A housing assembly and explosion-proof lamp
Patent Information
- Application Number
- CN202522523921.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-27
Smart Images
Figure CN224920350U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of explosion-proof lamp technology, specifically a housing assembly and an explosion-proof lamp. Background Technology
[0002] Explosion-proof lights are specialized lighting devices designed for flammable and explosive environments such as chemical plants, mines, and oil and gas fields. Their core function is to provide stable illumination in scenarios containing flammable gases, dust, and other hazardous substances. Through a special structural design, explosion-proof lights block ignition sources such as electrical sparks and high temperatures, effectively preventing the risk of explosions or fires during illumination. They not only meet the lighting needs of industrial production and equipment maintenance but also ensure the safety of the working environment and the lives and property of personnel, making them an indispensable safety lighting guarantee in flammable and explosive environments.
[0003] Existing explosion-proof lights typically consist of an upper housing, a lower housing, and a lampshade housing. The upper and lower housings together form a power mounting cavity for installing the power module, while the lower housing and the lampshade housing together form a lamp source mounting cavity for installing the lamp source. However, since the power module needs to be connected to an external power cord, the power cord must be introduced and housed within the power mounting cavity, resulting in messy wiring inside the cavity. Furthermore, the power cord is prone to excessive bending due to space constraints, affecting the neatness of the wiring and the reliability of long-term use.
[0004] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content
[0005] The existing explosion-proof lights mentioned above typically have an upper shell and a lower shell, which together form a power supply mounting cavity to accommodate the power module. However, since the power module needs to be connected to a power cord, the power cord is introduced and housed within the power supply mounting cavity, resulting in messy wiring within the cavity. The technical solution adopted by this utility model to solve this problem is: A housing assembly includes a housing body, the housing body comprising a first housing, a second housing, a third housing, and a lampshade housing connected in sequence, the second housing and the third housing together forming a first mounting cavity for mounting a power module, the third housing and the lampshade housing together forming a second mounting cavity for mounting a lamp source module, and interconnected wiring channels between the first housing, the second housing, the third housing, and the lampshade housing.
[0006] Furthermore, the outer periphery of the third housing is provided with a plurality of heat sinks, which are spaced apart along the circumference of the third housing.
[0007] Furthermore, a heat dissipation channel is formed between adjacent heat sinks.
[0008] Furthermore, the third housing includes an outer ring portion that connects to the heat sink, the outer ring portion and the heat sink together forming a plurality of hollow holes, and the plurality of hollow holes are connected to the heat dissipation channel.
[0009] Furthermore, the cross-section of the heat dissipation channel is stepped.
[0010] Furthermore, the third housing includes a support panel located between the first mounting cavity and the second mounting cavity, and the support panel has a plurality of support portions protruding from the side facing the first mounting cavity.
[0011] Furthermore, the support portion consists of a plurality of support ribs spaced apart along the circumference of the support panel, and the power module is placed on the support ribs so that a heat dissipation gap is formed between the power module and the support panel.
[0012] Furthermore, the first housing and the second housing are detachably connected, and the second housing and the third housing are detachably connected.
[0013] Furthermore, the lampshade housing includes a cover body and a pressure ring, the cover body being fixedly connected to the pressure ring, and the pressure ring being detachably connected to the third housing, so that the cover body is connected to the third housing through the pressure ring.
[0014] This utility model also provides an explosion-proof lamp, including a lamp body, the lamp body including a housing assembly as described above.
[0015] The beneficial effects of this utility model are as follows: This invention features a first housing, a second housing, and a third housing connected in sequence. The second and third housings together enclose a first mounting cavity for installing a power module. Compared to traditional explosion-proof lights that use an upper and lower housing to form a power mounting cavity, the three housings increase the installation space of the first mounting cavity, preventing the dense stacking of components due to limited space. Furthermore, interconnected wiring channels between the first, second, and third housings and the lamp cover housing provide a neat wiring path for the power cord. This effectively solves the problem that existing explosion-proof lights typically have an upper and lower housing that enclose a power mounting cavity to house the power module. However, since the power module needs to be connected to the power cord, the power cord is introduced and housed within the power mounting cavity, resulting in messy wiring within the cavity.
[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0017] Figure 1This is one of the structural schematic diagrams of the main body of the shell of this utility model; Figure 2 This is a cross-sectional schematic diagram of the main body of the shell of this utility model; Figure 3 This is the second schematic diagram of the structure of the shell body of this utility model; Figure 4 for Figure 3 An enlarged view of part A marked on the map; Figure 5 This is an exploded view of the main body of the shell of this utility model; Figure 6 This is a schematic diagram of the structure of the third housing of this utility model; Figure 7 This is the third schematic diagram of the structure of the shell body of this utility model. Detailed Implementation
[0018] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0019] like Figures 1 to 7 The housing assembly shown includes a housing body, which includes a first housing 1, a second housing 2, a third housing 3, and a lampshade housing 4 connected in sequence. The second housing 2 and the third housing 3 together enclose a first mounting cavity 51 for installing a power module, and the third housing 3 and the lampshade housing 4 together enclose a second mounting cavity 52 for installing a lamp source module. The first housing 1, the second housing 2, the third housing 3, and the lampshade housing 4 are provided with interconnected wiring channels. This invention features a first housing, a second housing, and a third housing connected in sequence. The second and third housings together enclose a first mounting cavity for installing a power module. Compared to traditional explosion-proof lights that use an upper and lower housing to form a power mounting cavity, the three housings increase the installation space of the first mounting cavity, preventing the dense stacking of components due to limited space. Furthermore, interconnected wiring channels between the first, second, and third housings and the lamp cover housing provide a neat wiring path for the power cord. This effectively solves the problem that existing explosion-proof lights typically have an upper and lower housing that enclose a power mounting cavity to house the power module. However, since the power module needs to be connected to the power cord, the power cord is introduced and housed within the power mounting cavity, resulting in messy wiring within the cavity.
[0020] Specifically, the first housing 1 is provided with a first through hole 11 communicating with the outside, the second housing 2 is provided with a second through post 21 penetrating its wall thickness, and the third housing 3 is provided with a third through post 36 penetrating its wall thickness. Both the second through post 21 and the third through post 36 are provided with through holes inside. This allows the external power cord to enter the interior of the first housing 1 through the first through hole 11, and then enter the first mounting cavity 51 through the second through post 21 to connect with the power module. The connection line between the power module and the lamp source module extends from the first mounting cavity 51 to the second mounting cavity 52 through the third through post 36.
[0021] Optionally, in some embodiments, the first housing 1, the second housing 2, the third housing 3 and the lampshade housing 4 are connected sequentially in the horizontal direction, which is beneficial for adapting to side wall installation scenarios, helps to save vertical space, and the horizontal wiring facilitates later wiring inspection and replacement.
[0022] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the first housing 1, the second housing 2, the third housing 3, and the lampshade housing 4 are connected in sequence along the vertical direction, and the power cord passes through the first mounting cavity 51 and the second mounting cavity 52 from top to bottom. This is beneficial for adapting to ceiling or column installation scenarios, and can be vertically suspended from the top of the factory or fixed to the top of the column without occupying horizontal working space. Moreover, the vertical layout helps the heat inside the cavity to dissipate naturally, effectively improving the stability of the equipment.
[0023] like Figures 1 to 7 The outer periphery of the third housing 3 shown is provided with a plurality of heat sinks 31, and the plurality of heat sinks 31 are arranged at intervals along the circumference of the third housing 3; Furthermore, multiple heat sinks 31 are spaced apart along the outer periphery of the third housing 3, which helps to increase the heat dissipation area of the outer surface of the third housing 3. This helps the heat generated by the power module and the lamp module during operation to be quickly conducted through the third housing 3 and dissipated to the external environment, thereby reducing the internal temperature rise and effectively improving the thermal stability and service life of the lamp.
[0024] Furthermore, the heat sink 31 is integrally formed with the third housing 3, which not only avoids additional assembly processes but also enhances the overall structural strength and impact resistance of the third housing 3, which helps to reduce the deformation of the explosion-proof lamp caused by collisions during transportation and installation. Secondly, the spaced heat sink 31 can disperse external forces and further improve the deformation resistance of the third housing 3, thereby ensuring that the explosion-proof sealing performance is not affected.
[0025] Specifically, multiple heat sinks 31 are inclinedly extended from the outer side wall of the third housing 3 in a direction away from the side wall, so that a guiding inclined gap is formed between the heat sinks 31 and the outer periphery of the third housing 3. This structure not only increases the effective heat dissipation area, but also optimizes the air flow path, which is conducive to the rapid rise and discharge of hot air along the inclined channel, and helps to enhance the natural convection heat dissipation effect.
[0026] like Figures 1 to 7 A heat dissipation channel 32 is formed between adjacent heat sinks 31 as shown; Furthermore, the heat dissipation channel 32 formed between adjacent heat sinks 31 provides a clear and continuous flow path for hot air, which is conducive to promoting natural convection heat dissipation. The heat generated when the explosion-proof lamp is working is conducted to the heat sink 31 through the third housing 3. The hot air flows upward along the heat dissipation channel 32 and is discharged. The cold air is then replenished from the bottom, thereby forming a stable airflow circulation, which helps to improve the passive heat dissipation efficiency and avoids the performance and life of the power module or lamp module due to excessive temperature rise.
[0027] Furthermore, the spaced arrangement of the heat dissipation channels 32 avoids the airflow blockage problem caused by excessive density of heat sinks 31, which helps to ensure that the surface of each heat sink 31 can fully contact the flowing air and improve the actual utilization rate of the heat dissipation area. Compared with a closed or solid structure, it effectively optimizes aerodynamic performance without increasing additional energy consumption, making heat dissipation more uniform and efficient.
[0028] Furthermore, the heat dissipation channel 32 is naturally enclosed by adjacent heat sinks 31, eliminating the need for additional airflow guiding components or complex structures. This facilitates integral molding with the third housing 3, which helps simplify the manufacturing process and reduce assembly costs. Secondly, the regular arrangement of the heat dissipation channel 32 helps maintain the neat appearance and symmetrical structure of the third housing 3.
[0029] like Figures 1 to 7 The third housing 3 shown includes an outer ring portion 33 that connects to the heat sink 31. The outer ring portion 33 and the heat sink 31 together form a plurality of hollow holes 34, and the plurality of hollow holes 34 are connected to the heat dissipation channel 32. Furthermore, the multiple perforated holes 34 formed by the outer ring 33 and the heat sink 31 are connected to the heat dissipation channels 32 between adjacent heat sinks 31, thereby forming a through three-dimensional heat dissipation network. This structure not only expands the ventilation area of the outer surface of the third housing 3, but also enhances the airflow capability in the radial and axial directions, so that heat can be efficiently dissipated from multiple directions, which is conducive to improving the overall heat dissipation efficiency and helps to reduce the internal temperature rise of the lamp.
[0030] Furthermore, the outer ring 33, as a ring structure connecting each heat sink 31, not only enhances the overall rigidity and structural stability of the third housing 3, but also provides a reliable support foundation for the heat sink 31, preventing it from deforming or breaking during transportation or use; at the same time, the regular arrangement of the perforated holes 34 makes the stress distribution more uniform, which is beneficial to improving the impact resistance and vibration resistance of the third housing 3.
[0031] Furthermore, since explosion-proof lights are often used outdoors or in humid environments, rainwater and dew tend to accumulate on the surface of the third housing 3. The connection between the heat dissipation channel 32 and the perforated hole 34 forms an efficient drainage mechanism. Rainwater or accumulated water can flow into the heat dissipation channel 32 along the inclined heat sink 31 and then be quickly discharged through the perforated hole 34, avoiding the situation of water lingering on the surface of the third housing 3. This not only prevents long-term immersion of water from causing corrosion of the housing and aging of the seals, but also prevents water from entering the cavity and causing short circuits in the power module and lamp module. This helps ensure that the explosion-proof light can still operate safely and stably in harsh environments such as rain and high humidity.
[0032] like Figures 1 to 7 The cross-section of the heat dissipation channel 32 shown is stepped; Furthermore, the stepped cross-section forms a two-stage stepped structure in the heat dissipation channel 32, which helps to increase the surface area of the heat dissipation channel 32 and enhance the contact efficiency with the flowing air, thereby improving the heat conduction and convection heat dissipation capabilities. Secondly, the stepped structure can disturb the airflow, break the boundary layer, and promote the more efficient transfer of heat from the third shell 3 to the outside, effectively improving the passive heat dissipation performance.
[0033] Furthermore, the stepped cross-section forms a staggered flow path, which is conducive to adapting to the needs of outdoor humid environments; rainwater or accumulated water flows quickly along the steps under the action of gravity, avoiding stagnation in the heat dissipation channel 32. The step difference accelerates the water flow speed, and with the connection with the hollow hole 34, water can be quickly discharged outside the third housing 3, preventing the power module and light source module from short-circuiting due to moisture, which helps to ensure safe use in severe weather.
[0034] Specifically, the heat dissipation channel 32 includes a first stepped surface 321, a connecting sidewall 322, and a second stepped surface 323. The first stepped surface 321 and the second stepped surface 323 are arranged in a horizontal direction, with the first stepped surface 321 located above the second stepped surface 323. The connecting sidewall 322 is vertically connected between the first stepped surface 321 and the second stepped surface 323, forming a channel structure with a stepped cross-section. This structure not only expands the heat dissipation contact area and improves heat exchange efficiency through two levels of horizontal surfaces, but also helps guide rainwater or condensate to fall down the heat dissipation channel 32 step by step, avoiding water accumulation and achieving the dual effect of enhancing heat dissipation and optimizing drainage.
[0035] Optionally, in some embodiments, the second step surface 323 is arranged horizontally, and its cross-section is in the shape of an "I". The straight structure is not only easy to process and easy to form, but also provides a stable contact interface for the flowing air, thereby forming a clear laminar flow guidance. Secondly, the horizontally arranged step surface can effectively receive and laterally guide the liquid from above, so that it flows smoothly to the hollow hole 34, avoiding the local accumulation of liquid in the heat dissipation channel 32, and taking into account both basic heat dissipation and drainage functions.
[0036] Optionally, in some embodiments, the second step surface 323 is inclined. This inclined structure can significantly reduce the resistance to fluid flow and accelerate air circulation to improve local heat dissipation efficiency. Secondly, the inclined surface provides a clear guiding path for liquid discharge, and can use gravity to make rainwater or condensate slide more quickly into the hollow hole 34 and drain away, effectively reducing the residence time of liquid in the heat dissipation channel 32, which is suitable for rainy or humid environments that are prone to water accumulation.
[0037] Optionally, in some embodiments, the second step surface 323 is in the shape of a "concave" groove. The groove structure can collect and guide the liquid, especially in the case of high flow rate or splash water inlet, it can effectively collect the scattered droplets and guide them to the hollow hole 34 for discharge, avoiding the splashing or overflow of the liquid; secondly, the groove shape also enhances the structural rigidity of the second step surface 323 to a certain extent.
[0038] like Figures 1 to 7 The third housing 3 shown includes a support panel 35, which is located between the first mounting cavity 51 and the second mounting cavity 52. The support panel 35 has a plurality of support portions protruding from the side facing the first mounting cavity 51. Furthermore, the support protrudes from the side of the bearing panel 35 facing the first mounting cavity 51, directly abutting against the power module to form multi-point support. This not only enhances the load-bearing capacity and structural rigidity of the bearing panel 35 and prevents long-term deformation, but also fixes the position of the power module, preventing the module from shifting due to vibration or collision during transportation or use, ensuring the stability of the connection between the power module and the power cord, and reducing the risk of failure caused by loose wiring.
[0039] Furthermore, the light source module is often installed on the side of the carrier panel 35 near the second mounting cavity 52, and the power module is installed on the support, naturally forming a gap between it and the carrier panel 35. This avoids the bottom of the power module directly contacting the carrier panel 35, which would cause heat accumulation. It is conducive to air circulation and heat conduction to the surrounding structure, which helps to improve heat dissipation efficiency and ensures the stable operation of the power module in high temperature or enclosed environments.
[0040] Optionally, in some embodiments, the support consists of multiple independent columnar protrusions evenly distributed on the bearing panel 35, with mounting holes at their top ends; the power module is connected to the support column via fasteners, and a through three-dimensional cavity is formed between the bottom of the power module and the bearing panel 35; this structure has clear support points and concentrated force, making it suitable for heavier power modules; at the same time, the space between the columns helps cables to pass through from below, providing high wiring flexibility.
[0041] Optionally, in some embodiments, the support is an L-shaped protrusion structure, consisting of a vertical support wall and a horizontal support surface, forming a "slot"-shaped mounting position; the edge of the power module can be directly embedded into the slot to achieve screwless quick installation.
[0042] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the support portion is a strip-shaped protrusion extending circumferentially along the support panel 35, with multiple support ribs 351 spaced apart. The power module is fixed to its surface by screws or clips. This structure is simple to manufacture and can be integrally die-cast with the support panel 35. It not only provides stable support but also forms airflow gaps between the ribs, which is beneficial for heat dissipation and wiring at the bottom.
[0043] like Figures 1 to 7 The support portion shown consists of a plurality of support ribs 351 spaced apart along the circumference of the bearing panel 35. The power module is placed on the support ribs 351 so that a heat dissipation gap is formed between the power module and the bearing panel 35. Furthermore, multiple supporting ribs 351 are distributed circumferentially along the support panel 35. After the power module is placed on it, a ring-shaped or partially through heat dissipation gap is naturally formed between the bottom of the power module and the support panel 35. The heat dissipation gap allows air to circulate under the power module, promoting the dissipation of heat outward through convection and conduction. This avoids heat accumulation caused by the power module being in close contact with the support panel 35, which helps to reduce the operating temperature rise and improve the long-term operational stability of the power module in the explosion-proof light's enclosed environment.
[0044] Furthermore, the interval area between the supporting ribs 351 can serve as a routing channel for power lines or connecting cables, allowing cables to pass through the bottom of the power module or be led out along the gap, avoiding cable stacking on top of or around the power module and reducing bending and interference. Secondly, the circumferentially distributed rib structure provides multi-point support for the power module, ensuring stable installation and facilitating alignment and fixation. For example, the use of screws or clips can improve assembly efficiency and reliability.
[0045] Furthermore, the supporting rib 351, as a reinforcing structure that protrudes integrally from the bearing panel 35, not only improves the local rigidity and deformation resistance of the bearing panel 35, but also effectively distributes the weight load of the power module, preventing the bearing panel from denting or cracking due to vibration or impact. Compared with thickening the entire surface or adding independent supports, it reduces the overall weight while ensuring strength.
[0046] Furthermore, the supporting ribs 351 extend from the inner wall of the third housing 3 toward the third wiring post 36 located in the central area of the third housing 3, so that multiple supporting ribs 351 are distributed radially or clustered. This not only provides stable support for the power module and forms a bottom heat dissipation gap, but also effectively guides the power line to be laid out in an orderly manner along the gap between the supporting ribs after being led out from the third wiring post 36. At the same time, it optimizes the internal space layout of the third housing 3, which helps to improve assembly efficiency and wiring regularity.
[0047] like Figures 1 to 7 The first housing 1 and the second housing 2 shown are detachably connected, and the second housing 2 and the third housing 3 are detachably connected; Furthermore, the detachable connection allows for segmented assembly or disassembly between the first housing 1 and the second housing 2, as well as between the second housing 2 and the third housing 3. When installing the power module, the lamp module, or performing internal maintenance, users do not need to disassemble the entire lamp; they only need to open the corresponding housing connection to quickly access the target chamber. Especially in explosion-proof lamp applications, the modular design significantly shortens maintenance time, helps reduce operational complexity, and effectively improves on-site maintenance efficiency.
[0048] Furthermore, during the production stage, the shells can be processed and inspected in sections according to their type, reducing processing difficulty and the defect rate. During transportation, the shells can be disassembled and stacked to reduce packaging volume and transportation space occupation, thereby reducing transportation costs. At the same time, disassembling and transporting the shells separately can prevent damage to components caused by collisions during transportation, which is beneficial to improving the safety of equipment transportation.
[0049] Optionally, the connecting end of the first housing 1 is provided with an external thread, the two ends of the second housing 2 are respectively provided with an internal thread (adapted to the external thread of the first housing 1) and an external thread, and the connecting end of the third housing 3 is provided with an internal thread (adapted to the external thread of the second housing 2); during assembly, the threads are precisely engaged and fixed by rotating the first housing 1 and the second housing 2, and the second housing 2 and the third housing 3; furthermore, a sealing ring is fitted at the connection to enhance the explosion-proof sealing performance.
[0050] Optionally, the connecting ends of the first housing 1 and the third housing 3 are provided with elastic buckles (with wedge-shaped blocks), and the two ends of the second housing 2 are provided with corresponding slots (compatible with the blocks). During assembly, the housings are joined together and pressed, and the blocks of the elastic buckles are embedded in the slots to form a limiting and fixing mechanism. Furthermore, a sealing groove is provided at the connection, and a built-in sealing ring ensures a seal. During disassembly, the housings can be separated by pressing the elastic buckles to release the blocks, without the need for tools, making the operation highly efficient.
[0051] Optionally, the connecting ends of the first housing 1, the second housing 2, and the third housing 3 are all provided with annular flanges with bolt holes evenly distributed on the flanges. During assembly, the flanges of adjacent housings are aligned and fixed by fastening bolts (with nuts and flat washers) that pass through the bolt holes. Metal spiral wound gaskets or rubber sealing gaskets are sandwiched between the flanges. This connection method has strong load-bearing capacity and excellent sealing performance, and can withstand harsh working conditions such as vibration and impact.
[0052] Optionally, the second housing 2 is provided with cylindrical positioning pins at both ends, and the connection ends of the first housing 1 and the third housing 3 are provided with positioning grooves (with elastic locking pieces); during assembly, the positioning pins are inserted into the positioning grooves, and the elastic locking pieces are engaged in the annular grooves of the pins to achieve fixation.
[0053] Optionally, the first housing 1 is provided with several first positioning posts on one side, and the third housing 3 is also provided with several third positioning posts on one side. The two end faces of the second housing 2 are respectively provided with positioning grooves that match the first positioning posts and the third positioning posts. During assembly, the positioning posts of the first housing 1 and the third housing 3 are respectively inserted into the positioning grooves on both sides of the second housing 2 to achieve precise alignment of the three in the circumferential and axial directions. Then, the housings are fastened together by bolts engaging with the corresponding threaded holes.
[0054] like Figures 1 to 7 The lampshade housing 4 shown includes a cover body 41 and a pressure ring 42. The cover body 41 is fixedly connected to the pressure ring 42, and the pressure ring 42 is detachably connected to the third housing 3, so that the cover body 41 is connected to the third housing 3 through the pressure ring 42. Furthermore, by fixing the cover 41 to the pressure ring 42 (e.g., by bonding, ultrasonic welding, or integral molding), and then detachably connecting the pressure ring 42 to the third housing 3 (e.g., by screws, clips, or threads), the entire lamp cover housing 4 can be installed or removed as a single module. When replacing the light source module or cleaning the cover 41, the user only needs to loosen the connection between the pressure ring 42 and the third housing 3 to remove the entire lamp cover housing 4. The operation is simple and avoids the risk of sealing failure or glass breakage caused by disassembling the cover separately.
[0055] Furthermore, the pressure ring 42 secures the cover 41 to the third housing 3 by means of multiple fastening points, such as evenly distributed bolts, thereby dispersing the external force on the cover 41 and preventing the cover 41 from loosening or falling off due to vibration or collision. At the same time, the pressure ring 42 can enhance the structural strength of the edge of the cover 41, reduce the risk of breakage caused by external impact, and ensure the protection effect of the light source module.
[0056] Furthermore, by fixing the cover 41 to the pressure ring 42 and detachably connecting the pressure ring 42 to the third housing 3, the third housing 3 does not need to be directly adapted to the structure of the cover 41. Instead, by replacing the pressure ring 42-cover 41 combination of different specifications, it can match a variety of sizes or types of cover 41. Thus, without changing the main structure of the third housing 3, it helps to improve the versatility and flexibility of the lamp and meet the customized needs of diverse application scenarios.
[0057] like Figures 1 to 7 An explosion-proof lamp is shown, including a lamp body, the lamp body including a housing assembly as described above; Furthermore, by setting a housing assembly on the lamp body, the explosion-proof lamp maintains its overall compactness while possessing excellent heat dissipation performance, orderly internal wiring, reliable modular assembly, and efficient environmental adaptability. Specifically, by separating the power module and the lamp source module into independent chambers enclosed by multiple housing segments, and cooperating with the connecting wiring channels running through each housing, the problems of messy wiring and limited space in the power installation cavity of traditional explosion-proof lamps are effectively solved. The stepped heat dissipation channel 32 and the hollow hole 34 set on the outer periphery work together to achieve the dual functions of heat dissipation and drainage, which is conducive to improving the reliability of outdoor use. The detachable connection between each housing and the pressure ring mounting structure of the lamp cover housing 4 further enhance the convenience of maintenance and the versatility of components.
[0058] The implementation method of Example 1 is as follows: A housing assembly includes a housing body, which includes a first housing 1, a second housing 2, a third housing 3, and a lampshade housing 4 connected in sequence. The second housing 2 and the third housing 3 together enclose a first mounting cavity 51 for installing a power module, and the third housing 3 and the lampshade housing 4 together enclose a second mounting cavity 52 for installing a lamp source module. A wiring channel is provided between the first housing 1, the second housing 2, the third housing 3, and the lampshade housing 4.
[0059] This invention features a first housing, a second housing, and a third housing connected in sequence. The second and third housings together enclose a first mounting cavity for installing a power module. Compared to traditional explosion-proof lights that use an upper and lower housing to form a power mounting cavity, the three housings increase the installation space of the first mounting cavity, preventing the dense stacking of components due to limited space. Furthermore, interconnected wiring channels between the first, second, and third housings and the lamp cover housing provide a neat wiring path for the power cord. This effectively solves the problem that existing explosion-proof lights typically have an upper and lower housing that enclose a power mounting cavity to house the power module. However, since the power module needs to be connected to the power cord, the power cord is introduced and housed within the power mounting cavity, resulting in messy wiring within the cavity.
[0060] The implementation method of Example 2 is as follows: Based on Embodiment 1, Embodiment 2 also has the following implementation method: a plurality of heat sinks 31 are provided on the outer periphery of the third housing 3, and the plurality of heat sinks 31 are arranged at intervals along the circumference of the third housing 3.
[0061] The implementation method of Example 3 is as follows: Based on Example 2, Example 3 also has the following implementation method: a heat dissipation channel 32 is formed between adjacent heat sinks 31.
[0062] The implementation method of Example 4 is as follows: Based on Embodiment 3, Embodiment 4 also has the following implementation method: The third housing 3 includes an outer ring portion 33 that connects to the heat sink 31. The outer ring portion 33 and the heat sink 31 together form a plurality of hollow holes 34, and the plurality of hollow holes 34 are connected to the heat dissipation channel 32.
[0063] The implementation method of Example 5 is as follows: Based on Example 3, Example 5 also has the following implementation method: the cross-section of the heat dissipation channel 32 is stepped.
[0064] The implementation method of Example 6 is as follows: Based on Embodiment 1, Embodiment 6 also has the following implementation method: The third housing 3 includes a support panel 35, which is located between the first mounting cavity 51 and the second mounting cavity 52. The support panel 35 has multiple support portions protruding on the side facing the first mounting cavity 51.
[0065] The implementation method of Example 7 is as follows: Based on Example 6, Example 7 also has the following implementation method: the support part is a plurality of support ribs 351 distributed at intervals along the circumference of the support panel 35, and the power module is placed on the support ribs 351 so that a heat dissipation gap is formed between the power module and the support panel 35.
[0066] The implementation method of Example 8 is as follows: Based on Example 1, Example 8 also has the following implementation method: the first housing 1 and the second housing 2 are detachably connected, and the second housing 2 and the third housing 3 are detachably connected.
[0067] The implementation method of Example 9 is as follows: Based on Example 1, Example 9 also has the following implementation method: The lampshade housing 4 includes a cover body 41 and a pressure ring 42. The cover body 41 is fixedly connected to the pressure ring 42, and the pressure ring 42 is detachably connected to the third housing 3, so that the cover body 41 is connected to the third housing 3 through the pressure ring 42.
[0068] The implementation method of Example 10 is as follows: An explosion-proof light includes a light body, the light body including a housing assembly as described above.
[0069] The implementation method of Example 11 is as follows: Based on Embodiment 5, Embodiment 11 further includes the following implementation: The heat dissipation channel 32 includes a first stepped surface 321, a connecting sidewall 322, and a second stepped surface 323. The first stepped surface 321 and the second stepped surface 323 are arranged in a horizontal direction, and the first stepped surface 321 is located above the second stepped surface 323. The connecting sidewall 322 is vertically connected between the first stepped surface 321 and the second stepped surface 323.
[0070] The implementation method of Example Twelve is as follows: Based on Example 11, Example 12 also has the following implementation method: The second step surface 323 is set in the horizontal direction, and its cross-section is in the shape of "I". The straight structure is not only easy to process and easy to form, but also provides a stable contact interface for the flowing air, thereby forming a clear laminar flow guidance; secondly, the horizontally set step surface can effectively receive and laterally guide the liquid from above, so that it flows smoothly to the hollow hole 34, avoiding the local accumulation of liquid in the heat dissipation channel 32, and taking into account both basic heat dissipation and drainage functions.
[0071] The implementation method of Example Thirteen is as follows: The difference between Embodiment Thirteen and Embodiment Twelve is that the second step surface 323 is inclined. This inclined structure can significantly reduce the resistance of fluid flow and accelerate air circulation to improve local heat dissipation efficiency. Secondly, the inclined surface provides a clear guiding path for liquid discharge, and can use gravity to make rainwater or condensate slide more quickly into the hollow hole 34 and drain away, effectively reducing the residence time of liquid in the heat dissipation channel 32, which is suitable for rainy or humid environments that are prone to water accumulation.
[0072] The implementation method of Example Fourteen is as follows: The difference between Example 14 and Example 12 is that the second step surface 323 is in the shape of a "concave" groove. The groove structure can collect and guide the liquid, especially in the case of high flow rate or splash water inlet, it can effectively collect the scattered droplets and guide them to the hollow hole 34 for discharge, avoiding the splashing or overflow of the liquid; secondly, the groove shape also enhances the structural rigidity of the second step surface 323 to a certain extent.
[0073] The implementation method of Example 15 is as follows: The difference between Embodiment 15 and Embodiment 7 is that the support part consists of multiple independent columnar protrusions evenly distributed on the bearing panel 35, with mounting holes at the top. The power module is connected to the support column by fasteners, and a through three-dimensional cavity is formed between the bottom of the power module and the bearing panel 35. This structure has clear support points and concentrated force, making it suitable for heavier power modules. At the same time, the space between the columns helps cables to pass through from below, resulting in high wiring flexibility.
[0074] The implementation method of Example 16 is as follows: The difference between Embodiment Sixteen and Embodiment Seven is that the support part is an L-shaped protrusion structure, which consists of a vertical support wall and a horizontal support surface, forming a "slot"-shaped mounting position; the edge of the power module can be directly embedded into the slot to achieve screwless quick installation.
[0075] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.
Claims
1. A housing assembly, comprising a housing body, characterized in that: The main body of the housing includes a first housing (1), a second housing (2), a third housing (3), and a lampshade housing (4) connected in sequence. The second housing (2) and the third housing (3) together enclose a first mounting cavity (51) for installing a power module. The third housing (3) and the lampshade housing (4) together enclose a second mounting cavity (52) for installing a lamp source module. The first housing (1), the second housing (2), the third housing (3), and the lampshade housing (4) are provided with interconnected wiring channels.
2. A housing assembly according to claim 1, characterized in that: The outer periphery of the third housing (3) is provided with a plurality of heat sinks (31), and the plurality of heat sinks (31) are arranged at intervals along the circumference of the third housing (3).
3. A housing assembly according to claim 2, characterized in that: A heat dissipation channel (32) is formed between adjacent heat sinks (31).
4. A housing assembly according to claim 3, characterized in that: The third housing (3) includes an outer ring (33) that connects to the heat sink (31). The outer ring (33) and the heat sink (31) together form a plurality of hollow holes (34), and the plurality of hollow holes (34) are connected to the heat dissipation channel (32).
5. A housing assembly according to claim 3, characterized in that: The heat dissipation channel (32) has a stepped cross-section.
6. A housing assembly according to claim 1, characterized in that: The third housing (3) includes a support panel (35), which is located between the first mounting cavity (51) and the second mounting cavity (52). The support panel (35) has a plurality of support portions protruding on the side facing the first mounting cavity (51).
7. A housing assembly according to claim 6, characterized in that: The support portion consists of a plurality of support ribs (351) spaced apart circumferentially along the bearing panel (35). The power module is placed on the support ribs (351) to form a heat dissipation gap between the power module and the bearing panel (35).
8. A housing assembly according to claim 1, characterized in that: The first housing (1) and the second housing (2) are detachably connected, and the second housing (2) and the third housing (3) are detachably connected.
9. A housing assembly according to claim 1, characterized in that: The lampshade housing (4) includes a cover (41) and a pressure ring (42). The cover (41) is fixedly connected to the pressure ring (42), and the pressure ring (42) is detachably connected to the third housing (3) so that the cover (41) is connected to the third housing (3) through the pressure ring (42).
10. An explosion-proof lamp, characterized in that: Includes a lamp body, said lamp body comprising a housing assembly as described in any one of claims 1-9.