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CN114838310A - Explosion-proof LED lamp - Google Patents

Explosion-proof LED lamp Download PDF

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Publication number
CN114838310A
CN114838310A CN202210786211.7A CN202210786211A CN114838310A CN 114838310 A CN114838310 A CN 114838310A CN 202210786211 A CN202210786211 A CN 202210786211A CN 114838310 A CN114838310 A CN 114838310A
Authority
CN
China
Prior art keywords
led lamp
plate
heat dissipation
middle plate
explosion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210786211.7A
Other languages
Chinese (zh)
Inventor
夏继飞
吴书峰
夏正琴
张爱东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baode Lighting Group Co ltd
Original Assignee
Baode Lighting Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baode Lighting Group Co ltd filed Critical Baode Lighting Group Co ltd
Priority to CN202210786211.7A priority Critical patent/CN114838310A/en
Publication of CN114838310A publication Critical patent/CN114838310A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/60Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention discloses an explosion-proof LED lamp, which belongs to the technical field of lamps and solves the problems of poor heat dissipation performance, poor explosion resistance and low safety of the lamps in the prior art. According to the LED lamp, the heat dissipation assembly is arranged in the shell, the heat in the conical plate is guided to the outside of the shell by utilizing the rotation of the U-shaped frame, the micro fan guides external cold air flow into the conical plate to cool the LED lamp beads, so that the heat in the LED lamp is quickly dissipated, the protection assembly is arranged at the top of the lampshade, the lampshade can be timely powered off to form protection when the lampshade is affected by dust and explodes, the safety of the LED lamp is improved, the air flow in the heat dissipation fins returns to the outside of the heat dissipation fins through the rotation of the micro fan, and the dust is not easy to accumulate on the heat dissipation fins.

Description

Explosion-proof LED lamp
Technical Field
The invention belongs to the technical field of lamps, and particularly relates to an explosion-proof LED lamp.
Background
The explosion-proof lamp is a lamp which is used in dangerous places where combustible gas and dust exist, can prevent electric arcs, sparks and high temperature which are possibly generated in the lamp from igniting the combustible gas and dust in the surrounding environment, and accordingly meets the explosion-proof requirement, and is also called as an explosion-proof lamp and an explosion-proof illuminating lamp. Current explosion-proof light generally includes casing, translucent cover, top cap, light source and drive arrangement, and translucent cover and top cap are installed respectively in the both sides of seal installation casing, and light source and drive arrangement install inside the casing, because current light source utilizes LED lamp pearl to constitute the array more and reaches higher luminous intensity, consequently produces a large amount of heats easily, destroys the internal circuit structure easily and arouses the explosion of LED lamp.
Disclosure of Invention
The invention aims to provide an explosion-proof LED lamp with good heat dissipation performance, good explosion-proof performance and high safety aiming at the defects in the prior art.
In order to achieve the technical purpose, the explosion-proof LED lamp adopts the technical scheme that:
an explosion-proof LED lamp comprises a shell, a heat dissipation component arranged in the shell and a protection component arranged at the bottom of the shell, the middle part of the shell is provided with a middle plate, the surface of the middle plate is provided with a driving shell, a clapboard which divides the interior of the shell into two spaces is arranged in the driving shell, the clapboard is penetrated with a heat radiation component which comprises a first driving motor transversely arranged on one side of the clapboard, the output shaft of the first driving motor is connected with an L-shaped transmission rod arranged on the other side of the partition plate, the tail end of the L-shaped transmission rod is connected with a trapezoidal rod with a downward port, a micro fan is inserted into the other end port of the trapezoidal rod and is arranged outside the driving shell, a bottom connecting shaft penetrates through the end opening of the trapezoidal rod and then is inserted into the lower part of the middle plate to be rotatably connected with the rotating ring, two ends of the rotating ring are connected with the U-shaped frame, and the middle part of the bottom wall of the U-shaped frame is connected with a second driving motor;
the miniature fan comprises a middle plate, a shell, a plurality of heat dissipation fins, a plurality of miniature fans and a plurality of LED lamp beads, wherein the surface of the middle plate is uniformly provided with the plurality of heat dissipation fins along the circumferential direction, through holes are formed between every two adjacent heat dissipation fins and the shell to form a heat dissipation area, the end parts of the heat dissipation fins close to the center of the middle plate are integrated to form a covering surface and cover the miniature fans, the bottoms of the heat dissipation fins are fixedly connected with the middle plate, heat conduction columns extend towards the back of the middle plate, the heat conduction columns are distributed at the bottom of the middle plate in a conical shape, the periphery of each heat conduction column is sleeved with a conical plate fixedly connected with the bottom of the middle plate, the surface of each conical plate is provided with the plurality of LED lamp beads, the bottom of each conical plate is provided with a horizontally placed fixing plate, the surface of each fixing plate is provided with a second driving motor, the bottom of each fixing plate is connected with a lampshade through a connecting clamping seat, and two ends of the top of the lampshade are inserted into the conical plate and are in abutting connection through a protection component;
the protection component is the locating rack that the level set up including locating the intermediate lamella below, the locating rack waist is equipped with outside convex engaging lug respectively, and the tip is respectively to being equipped with the V-arrangement groove, the V-arrangement inslot card is equipped with the connection cap, connect cap bottom through the wire with arrange the circuit board on the drive shell inner wall in and be connected, it is connected with armature to connect the conflict of cap surface, armature other end upper portion is articulated with the engaging lug, and the lower part is connected with the gangbar of level setting, armature lateral wall and LED lamp pearl electric connection, the gangbar other end is connected with the set-square bottom, the set-square top is connected with the mobile jib, the mobile jib is connected with lamp shade one end after passing the locating rack, the lamp shade other end and locating rack looks joint.
Preferably, the surface of the shell is provided with a protective layer, and the protective layer covers the surface of the middle plate and is fixedly connected with the middle plate.
Preferably, the protective layer is made of thermoplastic polyurethane and is sprayed on the surface of the middle plate through injection molding.
Preferably, the U-shaped frame penetrates through the positioning frame and then is connected with a second driving motor arranged on the surface of the fixing plate.
Preferably, a sealing ring tightly attached to the inner wall of the lampshade is arranged at the joint of the connecting clamping seat and the lampshade.
Preferably, bosses are respectively oppositely arranged on two sides of the top of the conical plate, and two ends of the lampshade are clamped in the bosses.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the heat dissipation assembly is arranged in the shell, the heat in the conical plate is guided to the outside of the shell by utilizing the rotation of the U-shaped frame, the micro fan guides external cold air flow into the conical plate to cool the LED lamp beads, so that the heat in the LED lamp is quickly dissipated, and the LED lamp is prevented from being exploded; the top of the lampshade is provided with the protection component, so that the lampshade can be powered off in time to form protection when the lampshade is affected by dust and explodes, and the safety of the LED lamp is improved; by the rotation of the micro fan, the airflow in the radiating fins returns to the outside of the radiating fins, so that dust is not easy to accumulate on the radiating fins, and the radiating performance of the radiating fins is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of a heat sink assembly according to the present invention;
fig. 4 is a schematic structural view of a protective member according to the present invention.
In the figure: 1. a housing; 2. a middle plate; 3. a drive case; 4. a partition plate; 5. a drive motor; 6, an L-shaped transmission rod; 7. a trapezoidal bar; 8. a micro fan; 9. a rotating ring; 10, a U-shaped frame; 11. a second drive motor; 12. heat dissipation fins; 13. a through hole; 14. a heat-conducting column; 15. a tapered plate; 16, LED lamp beads; 17. a fixing plate; 18. a lamp shade; 19. a positioning frame; 20. connecting lugs; a V-shaped groove; 22. a connecting cap; 23. a circuit board; 24. an armature; 25. a linkage rod; 26. a set square; 27. a main rod; 28. a protective layer; 29. a seal ring; 30. and (4) a boss.
Detailed Description
The invention will be further described with reference to the following drawings and detailed description:
as shown in fig. 1-4, an explosion-proof LED lamp comprises a housing 1, a heat dissipation assembly disposed inside the housing 1, and a protection assembly disposed at the bottom of the housing 1, wherein a middle plate 2 is disposed in the middle of the housing 1, a driving shell 3 is disposed on the surface of the middle plate 2, a partition plate 4 for dividing the interior of the housing 1 into two spaces is disposed in the driving shell 3, the heat dissipation assembly is inserted through the partition plate 4, the heat dissipation assembly comprises a first driving motor 5 transversely disposed on one side of the partition plate 4, an output shaft of the first driving motor 5 is connected to an L-shaped transmission rod 6 disposed on the other side of the partition plate 4, a ladder-shaped rod 7 having a downward end is connected to the end of the L-shaped transmission rod 6, a micro fan 8 is inserted into an end of the ladder-shaped rod 7, the micro fan 8 is disposed outside the driving shell 3, a bottom connection shaft of the micro fan passes through an end of the ladder-shaped rod 7 and then is inserted into the lower portion of the middle plate 2 to be rotatably connected to a rotation ring 9, the two ends of the rotating ring 9 are connected with a U-shaped frame 10, and the middle part of the bottom wall of the U-shaped frame 10 is connected with a second driving motor 11;
a plurality of radiating fins 12 are uniformly distributed on the surface of the middle plate 2 along the circumferential direction, through holes 13 are arranged between two adjacent radiating fins 12 and the shell 1 to form radiating areas, the ends of the radiating fins 12 close to the center of the middle plate 2 are integrated to form a covering surface, and covers the micro fan 8, the bottom of the heat dissipation fin 12 is fixedly connected with the middle plate 2, and a heat conduction column 14 extends towards the back of the middle plate 2, the heat conducting columns 14 are distributed at the bottom of the middle plate 2 in a conical shape, the periphery of each heat conducting column 14 is sleeved with a conical plate 15 fixedly connected with the bottom of the middle plate 2, the surface of the conical plate 15 is provided with a plurality of LED lamp beads 16, the bottom of the conical plate 15 is provided with a horizontally arranged fixing plate 17, the surface of the fixed plate 17 is provided with a second driving motor 11, the bottom of the fixed plate is connected with a lampshade 18 through a connecting clamping seat, and two ends of the top of the lampshade 18 are inserted into the conical plate 15 and are in interference connection through a protection component;
the protection component comprises a positioning frame 19 which is arranged below the middle plate 2 in a horizontal manner, the waist part of the positioning frame 19 is respectively provided with a connecting lug 20 which protrudes outwards, the end parts are respectively provided with a V-shaped groove 21 in a pair manner, a connecting cap 22 is clamped in the V-shaped groove 21, the bottom of the connecting cap 22 is connected with a circuit board 23 arranged on the inner wall of the driving shell 3 through a lead, the surface of the connecting cap 22 is connected with an armature 24 in an abutting mode, the upper portion of the other end of the armature 24 is hinged with the connecting lug 20, the lower portion of the other end of the armature 24 is connected with a linkage rod 25 which is horizontally arranged, the side wall of the armature 24 is electrically connected with the LED lamp bead 16, the other end of the linkage rod 25 is connected with the bottom of the triangle 26, the top of the triangle 26 is connected with a main rod 27, the main rod 27 is connected with one end of the lampshade 18 after penetrating through the positioning frame 19, the other end of the lampshade 18 is clamped with the positioning frame 19, wherein, the U-shaped frame 10 passes through the positioning frame 19 and is connected with a second driving motor 11 arranged on the surface of the fixed plate 17.
In the invention, the surface of the shell 1 is provided with the protective layer 28, the protective layer 28 covers the surface of the middle plate 2 and is fixedly connected with the middle plate 2, and the protective layer 28 is made of thermoplastic polyurethane and is sprayed on the surface of the middle plate 2 through injection molding. The surface of the intermediate plate 2 is provided with a protective layer 28, and the casing 1 is protected by the oil-proof and corrosion-proof properties of the protective layer 28.
In the invention, a sealing ring 29 tightly attached to the inner wall of the lampshade 18 is arranged at the joint of the connection clamping seat and the lampshade 18, bosses 30 are respectively oppositely arranged at two sides of the top of the conical plate 15, and two ends of the lampshade 18 are clamped in the bosses 30. The sealing ring 29 and the boss 30 are provided to ensure the sealing performance of the housing 1 and prevent external dust from entering the housing 1 and causing explosion inside the housing 1.
When the LED lamp works, the connecting cap 22 is in abutting connection with the armature 24, the LED lamp works normally, heat is gradually accumulated in the shell 1 along with illumination of the LED lamp bead 16, at the moment, the second driving motor 11 is started, the second driving motor 11 drives the U-shaped frame 10 to rotate by taking the vertical axis as the center, as the U-shaped frame 10 is coaxially connected with the micro fan 8, the micro fan 8 also rotates, external cold air flow enters the end space of the radiating fin 12, along with the rotation of the U-shaped frame 10, the heat in the conical plate 15 is upwards accumulated along the heat conducting column 14, after the U-shaped frame 10 rotates for one circle, the first driving motor 5 is started, the first driving motor 5 drives the L-shaped transmission rod 6 to deflect, the L-shaped transmission rod 6 prizes the end part of the trapezoidal rod 7, the micro fan 8 is converted from horizontal arrangement to angular arrangement, the rotating ring 9 at the bottom of the micro fan 8 is converted from vertical arrangement to inclination, thereby exposing the surface gap of the middle plate 2, and further exchanging cold and hot air flows at two sides of the middle plate 2 to realize the heat dissipation of the closed space;
according to the LED lamp, the protective lampshade 18 is arranged, the LED lamp bead 16 is protected from outside by the lampshade 18, explosive gas or powder in an external environment is isolated from entering the shell 1, explosion of the explosive gas or powder caused by heat or sparks generated when components inside the shell 1 work is prevented, the LED lamp is protected preliminarily, when the protective lampshade 18 explodes, the main rod 27 loses end tension and moves towards the positioning frame 19, the triangular plate 26 is driven to move towards the right end, the triangular plate 26 drives the linkage rod 25 to move towards the right, the armature 24 deflects along a connection point of the armature 24 and the connection lug 20, the armature 24 is disconnected from the connection cap 22, power-off protection is immediately performed, protection is performed on the components inside the shell 1, and heat dissipation and flame-proof performance are achieved synchronously.
Therefore, the invention is not to be limited to the specific embodiments, but rather, all equivalent changes and modifications in the shapes, structures, characteristics and spirit of the invention are intended to be included within the scope of the appended claims.

Claims (6)

1. The utility model provides an explosion-proof LED lamp, includes the casing, locates the inside radiator unit of casing and locates the protection subassembly of casing bottom, the casing middle part is equipped with the intermediate lamella, the intermediate lamella surface is equipped with the drive shell, be equipped with the baffle that separates casing internal partitioning for two spaces in the drive shell, its characterized in that: the heat dissipation assembly penetrates through the partition plate and comprises a first driving motor transversely arranged on one side of the partition plate, an output shaft of the first driving motor is connected with an L-shaped transmission rod arranged on the other side of the partition plate, the tail end of the L-shaped transmission rod is connected with a trapezoidal rod with a downward port, a miniature fan is inserted into a port at the other end of the trapezoidal rod and is arranged outside the driving shell, a connecting shaft at the bottom of the miniature fan penetrates through the port of the trapezoidal rod and then is inserted into the lower part of the middle plate to be rotatably connected with the rotating ring, two ends of the rotating ring are connected with the U-shaped frame, and the middle part of the bottom wall of the U-shaped frame is connected with a second driving motor;
the miniature fan comprises a middle plate, a shell, a plurality of heat dissipation fins, a plurality of miniature fans and a plurality of LED lamp beads, wherein the surface of the middle plate is uniformly provided with the plurality of heat dissipation fins along the circumferential direction, through holes are formed between every two adjacent heat dissipation fins and the shell to form a heat dissipation area, the end parts of the heat dissipation fins close to the center of the middle plate are integrated to form a covering surface and cover the miniature fans, the bottoms of the heat dissipation fins are fixedly connected with the middle plate, heat conduction columns extend towards the back of the middle plate, the heat conduction columns are distributed at the bottom of the middle plate in a conical shape, the periphery of each heat conduction column is sleeved with a conical plate fixedly connected with the bottom of the middle plate, the surface of each conical plate is provided with the plurality of LED lamp beads, the bottom of each conical plate is provided with a horizontally placed fixing plate, the surface of each fixing plate is provided with a second driving motor, the bottom of each fixing plate is connected with a lampshade through a connecting clamping seat, and two ends of the top of the lampshade are inserted into the conical plate and are in abutting connection through a protection component;
the protection component is the locating rack that the level set up including locating the intermediate lamella below, the locating rack waist is equipped with outside convex engaging lug respectively, and the tip is respectively to being equipped with the V-arrangement groove, the V-arrangement inslot card is equipped with the connection cap, connect cap bottom through the wire with arrange the circuit board on the drive shell inner wall in and be connected, it is connected with armature to connect the conflict of cap surface, armature other end upper portion is articulated with the engaging lug, and the lower part is connected with the gangbar of level setting, armature lateral wall and LED lamp pearl electric connection, the gangbar other end is connected with the set-square bottom, the set-square top is connected with the mobile jib, the mobile jib is connected with lamp shade one end after passing the locating rack, the lamp shade other end and locating rack looks joint.
2. The explosion-proof LED lamp of claim 1, wherein: the surface of the shell is provided with a protective layer, and the protective layer covers the surface of the middle plate and is fixedly connected with the middle plate.
3. The explosion-proof LED lamp of claim 2, wherein: the protective layer is made of thermoplastic polyurethane and is sprayed on the surface of the middle plate through injection molding.
4. The explosion-proof LED lamp of claim 1, wherein: the U-shaped frame penetrates through the positioning frame and then is connected with a second driving motor arranged on the surface of the fixing plate.
5. The explosion-proof LED lamp of claim 1, wherein: and a sealing ring tightly attached to the inner wall of the lampshade is arranged at the joint of the connecting clamping seat and the lampshade.
6. The explosion-proof LED lamp of claim 1, wherein: the two sides of the top of the conical plate are respectively provided with a boss, and the two ends of the lampshade are clamped in the bosses.
CN202210786211.7A 2022-07-06 2022-07-06 Explosion-proof LED lamp Pending CN114838310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210786211.7A CN114838310A (en) 2022-07-06 2022-07-06 Explosion-proof LED lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210786211.7A CN114838310A (en) 2022-07-06 2022-07-06 Explosion-proof LED lamp

Publications (1)

Publication Number Publication Date
CN114838310A true CN114838310A (en) 2022-08-02

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ID=82575285

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CN202210786211.7A Pending CN114838310A (en) 2022-07-06 2022-07-06 Explosion-proof LED lamp

Country Status (1)

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CN (1) CN114838310A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116481003A (en) * 2023-04-26 2023-07-25 张若诚 Novel LED explosion-proof lighting device
CN118912467A (en) * 2024-08-26 2024-11-08 惠州市创舰实业有限公司 Automatic dust-proof LED working lamp for cooling

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009204291A (en) * 2008-02-29 2009-09-10 Daikin Ind Ltd Heat source unit of refrigerating device
RU2392538C1 (en) * 2008-11-21 2010-06-20 Виктор Викторович Сысун Protected light fixture on powerful light diodes
WO2012155816A1 (en) * 2011-05-18 2012-11-22 广州南科集成电子有限公司 Dustproof and waterproof multipurpose led-light power source assembly and dustproof and waterproof led light
CN109431285A (en) * 2018-11-29 2019-03-08 林剑武 A kind of power-off protection control device of the armature antirust of water dispenser contact switch
WO2019166170A1 (en) * 2018-02-27 2019-09-06 Dehn Se + Co Kg Overvoltage protection arrangement consisting of a horn spark gap accommodated in an insulating housing
CN111993920A (en) * 2020-09-30 2020-11-27 郑州三骏能源科技有限公司 New energy automobile fills electric pile with heat dissipation mechanism
CN112856260A (en) * 2021-01-19 2021-05-28 南京坦索光电有限公司 Explosion-proof lamp and sealing structure thereof
CN113405050A (en) * 2021-07-09 2021-09-17 江苏伏特照明集团有限公司 Explosion-proof type safe LED street lamp

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009204291A (en) * 2008-02-29 2009-09-10 Daikin Ind Ltd Heat source unit of refrigerating device
RU2392538C1 (en) * 2008-11-21 2010-06-20 Виктор Викторович Сысун Protected light fixture on powerful light diodes
WO2012155816A1 (en) * 2011-05-18 2012-11-22 广州南科集成电子有限公司 Dustproof and waterproof multipurpose led-light power source assembly and dustproof and waterproof led light
WO2019166170A1 (en) * 2018-02-27 2019-09-06 Dehn Se + Co Kg Overvoltage protection arrangement consisting of a horn spark gap accommodated in an insulating housing
CN109431285A (en) * 2018-11-29 2019-03-08 林剑武 A kind of power-off protection control device of the armature antirust of water dispenser contact switch
CN111993920A (en) * 2020-09-30 2020-11-27 郑州三骏能源科技有限公司 New energy automobile fills electric pile with heat dissipation mechanism
CN112856260A (en) * 2021-01-19 2021-05-28 南京坦索光电有限公司 Explosion-proof lamp and sealing structure thereof
CN113405050A (en) * 2021-07-09 2021-09-17 江苏伏特照明集团有限公司 Explosion-proof type safe LED street lamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116481003A (en) * 2023-04-26 2023-07-25 张若诚 Novel LED explosion-proof lighting device
CN116481003B (en) * 2023-04-26 2023-11-17 博山中美防爆电机电器有限公司 Novel LED explosion-proof lighting device
CN118912467A (en) * 2024-08-26 2024-11-08 惠州市创舰实业有限公司 Automatic dust-proof LED working lamp for cooling

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Application publication date: 20220802

RJ01 Rejection of invention patent application after publication