A flameproof and intrinsically safe LED emergency light for mines

Abstract

The present invention is applicable to a flameproof and intrinsically safe LED emergency light for use in mines, and provides a flameproof and intrinsically safe LED emergency light for use in mines, comprising a shell assembly with a sealed single-cavity structure, wherein the shell assembly comprises a main shell and an upper cover connected to the main shell; the LED emergency light also comprises a power supply assembly and a drive assembly connected to the power supply assembly, and the upper cover is connected with a transparent part and a light source assembly; the drive assembly, the power supply assembly and the light source assembly are all arranged in the cavity of the shell assembly; and a sealant is also filled between the upper cover and the transparent part. The flameproof and intrinsically safe LED emergency light for use in mines provided by the present invention has a sealed single-cavity structure, which can prevent water from entering the lamp, and the lamp uses an environmentally friendly LED light source to achieve the effect of energy saving and emission reduction, and can be widely used in areas with explosive mixed gases of methane and coal dust in underground coal mines and provide emergency lighting.

Description

Technical Field

[0001] The invention belongs to the technical field of mine emergency lighting, and in particular relates to a mine explosion-proof and intrinsically safe LED emergency lamp. Background Art

[0002] Mining explosion-proof and intrinsically safe LED emergency lights can be widely used for lighting in underground tunnels, chambers, belt lanes, underground pump rooms and other areas with explosive mixed gases of methane and coal dust.

[0003] In the existing technology, there are products for underground coal mines that can meet the lighting needs of most of the underground coal mine tunnels, but there are few lamps with emergency functions. Since various types of equipment are used in underground coal mines for power outages, inspections, and maintenance, users of underground mine tunnel lamps lack lamps with emergency functions. Currently, only mobile lighting lamps such as mining lamps and coal safety flashlights are used, which to a certain extent affects the lighting effect. Customers need higher-power mine emergency lamps. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a mine-use explosion-proof and intrinsically safe LED emergency light, which has a sealed single-cavity structure, which can prevent water from entering the lamp. The lamp uses an environmentally friendly LED light source to achieve the effect of energy saving and emission reduction. It can be widely used in coal mines with explosive mixed gas areas of methane and coal dust and provide emergency lighting.

[0005] The technical solution of the present invention is: a flameproof and intrinsically safe LED emergency light for mining, comprising a shell assembly with a sealed single-cavity structure, wherein the shell assembly comprises a main shell and an upper cover connected to the main shell; the LED emergency light also comprises a power supply assembly and a drive assembly connected to the power supply assembly, and the upper cover is connected with a transparent part and a light source assembly; the drive assembly, the power supply assembly and the light source assembly are all arranged in the sealed single-cavity structure; and sealant is also filled between the upper cover and the transparent part.

[0006] As a further improvement of the present technical solution, the upper cover has a transverse shoulder portion which is concave inward and used to abut against the transparent member, and a mounting portion which is integrally connected to the transverse shoulder portion; the LED emergency light also includes a first mounting plate connected to the transparent member and the mounting portion, and a first locking member which locks the first mounting plate to the upper cover.

[0007] As a further improvement of the present technical solution, the upper cover also has a protrusion, the main shell is provided with an avoidance groove opposite to the protrusion, and the protrusion is spaced apart from or adjacent to the mounting portion; the LED emergency light also includes a second locking piece, one end of the second locking piece extends into the avoidance groove, the protrusion has a mounting hole, the other end of the second locking piece extends into the mounting hole and is used to lock the light source assembly to the upper cover.

[0008] As a further improvement of the technical solution, the light source assembly includes a reflector and a light source board connected to the reflector, the main housing has a first step portion opposite to the reflector, and the avoidance groove is arranged on the first step portion.

[0009] As a further improvement of the technical solution, the upper cover has a first flange portion, and the main housing has a second flange portion connected to the first flange portion;

[0010] The outer sides of the upper cover and the main shell are both provided with a plurality of reinforcing ribs, and the spacing between adjacent reinforcing ribs is less than 25 mm;

[0011] The area between the upper cover and the transparent member for filling the sealant is an adhesive bonding surface, and the width of the adhesive bonding surface is not less than 10 mm.

[0012] As a further improvement of the present technical solution, the main shell has a shell main panel, the power supply assembly and the drive assembly are arranged at intervals and are both connected to the shell main panel; the power supply assembly is also covered with a power supply cover assembly, and the power supply cover assembly is fixedly connected to the shell main panel.

[0013] As a further improvement of the technical solution, the LED emergency light also includes a drive shell arranged on the main panel of the shell, and the drive component is arranged in the drive shell; and a drive sealing glue is also filled between the drive component and the drive shell.

[0014] As a further improvement of the present technical solution, the LED emergency light also includes a current limiting component arranged on one side of the power supply assembly; the power supply cover assembly includes a power supply cover and a flexible component clamped between the power supply assembly and the power supply cover and used to protect the power supply assembly.

[0015] As a further improvement of the technical solution, a sealing groove is provided on the side of the upper cover facing the main shell, and the LED emergency light also includes a sealing member provided in the sealing groove and used for sealing between the upper cover and the main shell.

[0016] As a further improvement of the technical solution, the outer side of the main housing is further provided with a U-shaped bracket, two adjustment disks for adjusting the angle of the U-shaped bracket, and a bracket locking member passing through the two adjustment disks and extending into one side of the main housing to lock the angle of the U-shaped bracket; one of the adjustment disks is fastened to the main housing, and the other adjustment disk is fastened to the U-shaped bracket;

[0017] A protection net for protecting the transparent member is also arranged on the top of the upper cover.

[0018] The present invention provides a flameproof and intrinsically safe LED emergency light for mining, wherein the driving assembly and the light source assembly are both arranged in the same chamber. Compared with the structure of the flameproof chamber and the intrinsically safe chamber in the prior art, the connecting device between the flameproof chamber and the intrinsically safe chamber can be omitted, the internal structure is simplified, the structure is simpler, the disassembly and assembly are more convenient, and the sealing performance is good, the flameproof effect is good, and the cost is low. It can prevent water from entering the lamp. The lamp uses an environmentally friendly LED light source to achieve the effect of energy saving and emission reduction. It can be widely used in coal mines with explosive mixed gas areas of methane and coal dust and provide emergency lighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a three-dimensional assembly diagram of a mining explosion-proof and intrinsically safe LED emergency light provided by an embodiment of the present invention;

[0021] Figure 2 It is a three-dimensional assembly diagram of another perspective of a mining explosion-proof and intrinsically safe LED emergency light provided by an embodiment of the present invention;

[0022] Figure 3 This is a three-dimensional exploded view of a mining explosion-proof and intrinsically safe LED emergency light provided by an embodiment of the present invention;

[0023] Figure 4 yes Figure 7 A partial cross-sectional diagram of the middle BB section;

[0024] Figure 5 yes Figure 4 Schematic cross-sectional view of the AA section;

[0025] Figure 6 This is a front view of a flameproof and intrinsically safe LED emergency light for mining provided by an embodiment of the present invention;

[0026] Figure 7 yes Figure 6 Schematic diagram of the local section along the CC section;

[0027] Figure 8 This is a structural schematic diagram of the upper cover of a mining explosion-proof and intrinsically safe LED emergency light provided by an embodiment of the present invention;

[0028] Fig. 9 It is another structural schematic diagram of the upper cover of a mining explosion-proof and intrinsically safe LED emergency light provided by an embodiment of the present invention;

[0029] Fig.10 It is a structural schematic diagram of the main housing of a mining explosion-proof and intrinsically safe LED emergency light provided by an embodiment of the present invention.

[0030] Numbers in the figure:

[0031] 1-main shell, 101-first step portion, 102-second flange portion, 1011-avoidance groove, 103-shell main panel;

[0032] 2-upper cover, 21-lateral shoulder portion, 22-mounting portion, 23-raised portion, 24-first flange portion;

[0033] 31-reflector, 32-light source board;

[0034] 4-power supply assembly; 5-driving assembly; 6-transparent member; 7-first mounting plate; 8-first locking member; 9-power supply cover; 10-sealing member; 11-U-shaped bracket;

[0035] 12-adjusting disk, 12a-one of the adjusting disks, 12b-the other adjusting disk;

[0036] 13- bracket locking piece; 14- protective net; 15- current limiting piece; 16- flexible piece; 17- lifting ring; 18- pressing nut. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] It should be noted that the terms “setting” and “connection” should be understood in a broad sense. For example, it can be directly setting or connecting, or it can be indirectly setting or connecting through a central component or a central structure.

[0039] In addition, in the embodiments of the present invention, if there are terms indicating orientation or positional relationships such as "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., they are based on the orientation or positional relationships or conventional placement states or usage states shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure, feature, device or element referred to must have a specific orientation or positional relationship, nor must it be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0040] The various specific technical features and embodiments described in the specific implementation methods can be combined in any suitable manner unless there is any contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features / embodiments in the present invention will not be described separately.

[0041] like Figures 1 to 10 As shown, a flameproof and intrinsically safe LED emergency light for mining provided by an embodiment of the present invention comprises a housing assembly with a sealed single-chamber structure, wherein the housing assembly comprises a main housing 1 and an upper cover 2 connected to the main housing 1; the LED emergency light further comprises a power supply assembly 4 and a drive assembly 5 connected to the power supply assembly 4, the upper cover 2 is connected with a transparent part 6 and a light source assembly; the drive assembly 5, the power supply assembly 4 and the light source assembly are all arranged in the sealed single-chamber structure; and a sealant is also filled between the upper cover 2 and the transparent part 6. A flameproof and intrinsically safe LED emergency light for mining provided by an embodiment of the present invention adopts a sealed single-chamber structure design, that is, the drive assembly 5 and the light source assembly are both arranged in the same chamber. Compared with the flameproof and intrinsically safe chamber structure in the prior art, the connection device between the flameproof chamber and the intrinsically safe chamber can be omitted, the internal structure is simplified, the structure is simpler, the disassembly and assembly are more convenient, and the sealing is good, the flameproof effect is good, and the cost is low; the pre-positioning and sealing are performed by filling the sealant, which is convenient for the transparent part 6 to be further assembled, and the sealing effect is better.

[0042] Furthermore, the upper cover 2 has a transverse shoulder portion 21 which is concave inward and used to abut against the transparent member 6, and a mounting portion 22 which is integrally connected to the transverse shoulder portion 21; the LED emergency light also includes a first mounting plate 7 and a first locking member 8; the first mounting plate 7 is connected to the transparent member 6 and the mounting portion 22; the first mounting plate 7 is locked to the upper cover 2 by the first locking member 8.

[0043] Furthermore, the upper cover 2 also has a protrusion 23, the main housing 1 is provided with an avoidance groove 1011 opposite to the protrusion 23, and the protrusion 23 is spaced apart from or adjacent to the mounting portion 22; the LED emergency light also includes a second locking member, one end of the second locking member extends into the avoidance groove 1011, the protrusion 23 has a mounting hole, the other end of the second locking member extends into the mounting hole and is used to lock the light source assembly to the upper cover 2. The light source assembly includes a reflector 31 and a light source board 32 connected to the reflector 31, the main housing 1 has a first step portion 101 opposite to the reflector 31, and the avoidance groove 1011 is provided on the first step portion 101. In specific applications, the light source board 32 is flatly mounted on the reflector 31 and tightened with nuts on the back; the upper cover 2 is provided with a protrusion 23 (four rectangular screw columns in this embodiment), and the reflector 31 is inverted on the four rectangular screw columns and fastened with a combination screw; the main shell 1 is provided with an avoidance groove 1011 for avoiding the fastening screws of the reflector 31, which effectively reduces the height dimension and reduces the weight of the LED emergency light; the main shell 1 and the upper cover 2 form a sealed single-cavity structure, and the drive component 5 is arranged in the sealed single-cavity structure; one end of the two screw columns that fasten the drive component 5 is connected to the bracket screw bulge, which saves space and facilitates mold forming, and the other end is staggered with the screw column of the power cover 9 to make full use of the length space. The length direction of the LED emergency light is compactly arranged, which greatly reduces the length dimension of the lamp; the drive component 5 and the light source component are connected by plug-in terminals to reduce welding points and have a stable structure.

[0044] Furthermore, the upper cover 2 has a first flange portion 24, and the main shell 1 has a second flange portion 102 connected to the first flange portion 24; the outer sides of the upper cover 2 and the main shell 1 are both provided with a plurality of reinforcing ribs, and the spacing between a plurality of adjacent reinforcing ribs is less than 25 mm; not only the strength of the upper cover 2 and the main shell 1 is increased, but also the impact resistance is increased, and the structure is more stable. In this embodiment, the thickness of the first flange portion 24 and the second flange portion 102 is not less than 6 mm, the first flange portion 24 and the second flange portion 102 are butt-jointed, and locked by a locking member, and the inner cavity is a sealed single cavity structure.

[0045] The area between the upper cover 2 and the transparent part 6 for filling the sealant is a glue bonding surface, and the width of the glue bonding surface is not less than 10 mm; the transparent part 6 is pre-positioned on the upper cover 2 by gluing, and the surrounding glue groove (i.e., the edge of the upper cover 2 close to the transparent part 6 or the junction of the upper cover 2 and the transparent part 6) is dripped with glue to form a glue bonding surface (m). In this embodiment, the width of the glue bonding surface is 10 mm, and the sealing effect is good.

[0046] Furthermore, the main shell 1 has a shell main panel 103, the power supply component 4 and the drive component 5 are arranged at intervals and are both connected to the shell main panel 103; the power supply component 4 is also covered with a power cover component, and the power cover component is fixedly connected to the shell main panel 103.

[0047] Furthermore, the LED emergency light also includes a drive housing disposed on the housing main panel 103, and the drive assembly 5 is disposed in the drive housing; a drive sealant is also filled between the drive assembly 5 and the drive housing. The drive housing is an aluminum housing, and the drive assembly 5 is placed in the aluminum housing for sealant. The drive housing is attached to the main housing 1, which can quickly dissipate heat and has a good heat dissipation effect.

[0048] Furthermore, the LED emergency light also includes a current limiting member 15 disposed on one side of the power supply assembly 4; the power supply cover assembly includes a power supply cover 9 and a flexible member 16; the flexible member 16 is sandwiched between the power supply assembly 4 and the power supply cover 9 to protect the power supply assembly 4. In this embodiment, the current limiting member 15 is a current limiting resistor, the power supply assembly 4 includes a battery, the battery is placed in the power supply cover 9, the current limiting resistor is assembled on the left side of the battery, the flexible member 16 is a rubber pad, and the rubber pad can be made into a rubber sleeve that matches the outer dimensions of the battery; in another embodiment, a sheet rubber pad is placed on the top and bottom of the battery, and the rubber pads on both sides are attached to the two side walls of the power supply cover 9 to fill the gap between the battery and the power supply cover 9, and the battery is clamped by the rubber pads on the side walls, and a certain shock absorption and buffering is provided for the power supply assembly 4, and the structure is stable.

[0049] Furthermore, a sealing groove is provided on the side of the upper cover 2 facing the main housing 1, and the LED emergency light further comprises a sealing member 10 provided in the sealing groove, and the sealing member 10 is used for sealing between the upper cover 2 and the main housing 1, and the sealing is reliable. Specifically, the sealing member 10 is a special-shaped sealing member; in this embodiment, the side of the upper cover 2 facing the main housing 1 has a rectangular mounting hole, the sealing groove is a rectangular sealing groove located at the rectangular mounting hole, and the sealing member 10 is a corresponding rectangular sealing member, which further improves the reliability of the sealing; in another embodiment, the sealing member is a special-shaped sealing member, that is, the cross section of the sealing member is special-shaped, and the sealing reliability is better.

[0050] Furthermore, the outer side of the main shell 1 is also provided with a U-shaped bracket 11, two adjustment disks 12 for adjusting the angle of the U-shaped bracket 11, and a bracket locking member 13 passing through the two adjustment disks 12 and extending into one side of the main shell 1 to lock the angle of the U-shaped bracket 11; one of the adjustment disks 12a is fastened to the main shell 1, and the other adjustment disk 12b is fastened to the U-shaped bracket 11; in this embodiment, the optional U-shaped bracket 11 can meet two installation methods: side wall and ceiling; one of the adjustment disks 12a is fastened to the main shell 1 by screws, and the other adjustment disk 12b is fastened to the U-shaped bracket 11 by screws; when the angle needs to be adjusted, before tightening the bracket locking members 13 (screws in this embodiment) on both sides of the U-shaped bracket 11, manually twist the U-shaped bracket 11 or the lamp to adjust to the set angle, and then tighten the screws, the angle of the U-shaped bracket 11 can be accurately adjusted, the minimum angle increment is 15°, and the angle adjustment from 0 to 120° can be achieved, the adjustment range is large, and it is convenient to use.

[0051] The top of the upper cover 2 is also provided with a protective net 14 for protecting the transparent member 6. In this embodiment, the protective net 14 is equipped with a mesh cover and adopts a simple design; the four corners of the protective net 14 are notched to reduce the bending process, avoid interference with the upper cover 2, and also increase the strength of the four corners of the upper cover 2. As an optional embodiment, the emergency lighting power of the LED emergency light is large, the power is up to 10W, and the emergency lighting time is greater than 1.5 hours, which can fully meet the lighting needs of customers for maintenance and emergencies, so that customers can reduce the use of handheld lamps during maintenance, free their hands, and increase maintenance efficiency; the power supply component 4 includes an emergency battery, and the LED emergency light has an intelligent control module connected to the emergency battery and used for intelligent connection in an emergency state. The emergency function can be intelligently lit. Once the main power is disconnected, the intelligent module controls the connection with the emergency battery and can automatically light up without manual operation; the LED emergency light has a simple structure and saves energy. Once the main power is connected, the LED emergency light automatically goes out; if the lamp needs to be turned off when the main power is not connected, the power supply can be turned on and off three times in a row; the LED emergency light also includes a clamping nut 18 arranged on the side of the main shell 1. The LED emergency light is connected from both sides of the length direction of the main shell 1, and the clamping nut 18 and the filler are used to ensure the safe introduction of the cable (such as Figure 4 As shown), the compression nut 18 is threadedly connected with the main housing (as shown Figure 5 The number of thread engagement threads is not less than 8 threads (8 threads in this embodiment), and the effective length of thread engagement is not less than 10 mm; there is a flameproof joint surface between the upper cover 2 and the main housing 1 (as shown in FIG. Figure 5 As shown in p), the length of the explosion-proof joint surface is not less than 8mm; the LED emergency light is installed with double rings 17, which is safe and reliable.

[0052] A flameproof and intrinsically safe LED emergency light for mining provided in an embodiment of the present invention adopts a sealed single-cavity structure design, that is, the driving assembly 5 and the light source assembly are both arranged in the same chamber. Compared with the flameproof and intrinsically safe separate chamber structures in the prior art, the connecting device between the flameproof chamber and the intrinsically safe chamber can be omitted, and the internal structure is simplified. The structure is simpler, the disassembly and assembly are more convenient, and the sealing is good, the flameproof effect is good, and the cost is low. The pre-positioning and sealing of the sealant can facilitate the further assembly of the transparent part 6, and the sealing effect is better.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A flameproof and intrinsically safe LED emergency light for mining, characterized in that: The LED emergency light comprises a housing component with a sealed single-cavity structure, wherein the housing component comprises a main housing and an upper cover connected to the main housing; the LED emergency light further comprises a power supply component and a driving component connected to the power supply component, and the upper cover is connected to a transparent component and a light source component; the driving component, the power supply component and the light source component are all arranged in the sealed single-cavity structure; and a sealant is also filled between the upper cover and the transparent component; The power cover assembly includes a power cover, a flexible member sandwiched between the power cover and used to protect the power cover, wherein the flexible member is a rubber sleeve adapted to the outer dimensions of the battery; the area between the upper cover and the transparent member for filling the sealant is an adhesive bonding surface, and the width of the adhesive bonding surface is not less than 10 mm; the transparent member is pre-positioned on the upper cover by gluing, and the adhesive bonding surface is formed after glue is dripped in the adhesive groove near the edge of the transparent member or around the junction of the upper cover and the transparent member; The upper cover has a transverse shoulder portion that is concave inward and used to abut against the transparent member and a mounting portion that is integrally connected to the transverse shoulder portion. The upper cover also has a raised portion, which is a rectangular screw column. The main housing is provided with an avoidance groove opposite to the raised portion. The raised portion is spaced or adjacent to the mounting portion. The raised portion has a mounting hole. The LED emergency light also includes a first mounting plate, which is connected to the transparent member and the mounting portion. A protection net for protecting the transparent member is also provided on the top of the upper cover, and gaps are provided at the four corners of the protection net for avoiding interference with the upper cover.

2. The LED emergency light according to claim 1, characterized in that: The LED emergency light also includes a first locking member for locking the first mounting plate to the upper cover.

3. The LED emergency light as claimed in claim 2, characterized in that: The LED emergency light also includes a second locking piece, one end of which extends into the avoidance groove, the protrusion has a mounting hole, and the other end of the second locking piece extends into the mounting hole and is used to lock the light source assembly to the upper cover.

4. The LED emergency light as claimed in claim 3, characterized in that: The light source assembly includes a reflector and a light source board connected to the reflector, the main housing has a first step portion opposite to the reflector, and the avoidance groove is arranged on the first step portion.

5. The LED emergency light as claimed in claim 4, characterized in that: The upper cover has a first flange portion, and the main housing has a second flange portion connected to the first flange portion; The outer sides of the upper cover and the main shell are both provided with a plurality of reinforcing ribs, and the spacing between adjacent reinforcing ribs is less than 25 mm.

6. The LED emergency light according to any one of claims 1 to 5, characterized in that: The main shell has a shell main panel, the power supply assembly and the drive assembly are arranged at intervals and are both connected to the shell main panel; the power supply assembly is also covered with a power cover assembly, and the power cover assembly is fixedly connected to the shell main panel.

7. The LED emergency light according to claim 6, characterized in that: The LED emergency light also includes a driving shell arranged on the main panel of the shell, and the driving component is arranged in the driving shell; and driving sealing glue is also filled between the driving component and the driving shell.

8. The LED emergency light according to claim 6, characterized in that: The LED emergency light also includes a current limiting component arranged on one side of the power supply assembly.

9. The LED emergency light according to claim 6, characterized in that: A sealing groove is arranged on one side of the upper cover facing the main shell, and the LED emergency light further comprises a sealing member arranged in the sealing groove and used for sealing between the upper cover and the main shell.

10. The LED emergency light according to claim 6, characterized in that: The outside of the main shell is also provided with a U-shaped bracket, two adjustment disks for adjusting the angle of the U-shaped bracket, and a bracket locking piece that passes through the two adjustment disks and extends into one side of the main shell to lock the angle of the U-shaped bracket; one of the adjustment disks is fastened to the main shell, and the other adjustment disk is fastened to the U-shaped bracket.

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