An explosion-proof LED fluorescent lamp

Abstract

The utility model relates to the technical field of explosion -proof electrical equipment for explosive environment, especially to a kind of explosion -proof fluorescent lamp of explosion -proof LED, solve the shortcomings of explosion -proof electrical equipment for explosive environment in prior art, including light source component and explosion -proof component;The light source component is set to the inside of explosion -proof component;The explosion -proof component includes a pair of symmetrically arranged shell structure and lampshade, the shell structure includes end cap and shell, the side of end cap extends and is provided with protruding portion, the protruding portion outer side surface is provided with external thread, the protruding portion and shell opening end inside are compatible and are connected with the thread of both;The inside of shell extends and is provided with the annular support of installable light source component, the utility model structure is safer, installation is more convenient, performance is more excellent, can be widely applied in petroleum, chemical industry, coal mine, military industry and other dangerous places existing explosive gas or dust, for lighting and safety warning.

Description

Technical Field

[0001] This utility model relates to the technical field of explosion-proof electrical equipment for explosive atmospheres, specifically an explosion-proof LED fluorescent lamp. Background Technology

[0002] In complex and dangerous environments such as petroleum, chemical, coal mining, and military industries, there are often explosive gases or dust, which places extremely high demands on the explosion-proof and protective performance of electrical equipment. Traditional lighting equipment is difficult to meet the safety requirements.

[0003] A straight-tube LED explosion-proof fluorescent lamp is disclosed in the existing patent publication number CN208025150U, which includes a clamping nut, a flat washer, a sealing plug, an M-type internal hexagonal bolt, an end cap, a glass pressure ring, a first sealing ring, a sleeve, tempered glass, a light source board, a heat sink, a switching power supply, a terminal block, and a second sealing ring; the clamping nut, the flat washer, and the sealing plug form an explosion-proof connector, which is connected to the end cap by threads, and the heat sink is fixed in the tempered glass by a slot, and the interlayer between the heat sink and the tempered glass is heat-conducting using high-efficiency thermal grease.

[0004] In the above technical solution, the cost is reduced by using an LED light source board instead of a T8 lamp tube. However, the end cover is connected to the sleeve by an internal hex bolt, requiring tools such as an internal hex wrench and screwdriver to disassemble the end cover or replace the glass cover, making disassembly and assembly inconvenient. Furthermore, the light source board is fixed to the heat sink, and the heat sink is fixed to the inside of the tempered glass. The thermal expansion coefficients of tempered glass and aluminum alloy are quite different. Under long-term high-temperature cycling, gaps are likely to appear in the thermal grease between the two, resulting in a decrease in thermal conductivity. Moreover, if the tempered glass is damaged, the LED light source board connected to it will be directly damaged.

[0005] Therefore, an explosion-proof LED fluorescent lamp was designed, which has a safer structure, is easier to install, and has better performance. It can be widely used in dangerous places with explosive gases or dust, such as petroleum, chemical, coal mine, and military industries, for lighting and safety warning. Utility Model Content

[0006] The purpose of this invention is to provide an explosion-proof LED fluorescent lamp to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof LED fluorescent lamp, comprising a light source assembly and an explosion-proof assembly; The light source assembly is disposed inside the explosion-proof assembly; The explosion-proof assembly includes a pair of symmetrically arranged shell structures and lamp covers, which are glued together. The shell structure includes an end cap and a housing. A protrusion extends from one side of the end cap. An external thread is provided on the outer surface of the protrusion. The protrusion is adapted to the interior of the opening end of the housing and is threadedly connected to both. The housing has an internally extending ring-shaped bracket for mounting a light source assembly, and the ring-shaped bracket is connected to the lampshade.

[0008] According to the above technical solution, the light source assembly includes at least one LED light source board, which is elongated and has a number of LED beads integrated on its surface.

[0009] According to the above technical solution, a heat dissipation base plate is connected to the side of the LED light source board away from the LED lamp beads, and adapter brackets are connected to both ends of the heat dissipation base plate. The adapter brackets are connected to the ring brackets.

[0010] According to the above technical solution, the adapter bracket includes several branch vertical surfaces, one end of which is vertically connected to an integrated connecting plate, and each branch vertical surface corresponds to a single heat dissipation base plate and is connected by bolts. The annular bracket extends inward with a protruding ear plate, which is connected to both ends of the integrated connecting plate by bolts.

[0011] According to the above technical solution, a wiring terminal is provided on one side of the integrated connection plate, and the wiring terminal is connected to the integrated connection plate by bolts.

[0012] According to the above technical solution, the adapter bracket is configured as an L-shaped structure. The bottom of the adapter bracket is connected to the heat dissipation base plate by bolts. The top of the adapter bracket is bolted to a fixing plate. The outer side of the fixing plate is integrally extended with several overlapping surfaces. The annular bracket has several overlapping grooves on one side. The overlapping surfaces and overlapping grooves are adapted to each other and are connected by bolts.

[0013] According to the above technical solution, a wiring terminal is provided on one side of the fixed frame plate, and the wiring terminal is connected to the fixed frame plate by bolts.

[0014] According to the above technical solution, a clip structure is provided on the side of the heat dissipation base plate near the LED light source board, and the clip structure clips the LED light source board onto the heat dissipation base plate.

[0015] According to the above technical solution, a driving power supply is bolted to the side of the heat dissipation base plate away from the LED light source board, and the driving power supply is positioned close to the wiring terminal.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are: The end caps with threaded connections allow for manual disassembly and assembly by workers. The separate design of the light source component and the lampshade avoids reduced heat dissipation efficiency due to thermal expansion and also prevents damage to the light source component when the lampshade is damaged. The structure is reasonably designed. By integrating the ring bracket with the housing, and simultaneously serving as the mounting base for the light source components and lampshade, the structural utilization rate is further improved, and the vibration and impact resistance is stronger. It also avoids the decrease in thermal conductivity and structural loosening caused by the mismatch in thermal expansion of different materials in the light source components. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the explosion-proof LED fluorescent lamp of this utility model; Figure 2 This is a schematic cross-sectional view of the present invention; Figure 3 This is a partial three-dimensional sectional view of the outer shell structure of this utility model; Figure 4 This is a schematic diagram of the multi-light source component adapter bracket of this utility model; Figure 5 This is a schematic diagram of the single-light source component adapter bracket of this utility model; Figure 6 This is a three-dimensional schematic diagram of the driving power supply of this utility model; In the diagram: 1. Outer shell structure; 101. End cap; 102. Shell; 103. Protrusion; 2. Circular bracket; 201. Protruding ear plate; 3. Light source assembly; 301. LED light source board; 302. Heat dissipation base plate; 303. Adapter bracket; 304. Branch vertical surface; 305. Integrated connecting plate; 306. Fixing bracket plate; 4. Lampshade; 5. Wiring terminals; 6. Clip structure; 7. Driver power supply. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-6 The present invention provides a technical solution: an explosion-proof LED fluorescent lamp, comprising a light source assembly 3 and an explosion-proof assembly; The light source assembly 3 is located inside the explosion-proof assembly; The explosion-proof assembly includes a pair of symmetrically arranged housing structures 1 and lampshade 4, which are glued together. The housing structure 1 includes an end cap 101 and a housing 102. A protrusion 103 extends from one side of the end cap 101. An external thread is provided on the outer surface of the protrusion 103. The protrusion 103 is adapted to the interior of the opening end of the housing 102 and is threadedly connected to both. The housing 102 has an internal extension of an annular bracket 2 for mounting the light source assembly 3, and the annular bracket 2 is connected to the lampshade 4.

[0020] Specifically, the end cap 101 protrusion 103 is threaded into the housing 102 to form a stable connection, and an annular bracket 2 is set inside the housing 102 to support the light source assembly 3 and connect the lamp cover 4, thereby forming an enhanced closed explosion-proof cavity. The light source assembly 3 emits light stably inside the explosion-proof assembly to realize the lighting and warning functions. In this embodiment, the end cap 101, which is connected by threads, can be disassembled and assembled by hand by workers. The light source component 3 and the lamp cover 4 are designed to be separate, thereby avoiding the reduction in heat dissipation efficiency caused by thermal expansion and also preventing the light source component 3 from being damaged simultaneously when the lamp cover 4 is damaged. The structural design is reasonable. Furthermore, the ring bracket 2 is integrally formed with the housing 102 and also serves as the mounting base for the light source component 3 and the lampshade 4, further improving the structural utilization rate and providing stronger vibration and impact resistance. It also avoids the decrease in thermal conductivity and structural loosening of the light source component 3 caused by the mismatch of thermal expansion of different materials. Preferably, both the housing 102 and the end cap 101 are made of high-strength cast aluminum material and manufactured by precision machining. At the mating parts of the housing 102 and the end cap 101, a threaded structure that meets the requirements of sealing and stability is machined to ensure a reliable sealing effect after screwing, while ensuring the stability of the connection and preventing loosening during use. In addition, the cast aluminum material has high strength and good explosion-proof performance, which improves the safety of protection. Furthermore, the housing 102 and the end cap 101 are connected by a threaded connection. Compared with the traditional complicated screw disassembly and assembly process, during installation and maintenance, the operation can be completed simply by quickly screwing the end cap 101 and the housing 102 together or apart. This simplifies the disassembly and assembly operation, improves the convenience of installation and maintenance, greatly reduces the time and cost required for installation and maintenance, and improves work efficiency. Preferably, the lampshade 4 is made of transparent polycarbonate material, which has good impact resistance and shatter resistance. The transparent polycarbonate lampshade 4 covers the light-emitting area of ​​the light source component 3 and is sealed to the ring bracket 2 by adhesive bonding. While ensuring light transmission, it further improves the protective performance of the product and effectively prevents external impurities from entering. Furthermore, by replacing the traditional tempered glass cover with a PC transparent lampshade 4, the product's impact resistance and shatterproof performance are improved, enhancing its safety in use; and the thermal expansion coefficient of the PC material lampshade 4 is closer to that of cast aluminum, further reducing the risk of thermal deformation. Furthermore, a circular slot is provided on one side of the ring bracket 2. The lampshade 4 is inserted into the circular slot and connected by epoxy resin adhesive to ensure overall sealing. This effectively prevents dust or moisture from entering the interior, avoids damage to internal components by impurities, and improves the overall explosion-proof, dustproof and waterproof rating of the product, enabling it to be used in complex and dangerous environments.

[0021] The light source assembly 3 includes at least one LED light source board 301, which is elongated and has several LED beads integrated on its surface.

[0022] In this embodiment, multiple LED beads are integrated on the LED light source board 301 to achieve the lighting function. Compared with traditional lamp tubes, the energy consumption is lower and the lifespan of LED beads is longer, reducing the frequency and cost of light source replacement. Furthermore, by installing the LED light source board 301 inside the cast aluminum housing structure 1, good heat dissipation is achieved while ensuring protection, thus ensuring long-term stable operation of the product.

[0023] A heat dissipation base plate 302 is connected to the side of the LED light source board 301 away from the LED lamp beads. Adapter brackets 303 are connected to both ends of the heat dissipation base plate 302, and the adapter brackets 303 are connected to the ring bracket 2.

[0024] In this embodiment, the heat generated by the LED light source board 301 is further expanded by the heat dissipation base plate 302, and the heat is transferred to the ring bracket 2 through the two end adapter brackets 303, and then dissipated to the outside through the housing 102, so as to achieve the effect of rapid heat dissipation and avoid high temperature aging of the light source. Furthermore, by setting the adapter bracket 303, the modular connection between the light source assembly 3 and the ring bracket 2 is realized, which improves the ease of disassembly and assembly. In addition, the adapter bracket 303 can be adapted to light source boards of different specifications, thereby improving the product's versatility. Furthermore, by setting up an adapter bracket 303 to separate the heat dissipation base plate 302 from the annular bracket 2, the adapter bracket 303 can buffer stress through its own structural deformation, avoid structural loosening or cracking caused by direct rigid connection, and ensure long-term stability.

[0025] The adapter bracket 303 includes several branch vertical surfaces 304. One end of each branch vertical surface 304 is vertically connected to an integrated connecting plate 305. Each branch vertical surface 304 corresponds to a single heat dissipation base plate 302 and is connected by bolts. The annular bracket 2 extends inward with a protruding ear plate 201, which is connected to both ends of the integrated connecting plate 305 by bolts.

[0026] In this embodiment, each heat dissipation base plate 302 is fixed by setting branch vertical surfaces 304 to achieve modular assembly. The integrated connecting plate 305 and the protruding ear plate 201 are firmly connected by bolts to ensure structural stability. Each LED light source board 301 can be disassembled and installed separately to improve structural stability and maintenance convenience. Furthermore, by setting several branch vertical surfaces 304, if the volume of the lampshade 4 and the outer shell structure 1 allows, several LED light source boards 301 can be used simultaneously for illumination, further improving the lighting effect. They can be reasonably selected according to the site's lighting requirements, and have good adaptability. Preferably, the adapter bracket 303 is made of aluminum alloy through die casting and the surface is anodized to further improve thermal conductivity and corrosion resistance. The bolts are made of 304 stainless steel explosion-proof bolts to prevent rusting and jamming in corrosive environments.

[0027] A terminal block 5 is provided on one side of the integrated connection plate 305, and the terminal block 5 is connected to the integrated connection plate 305 by bolts.

[0028] In this embodiment, the wiring terminal 5 is fixed to the integrated connection plate 305 by bolts, and the power supply cables of each light source component 3 are centrally connected to the wiring terminal 5. The external power supply is electrically connected to the light source component 3 through the wiring terminal 5. Furthermore, the wiring terminal 5 is modularly connected to the light source assembly 3, allowing for simultaneous disassembly and assembly of the wiring and the light source assembly 3 during maintenance, ensuring electrical connection safety and improving work efficiency.

[0029] The adapter bracket 303 is designed with an L-shaped structure. The bottom of the adapter bracket 303 is connected to the heat dissipation base plate 302 by bolts. The top of the adapter bracket 303 is bolted to a fixing plate 306. The outer side of the fixing plate 306 is integrally extended with several overlapping surfaces. Several overlapping grooves are opened on one side of the annular bracket 2. The overlapping surfaces and overlapping grooves are matched and connected by bolts.

[0030] In this embodiment, the connection between the L-shaped adapter bracket 303 and the fixed bracket plate 306 is designed specifically for a single LED light source board 301. The structure is simple, improves the utilization of internal space, avoids the space waste caused by multi-branch structures, and is suitable for single light source lighting scenarios such as narrow channels or small equipment areas. Furthermore, the overlapping surfaces of the fixed bracket plate 306 and the overlapping grooves of the annular bracket 2 are adapted to each other to form a positioning structure, which can be quickly aligned during installation without calibration, and is fastened with bolts, which further improves the positioning accuracy compared to simple bolt connections; Furthermore, by setting up the L-shaped adapter bracket 303, the weight and vibration of the light source component 3 are dispersed, and the contact area between the overlapping surface and the overlapping groove is large, which further improves the overall connection strength, can resist high-frequency vibration environments such as coal mines, avoids loosening of the light source component 3, and has good stability.

[0031] A terminal block 5 is provided on one side of the fixed bracket plate 306, and the terminal block 5 is connected to the fixed bracket plate 306 by bolts.

[0032] In this embodiment, the terminal block 5 is fixed on the mounting plate 306, and the LED light source board 301 cable can be directly connected to the terminal block 5 without the need for an additional cable routing bracket, thus avoiding messy cable stacking inside the explosion-proof cavity.

[0033] A clip structure 6 is provided on the side of the heat dissipation base plate 302 near the LED light source board 301. The clip structure 6 clips the LED light source board 301 onto the heat dissipation base plate 302.

[0034] In this embodiment, the card structure 6 has a certain elastic deformation capability, which can be used to adapt to the difference in thermal expansion coefficients between the LED light source board 301 and the heat dissipation base plate 302. Under high temperature conditions, when the two expand and contract with heat, the card structure 6 can avoid the LED light source board 301 from cracking due to rigid connection through its own elasticity, thereby improving the stability of the operation of the light source assembly 3. Furthermore, a card structure 6 is provided, which, under its limiting action, further ensures that the LED light source board 301 and the heat dissipation base plate 302 are tightly attached, further ensuring the heat transfer area and realizing the rapid heat dissipation of the heat dissipation base plate 302.

[0035] The heat dissipation base plate 302 is bolted to the side away from the LED light source plate 301, and the drive power supply 7 is positioned close to the terminal block 5.

[0036] In this embodiment, the LED light source board 301, together with the driving power supply 7, forms a high-efficiency lighting system. Compared with traditional lamps, the energy consumption of this light source system is reduced by more than 50%, and the lifespan of the LED light source is extended to more than 50,000 hours, reducing the cost of frequent light source replacement. Furthermore, the drive power supply 7 is directly fixed to the other side of the heat dissipation base plate 302. While ensuring the heat dissipation effect, there is no need to add an extra power supply mounting bracket, which does not occupy internal space and avoids interference with components such as the lamp cover 4 and the ring bracket 2, thereby improving space utilization.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An explosion-proof LED fluorescent lamp, characterized in that, Including the light source assembly (3) and the explosion-proof assembly; The light source assembly (3) is disposed inside the explosion-proof assembly; The explosion-proof assembly includes a pair of symmetrically arranged shell structures (1) and lampshade (4), which are glued together. The shell structure (1) includes an end cap (101) and a housing (102). A protrusion (103) extends from one side of the end cap (101). An external thread is provided on the outer surface of the protrusion (103). The protrusion (103) is adapted to the interior of the opening end of the housing (102) and is threadedly connected to both. The housing (102) has an internally extended ring bracket (2) for mounting a light source assembly (3), and the ring bracket (2) is connected to the lampshade (4).

2. The explosion-proof LED fluorescent lamp according to claim 1, characterized in that, The light source assembly (3) includes at least one LED light source board (301), which is elongated and has several LED beads integrated on its surface.

3. The explosion-proof LED fluorescent lamp according to claim 2, characterized in that, A heat dissipation base plate (302) is connected to the side of the LED light source board (301) away from the LED lamp beads. Adapter brackets (303) are connected to both ends of the heat dissipation base plate (302). The adapter brackets (303) are connected to the ring bracket (2).

4. The explosion-proof LED fluorescent lamp according to claim 3, characterized in that, The adapter bracket (303) includes several branch vertical surfaces (304), one end of which is vertically connected to an integrated connecting plate (305). Each branch vertical surface (304) corresponds to a single heat dissipation base plate (302) and is connected by bolts. The annular bracket (2) extends inward with a protruding ear plate (201), and the two ends of the protruding ear plate (201) are connected to the integrated connecting plate (305) by bolts.

5. The explosion-proof LED fluorescent lamp according to claim 4, characterized in that, A wiring terminal (5) is provided on one side of the integrated connecting plate (305), and the wiring terminal (5) is connected to the integrated connecting plate (305) by bolts.

6. The explosion-proof LED fluorescent lamp according to claim 3, characterized in that, The adapter bracket (303) is configured as an L-shaped structure. The bottom of the adapter bracket (303) is connected to the heat dissipation base plate (302) by bolts. The top of the adapter bracket (303) is bolted to a fixing plate (306). The outer side of the fixing plate (306) is integrally extended with several overlapping surfaces. The annular bracket (2) has several overlapping grooves on one side. The overlapping surfaces and overlapping grooves are adapted to each other and are connected by bolts.

7. The explosion-proof LED fluorescent lamp according to claim 6, characterized in that, A terminal block (5) is provided on one side of the fixed frame plate (306), and the terminal block (5) is connected to the fixed frame plate (306) by bolts.

8. The explosion-proof LED fluorescent lamp according to claim 3, characterized in that, The heat dissipation base plate (302) is provided with a clip structure (6) on the side near the LED light source plate (301), and the clip structure (6) clips the LED light source plate (301) onto the heat dissipation base plate (302).

9. An explosion-proof LED fluorescent lamp according to claim 5 or 7, characterized in that, The heat dissipation base plate (302) is bolted to the side away from the LED light source plate (301) with a driving power supply (7), and the driving power supply (7) is positioned close to the terminal block (5).

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