A three-chamber explosion-proof lamp

Abstract

The present invention discloses a three-chamber explosion-proof lamp, which relates to the field of explosion-proof lamps. The technical solution of the present invention includes a lamp base, a power supply box and a U-shaped bracket; a wire harness is connected to the rear end of the lamp base; the front end of the lamp base is connected to the back surface of the power supply box; a light source circuit board is attached to the front surface of the power supply box, and the light source circuit board is provided with through holes. A power supply is built into the power supply box. Support columns are provided on the inner side wall of the power supply box close to the light source circuit board, and the power supply is fixed on the support columns. A plurality of heat dissipation fins are provided on the inner side wall of the power supply box far from the light source circuit board; both ends of the U-shaped bracket are respectively hinged to the side surface of the power supply box. It can separate the light source circuit board, the power supply and the quick connection, avoid the superposition of heat, help the heat of the three parts to dissipate separately, and a light source circuit board with a higher power can be adopted to provide greater brightness.

Description

Technical Field

[0001] The present invention relates to the field of explosion-proof lamps, and particularly to a three-chamber explosion-proof lamp. Background Art

[0002] With the development of the economy and the progress of society, energy conservation has become an inevitability and a social consensus. Various electrical appliances are increasingly developing towards the characteristics of energy saving, convenient use, space saving, safe and efficient, and multi-functional in one machine. LED explosion-proof lamps, as an important member of industrial lighting appliances, are no exception.

[0003] LED explosion-proof lamps are composed of a housing, lamp beads, a storage battery, etc. In the conventional housing type, the light source chamber and the power supply chamber share one housing, which can save one set of housing, but it will cause the heat dissipated by the aluminum substrate and the heat dissipated by the power supply to be superimposed, affecting the overall performance of the lamp. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a three-chamber explosion-proof lamp, which can separate the light source circuit board, the storage battery and the quick connection, avoid the mutual superposition of heat, help the heat of the three parts to dissipate separately, and can adopt a light source circuit board with a larger power to provide a greater brightness.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a three-chamber explosion-proof lamp, including a lamp base, a power supply box and a U-shaped bracket;

[0006] The rear end of the lamp base is connected to a wiring harness;

[0007] The front end of the lamp base is connected to the back surface of the power supply box;

[0008] A light source circuit board is attached to the front surface of the power supply box. The light source circuit board is provided with through holes, and the power supply box is provided with coupling holes corresponding to the through holes. The coupling holes extend a coupling tube towards the through holes, and the coupling tube passes through the through holes. The light source circuit board is locked to the front surface of the power supply box by screws. An annular heat dissipation cover is provided on the periphery of the light source circuit board. The annular heat dissipation cover is fixed to the front surface of the power supply box. A transparent plate spaced from the light source circuit board is provided inside the annular heat dissipation cover. A plurality of heat dissipation fins are radially provided on the outer wall of the annular heat dissipation cover;

[0009] A storage battery is built in the power supply box. A support column is provided on the inner side wall of the power supply box close to the light source circuit board, and the storage battery is fixed on the support column. A plurality of heat dissipation fins are provided on the inner side wall of the power supply box far from the light source circuit board;

[0010] Both ends of the U-shaped bracket are respectively hinged to the side surfaces of the power supply box.

[0011] This solution can separate the light source circuit board, battery, and quick connection parts by combining three chambers of the lamp board, power supply box, and lamp socket. It can avoid the superposition of heat, help the three parts dissipate heat separately, and can use a light source circuit board with a higher power to provide greater brightness. At the same time, in this solution, the light source circuit board is arranged on the front of the power supply box, and the overall structure is more compact while maintaining the necessary heat dissipation effect.

[0012] Preferably, the lamp socket includes a fixed bin and a wire harness tube. The back of the fixed bin is butt-connected and communicated with the front end of the wire harness tube. The front end of the fixed bin is open. A quick plug is provided in the fixed bin. The front of the fixed bin is butt-connected to the back of the power supply box, and a quick socket adapted to the quick plug is provided on the back of the power supply box. The quick plug fixed bin can quickly connect the battery to the power supply box.

[0013] Preferably, the quick plug is fixed on a spring piece. The spring piece can keep the quick plug in a pre-tightened state with the quick socket to avoid loosening.

[0014] Preferably, a grounding terminal is provided in the fixed bin. To ensure grounding safety.

[0015] Preferably, side platforms are respectively provided on both sides of the power supply box. Screws for fixing the annular heat dissipation cover are provided on the side platforms. One end of an L-shaped connecting piece is fixed to the back of the side platform. The other end of the L-shaped connecting piece extends backward. Both ends of the U-shaped bracket are respectively connected to the L-shaped connecting piece. The L-shaped connecting piece can be better connected to the side platform.

[0016] Preferably, two fixing holes are provided at the other end of the L-shaped connecting piece. The end of the U-shaped bracket is connected to the two fixing holes through two bolts. The two fixing holes can better determine the position of the U-shaped bracket and lock its degrees of freedom at two points.

[0017] Preferably, a quick connection device is provided at the rear end of the wire harness tube. The quick connection device includes a connecting pipe, an inner connecting pipe, an expansion pipe, a pressing ring, and a threaded sleeve. The front end of the connecting pipe is in threaded fit with the inside of the wire harness tube. The inner connecting pipe is sleeved inside the connecting pipe. A pushing platform is provided on the periphery of the expansion pipe. The front end of the expansion pipe is sleeved inside the rear end of the inner connecting pipe. The outer wall of the rear end of the expansion pipe is set as a conical surface. The pressing ring is sleeved outside the conical surface. An end platform is provided on the inner wall of the front end of the threaded sleeve. The front end of the threaded sleeve is in threaded fit with the rear end of the connecting pipe. The end platform abuts against the pressing ring. By connecting the connecting pipe to the wire harness tube in a threaded manner and simultaneously connecting the threaded sleeve to the connecting pipe in a threaded manner, the threaded sleeve can push the pressing ring to move inward. When the pressing ring acts on the expansion pipe, it contracts inward to squeeze the internal wire harness, thereby realizing the locking and fixing of the wire harness.

[0018] Preferably, the power supply box includes a back plate and a cover bin. The back plate is disposed at the rear port of the cover bin, and the front end of the lamp holder is fixed to the back plate. The cooperation mode of the back plate and the cover bin can better open the power supply box, facilitating the replacement and repair of the storage battery.

[0019] Preferably, a contact cylinder is provided on the front surface of the back plate. The contact cylinder is fixed to the rear port of the cover bin, and a sealing ring is provided between the contact cylinder and the cover bin. By providing the contact cylinder, the connection surface between the back plate and the cover bin can be increased, improving its fixing strength.

[0020] Advantages of the present invention:

[0021] Separating the light source circuit board, the storage battery, and the quick connection into three parts can avoid the superposition of heat, help the heat of the three parts dissipate separately, and a light source circuit board with a higher power can be adopted to provide greater brightness. Although the three-chamber method is adopted, since the light source circuit board is disposed on the front end surface of the power supply box, the overall structure is thinner and lighter. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the following drawings are only three of the drawings of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Internal schematic diagram of the embodiment of the present invention;

[0024] Figure 2 External schematic diagram of the embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the quick connection device of the embodiment of the present invention;

[0026] Wherein, annular heat dissipation cover 1, cover bin 2, back plate 3, contact cylinder 4, fixed bin 5, wire harness cylinder 6, quick plug 7, spring piece 8, grounding terminal 9, support column 10, storage battery 11, U-shaped bracket 12, connecting pipe 13, L-shaped connecting piece 14, side platform 15, sealing ring 16, heat dissipation fin 17, connecting pipe 18, inner connecting pipe 19, expansion pipe 20, pressing ring 21, threaded sleeve 22, quick socket 23, lamp holder 24, power supply box 25, light source circuit board 26, heat dissipation fin 27. Detailed Embodiments

[0027] To deepen the understanding of the present invention, the following will further describe the present invention in detail in conjunction with the drawings and embodiments. This embodiment is only used to explain the present invention and does not limit the protection scope of the present invention.

[0028] Embodiment

[0029] As Figure 1 shown, a three - chamber explosion - proof lamp includes a lamp base 24, a power supply box 25 and a U - shaped bracket 12.

[0030] The rear end of the lamp base 24 is connected to a wire harness; the front end of the lamp base 24 is connected to the back surface of the power supply box 25.

[0031] A light source circuit board 26 is attached to the front surface of the power supply box 25. The light source circuit board 26 is provided with through - holes. The power supply box 25 is provided with mating holes corresponding to the through - holes. A mating tube 13 extends from the mating hole towards the through - hole. The mating tube 13 passes through the through - hole. The light source circuit board 26 is locked to the front surface of the power supply box 25 by screws. An annular heat dissipation cover 1 is provided around the light source circuit board 26. The annular heat dissipation cover 1 is fixed to the front surface of the power supply box 25. A transparent plate spaced from the light source circuit board 26 is provided inside the annular heat dissipation cover 1. A plurality of heat dissipation fins 17 are radially provided on the outer wall of the annular heat dissipation cover 1;

[0032] A storage battery 11 is built into the power supply box 25. A support column 10 is provided on the inner side wall of the power supply box 25 close to the light source circuit board 26. The storage battery 11 is fixed on the support column 10. A plurality of heat dissipation fins 27 are provided on the inner side wall of the power supply box 25 away from the light source circuit board 26;

[0033] Both ends of the U - shaped bracket 12 are respectively hinged to the side surface of the power supply box 25.

[0034] In this solution, by means of the cooperation of three chambers of the lamp board, the power supply box 25 and the lamp base 24, the light source circuit board 26, the storage battery 11 and the quick connection can be separated, which can avoid the superposition of heat, help the heat of the three parts to dissipate separately, and a light source circuit board 26 with a higher power can be used to provide greater brightness. At the same time, in this solution, the light source circuit board 26 is arranged on the front surface of the power supply box 25, and the overall structure is more compact while maintaining the necessary heat dissipation effect.

[0035] The lamp base 24 includes a fixed bin 5 and a wire harness cylinder 6. The back surface of the fixed bin 5 is docked and communicated with the front end of the wire harness cylinder 6. The front end of the fixed bin 5 is open. A quick - plug connector 7 is provided inside the fixed bin 5. The front surface of the fixed bin 5 is docked to the back surface of the power supply box 25. A quick - plug socket 23 adapted to the quick - plug connector 7 is provided on the back surface of the power supply box 25. The connection between the storage battery 11 is quickly realized between the fixed bin 5 and the power supply box 25 through the quick - plug connector 7.

[0036] The quick-connect plug 7 is fixed on the spring piece 8. Through the spring piece 8, the quick-connect plug 7 can be kept in a pre-tight state with the quick-connect socket 23 to avoid loosening. A ground wire post 9 is provided in the fixed bin 5 to ensure grounding safety.

[0037] On both sides of the power supply box 25, there are side platforms 15 respectively. The side platforms 15 are provided with screws for fixing to the annular heat dissipation cover 1. The back surface of the side platform 15 is fixed to one end of the L-shaped connecting piece 14. The other end of the L-shaped connecting piece 14 extends backward. Both ends of the U-shaped bracket 12 are respectively connected to the L-shaped connecting piece 14. Through the L-shaped connecting piece 14, it can be better connected and fixed to the side platform 15.

[0038] The other end of the L-shaped connecting piece 14 is provided with two fixing holes. The end of the U-shaped bracket 12 is connected to the two fixing holes through two bolts. Through the two fixing holes, the position of the U-shaped bracket 12 can be better determined, and its degrees of freedom are locked at two points.

[0039] The rear end of the wire harness tube 6 is provided with a quick-connect device. The quick-connect device includes a connecting pipe 18, an inner connecting pipe 19, an expansion pipe 20, a pressing ring 21 and a threaded sleeve 22. The front end of the connecting pipe 18 is in threaded fit with the inside of the wire harness tube 6. The inner connecting pipe 19 is sleeved inside the connecting pipe 18. A pushing platform is provided on the periphery of the expansion pipe 20. The front end of the expansion pipe 20 is sleeved inside the rear end of the inner connecting pipe 19. The outer wall of the rear end of the expansion pipe 20 is set as a conical surface. The conical surface is sleeved with the pressing ring 21. The front end inner wall of the threaded sleeve 22 is provided with an end platform. The front end of the threaded sleeve 22 is in threaded fit with the rear end of the connecting pipe 18. The end platform abuts against the pressing ring 21. Through the threaded connection between the connecting pipe 18 and the wire harness tube 6, and at the same time the threaded connection between the threaded sleeve 22 and the connecting pipe 18, the threaded sleeve 22 can push the pressing ring 21 to move inward. When the pressing ring 21 acts on the expansion pipe 20, it contracts inward and squeezes the internal wire harness, thereby realizing the locking and fixing of the wire harness.

[0040] The power supply box 25 includes a back plate 3 and a cover bin 2. The back plate 3 is arranged at the rear port of the cover bin 2. The front end of the lamp socket 24 is fixed to the back plate 3. Through the cooperation mode of the back plate 3 and the cover bin 2, the power supply box 25 can be better opened, which is convenient for replacing and repairing the battery 11.

[0041] The front surface of the back plate 3 is provided with a contact cylinder 4. The contact cylinder 4 is fixed to the rear port of the cover bin 2. A sealing ring 16 is provided between the contact cylinder 4 and the cover bin 2. By setting the contact cylinder 4, the connection surface between the back plate 3 and the cover bin 2 can be improved, and its fixing strength can be enhanced.

[0042] Separating the light source circuit board 26, the storage battery 11, and the quick connection can avoid the superposition of heat, help the heat of the three parts dissipate separately, allow the use of a light source circuit board 26 with a higher power, and provide greater brightness. Although the three-chamber method is adopted, since the light source circuit board 26 is arranged on the front end face of the power supply box 25, the overall structure is thinner and lighter.

[0043] The above embodiments should not limit the present invention in any way. Any technical solutions obtained by means of equivalent replacement or equivalent conversion fall within the protection scope of the present invention.

Claims

1. A three-chamber explosion-proof lamp, characterized in that, It includes a lamp holder (24), a power supply box (25) and a U-shaped bracket (12); The rear end of the lamp holder (24) is connected to a wiring harness; The front end of the lamp holder (24) is connected to the back side of the power box (25); The front of the power box (25) is provided with a light source circuit board (26), the light source circuit board (26) is provided with a through hole, the power box (25) is provided with a coupling hole corresponding to the through hole, the coupling hole is provided with a coupling tube (13) extending toward the through hole, the coupling tube (13) is passed through the through hole, the light source circuit board (26) is locked to the front of the power box (25) by screws, the periphery of the light source circuit board (26) is provided with an annular heat dissipation cover (1), the annular heat dissipation cover (1) is fixed to the front of the power box (25), a transparent plate spaced from the light source circuit board (26) is provided inside the annular heat dissipation cover (1), and a plurality of heat dissipation fins (17) are radially provided on the outer wall of the annular heat dissipation cover (1); The power box (25) has a built-in storage battery (11); the inner side wall of the power box (25) close to the light source circuit board (26) is provided with a support column (10); the storage battery (11) is fixed on the support column (10); the inner side wall of the power box (25) away from the light source circuit board (26) is provided with a plurality of heat dissipation fins (27); The two ends of the U-shaped bracket (12) are respectively hinged to the side surfaces of the power box (25); The lamp holder (24) comprises a fixed compartment (5) and a wire harness barrel (6); the back of the fixed compartment (5) is connected to the front of the wire harness barrel (6); the front of the fixed compartment (5) is open; a quick-plug plug (7) is provided in the fixed compartment (5); the front of the fixed compartment (5) is connected to the back of the power box (25); and the back of the power box (25) is provided with a quick-plug socket (23) adapted to the quick-plug plug (7); The quick-connect plug (7) is fixed on the spring sheet (8); the power supply box (25) comprises a back plate (3) and a cover compartment (2); the back plate (3) is arranged at the rear port of the cover compartment (2); and the front end of the lamp holder (24) is fixed to the back plate (3); A contact cylinder (4) is provided on the front surface of the back plate (3), the contact cylinder (4) is fixed to the rear port of the cover bin (2), and a sealing ring (16) is provided between the contact cylinder (4) and the cover bin (2); A quick-connect device is provided at the rear end of the wire harness tube (6). The quick-connect device includes a connecting pipe (18), an inner connecting pipe (19), an expansion pipe (20), a pressing ring (21), and a threaded sleeve (22). The front end of the connecting pipe (18) is in threaded fit inside the wire harness tube (6). The inner connecting pipe (19) is sleeved inside the connecting pipe (18). A push table is provided on the periphery of the expansion pipe (20). The front end of the expansion pipe (20) is sleeved inside the rear end of the inner connecting pipe (19). The outer wall of the rear end of the expansion pipe (20) is set as a conical surface. The pressing ring (21) is sleeved outside the conical surface. A terminal platform is provided on the inner wall of the front end of the threaded sleeve (22). The front end of the threaded sleeve (22) is in threaded fit with the rear end of the connecting pipe (18). The terminal platform abuts against the pressing ring (21).

2. The three-chamber explosion-proof lamp according to claim 1, characterized in that: A ground wire post (9) is provided inside the fixed bin (5).

3. A three-chamber explosion-proof lamp according to claim 1, characterized in that: Side platforms (15) are respectively provided on both sides of the power supply box (25). Screws for fixing with the annular heat dissipation cover (1) are provided on the side platforms (15). The back surface of the side platforms (15) is fixed to one end of an L-shaped connecting piece (14). The other end of the L-shaped connecting piece (14) extends backward. Both ends of the U-shaped bracket (12) are respectively fixed to the L-shaped connecting piece (14).

4. A three-chamber explosion-proof lamp according to claim 3, characterized in that: Two fixing holes are provided at the other end of the L-shaped connecting piece (14). The ends of the U-shaped bracket (12) are connected to the two fixing holes through two bolts.

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