A mine safety lamp

Abstract

The utility model relates to the technical field of mine safety engineering, disclose a kind of mine safety lamp, including the lamp shell of recess structure, the inside of lamp shell is equipped with light source and fin, the outside of lamp shell is equipped with detachable lampshade, and lampshade is used to protect the light source and diffuse light;Lamp shell includes mounting seat and mounting plate, and mounting plate is located the two sides of mounting seat;Light source and the fin are all located on the mounting seat, and light source is located the periphery of fin;Ventilation component is equipped on mounting plate, and ventilation component includes one-to-one corresponding heat dissipation hole, arc baffle and dustproof frame;Heat dissipation hole is oval, and heat dissipation hole is arranged in triangular array, and is set on mounting plate with a certain angle and inclines upward;Arc baffle is located above the entrance of heat dissipation hole, and arc baffle is the arc structure that bends downward;Dustproof frame is detachably covered in the two sides of heat dissipation hole.The utility model can effectively prevent coal dust to accumulate and jam in ventilation passage.

Description

Technical Field

[0001] This utility model relates to the field of mine safety engineering technology, specifically to a mine safety lamp. Background Technology

[0002] Mine safety lights are explosion-proof lighting devices designed specifically for hazardous environments such as mines. Their core function is to safely provide a light source in environments containing flammable gases (such as methane) or dust (such as coal dust).

[0003] However, in actual mining operations, the mining, crushing, transportation, and storage of coal generate large amounts of coal dust. This coal dust is dispersed in a suspended state by the airflow in underground ventilation and enters the mine safety lamps. As the operating time of the mine safety lamps increases, coal dust will continuously settle and accumulate inside the lamps or on the surfaces of critical structures, posing multiple safety hazards: Firstly, accumulated coal dust will block ventilation channels (currently, the ventilation channels in mine safety lamps are only single rectangular holes), affecting the normal heat dissipation of the mine safety lamps, reducing ventilation efficiency, and consequently causing the temperature inside the lamp to rise, creating a risk of ignition; secondly, the deposited coal dust itself is explosive when it reaches a certain concentration and ignition energy. If a combustible dust layer forms on the surface or inside the lamp, it may cause an explosion due to local overheating or electric arc, increasing the risk of dust explosion and endangering the safety of miners. Utility Model Content

[0004] The present invention aims to provide a mine safety light that effectively prevents coal dust from accumulating and clogging ventilation channels.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mine safety lamp, comprising a lamp housing with a grooved structure, wherein a light source and a heat sink are provided inside the lamp housing, and a detachable lamp cover is provided on the outside of the lamp housing, wherein the lamp cover is used to protect the light source and diffuse the light;

[0006] The lamp housing includes a mounting base and a mounting plate, with the mounting plate located on both sides of the mounting base; the light source and the heat sink are both located on the mounting base, and the light source is located on the periphery of the heat sink;

[0007] The mounting plate is equipped with a ventilation assembly, which includes one-to-one heat dissipation holes, an arc-shaped baffle, and a dust cover. The heat dissipation holes are elliptical and arranged in a triangular array, and are inclined upward at a certain angle on the mounting plate. The arc-shaped baffle is located above the inlet of the heat dissipation hole and is a downwardly curved arc structure. The dust cover is detachably installed to cover both sides of the heat dissipation hole.

[0008] The principle of this solution is as follows: When the mine safety lamp is in use, the light source activates to provide necessary illumination. The heat generated by the light source is conducted to the vicinity of the mounting plate through heat sinks and efficiently dissipated through airflow in the ventilation assembly. The ventilation hole assembly contains multiple arrayed heat dissipation holes, forming the main heat dissipation channel. An arc-shaped baffle above the heat dissipation holes prevents coal dust from entering the lamp housing. The downward-curving arc structure of the baffle effectively alters the trajectory of coal dust particles, deflecting them away from the air inlet and reducing dust intrusion. Simultaneously, the outer surface of the heat dissipation holes is covered with a removable dustproof frame to filter coal dust and prevent fine coal dust from entering the lamp housing. Furthermore, the lamp cover is detachably installed on the lamp housing, not only protecting the light source but also uniformly diffusing light and improving illumination quality. When maintenance or replacement of the light source is required, the lamp cover can be removed for inspection, ensuring the continuous operation and safety of the device in the mining environment.

[0009] The advantages of this solution are: (1) The arc-shaped baffle is a downward-curved arc structure. When coal dust particles approach with the airflow, the arc-shaped baffle uses its arc surface to deflect the direction of the coal dust, reducing the possibility of it directly entering the heat dissipation hole, thereby reducing the risk of blockage. At the same time, the detachable dustproof net covers the outside of the heat dissipation hole, acting as a physical barrier to filter fine coal dust particles and prevent them from accumulating in the channel. This dual protection mechanism works together to maintain the unobstructed ventilation channel by deflecting and filtering coal dust, avoiding the problem of equipment overheating caused by heat dissipation failure.

[0010] (2) Compared with the single channel in the existing technology, this solution takes into account both heat dissipation and dust prevention. Its components do not work in isolation. The airflow dispersion of the heat dissipation holes makes the airflow guiding effect of the arc baffle more significant, while the dustproof frame provides targeted filtration, forming a synergistic effect of "1+1+1>3".

[0011] (3) The combination of “arc baffle + heat dissipation hole + dustproof frame” in this solution forms a composite dustproof and heat dissipation system of “active flow guidance (arc baffle) + passive filtration (heat dissipation hole + dustproof frame)”, rather than the traditional single “block or dredge” mode.

[0012] Preferably, as an improvement, the inclination angle of the heat dissipation hole is 30 degrees, and the spacing between adjacent heat dissipation holes is 10mm-15mm.

[0013] Beneficial effects: The 30-degree tilt angle helps optimize airflow paths, allowing outside air to enter the heat dissipation channel more smoothly and improving convective heat dissipation efficiency. The spacing between adjacent heat dissipation holes ensures sufficient ventilation area to meet the equipment's heat dissipation needs while avoiding problems such as reduced structural strength or overlapping dust accumulation areas caused by excessively close hole spacing. This spacing also provides reasonable space for the arrangement of protective components such as curved baffles and dustproof racks, ensuring that functional components work together without interfering with each other.

[0014] Preferably, as an improvement, the radius of curvature of the arc-shaped structure is 25mm-35mm, and the vertical distance between its lower edge and the inlet of the heat dissipation hole is 5mm.

[0015] Beneficial effects: The curvature radius design optimizes the deflection path of coal dust, ensuring smooth airflow and improving dust prevention; the specific gap setting at the vertical distance guides coal dust particles to deflect outward while avoiding blockage of heat dissipation channels.

[0016] Preferably, as an improvement, the inner wall of the heat dissipation hole is coated with a dust-repellent coating, which is made of polytetrafluoroethylene.

[0017] Beneficial effects: Polytetrafluoroethylene (PTFE) materials have low surface energy and hydrophobic properties, which can effectively reduce the tendency of dust to adhere.

[0018] Preferably, as an improvement, the dustproof rack includes a dustproof net and a magnetic adsorption frame, wherein the dustproof net is snapped into the interior of the magnetic adsorption frame; the dustproof net is woven from stainless steel wire, and the mesh size of the dustproof net is 3mm.

[0019] Beneficial effects: (1) The dustproof net is made of stainless steel wire, which has excellent corrosion resistance, high temperature resistance and mechanical strength. It can work stably for a long time in the harsh environment of the mine, which is humid and dusty, and is not easily deformed or rusted. (2) The 3mm mesh size can effectively block larger particles of coal dust, debris and other foreign objects from entering the lamp body while maintaining good ventilation performance and avoiding the impact of excessive shading on heat dissipation efficiency. This aperture takes into account both dustproof effect and air circulation requirements, and prevents the problem of rapid blockage caused by too small mesh. (3) The design of dustproof net and magnetic adsorption frame greatly improves maintenance efficiency. When cleaning or replacement is required, it can be "disassembled and installed immediately", saving operation time.

[0020] Preferably, as an improvement, the ventilation assembly further includes an airflow guide plate, which is inclined at the inlet of the heat dissipation hole, and the inclination angle of the airflow guide plate is 30-60 degrees.

[0021] Beneficial effects: The tilted design not only improves aerodynamic performance and promotes linear and efficient airflow, but also maintains a compact layout of the overall ventilation components while enhancing heat dissipation efficiency.

[0022] Preferably, as an improvement, the airflow guide plate is an arc-shaped structure, which includes a main plate and inwardly turned flanges located on the outer edges of both sides of the main plate.

[0023] Beneficial effects: The curved surface design guides airflow continuously and uniformly along the surface, effectively reducing air separation and turbulence, lowering flow resistance, and thus improving air intake efficiency and heat dissipation performance. The main body plate is primarily used to change the airflow direction, guide smooth airflow, and reduce eddies and resistance; the flanged edge is used to guide airflow.

[0024] Preferably, as an improvement, it further includes a heating element located around the heat dissipation hole and at the outlet of the mounting plate for melting coal dust, and the distance between the heating element and the heat dissipation hole is 3mm-6mm.

[0025] Beneficial effects: The heating element can melt coal dust at low temperatures and is located at the outlet of the mounting plate, thereby improving anti-clogging performance. Appropriate spacing ensures that the heating element can effectively melt coal dust without affecting the normal heat dissipation function of the heat dissipation holes or causing localized overheating due to excessive distance.

[0026] Preferably, as an improvement, it also includes a micro vibrator located at the outlet of the mounting plate and at the upper and lower edges of the mounting plate.

[0027] Beneficial effects: Miniature vibrators are used to periodically vibrate and shake off coal dust accumulated on the heat dissipation holes and surrounding components (such as dustproof racks, arc baffles, etc.), effectively preventing dust blockage and improving the long-term operational reliability of ventilation components.

[0028] Preferably, as an improvement, it further includes a cleaning component located at the outlet of the mounting plate and near the lower end of the mounting plate; the cleaning component includes a cleaning tank and a cleaning brush that matches the cleaning tank, the cleaning brush being detachably stored in the cleaning tank for removing coal dust from the dustproof frame.

[0029] Beneficial effects: The cleaning component is used to remove coal dust from the dustproof rack. The design of the cleaning component allows for "embedded tools and immediate use," eliminating the need for additional external cleaning tools and enhancing the equipment's self-maintenance capabilities.

[0030] In summary, the beneficial effects of this solution are: (1) This solution effectively blocks, deflects and removes coal dust through multiple protection mechanisms such as arc baffles, dustproof frames, airflow guide plates, heating elements and micro vibrators. In particular, it solves the problem that coal dust can easily block the heat dissipation channel, and greatly extends the maintenance-free cycle of the equipment in high dust environments.

[0031] (2) This solution forms a multi-level dust prevention linkage: the arc-shaped baffle realizes the primary physical dust deflection, the dustproof frame performs fine filtration, and the airflow guide plate optimizes the airflow to reduce sedimentation. The three form a three-level protection system of "guide-block-filter" to prevent dust intrusion to the greatest extent.

[0032] (3) In this scheme, the components (such as arc baffle, airflow guide plate, dustproof frame, heating element, micro vibrator, cleaning component) are reasonably distributed in space, working closely around the heat dissipation hole, and avoiding mutual interference through precise spacing and structural design, so as to ensure that their functions are independent and effective. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of a mine safety lamp provided in an embodiment of the present utility model.

[0034] Figure 2 for Figure 1 A magnified view of part A in the image.

[0035] Figure 3 This is a schematic diagram of the internal structure of a mine safety lamp provided in an embodiment of the present invention.

[0036] Figure 4 for Figure 3 A magnified view of part B in the image.

[0037] Figure 5 An exploded view of a mine safety lamp provided as an embodiment of this utility model.

[0038] The reference numerals in the accompanying drawings include: lamp housing 1, mounting base 11, mounting plate 12, light source 2, heat sink 3, lamp cover 4, ventilation assembly 5, heat dissipation hole 51, arc baffle 52, dustproof frame 53, dustproof net 531, magnetic adsorption frame 532, dust-repellent coating 54, airflow guide plate 55, screw 56, cleaning assembly 6, cleaning tank 61, cleaning brush 62, miniature vibrator 7, heating element 8. Detailed Implementation

[0039] The following detailed description illustrates the specific implementation method:

[0040] In this embodiment, Figure 3 The side of the mounting plate 12 furthest from the mounting base 11 is called the inlet / entrance, and the side of the mounting plate 12 closest to the mounting base 11 is called the outlet / exit.

[0041] The implementation examples are basically as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown: A mine safety lamp for providing illumination in a mining environment includes a lamp housing 1 with a grooved structure, a light source 2 and a heat sink 3 installed inside the lamp housing 1, and a detachable lamp cover 4 installed on the outside of the lamp housing 1, which is used to protect the light source 2 and diffuse the light.

[0042] The lamp housing 1 includes a mounting base 11 and a mounting plate 12, with the mounting plate 12 located on both sides of the mounting base 11; the light source 2 and the heat sink 3 are both located on the mounting base 11, and the light source 2 is located on the periphery of the heat sink 3;

[0043] A ventilation assembly 5 is installed on the mounting plate 12. The ventilation assembly 5 includes one-to-one heat dissipation holes 51, arc-shaped baffles 52, and dustproof brackets 53. The heat dissipation holes 51 are elliptical and arranged in a triangular array, and are inclined upward at a certain angle on the mounting plate 12. The arc-shaped baffles 52 are located above the inlet of the heat dissipation holes 51 and are arc-shaped structures that bend downward. The dustproof brackets 53 are detachably covered on both sides of the heat dissipation holes 51.

[0044] Specifically,

[0045] like Figure 1 , Figure 2 As shown, the lamp housing 1, as the main structure of the lamp, adopts a recessed structure to accommodate and protect internal components (such as the heat sink 3 and the light source 2) and provide mechanical support for the entire lamp. The lamp housing 1 includes a mounting base 11 and mounting plates 12 located on the left and right sides of the mounting base 11. The mounting base 11 and the mounting plates 12 are equipped with several threaded interfaces and screw holes 56 for reliable connection with the lamp shade 4 and the heat sink 3. This design not only facilitates assembly but also helps to improve the stability and sealing of the overall structure.

[0046] In this embodiment, the lamp housing 1 is typically made of metal or high-strength plastic. The lamp housing 1 is formed using a die-casting aluminum process to balance structural strength and manufacturing precision, ensuring product consistency and reliability.

[0047] The lampshade 4 is detachably mounted on the outside of the lamp housing 1 to protect the light source 2 and diffuse light for uniform illumination. The lampshade 4 is fixed to the lamp housing 1 via a threaded connection. Specifically, the lampshade 4 has external threads on its edge that match the threaded interface at the corresponding position on the edge of the lamp housing 1, allowing for easy installation and removal by simply screwing it on. This facilitates quick removal of the lampshade 4 for cleaning and maintenance of the light source 2, improving ease of use.

[0048] In this embodiment, the lampshade 4 is made of a transparent or semi-transparent impact-resistant material, such as polycarbonate, which has good light transmittance, impact resistance and weather resistance, effectively ensuring the safe and stable operation of the lamp in the complex environment of the mine.

[0049] The light source 2 is installed inside the lamp housing 1 to provide illumination. Specifically, the light source 2 is fixed to the mounting base 11 by a snap-fit ​​mechanism (not shown in the figure). This snap-fit ​​structure includes a spring plate and a locking groove, wherein the locking groove is located on the mounting base 11 and the spring plate is located on the light source 2. During installation, the spring plate springs back and snaps into the locking groove, forming a mechanical interlock, thereby fixing the light source 2 to the mounting base 11. This snap-fit ​​structure design not only simplifies the assembly and disassembly process, facilitating the quick installation and maintenance of the light source 2, but also has good vibration resistance, effectively preventing the light source 2 from loosening or falling off due to vibration in environments with continuous vibration, such as mines, ensuring the stable operation of the lighting system. In this embodiment, the light source 2 is an LED module, which has advantages such as high luminous efficiency, low power consumption, and long lifespan.

[0050] The heat sink 3 is located on the mounting base 11 of the lamp housing 1 and inside the light source 2. It is used to conduct and dissipate the heat generated by the light source 2 during operation to maintain the normal operating temperature of the light source 2. The heat sink 3 has a fin-shaped structure, which can effectively increase the contact area between the heat sink 3 and the air, thereby effectively improving the efficiency of heat transfer from the heat sink 3 to the air and enhancing the overall heat dissipation capacity.

[0051] The heat sink 3 is connected to the mounting base 11 by screws. Specifically, both the heat sink 3 and the mounting base 11 are equipped with corresponding threaded holes. By screwing the screws into the threaded holes, the heat sink 3 is firmly fixed to the mounting base 11. This connection method not only ensures a good heat conduction path between the heat sink 3 and the mounting base 11, achieving efficient heat transfer, but also provides reliable mechanical fixation, enhancing the stability of the overall structure. In this embodiment, the heat sink 3 is made of a material with good thermal conductivity, such as aluminum alloy, further improving heat dissipation efficiency and ensuring that the light source 2 maintains a suitable temperature during long-term operation.

[0052] The ventilation hole assembly is mounted on the mounting plate 12 to promote airflow between the interior and exterior of the luminaire, thereby enhancing the overall heat dissipation effect. The ventilation hole assembly includes a heat dissipation hole 51, an arc-shaped baffle 52, and a dust cover 53, which work together to achieve efficient ventilation and protection functions.

[0053] Among them, such as Figure 3 , Figure 4 , Figure 5As shown, the heat dissipation holes 51 are elliptical and arranged in a triangular array to maximize the ventilation area and optimize heat dissipation efficiency within a limited space. Furthermore, the heat dissipation holes 51 are inclined upwards at a 30-degree angle, rather than being planar. This angle design helps guide airflow upwards, reducing horizontal air resistance and thus improving the removal of internal heat and increasing heat dissipation efficiency. Simultaneously, the spacing between adjacent heat dissipation holes 51 is 10mm-15mm, achieving uniform distribution and avoiding airflow blind spots or localized congestion, thereby ensuring the stability, continuity, and balanced coverage of airflow. In this embodiment, the spacing between adjacent heat dissipation holes 51 is 15mm.

[0054] In this embodiment, the heat dissipation holes 51 are directly manufactured through the forming process of the mounting plate 12, such as by stamping or die casting, precisely forming the required angles and layout during the manufacturing process. The holes are arranged in an equidistant pattern, with the central axis of each hole maintaining a consistent tilt angle and spacing, forming a continuous and orderly ventilation channel, further improving the rationality of airflow organization.

[0055] In addition, the inner wall of the heat dissipation hole 51 is coated with a dust-repellent coating 54, forming a continuous protective film to reduce the accumulation of coal dust on the hole wall. This coating is made of polytetrafluoroethylene (PTFE), which has low surface energy and hydrophobic properties, effectively reducing the tendency for dust to adhere. The dust-repellent coating 54 is applied directly to the inner wall of the heat dissipation hole 51 without additional mechanical fixation, thus maintaining the original ventilation function of the heat dissipation hole 51.

[0056] In this embodiment, the choice of polytetrafluoroethylene (PTFE) material also ensures that the dust-repellent coating 54 has wear resistance and chemical stability in the mining environment, preventing the channels from being blocked by coal dust accumulation. The coating thickness is 2mm-4mm, ensuring protective performance while also taking into account the geometric integrity of the heat dissipation holes 51 and airflow efficiency.

[0057] like Figure 2 , Figure 3 As shown, an arc-shaped baffle 52 is installed above the inlet of each heat dissipation hole 51 via screws 56. This baffle guides and changes the settling direction of coal dust, preventing it from entering the heat dissipation hole 51. The arc-shaped baffle 52 has a downward-curving arc structure, forming an effective dust barrier and improving the guiding efficiency of coal dust. Its arc structure has a radius of curvature of 25mm-35mm, which optimizes the deflection path of coal dust, ensures smooth airflow deflection, and improves the dust prevention effect. At the same time, the vertical distance between the lower edge of the arc-shaped baffle 52 and the inlet of the heat dissipation hole 51 is 5mm. This specific gap is used to guide coal dust particles outward while avoiding blockage of the heat dissipation channel.

[0058] In this embodiment, the arc-shaped baffle 52 is made of metal sheet, which is bent to maintain a constant radius of curvature of 25mm, and the overall structure is a single-piece plate. During installation, the lower edge of the arc-shaped baffle 52 is precisely adjusted to 5mm above the inlet of the heat dissipation hole 51, and a stable connection is achieved with screws 56 to ensure positional consistency. This curved shape and specific spacing layout can effectively address the coal dust problem in the mining environment.

[0059] like Figure 5 As shown, the dustproof frame 53 is detachably installed on both sides of the heat dissipation hole 51 to filter and intercept external coal dust, preventing it from entering the lamp housing 1. The dustproof frame 53 includes a dustproof net 531 and a magnetic adsorption frame 532. The dustproof net 531 is fixed inside the magnetic adsorption frame 532 by snap-fit ​​or adhesive, forming an integral unit.

[0060] The dustproof mesh 531 is woven from stainless steel wire. Stainless steel provides excellent corrosion resistance and mechanical strength, making it well-suited for complex working conditions involving high dust and humidity. The mesh size of the dustproof mesh 531 is 3mm, a design that optimizes filtration efficiency, particularly for fine coal dust particles commonly found in mining environments. Simultaneously, the woven structure enhances the uniformity and stability of the mesh surface, reducing the risk of deformation due to vibration or impact. Furthermore, it allows the dustproof mesh 531 to be directly exposed to external airflow, efficiently capturing coal dust while avoiding blockage of heat dissipation channels.

[0061] The magnetic adsorption frame 532 is a connecting component, its size adapted to the inner wall of the heat dissipation hole 51 to ensure that the dust cover 53 firmly covers the entire outer area of ​​the heat dissipation hole 51. The magnetic adsorption frame 532 is composed of a ring frame with embedded magnetic elements, allowing it to be detachably fixed to the corresponding metal area within the heat dissipation hole 51 via magnetic adsorption. During installation, the magnetic adsorption frame 532 is aligned with the heat dissipation hole 51, and its edges are in close contact with the inner wall of the heat dissipation hole 51, forming a seamless cover. In this embodiment, the magnetic elements of the magnetic adsorption frame 532 typically employ permanent magnets or electromagnetic components, ensuring reliable adsorption even under high vibration conditions in a mining environment.

[0062] The overall design of the dust cover 53 avoids the cumbersome traditional bolt or threaded connections, simplifying the disassembly process. Users only need to apply a slight pull to separate the dust cover 53 from the heat dissipation hole 51, making it easy to quickly clean or replace the dust cover 53, thus ensuring that its long-term filtration performance is not affected, while also not affecting the normal airflow function of the heat dissipation hole 51.

[0063] The ventilation assembly 5 also includes an airflow guide plate 55, which is installed at an angle at the inlet of the heat dissipation hole 51 to guide the airflow at high speed, thereby reducing coal dust settling.

[0064] Specifically, the airflow guide plate 55 is located inside the heat dissipation hole 51 and is fixed at an angle to the upstream area of ​​the inlet of the heat dissipation hole 51 by screws. When air flows through the airflow guide plate 55, its flow direction is forcibly deflected and accelerated, forming a high-speed airflow path, reducing the tendency of coal dust particles to settle at the inlet, thereby significantly reducing the risk of coal dust deposition. The tilt angle of the airflow guide plate 55 is 30-60 degrees. In this embodiment, the tilt angle of the airflow guide plate 55 is 45 degrees, which not only helps aerodynamic performance, promotes linear airflow and efficient circulation, but also maintains the compact layout of the overall ventilation assembly 5 while improving heat dissipation efficiency. This tilt angle can be dynamically adjusted according to actual working conditions.

[0065] The airflow guide plate 55 has a curved arc structure, which includes a main plate and inwardly turned flanges located on the outer edges of the left and right sides of the main plate. The main plate incorporates support ribs or edge reinforcing ribs to enhance the stability of the airflow guide plate 55 under high-speed airflow; the flanges enhance rigidity. The main plate and flanges are aligned with mounting points on the mounting plate 12 to ensure the stability of the airflow guide plate 55 and facilitate future maintenance and replacement. In this embodiment, the structural and positional design of the airflow guide plate 55 considers spatial coordination with adjacent dustproof components (such as the arc-shaped baffle 52 and dustproof frame 53) to avoid mutual interference and ensure efficient and coordinated operation of all functional components.

[0066] In addition, in this embodiment, the airflow guide plate 55 is typically made of lightweight metal or corrosion-resistant material, such as stainless steel, to withstand the long-term effects of high humidity, high dust, and potentially corrosive substances in the mining environment.

[0067] like Figure 4 , Figure 5 As shown, the mine safety light also includes a heating element 8, a micro vibrator 7, and a cleaning component 6.

[0068] The heating element 8 is distributed around the heat dissipation hole 51 and is located at the outlet of the mounting plate. It can melt coal dust through heating under low temperature conditions, thereby improving the anti-clogging performance.

[0069] Specifically, the heating elements 8 are arranged in an array around the outlet of the heat dissipation holes 51, and the shape of the heating elements 8 is ring-shaped or strip-shaped to fit the elliptical distribution of the heat dissipation holes 51. This arrangement ensures that heat is evenly transferred to the surface of each heat dissipation hole 51, optimizes heat conduction efficiency, and achieves a highly efficient and stable thermal protection effect.

[0070] The distance between the heating element 8 and the heat dissipation hole 51 is 3mm-6mm. This appropriate distance ensures that the heating element 8 can effectively melt coal dust without affecting the normal heat dissipation function of the heat dissipation hole 51 or causing localized overheating due to excessive distance.

[0071] The heating element 8 comprises an insulating substrate and a heating layer embedded in the insulating substrate, forming an integrated structure. The insulating substrate is made of a high-temperature resistant material, possessing good electrical insulation and thermal stability; the heating layer is responsible for generating heat. In this embodiment, the heating element 8 can be a heating wire or a thin-film heating element, selected according to actual power and space requirements.

[0072] The heating element 8 is directly fixed to the mounting plate 12 by fasteners (such as screws or adhesives) and is closely adjacent to the heat dissipation hole 51 to ensure good thermal coupling effect. At the same time, the distribution of the heating element 8 avoids interference with detachable parts such as the arc baffle 52 and the dust cover 53, ensuring independent operation and maintenance of each functional component.

[0073] In addition, the heating element 8 is connected to the control circuit inside the lamp housing 1 through wires, which enables real-time temperature monitoring and intelligent control, ensuring that the heating function is automatically activated when needed, taking into account both energy efficiency and dustproof reliability.

[0074] The miniature vibrator 7 is located at the outlet of the mounting plate 12 and at the edges of both the upper and lower ends of the mounting plate 12. The miniature vibrator 7 is controlled by a timer to periodically vibrate and shake off the coal dust accumulated on the heat dissipation hole 51 and its surrounding components (such as the dust cover 53, the arc baffle 52, etc.), effectively preventing dust blockage and improving the long-term operational reliability of the ventilation assembly 5.

[0075] Specifically, one of the miniature vibrators 7 is located at the upper edge of the mounting plate 12, and the other is symmetrically located at the lower edge of the mounting plate 12. This layout avoids the distribution of heat dissipation holes 51 and the deflection function of the arc-shaped baffle 52, ensuring the effective range of vibration transmission without interfering with the normal operation of the heat dissipation airflow path or the dustproof structure.

[0076] The miniature vibrator 7 includes a vibration motor and a fixed bracket. The vibration motor is coupled to the fixed bracket via an elastic element, and the fixed bracket is fastened to the mounting plate 12 with screws, ensuring that the vibration acts directly on the peripheral components of the heat dissipation hole 51. The miniature vibrator 7 is connected to a timer via a wire. This timer is integrated into the electronic control module inside the lamp housing 1 near the light source 2, forming an electrical connection for periodically activating the vibration function.

[0077] In this embodiment, the micro vibrator 7 uses a piezoelectric ceramic vibration unit, which has the advantages of small size, low power consumption, and fast response, making it particularly suitable for industrial environments with limited space and frequent start-stop requirements. The timer is an embedded microcontroller module that outputs a drive signal at a preset time interval, which is connected to the piezoelectric ceramic vibration unit via a wire to perform periodic vibration operation, causing coal dust adhering to its surface and nearby components to fall off due to vibration, thereby achieving an automatic cleaning function.

[0078] The cleaning assembly 6 is located at the outlet of the mounting plate 12 and near the lower end of the mounting plate 12. The cleaning assembly 6 includes a cleaning tank 61 and a cleaning brush 62 that matches the cleaning tank 61. The cleaning brush 62 is detachably stored in the cleaning tank 61 and is used to remove coal dust from the dust cover 53.

[0079] Specifically, the cleaning brush 62 includes a bristle portion and a handle portion. The bristle portion can fully contact the surface of the dust filter 531 to effectively remove coal dust without clogging the dust filter 531. The handle portion is ergonomically designed for easy gripping and operation, ensuring both efficiency and safety during the cleaning process.

[0080] The cleaning tank 61 is located at the lower end of the mounting plate 12, which is a reasonable position. After the cleaning brush 62 is removed, it can directly clean the adjacent dust screen 531 without disassembling the equipment or performing complicated operations, which greatly simplifies the maintenance process.

[0081] The inner cavity of the cleaning tray 61 matches the shape of the cleaning brush 62, ensuring that the cleaning brush 62 can be stored securely when not in use, preventing loosening or accidental dislodgement. Simultaneously, the cleaning brush 62 is secured in the cleaning tray 61 by a snap-fit ​​or magnetic attachment, allowing the user to easily remove or reinsert the cleaning brush 6257 from the cleaning tray 61. In this embodiment, the cleaning brush 62 is detachably secured to the cleaning tray 61 by a snap-fit ​​structure; a spring-loaded snap-fit ​​is installed inside the cleaning tray 61, and the handle portion of the cleaning brush 62 is equipped with a corresponding protruding structure. When the cleaning brush 62 is inserted into the cleaning tray 61, the protruding structure triggers the spring-loaded snap-fit ​​and locks the protruding structure, achieving reliable fixation; when needed, simply press the spring-loaded snap-fit ​​to easily remove the cleaning brush 62 for use.

[0082] Specific implementation process:

[0083] In actual operation, when the mine safety lamp is used, the light source 2 is activated to provide necessary illumination. The heat generated by the operation of the light source 2 is conducted to the vicinity of the mounting plate 12 through the heat sink 3 and is efficiently dissipated through the airflow of the ventilation assembly 5. The ventilation hole assembly contains multiple arrayed heat dissipation holes 51, forming the main heat dissipation channel. The arc-shaped baffle 52 above the heat dissipation holes 51 is used to prevent coal dust from entering the lamp housing 1. The downward curved arc structure of the baffle 52 can effectively change the movement trajectory of coal dust particles, deflecting them away from the air inlet, thereby reducing dust intrusion. At the same time, the outer surface of the heat holes is covered with a removable dustproof net 531 to filter coal dust and prevent fine coal dust from entering the lamp housing 1. In addition, the lamp cover 4 is detachably installed on the lamp housing 1, which not only protects the light source 2 but also diffuses the light evenly, improving the lighting quality. When maintenance or replacement of the light source 2 is required, the lamp cover 4 can be removed for maintenance, thereby ensuring the continuous operation and safety of the device in the mining environment.

[0084] Secondly, the heating element 8, the micro vibrator 7, and the cleaning component 6 can be used for regular cleaning and treatment of coal dust.

[0085] In summary, compared to the single channel in existing technologies, this solution simultaneously addresses both heat dissipation and dust prevention needs. Its components do not function in isolation—the airflow dispersion of the heat dissipation holes 51 enhances the airflow guiding effect of the arc-shaped baffle 52, while the dustproof frame 53 provides targeted filtration, creating a synergistic effect of "1+1+1>3". The combination of "arc-shaped baffle 52 + heat dissipation holes 51 + dustproof frame 53" forms a composite dustproof and heat dissipation system of "active airflow guidance (arc-shaped baffle 52) + passive filtration (heat dissipation holes 51 + dustproof frame 53)," rather than the traditional single "blocking or dredging" approach.

[0086] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A mine safety light for providing illumination in a mining environment, characterized in that: The lamp housing includes a recessed structure, with a light source and a heat sink inside the housing, and a removable lampshade on the outside of the housing, which protects the light source and diffuses the light. The lamp housing includes a mounting base and a mounting plate, with the mounting plate located on both sides of the mounting base; the light source and the heat sink are both located on the mounting base, and the light source is located on the periphery of the heat sink; The mounting plate is equipped with a ventilation assembly, which includes one-to-one heat dissipation holes, an arc-shaped baffle, and a dust cover. The heat dissipation holes are elliptical and arranged in a triangular array, and are inclined upward at a certain angle on the mounting plate. The arc-shaped baffle is located above the inlet of the heat dissipation hole and is a downwardly curved arc structure. The dust cover is detachably installed to cover both sides of the heat dissipation hole.

2. A mine safety light according to claim 1, characterized in that: The inclination angle of the heat dissipation holes is 30 degrees, and the spacing between adjacent heat dissipation holes is 10mm-15mm.

3. A mine safety light according to claim 1, characterized in that: The radius of curvature of the arc-shaped structure is 25mm-35mm, and the vertical distance between its lower edge and the inlet of the heat dissipation hole is 5mm.

4. A mine safety light according to claim 1, characterized in that: The inner wall of the heat dissipation hole is coated with a dust-repellent coating, which is made of polytetrafluoroethylene.

5. A mine safety light according to claim 1, characterized in that: The dustproof rack includes a dustproof net and a magnetic adsorption frame, with the dustproof net snapped into the inside of the magnetic adsorption frame; the dustproof net is woven from stainless steel wire, and the mesh size of the dustproof net is 3mm.

6. A mine safety light according to claim 1, characterized in that: The ventilation assembly also includes an airflow guide plate, which is inclined at the inlet of the heat dissipation hole, and the inclination angle of the airflow guide plate is 30-60 degrees.

7. A mine safety light according to claim 6, characterized in that: The airflow guide plate has an arc-shaped structure, which includes a main plate and inwardly turned flanges located on the outer edges of both sides of the main plate.

8. A mine safety light according to claim 1, characterized in that: It also includes a heating element located around the heat dissipation hole and at the outlet of the mounting plate for melting coal dust. The distance between the heating element and the heat dissipation hole is 3mm-6mm.

9. A mine safety light according to claim 1, characterized in that: It also includes a micro vibrator, which is located at the outlet of the mounting plate and at the upper and lower edges of the mounting plate.

10. A mine safety light according to claim 1, characterized in that: It also includes a cleaning component located at the outlet of the mounting plate and near the lower end of the mounting plate; the cleaning component includes a cleaning tank and a cleaning brush that matches the cleaning tank, the cleaning brush being detachably stored in the cleaning tank for removing coal dust from the dustproof frame.

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