized in that: Airbags (34) are fixedly mounted on the top and bottom walls of the pressure plate (9), and one end of the airbags (34) away from the pressure plate (9) is fixedly connected to the corresponding end wall of the cavity (7); and a spoiler hole (35) is provided on the side wall of each airbag (34).

10. The explosion-proof LED ceiling lamp according to claim 1, characterized in that: The housing (1) comprises an upper cover (101) with openings at both ends, a sleeve (102) with openings at both ends, and a lower cover (103) with an opening at the top end; The connecting rod (3) is fixedly mounted on the bottom wall of the lower cover (103); A partition (36) is fixedly installed in the sleeve (102), and a terminal (37) is provided on the top wall of the partition (36), and the terminal (37) is electrically connected to the driver (5); An internal thread is provided on the inner wall of the upper cover (101), and an external thread matching the internal thread is provided on the outer wall of the sleeve (102); A screw hole is provided at the top end of the lower cover (103), and a screw (38) that is threadably engaged with the screw hole is rotatably mounted on the side wall of the sleeve (102).

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